TimeDerivative

(test/tests/kernels/adv_diff_reaction/adv_diff_reaction_transient_test.i)

[Mesh]
  dim              = 2
  file             = Mesh12.e
[]

[Variables]
  active = 'phi'

  [./phi]
    order  = SECOND
    family = LAGRANGE
  [../]

[]

[Kernels]

  active = 'trans advection diffusion source'

  [./trans]
    type     = TimeDerivative
    variable = phi
  [../]

  [./advection]
    type     = Advection0
    variable = phi
    Au       = 10.
    Bu       = -6.
    Cu       =  5.
    Av       = 10.
    Bv       =  8.
    Cv       = -1.
  [../]

  [./diffusion]
    type     = Diffusion0
    variable = phi
    Ak       = 10.
    Bk       = 0.1
    Ck       = 0.1
  [../]

  [./source]
    type     = ForcingFunctionXYZ0
    variable = phi
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
    Au       = 10.
    Bu       = -6.
    Cu       =  5.
    Av       = 10.
    Bv       =  8.
    Cv       = -1.
    Ak       = 10.
    Bk       = 0.1
    Ck       = 0.1
  [../]

[]

[BCs]

  active = 'btm_sca rgt_sca top_sca lft_sca'

  [./btm_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 1
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

  [./rgt_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 2
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

  [./top_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 3
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

  [./lft_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 4
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

[]

[Executioner]
  type                 = Transient #Steady
  scheme               = bdf2
  nl_rel_tol           = 1e-10

  solve_type = 'PJFNK'

  petsc_options_iname  = '-pc_factor_levels -pc_factor_mat_ordering_type'
  petsc_options_value  = '20 rcm'

  start_time      = 0.0
  end_time        = 1.
  num_steps       = 60000
  dt              = .2
  n_startup_steps = 0
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/console/console_transient.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  start_time = -1
  end_time = 0
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  verbose = true
[]


[Outputs]
  execute_on = 'timestep_end'
  [./screen]
    type = Console
    verbose = true
    time_precision = 6
    execute_on = 'failed nonlinear linear timestep_begin timestep_end'
  [../]
[]

(modules/porous_flow/test/tests/jacobian/hcs01.i)

# apply a half-cubic sink flux and observe the correct behavior
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph1_sp0]
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'ppwater ppgas massfrac_ph0_sp0 massfrac_ph1_sp0'
    number_fluid_phases = 2
    number_fluid_components = 2
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
[]

[ICs]
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph1_sp0'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
[]

[BCs]
  [flux_w]
    type = PorousFlowHalfCubicSink
    boundary = 'left'
    center = 0.1
    cutoff = -1.1
    max = 2.2
    variable = ppwater
    mass_fraction_component = 0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
    flux_function = 'x*y'
  []
  [flux_g]
    type = PorousFlowHalfCubicSink
    boundary = 'top left front'
    center = 0.5
    cutoff = -1.1
    max = -2.2
    mass_fraction_component = 0
    variable = ppgas
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-x*y'
  []
  [flux_1]
    type = PorousFlowHalfCubicSink
    boundary = 'right'
    center = -0.1
    cutoff = -1.1
    max = 1.2
    mass_fraction_component = 1
    variable = massfrac_ph0_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-1.1*x*y'
  []
  [flux_2]
    type = PorousFlowHalfCubicSink
    boundary = 'bottom'
    center = 3.2
    cutoff = -1.1
    max = 1.2
    mass_fraction_component = 1
    variable = massfrac_ph1_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '0.5*x*y'
  []
[]

[Preconditioning]
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 2
[]

[Outputs]
  file_base = hcs01
[]

(test/tests/postprocessors/num_iterations/num_iterations.i)

# This tests if the correct number of nonlinear and linear iterations for a time
# step are recovered for each time integrator scheme.
#
# The gold files for each time integrator scheme were created manually by
# observing the numbers of iterations per time step.

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./time_der]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    preset = false
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    preset = false
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  [./TimeIntegrator]
    # The time integrator type is provided by the tests file
  [../]
  num_steps = 2
  abort_on_solve_fail = true
  dt = 1e-4

  nl_abs_tol = 1e-8
  nl_rel_tol = 0
  nl_max_its = 5
[]

[Postprocessors]
  [./num_nonlinear_iterations]
    type = NumNonlinearIterations
  [../]
  [./num_linear_iterations]
    type = NumLinearIterations
  [../]
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/move/multilevel_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = sub.i
    output_in_position = true
  [../]
[]

(test/tests/multiapps/relaxation/sub_relaxed_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./v]
  [../]
[]

[AuxVariables]
  [./u]
  [../]
[]

[Kernels]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./force_v]
    type = CoupledForce
    variable = v
    v = u
  [../]
  [./time_v]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  [./left_v]
    type = DirichletBC
    variable = v
    boundary = left
    value = 2
  [../]
  [./right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-10
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/from_full_solve/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/auxkernels/parsed_aux/xyzt.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 4
  ny = 4
  nz = 4
[]

# [Variables]
#   [u]
#   []
# []
#
# [Kernels]
#   [diff]
#     type = CoefDiffusion
#     variable = u
#     coef = 0.1
#   []
#   [dt]
#     type = TimeDerivative
#     variable = u
#   []
# []

[AuxVariables]
  [xvar]
    family = MONOMIAL
    order = FIRST
  []
  [yvar]
  []
  [zvar]
    family = MONOMIAL
    order = CONSTANT
  []
  [tvar]
  []
[]

[AuxKernels]
  [xvar]
    type = ParsedAux
    variable = xvar
    use_xyzt = true
    expression = 'x+1'
  []
  [yvar]
    type = ParsedAux
    variable = yvar
    use_xyzt = true
    expression = 'y+2'
  []
  [zvar]
    type = ParsedAux
    variable = zvar
    use_xyzt = true
    expression = 'z+3'
  []
  [tvar]
    type = ParsedAux
    variable = tvar
    use_xyzt = true
    expression = 't+0.1*(x+y+z)'
    execute_on = 'INITIAL TIMESTEP_END'
  []
[]

[Problem]
  solve = false
  kernel_coverage_check = false
[]

[Executioner]
  type = Transient
  num_steps = 3
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/mobility_derivative/AC_mobility_derivative_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 40
  xmax = 25
[]

[Variables]
  [./op]
  [../]
[]

[ICs]
  [./op_IC]
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 6.0
    invalue = 1
    outvalue = 0
    int_width = 3.0
    variable = op
  [../]
[]

[Kernels]
  [./op_dot]
    type = TimeDerivative
    variable = op
  [../]
  [./op_bulk]
    type = AllenCahn
    variable = op
    f_name = F
    mob_name = L
  [../]
  [./op_interface]
    type = ACInterface
    variable = op
    kappa_name = 1
    mob_name = L
  [../]
[]

[Materials]
  [./consts]
    type = DerivativeParsedMaterial
    property_name  = L
    expression = 'if(op<0, 0.01, if(op>1, 0.01, 1*op^2*(1-op)^2+0.01))'
    coupled_variables = 'op'
    outputs = exodus
    output_properties = 'L dL/dop dL/dv'
    derivative_order = 2
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'op'
    expression = '2*op^2*(1-op)^2 - 0.2*op'
    derivative_order = 2
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'

  l_max_its = 15
  l_tol = 1.0e-4

  nl_max_its = 15
  nl_rel_tol = 1.0e-9

  start_time = 0.0
  num_steps = 20
  dt = 2.0
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
[]

(modules/porous_flow/test/tests/basic_advection/except1.i)

# phase number is too high in PorousFlowBasicAdvection
[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 100
  xmin = 0
  xmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [P]
  []
[]

[ICs]
  [P]
    type = FunctionIC
    variable = P
    function = '2*(1-x)'
  []
  [u]
    type = FunctionIC
    variable = u
    function = 'if(x<0.1,1,0)'
  []
[]

[Kernels]
  [u_dot]
    type = TimeDerivative
    variable = u
  []
  [u_advection]
    type = PorousFlowBasicAdvection
    variable = u
    phase = 1
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = ''
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    density0 = 4
    thermal_expansion = 0
    viscosity = 150.0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = P
    capillary_pressure = pc
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '5 0 0 0 5 0 0 0 5'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 0
    phase = 0
  []
  [darcy_velocity]
    type = PorousFlowDarcyVelocityMaterial
    gravity = '0.25 0 0'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = 1
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = 0
    variable = u
  []
[]

[Preconditioning]
  [basic]
    type = SMP
    full = true
    petsc_options_iname = '-pc_type -snes_rtol'
    petsc_options_value = ' lu       1E-10'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 5
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
[]

(test/tests/outputs/intervals/sync_times.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 15
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  verbose = true
[]

[Outputs]
  execute_on = 'timestep_end'
  [out]
    type = Exodus
    sync_times = '0.15 0.375 0.892'
    sync_only = true
  []
[]

(modules/porous_flow/test/tests/poroperm/poro_hm.i)

# Test that porosity is correctly calculated.
# Porosity = biot + (phi0 - biot) * exp(-vol_strain + (biot_prime - 1) / solid_bulk * (porepressure - ref_pressure))
# The parameters used are:
# biot = 0.7
# biot_prime = 0.75
# phi0 = 0.5
# vol_strain = 0.5
# solid_bulk = 0.3
# porepressure = 2
# ref_pressure = 3
# which yield porosity = 0.420877515
[Mesh]
  type = GeneratedMesh
  dim = 3
[]

[GlobalParams]
  PorousFlowDictator = dictator
  displacements = 'disp_x disp_y disp_z'
  biot_coefficient = 0.7
[]

[Variables]
  [porepressure]
    initial_condition = 2
  []
  [disp_x]
  []
  [disp_y]
  []
  [disp_z]
  []
[]

[ICs]
  [disp_x]
    type = FunctionIC
    function = '0.5 * x'
    variable = disp_x
  []
[]

[Kernels]
  [dummy_p]
    type = TimeDerivative
    variable = porepressure
  []
  [dummy_x]
    type = TimeDerivative
    variable = disp_x
  []
  [dummy_y]
    type = TimeDerivative
    variable = disp_y
  []
  [dummy_z]
    type = TimeDerivative
    variable = disp_z
  []
[]

[AuxVariables]
  [porosity]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [porosity]
    type = PorousFlowPropertyAux
    property = porosity
    variable = porosity
  []
[]

[Postprocessors]
  [porosity]
    type = PointValue
    variable = porosity
    point = '0 0 0'
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'porepressure'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = 3
  []
  [eff_fluid_pressure]
    type = PorousFlowEffectiveFluidPressure
  []
  [total_strain]
    type = ComputeSmallStrain
  []
  [vol_strain]
    type = PorousFlowVolumetricStrain
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = porepressure
    capillary_pressure = pc
  []
  [porosity]
    type = PorousFlowPorosity
    fluid = true
    mechanical = true
    ensure_positive = false
    porosity_zero = 0.5
    solid_bulk = 0.3
    reference_porepressure = 3
    biot_coefficient_prime = 0.75
  []
[]

[Executioner]
  solve_type = Newton
  type = Transient
  num_steps = 1
[]

[Outputs]
  csv = true
[]

(modules/phase_field/test/tests/MultiSmoothCircleIC/multismoothcircleIC_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 15
  ny = 15
  nz = 15
  xmin = 0
  xmax = 100
  ymin = 0
  ymax = 100
  zmin = 0
  zmax = 100
  elem_type = HEX8
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./c]
    type = MultiSmoothCircleIC
    variable = c
    invalue = 1.0
    outvalue = 0.0001
    bubspac = 30.0 # This spacing is from bubble center to bubble center
    numbub = 6
    radius = 10.0
    int_width = 12.0
    radius_variation = 0.2
    radius_variation_type = uniform
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./diff]
    type = MatDiffusion
    variable = c
    diffusivity = D_v
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y z'
    [../]
  [../]
[]

[Materials]
  [./Dv]
    type = GenericConstantMaterial
    prop_names = D_v
    prop_values = 0.074802
  [../]
[]

[Postprocessors]
  [./bubbles]
    type = FeatureFloodCount
    variable = c
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart -mat_mffd_type'
  petsc_options_value = 'hypre boomeramg 101 ds'
  l_max_its = 20
  l_tol = 1e-4
  nl_max_its = 20
  nl_rel_tol = 1e-9
  nl_abs_tol = 1e-11
  start_time = 0.0
  num_steps = 1
  dt = 100.0
  [./Adaptivity]
    refine_fraction = .5
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/jacobian/pls03.i)

# PorousFlowPiecewiseLinearSink with 2-phase, 3-components
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 2
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph0_sp1]
  []
  [massfrac_ph1_sp0]
  []
  [massfrac_ph1_sp1]
  []
[]


[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'ppwater ppgas massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
    number_fluid_phases = 2
    number_fluid_components = 3
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
[]

[ICs]
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph0_sp1]
    type = RandomIC
    variable = massfrac_ph0_sp1
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp1]
    type = RandomIC
    variable = massfrac_ph1_sp1
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m01]
    type = TimeDerivative
    variable = massfrac_ph0_sp1
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
  [dummy_m11]
    type = TimeDerivative
    variable = massfrac_ph1_sp1
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
[]

[BCs]
  [flux_w]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'left'
    pt_vals = '-1 -0.5 0'
    multipliers = '1 2 4'
    variable = ppwater
    mass_fraction_component = 0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
    flux_function = 'x*y'
  []
  [flux_g]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'top'
    pt_vals = '0 0.5 1'
    multipliers = '1 -2 4'
    mass_fraction_component = 0
    variable = ppgas
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-x*y'
  []
  [flux_1]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'right'
    pt_vals = '0 0.5 1'
    multipliers = '1 3 4'
    mass_fraction_component = 1
    variable = massfrac_ph0_sp0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
  []
  [flux_2]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'back top'
    pt_vals = '0 0.5 1'
    multipliers = '0 1 -3'
    mass_fraction_component = 1
    variable = massfrac_ph1_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '0.5*x*y'
  []
  [flux_3]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'right'
    pt_vals = '0 0.5 1'
    multipliers = '1 3 4'
    mass_fraction_component = 2
    variable = ppwater
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
  []
  [flux_4]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'back top'
    pt_vals = '0 0.5 1'
    multipliers = '0 1 -3'
    mass_fraction_component = 2
    variable = massfrac_ph1_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-0.5*x*y'
  []
[]

[Preconditioning]
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 2
[]

[Outputs]
  file_base = pls03
[]

(test/tests/functions/piecewise_multilinear/except1.i)

# PiecewiseMultilinear function exception test
# Data file does not exist

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 1
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./f]
  [../]
[]

[AuxKernels]
  [./f_auxK]
    type = FunctionAux
    variable = f
    function = except1_fcn
  [../]
[]


[Functions]
  [./except1_fcn]
    type = PiecewiseMultilinear
    data_file = except1.txt
  [../]
[]


[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = except1
  hide = dummy
  csv = true
[]

(test/tests/materials/output/limited_via_outputs.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmax = 10
  ymax = 10
  uniform_refine = 1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 10
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Materials]
  [./test_material]
    type = OutputTestMaterial
    block = 0
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [./out]
    type = Exodus
    output_material_properties = true
    show_material_properties = 'real_property vector_property'
  [../]
[]

(test/tests/meshgenerators/subdomain_bounding_box_generator/subdomain_bounding_box_generator_outside.i)

[Mesh]
  [./gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
    xmax = 1
    ymax = 1
    #uniform_refine = 2
  []

  [./subdomains]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    bottom_left = '0.1 0.1 0'
    block_id = 1
    top_right = '0.9 0.9 0'
    location = OUTSIDE
  []
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = MatCoefDiffusion
    variable = u
    conductivity = 'k'
    block = '0 1'
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Materials]
  [./outside]
    type = GenericConstantMaterial
    block = 0
    prop_names = 'k'
    prop_values = 1
  [../]
  [./inside]
    type = GenericConstantMaterial
    block = 1
    prop_names = 'k'
    prop_values = 0.1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/anisotropic_mobility/nonsplit.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  xmax = 15.0
  ymax = 15.0
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
    [./InitialCondition]
      type = CrossIC
      x1 = 0.0
      x2 = 30.0
      y1 = 0.0
      y2 = 30.0
    [../]
  [../]
[]

[Kernels]
  [./cres]
    type = CahnHilliardAniso
    variable = c
    mob_name = M
    f_name = F
  [../]
  [./int]
    type = CHInterfaceAniso
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./kappa]
    type = GenericConstantMaterial
    prop_names = 'kappa_c'
    prop_values = '2.0'
  [../]
  [./mob]
    type = ConstantAnisotropicMobility
    tensor = '0.1 0 0
              0   1 0
              0   0 0'
    M_name = M
  [../]
  [./free_energy]
    type = MathEBFreeEnergy
    property_name = F
    c = c
  [../]
[]

[Preconditioning]
  [./SMP]
   type = SMP
   full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'BDF2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31      lu      1'

  l_max_its = 30
  l_tol = 1.0e-4
  nl_max_its = 50
  nl_rel_tol = 1.0e-10

  dt = 10.0
  num_steps = 2
[]

[Outputs]
  exodus = true
  print_linear_residuals = true
  perf_graph = true
[]

(test/tests/multiapps/restart/parent2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  ymin = 0
  xmax = 1
  ymax = 1
  nx = 10
  ny = 10
[]

[Functions]
  [v_fn]
    type = ParsedFunction
    expression = t*x
  []
  [ffn]
    type = ParsedFunction
    expression = x
  []
[]

[AuxVariables]
  [v]
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [ufn]
    type = BodyForce
    variable = u
    function = ffn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = v_fn
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    app_type = MooseTestApp
    type = TransientMultiApp
    input_files = 'sub2.i'
    execute_on = timestep_end
    positions = '0 -1 0'
  []
[]

[Transfers]
  [from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub_app
    source_variable = u
    variable = v
  []
[]

[Problem]
  restart_file_base = parent_out_cp/0005
[]

(test/tests/restart/restart_diffusion/exodus_refined_refined_restart_2_test.i)

[Mesh]
  file = exodus_refined_restart_1.e
  uniform_refine = 1
  # Restart relies on the ExodusII_IO::copy_nodal_solution()
  # functionality, which only works with ReplicatedMesh.
  parallel_type = replicated
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
    initial_from_file_var = u
    initial_from_file_timestep = 2
  [../]
[]

[Kernels]
  active = 'bodyforce ie'

  [./bodyforce]
    type = BodyForce
    variable = u
    value = 10.0
  [../]

  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 10
  dt = .1
[]

[Outputs]
  file_base = exodus_refined_refined_restart_2
  exodus = true
[]

(test/tests/outputs/csv_final_and_latest/latest.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.25
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

# Vector Postprocessor System
[VectorPostprocessors]
  [./line_sample]
    type = LineValueSampler
    execute_on = 'timestep_end'
    variable = 'u'
    start_point = '0 0.5 0'
    end_point = '1 0.5 0'
    num_points = 11
    sort_by = id
  [../]
[]

[Outputs]
  [./out]
    type = CSV
    execute_on = 'TIMESTEP_END'
    create_latest_symlink = true
  [../]
[]

(test/tests/multiapps/steffensen_postprocessor/transient_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  parallel_type = replicated
  uniform_refine = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [sink]
    type = BodyForce
    variable = u
    value = -1
  []
[]

[BCs]
  [right]
    type = PostprocessorDirichletBC
    variable = u
    boundary = right
    postprocessor = 'from_main'
  []
[]

[Postprocessors]
  [from_main]
    type = Receiver
    default = 0
  []
  [to_main]
    type = SideAverageValue
    variable = u
    boundary = left
  []
  [average]
    type = ElementAverageValue
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-14

  fixed_point_algorithm = 'steffensen'
[]

[Outputs]
  [csv]
    type = CSV
    start_step = 6
  []
  exodus = false
[]

(modules/phase_field/test/tests/SoretDiffusion/direct.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = 1000
  nx = 25
[]

[GlobalParams]
  polynomial_order = 8
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c_IC]
    type = SmoothCircleIC
    x1 = 175.0
    y1 = 0.0
    radius = 100
    invalue = 1.0
    outvalue = 0.01
    int_width = 100.0
    variable = c
  [../]
[]

[AuxVariables]
  [./T]
  [../]
[]

[Kernels]
  [./c_int]
    type = CHInterface
    variable = c
    kappa_name = kappa
    mob_name = M
  [../]
  [./c_bulk]
    type = CahnHilliard
    variable = c
    mob_name = M
    f_name = F
  [../]
  [./c_soret]
    type = SoretDiffusion
    variable = c
    T = T
    diff_name = D
    Q_name = Qstar
  [../]
  [./c_dot]
    type = TimeDerivative
    variable = c
  [../]
[]

[AuxKernels]
  [./Temp]
    type = FunctionAux
    variable = T
    function = 1000.0+0.025*x
  [../]
[]

[Materials]
  [./Copper]
    type = PFParamsPolyFreeEnergy
    block = 0
    c = c
    T = T # K
    int_width = 80.0
    length_scale = 1.0e-9
    time_scale = 1.0e-6
    D0 = 3.1e-5 # m^2/s, from Brown1980
    Em = 0.71 # in eV, from Balluffi1978 Table 2
    Ef = 1.28 # in eV, from Balluffi1978 Table 2
    surface_energy = 0.708 # Total guess
  [../]
  [./free_energy]
    type = PolynomialFreeEnergy
    block = 0
    c = c
    outputs = exodus
    derivative_order = 3
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'
  solve_type = 'NEWTON'

  l_max_its = 10
  l_tol = 1.0e-4
  nl_max_its = 25
  nl_rel_tol = 1.0e-9

  start_time = 0.0
  num_steps = 60
  dt = 1
[]

[Outputs]
  exodus = true
[]

(test/tests/meshgenerators/block_deletion_generator/delete_interior_parents.i)

[Mesh]
  [twoquad]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 3
    ny = 4
    xmax = 2
  []
  [subdomain]
    type = SubdomainBoundingBoxGenerator
    input = twoquad
    block_id = 1
    bottom_left = '1 0 0'
    top_right = '2 1 0'
  []
  [sideset1]
    type = SideSetsBetweenSubdomainsGenerator
    input = subdomain
    primary_block = 0
    paired_block = 1
    new_boundary = bar
  []
  [lowerblock1]
    type = LowerDBlockFromSidesetGenerator
    input = sideset1
    sidesets = bar
    new_block_id = 2
  []
  [sideset2]
    type = SideSetsBetweenSubdomainsGenerator
    input = lowerblock1
    primary_block = 1
    paired_block = 0
    new_boundary = baz
  []
  [delete]
    type = BlockDeletionGenerator
    input = sideset2
    block = 0
  []
  [lowerblock2]
    type = LowerDBlockFromSidesetGenerator
    input = delete
    sidesets = baz
    new_block_id = 3
  []
[]


[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./dt]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./top]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 10
  dt = 10

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/bdf2/bdf2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
  elem_type = QUAD9
[]

[Variables]
  active = 'u'

  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  start_time = 0.0
  num_steps = 5
  dt = 0.25

#  [./Adaptivity]
#    refine_fraction = 0.2
#    coarsen_fraction = 0.3
#    max_h_level = 4
#  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(modules/misc/test/tests/dynamic_loading/dynamic_load_multiapp/misc_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    positions = '0.5 0.5 0'
    type = TransientMultiApp
    input_files = 'phase_field_sub.i'

    # Here we'll attempt to load a different module that's not compiled into this module
    app_type = PhaseFieldApp

    # Here we set an input file specific relative library path instead of using MOOSE_LIBRARY_PATH
    library_path = '../../../../../phase_field/lib'
  [../]
[]

(test/tests/auxkernels/old_older_material_aux/old_mat_in_aux.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[AuxVariables]
  [./aux]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./old_mat_aux]
    type = OldMaterialAux
    property_name = prop
    variable = aux
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Functions]
  [./func]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Materials]
  [./mat]
    type = GenericFunctionMaterial
    prop_names = prop
    prop_values = func
    block = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_userobject_transfer/3d_1d_parent.i)

# This does a dummy diffusion solve in 3D space, then computes a layered average
# in the z direction. Those values are transferred into a sub-app that has 1D mesh
# in the z-direction (the mesh was displaced so that it is aligned in such a way).
# The sub-app also does a dummy diffusion solve and then computes layered average
# in the z-direction. Those value are transferred back to the parent app.
#
# Physically the 1D sub-app is placed in the center of the 3D mesh and is oriented
# in the z-direction.  The bounding box of the sub-app is expanded such that it
# contains the 4 central elements of the 3D mesh (i.e. the values are transferred
# only into a part of parent mesh)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 4
  ny = 4
  nz = 10
  # The MultiAppUserObjectTransfer object only works with ReplicatedMesh
  parallel_type = replicated
[]

[AuxVariables]
  [./from_sub_app_var]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[UserObjects]
  [main_uo]
    type = LayeredAverage
    direction = z
    num_layers = 10
    variable = u
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = front
    value = -1
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = back
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 5

  solve_type = 'NEWTON'
  l_tol = 1e-8
  nl_rel_tol = 1e-10
[]

[Outputs]
  exodus = true
  execute_on = final
[]

[MultiApps]
  [sub_app]
    positions = '0.5 0.5 0.0'
    type = TransientMultiApp
    input_files = 3d_1d_sub.i
    app_type = MooseTestApp
    bounding_box_padding = '0.25 0.25 0'
    bounding_box_inflation = 0
    use_displaced_mesh = true
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [layered_transfer_to_sub_app]
    type = MultiAppUserObjectTransfer
    user_object = main_uo
    variable = sub_app_var
    to_multi_app = sub_app
    displaced_target_mesh = true
  []
  [layered_transfer_from_sub_app]
    type = MultiAppUserObjectTransfer
    user_object = sub_app_uo
    variable = from_sub_app_var
    from_multi_app = sub_app
    displaced_source_mesh = true
  []
[]

(python/peacock/tests/common/lcf1.i)

# LinearCombinationFunction function test
# See [Functions] block for a description of the tests

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 10
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./the_linear_combo]
  [../]
[]

[AuxKernels]
  [./the_linear_combo]
    type = FunctionAux
    variable = the_linear_combo
    function = the_linear_combo
  [../]
[]


[Functions]
  [./xtimes]
    type = ParsedFunction
    expression = 1.1*x
  [../]

  [./twoxplus1]
    type = ParsedFunction
    expression = 2*x+1
  [../]

  [./xsquared]
    type = ParsedFunction
    expression = (x-2)*x
  [../]

  [./tover2]
    type = ParsedFunction
    expression = 0.5*t
  [../]

  [./the_linear_combo]
    type = LinearCombinationFunction
    functions = 'xtimes twoxplus1 xsquared tover2'
    w = '3 -1.2 0.4 3'
  [../]

  [./should_be_answer]
    type = ParsedFunction
    expression = 3*1.1*x-1.2*(2*x+1)+0.4*(x-2)*x+3*0.5*t
  [../]
[]

[Postprocessors]
  [./should_be_zero]
    type = NodalL2Error
    function = should_be_answer
    variable = the_linear_combo
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.5
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = lcf1
  hide = dummy
  exodus = false
  csv = true
[]

(modules/level_set/test/tests/transfers/markers/single_level/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Adaptivity]
  marker = marker
  max_h_level = 1
  [./Markers]
    [./marker]
      type = BoxMarker
      bottom_left = '0.25 0.25 0'
      top_right = '0.75 0.75 0'
      outside =  DO_NOTHING
      inside = REFINE
    [../]
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = LevelSetProblem
[]

[Executioner]
  type = Transient
  num_steps = 2
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[MultiApps]
  [./sub]
    type = LevelSetReinitializationMultiApp
    input_files = 'sub.i'
    execute_on = TIMESTEP_BEGIN
  [../]
[]

[Transfers]
  [./marker_to_sub]
    type = LevelSetMeshRefinementTransfer
    to_multi_app = sub
    source_variable = marker
    variable = marker
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/restart/kernel_restartable/kernel_restartable.i)

###########################################################
# This test exercises the restart system and verifies
# correctness with parallel computation, but distributed
# and with threading.
#
# See kernel_restartable_second.i
#
# @Requirement F1.60
# @Requirement P1.10
# @Requirement P1.20
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = RestartDiffusion
    variable = u
    coef = 1
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 1e-2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
  [./restart]
    type = Checkpoint
    num_files = 100
  [../]
[]

(modules/phase_field/test/tests/phase_field_crystal/PFCEnergyDensity/auxkernel.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmax = 6
  ymax = 6
  zmax = 0
[]

[Variables]
  [./n]
    [./InitialCondition]
      type = RandomIC
      min = 0.0
      max = 0.1
    [../]
  [../]
  [./u]
    scaling = 1e2
  [../]
  [./v]
    scaling = 1e1
  [../]
[]

[AuxVariables]
  [./ed]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./edrff0]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./edrff1]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./edrff2]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./ndot]
    type = TimeDerivative
    variable = n
  [../]
  [./n_bulk]
    type = CHBulkPFCTrad
    variable = n
  [../]
  [./u_term]
    type = MatDiffusion
    variable = n
    v = u
    diffusivity = C2
  [../]
  [./v_term]
    type = MatDiffusion
    variable = n
    v = v
    diffusivity = C4
  [../]
  [./u_rctn]
    type = Reaction
    variable = u
  [../]
  [./u_gradn]
    type = LaplacianSplit
    variable = u
    c = n
  [../]
  [./v_rctn]
    type = Reaction
    variable = v
  [../]
  [./v_gradu]
    type = LaplacianSplit
    variable = v
    c = u
  [../]
[]

[AuxKernels]
  [./Energy_n]
    type = PFCEnergyDensity
    execute_on = 'initial timestep_end'
    variable = ed
    v = 'n u v'
  [../]

  [./Energy_rff0]
    type = PFCRFFEnergyDensity
    execute_on = 'initial timestep_end'
    variable = edrff0
    log_approach = tolerance
    v = 'n u v'
  [../]
  [./Energy_rff1]
    type = PFCRFFEnergyDensity
    execute_on = 'initial timestep_end'
    variable = edrff1
    log_approach = cancelation
    v = 'n u v'
  [../]
  [./Energy_rff2]
    type = PFCRFFEnergyDensity
    execute_on = 'initial timestep_end'
    variable = edrff2
    log_approach = expansion
    v = 'n u v'
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./PFCTrad]
    type = PFCTradMaterial
    order = FOURTH
  [../]
[]

[Postprocessors]
  [./Total_free_energy]
    type = PFCElementEnergyIntegral
    variable = ed
    execute_on = 'initial timestep_end'
  [../]
[]

[Preconditioning]
  active = 'SMP'
  [./SMP]
    type = SMP
    full = false
    off_diag_row = 'u n n v'
    off_diag_column = 'n u v u'
  [../]
  [./FDP]
    type = FDP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON

  # petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  # petsc_options_value = 'hypre boomeramg 101'
  # petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  # petsc_options_value = 'asm         101   preonly   lu      1'
  petsc_options_iname = '-pc_type '
  petsc_options_value = 'lu '

  l_max_its = 100
  l_tol = 1e-04
  nl_rel_tol = 1e-09
  nl_abs_tol = 1e-11

  num_steps = 1
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/transfer_on_final/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
    initial_condition = 10
  []
[]

[AuxVariables]
  [v]
    initial_condition = 20
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 10
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 20
  []
[]

[Executioner]
  type = Transient
  num_steps = 4
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [final]
    type = Exodus
    execute_on = 'FINAL'
    execute_input_on = 'NONE' # This is needed to avoid problems with creating a file w/o data during --recover testing
  []
[]

(test/tests/multiapps/multiple_position_files/sub2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 2
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/functions/piecewise_multilinear/oneDa.i)

# PiecewiseMultilinear function tests in 1D
# See [Functions] block for a description of the tests
# All tests yield variable = 1 everywhere, so they are compared using postprocessors

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 10
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./end1_var]
  [../]

  [./end2_var]
  [../]

  [./end3_var]
  [../]

  [./end4_var]
  [../]

  [./one_pt1_var]
  [../]

  [./one_pt2_var]
  [../]

  [./one_pt3_var]
  [../]

  [./other_axis1_var]
  [../]

  [./other_axis2_var]
  [../]

  [./other_axis3_var]
  [../]
[]

[AuxKernels]
  [./end1_auxK]
    type = FunctionAux
    variable = end1_var
    function = end1_fcn
  [../]

  [./end2_auxK]
    type = FunctionAux
    variable = end2_var
    function = end2_fcn
  [../]

  [./end3_auxK]
    type = FunctionAux
    variable = end3_var
    function = end3_fcn
  [../]

  [./end4_auxK]
    type = FunctionAux
    variable = end4_var
    function = end4_fcn
  [../]

  [./one_pt1_auxK]
    type = FunctionAux
    variable = one_pt1_var
    function = one_pt1_fcn
  [../]

  [./one_pt2_auxK]
    type = FunctionAux
    variable = one_pt2_var
    function = one_pt2_fcn
  [../]

  [./one_pt3_auxK]
    type = FunctionAux
    variable = one_pt3_var
    function = one_pt3_fcn
  [../]

  [./other_axis1_auxK]
    type = FunctionAux
    variable = other_axis1_var
    function = other_axis1_fcn
  [../]

  [./other_axis2_auxK]
    type = FunctionAux
    variable = other_axis2_var
    function = other_axis2_fcn
  [../]

  [./other_axis3_auxK]
    type = FunctionAux
    variable = other_axis3_var
    function = other_axis3_fcn
  [../]
[]


[Functions]
# The result (which is unity) that all the functions should yield
  [./answer_fcn]
    type = ConstantFunction
    value = 1
  [../]

# Function that is 1 for all x>=0, due to data only being defined on x<0
  [./end1_fcn]
    type = PiecewiseMultilinear
    data_file = end1.txt
  [../]

# Function that is 1 for all x>=0, due to data only being defined on x<=0
  [./end2_fcn]
    type = PiecewiseMultilinear
    data_file = end2.txt
  [../]

# Function that is 1 for all x<=2, due to data only being defined on x>2
  [./end3_fcn]
    type = PiecewiseMultilinear
    data_file = end3.txt
  [../]

# Function that is 1 for all x<=2, due to data only being defined on x>=2
  [./end4_fcn]
    type = PiecewiseMultilinear
    data_file = end4.txt
  [../]

# Function that is 1 for all x, due to only one point being defined on X at x=2
  [./one_pt1_fcn]
    type = PiecewiseMultilinear
    data_file = one_pt1.txt
  [../]

# Function that is 1 for all x, due to only one point being defined on X at x=1
  [./one_pt2_fcn]
    type = PiecewiseMultilinear
    data_file = one_pt2.txt
  [../]

# Function that is 1 for all x, due to only one point being defined on X at x=-1
  [./one_pt3_fcn]
    type = PiecewiseMultilinear
    data_file = one_pt3.txt
  [../]

# Function that is 1 for all x, and data is defined on Y axis only
  [./other_axis1_fcn]
    type = PiecewiseMultilinear
    data_file = other_axis1.txt
  [../]

# Function that is 1 for all x, and data is defined on T axis only for t>=1
  [./other_axis2_fcn]
    type = PiecewiseMultilinear
    data_file = other_axis2.txt
  [../]

# Function that is 1 for all x, and data that is unity and defined on T axis for -1<=t<=1
  [./other_axis3_fcn]
    type = PiecewiseMultilinear
    data_file = other_axis3.txt
  [../]
[]

[Postprocessors]
  [./end1_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = end1_var
  [../]
  [./end2_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = end2_var
  [../]
  [./end3_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = end3_var
  [../]
  [./one_pt1_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = one_pt1_var
  [../]
  [./one_pt2_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = one_pt2_var
  [../]
  [./one_pt3_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = one_pt3_var
  [../]
  [./other_axis1_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = other_axis1_var
  [../]
  [./other_axis2_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = other_axis2_var
  [../]
  [./other_axis3_pp]
    type = NodalL2Error
    function = answer_fcn
    variable = other_axis3_var
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.5
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = oneDa
  hide = dummy
  exodus = false
  csv = true
[]

(modules/porous_flow/test/tests/aux_kernels/darcy_velocity_lower_2D.i)

# checking that the PorousFlowDarcyVelocityComponentLowerDimensional AuxKernel works as expected in 1D+2D situation
# for the fully-saturated case (relative-permeability = 1)
# The 1_frac_in_2D_example.e has size 0.3x0.2x0, and a fracture running through its
# centre, with normal = (0, 1, 0)
# Porepressure is initialised to grad(P) = (1, 2, 0)
# Fluid_density = 2
# viscosity = 10
# relative_permeability = 1
# permeability = (5, 5, 5)  (in the bulk, measured in m^2)
# permeability = (10, 10, 10)   (in the fracture, measured in m^3)
# aperture = 0.01
# gravity = (1, 0.5, 0)
# So Darcy velocity in the bulk = (0.5, -0.5, 0)
# in the fracture grad(P) = (1, 0, 0)
# In the fracture the projected gravity vector is
# tangential_gravity = (1, 0, 0)
# So the Darcy velocity in the fracture = (100, 0, 0)

[Mesh]
  type = FileMesh
  file = 1_frac_in_2D_example.e
[]

[GlobalParams]
  PorousFlowDictator = dictator
  gravity = '1 0.5 0'
[]

[Variables]
  [pp]
  []
[]

[ICs]
  [pinit]
    type = FunctionIC
    function = 'x+2*y'
    variable = pp
  []
[]

[Kernels]
  [dummy]
    type = TimeDerivative
    variable = pp
  []
[]

[AuxVariables]
  [bulk_vel_x]
    order = CONSTANT
    family = MONOMIAL
    block = '2 3'
  []
  [bulk_vel_y]
    order = CONSTANT
    family = MONOMIAL
    block = '2 3'
  []
  [bulk_vel_z]
    order = CONSTANT
    family = MONOMIAL
    block = '2 3'
  []
  [fracture_vel_x]
    order = CONSTANT
    family = MONOMIAL
    block = 1
  []
  [fracture_vel_y]
    order = CONSTANT
    family = MONOMIAL
    block = 1
  []
  [fracture_vel_z]
    order = CONSTANT
    family = MONOMIAL
    block = 1
  []
[]

[AuxKernels]
  [bulk_vel_x]
    type = PorousFlowDarcyVelocityComponent
    variable = bulk_vel_x
    component = x
    fluid_phase = 0
  []
  [bulk_vel_y]
    type = PorousFlowDarcyVelocityComponent
    variable = bulk_vel_y
    component = y
    fluid_phase = 0
  []
  [bulk_vel_z]
    type = PorousFlowDarcyVelocityComponent
    variable = bulk_vel_z
    component = z
    fluid_phase = 0
  []
  [fracture_vel_x]
    type = PorousFlowDarcyVelocityComponentLowerDimensional
    variable = fracture_vel_x
    component = x
    fluid_phase = 0
    aperture = 0.01
  []
  [fracture_vel_y]
    type = PorousFlowDarcyVelocityComponentLowerDimensional
    variable = fracture_vel_y
    component = y
    fluid_phase = 0
    aperture = 0.01
  []
  [fracture_vel_z]
    type = PorousFlowDarcyVelocityComponentLowerDimensional
    variable = fracture_vel_z
    component = z
    fluid_phase = 0
    aperture = 0.01
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 1E16
    viscosity = 10
    density0 = 2
    thermal_expansion = 0
  []
[]

[Postprocessors]
  [bulk_vel_x]
    type = PointValue
    variable = bulk_vel_x
    point = '0 -0.05 0'
  []
  [bulk_vel_y]
    type = PointValue
    variable = bulk_vel_y
    point = '0 -0.05 0'
  []
  [bulk_vel_z]
    type = PointValue
    variable = bulk_vel_z
    point = '0 -0.05 0'
  []
  [fracture_vel_x]
    type = PointValue
    point = '0 0 0'
    variable = fracture_vel_x
  []
  [fracture_vel_y]
    type = PointValue
    point = '0 0 0'
    variable = fracture_vel_y
  []
  [fracture_vel_z]
    type = PointValue
    point = '0 0 0'
    variable = fracture_vel_z
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '5 0 0 0 5 0 0 0 5'
    block = '2 3'
  []
  [permeability_fracture]
    type = PorousFlowPermeabilityConst
    permeability = '10 0 0 0 10 0 0 0 10'
    block = 1
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  csv = true
[]

(test/tests/functions/parsed/scalar.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./scalar]
    family = SCALAR
    initial_condition = 0
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxScalarKernels]
  [./scalar_aux]
    type = FunctionScalarAux
    variable = scalar
    function = func
  [../]
[]

[BCs]
  [./left]
    type = FunctionDirichletBC
    variable = u
    boundary = left
    function = left_bc
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Functions]
  [./left_bc]
    type = ParsedFunction
    expression = s
    symbol_values = scalar
    symbol_names = s
  [../]
  [./func]
    type = ParsedFunction
    expression = t
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/heat_transfer/test/tests/convective_heat_flux/equilibrium.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 10
[]

[Variables]
  [./temp]
    initial_condition = 200.0
  [../]
[]

[Kernels]
  [./heat_dt]
    type = TimeDerivative
    variable = temp
  [../]
  [./heat_conduction]
    type = Diffusion
    variable = temp
  [../]
[]

[BCs]
  [./right]
    type = ConvectiveHeatFluxBC
    variable = temp
    boundary = 'right'
    T_infinity = 100.0
    heat_transfer_coefficient = 1
    heat_transfer_coefficient_dT = 0
  [../]
[]

[Postprocessors]
  [./left_temp]
    type = SideAverageValue
    variable = temp
    boundary = left
    execute_on = 'TIMESTEP_END initial'
  [../]
  [./right_temp]
    type = SideAverageValue
    variable = temp
    boundary = right
  [../]
  [./right_flux]
    type = SideDiffusiveFluxAverage
    variable = temp
    boundary = right
    diffusivity = 1
  [../]
[]

[Executioner]
  type = Transient

  num_steps = 10
  dt = 1e1

  nl_abs_tol = 1e-12
[]

[Outputs]
  [./out]
    type = CSV
    time_step_interval = 10
  [../]
[]

(modules/combined/test/tests/elastic_patch/ad_elastic_patch_plane_strain.i)

#
# This problem is taken from the Abaqus verification manual:
#   "1.5.1 Membrane patch test"
# The stress solution is given as:
#   xx = yy = 1600
#   zz = 800
#   xy = 400
#   yz = zx = 0
#
# Since the strain is 1e-3 in both directions, the new density should be
#   new_density = original_density * V_0 / V
#   new_density = 0.283 / (1 + 1e-3 + 1e-3) = 0.282435

[GlobalParams]
  displacements = 'disp_x disp_y'
  temperature = temp
[]

[Mesh]
  file = elastic_patch_rz.e
[]

[Variables]
  [temp]
    initial_condition = 117.56
  []
[]

[Physics/SolidMechanics/QuasiStatic/All]
  strain = SMALL
  incremental = true
  planar_formulation = PLANE_STRAIN
  add_variables = true
  generate_output = 'stress_xx stress_yy stress_zz stress_xy stress_yz stress_zx'
[]

[Kernels]
  [heat]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [ur]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 10
    function = '1e-3*(x+0.5*y)'
  []
  [uz]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 10
    function = '1e-3*(y+0.5*x)'
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 1e6
    poissons_ratio = 0.25
  []
  [stress]
    type = ComputeStrainIncrementBasedStress
  []
[]

[Materials]
  [density]
    type = ADDensity
    density = 0.283
    outputs = all
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  end_time = 1.0
[]

[Outputs]
  exodus = true
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test11.i)

[Mesh]
  [fmg]
    type = FileMeshGenerator
    file = pyramid.e
  []

  [sbb2]
    type = SubdomainBoundingBoxGenerator
    input = fmg
    block_id = 2
    bottom_left = '-0.5 -0.5 -0.5'
    top_right = '0.5 0.5 0.5'
  []
  [swiss_cheese2]
    type = BlockDeletionGenerator
    block = 2
    input = 'sbb2'
  []
  [sbb3]
    type = SubdomainBoundingBoxGenerator
    input = swiss_cheese2
    block_id = 3
    bottom_left = '-5 -5 -3'
    top_right = '-2 -2 -1'
  []
  [swiss_cheese3]
    type = BlockDeletionGenerator
    block = 3
    input = 'sbb3'
  []
  [sbb4]
    type = SubdomainBoundingBoxGenerator
    input = swiss_cheese3
    block_id = 4
    bottom_left = '-1 2 -2'
    top_right = '1 5 0'
  []
  [swiss_cheese4]
    type = BlockDeletionGenerator
    block = 4
    input = 'sbb4'
  []
  [sbb5]
    type = OrientedSubdomainBoundingBoxGenerator
    input = swiss_cheese4
    block_id = 5
    center = '2.4 -1.4 0.4'
    height = 3
    length = 8
    length_direction = '-2 1 -1'
    width = 3
    width_direction = '1 2 0'
  []
  [swiss_cheese5]
    type = BlockDeletionGenerator
    block = 5
    input = 'sbb5'
  []
  [sbb6]
    type = OrientedSubdomainBoundingBoxGenerator
    input = swiss_cheese5
    block_id = 6
    center = '-1 0.4 2.2'
    height = 1
    length = 8
    length_direction = '2 -1 -1'
    width = 1
    width_direction = '1 2 0'
  []
  [swiss_cheese6]
    type = BlockDeletionGenerator
    block = 6
    input = 'sbb6'
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [top]
    type = DirichletBC
    variable = u
    boundary = top
    value = 1
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 100
  dt = 100

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(examples/ex18_scalar_kernel/ex18.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Functions]
  # ODEs
  [./exact_x_fn]
    type = ParsedFunction
    expression = (-1/3)*exp(-t)+(4/3)*exp(5*t)
  [../]
  [./exact_y_fn]
    type = ParsedFunction
    expression = (2/3)*exp(-t)+(4/3)*exp(5*t)
  [../]
[]

[Variables]
  [./diffused]
    order = FIRST
    family = LAGRANGE
  [../]

  # ODE variables
  [./x]
    family = SCALAR
    order = FIRST
    initial_condition = 1
  [../]
  [./y]
    family = SCALAR
    order = FIRST
    initial_condition = 2
  [../]

[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = diffused
  [../]
  [./diff]
    type = Diffusion
    variable = diffused
  [../]
[]

[ScalarKernels]
  [./td1]
    type = ODETimeDerivative
    variable = x
  [../]
  [./ode1]
    type = ImplicitODEx
    variable = x
    y = y
  [../]

  [./td2]
    type = ODETimeDerivative
    variable = y
  [../]
  [./ode2]
    type = ImplicitODEy
    variable = y
    x = x
  [../]
[]


[BCs]
  [./right]
    type = ScalarDirichletBC
    variable = diffused
    boundary = 1
    scalar_var = x
  [../]

  [./left]
    type = ScalarDirichletBC
    variable = diffused
    boundary = 3
    scalar_var = y
  [../]
[]

[Postprocessors]
 # to print the values of x, y into a file so we can plot it
  [./x_pp]
    type = ScalarVariable
    variable = x
    execute_on = timestep_end
  [../]

  [./y_pp]
    type = ScalarVariable
    variable = y
    execute_on = timestep_end
  [../]

  [./exact_x]
    type = FunctionValuePostprocessor
    function = exact_x_fn
    execute_on = timestep_end
    point = '0 0 0'
  [../]

  [./exact_y]
    type = FunctionValuePostprocessor
    function = exact_y_fn
    execute_on = timestep_end
    point = '0 0 0'
  [../]

  # Measure the error in ODE solution for 'x'.
  [./l2err_x]
    type = ScalarL2Error
    variable = x
    function = exact_x_fn
  [../]

  # Measure the error in ODE solution for 'y'.
  [./l2err_y]
    type = ScalarL2Error
    variable = y
    function = exact_y_fn
  [../]
[]


[Executioner]
  type = Transient
  start_time = 0
  dt = 0.01
  num_steps = 10

  #Preconditioned JFNK (default)
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

(modules/solid_mechanics/test/tests/power_law_creep/smallstrain.i)

# 1x1x1 unit cube with uniform pressure on top face for the case of small strain.
#  This test does not have a solid mechanics analog because there is not an equvialent
#  small strain with rotations strain calculator material in solid mechanics

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [temp]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1000.0
  []
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = SMALL
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
  []
[]

[Functions]
  [top_pull]
    type = PiecewiseLinear
    x = '0 1'
    y = '1 1'
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = Pressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
    function = top_pull
  []
  [u_bottom_fix]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = DirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
  []
  [radial_return_stress]
    type = ComputeMultipleInelasticStress
    inelastic_models = 'power_law_creep'
    tangent_operator = elastic
  []
  [power_law_creep]
    type = PowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp_ew'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.0
  end_time = 1.0
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(modules/functional_expansion_tools/test/tests/errors/multiapp_missing_sub_object.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '3'
    physical_bounds = '0.0  10.0'
    x = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = multiapp_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Value_UserObject_Main
    multi_app_object_name = FX_Basis_Value
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(test/tests/time_steppers/timesequence_stepper/timesequence_failed_solve.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax =  1
  ymin = -1
  ymax =  1
  nx = 2
  ny = 2
  elem_type = QUAD9
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*t*(x*x+y*y)
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 2*t*(x*x+y*y)-4*t*t
  [../]
[]

[Variables]
  [./u]
    family = LAGRANGE
    order = SECOND
  [../]
[]

[ICs]
  [./u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  # This timestepper does not use dt to set the timestep, it uses the time_sequence.
  # dt = 250
  dtmin=250
  end_time = 3000.0
  [./TimeStepper]
    type = TimeSequenceStepperFailTest
    time_sequence  = '0  1000.0 2000.0'
  [../]
  nl_rel_tol=1.e-10
[]

[Outputs]
  file_base = timesequence_failed_solve
  exodus = true
[]

(modules/solid_mechanics/test/tests/power_law_creep/restart2.i)

# 1x1x1 unit cube with uniform pressure on top face

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [temp]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1000.0
  []
[]

[Problem]
  allow_initial_conditions_with_restart = true
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = FINITE
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
  []
[]

[Functions]
  [top_pull]
    type = PiecewiseLinear
    x = '0 1'
    y = '1 1'
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = Pressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
    function = top_pull
  []
  [u_bottom_fix]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = DirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
  []
  [radial_return_stress]
    type = ComputeMultipleInelasticStress
    inelastic_models = 'power_law_creep'
    tangent_operator = elastic
  []
  [power_law_creep]
    type = PowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.6
  end_time = 1.0
  num_steps = 12
  dt = 0.1
[]

[Outputs]
  # file_base = power_law_creep_out
  exodus = true
[]

[Problem]
  restart_file_base = restart1_out_cp/0006
[]

(test/tests/kernels/ode/ode_expl_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 5
  ny = 5
  elem_type = QUAD4
[]

[Functions]
  [./f_fn]
    type = ParsedFunction
    expression = -4
  [../]
  [./bc_all_fn]
    type = ParsedFunction
    expression = x*x+y*y
  [../]
[]

# NL

[Variables]
  [./u]
    family = LAGRANGE
    order = FIRST
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./uff]
    type = BodyForce
    variable = u
    function = f_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = bc_all_fn
  [../]
[]

# Aux

[AuxVariables]
  [./y]
    family = SCALAR
    order = FIRST
    initial_condition = 1
  [../]
[]

[AuxScalarKernels]
  [./ode1]
    type = ExplicitODE
    variable = y
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0
  dt = 0.1
  num_steps = 10
[]

[Outputs]
  exodus = true
[]

(test/tests/auxkernels/time_derivative/time_derivative_nl.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
  xmin = -5.0
  xmax =  5.0
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./c_dot]
    order = FIRST
    family = LAGRANGE
  [../]
  [./c_dot_elem]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./coupled_dot]
    type = DotCouplingAux
    variable = c_dot
    v = c
  [../]
  [./coupled_dot_elem]
    type = DotCouplingAux
    variable = c_dot_elem
    v = c
  [../]
[]

[ICs]
  [./centered_gauss_func]
    type = FunctionIC
    variable = c
    function = gaussian_1d
  [../]
[]

[Functions]
  [./gaussian_1d]
    type = ParsedFunction
    expression = exp(-x*x/2.0/1.0/1.0)
  [../]
[]

[Kernels]
  [./dot]
    type = TimeDerivative
    variable = c
  [../]
  [./diff]
    type = Diffusion
    variable = c
  [../]
[]

[BCs]
  [./Periodic]
    [./auto]
      variable = c
      auto_direction = 'x'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  dt = 0.1
  num_steps = 5
  petsc_options_iname = -ksp_rtol
  petsc_options_value = 1e-12
[]


[Outputs]
  exodus = true
  #
[]

(test/tests/controls/time_periods/dirackernels/dirac.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  uniform_refine = 2
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.5
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[DiracKernels]
  [./point_source]
    type = ConstantPointSource
    variable = u
    value = 1
    point = '0.25 0.25'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Controls]
  [./point_source]
    type = TimePeriod
    disable_objects = 'DiracKernel::point_source'
    start_time = '0.15'
    end_time = '0.35'
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/outputs/intervals/multiple_sync_times.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  [./exodus_3]
    type = Exodus
    time_step_interval = 3
    file_base = multiple_sync_times_out_3
  [../]
  [./exodus_5]
    type = Exodus
    time_step_interval = 5
    file_base = multiple_sync_times_out_5
  [../]
  [./exodus_sync_0]
    type = Exodus
    sync_times = '0.45 0.525 0.6'
    sync_only = true
    file_base = multiple_sync_times_sync_0
  [../]
  [./exodus_sync_1]
    type = Exodus
    sync_times = '0.475 0.485'
    file_base = multiple_sync_times_sync_1
  [../]
[]

(test/tests/mesh/custom_partitioner/custom_linear_partitioner_test_displacement.i)

[Mesh]
  [gen]
    dim = 2
    type = GeneratedMeshGenerator
    nx = 3
    ny = 3
    xmin = 0.0
    xmax = 1.0
    ymin = 0.0
    ymax = 10.0
  []
  uniform_refine = 2
  displacements = 'u aux_v'

  [./Partitioner]
    type = LibmeshPartitioner
    partitioner = linear
  [../]
  parallel_type = replicated
[]

[Functions]
  [./aux_v_fn]
    type = ParsedFunction
    expression = x*(y-0.5)/5
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./udiff]
    type = Diffusion
    variable = u
  [../]

  [./uie]
    type = TimeDerivative
    variable = u
  [../]

  [./vdiff]
    type = Diffusion
    variable = v
  [../]


  [./vie]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  [./uleft]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]

  [./uright]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 0.1
  [../]

  [./vleft]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 1
  [../]

  [./vright]
    type = DirichletBC
    variable = v
    boundary = 2
    value = 0
  [../]
[]

[AuxVariables]
  [./aux_v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxKernels]
  [./aux_k_1]
    type = FunctionAux
    variable = aux_v
    function = aux_v_fn
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  start_time = 0.0
  num_steps = 2
  dt = .1

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
  [../]
[]

[Outputs]
  file_base = custom_linear_partitioner_test_displacement
  [./out]
    type = Exodus
    use_displaced = true
  [../]
[]

(test/tests/multiapps/restart_multilevel/subsub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 1
  nx = 10
[]

[Functions]
  [./u_fn]
    type = ParsedFunction
    expression = t*x
  [../]
  [./ffn]
    type = ParsedFunction
    expression = x
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./fn]
    type = BodyForce
    variable = u
    function = ffn
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = u_fn
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

(test/tests/auxkernels/aux_scalar_deps/aux_scalar_deps.i)

#
# Testing a solution that is second order in space and first order in time
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[AuxVariables]
  [./a]
    family = SCALAR
    order = FIRST
  [../]
  [./b]
    family = SCALAR
    order = FIRST
  [../]
  [./c]
    family = SCALAR
    order = FIRST
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./a_ic]
    type = ScalarConstantIC
    variable = a
    value = 0
  [../]
  [./b_ic]
    type = ScalarConstantIC
    variable = b
    value = 2
  [../]
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t
  [../]

  [./a_fn]
    type = ParsedFunction
    expression = t
  [../]
  [./b_fn]
    type = ParsedFunction
    expression = (4-t)/2
  [../]
[]

# NOTE: The execute_on = 'timestep_end' is crucial for this test. Without it
# the aux values would be updated during the residual formation and we would
# end up with the right value at the end of the time step. With this flag on,
# the dependencies has to be correct for this test to work. Otherwise the
# values of 'c' will be lagged.

[AuxScalarKernels]
  [./c_saux]
    type = QuotientScalarAux
    variable = c
    numerator = a
    denominator = b
    execute_on = 'timestep_end'
  [../]
  [./a_saux]
    type = FunctionScalarAux
    variable = a
    function = a_fn
    execute_on = 'timestep_end'
  [../]
  [./b_saux]
    type = FunctionScalarAux
    variable = b
    function = b_fn
    execute_on = 'timestep_end'
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'

  solve_type = 'PJFNK'
  start_time = 0.0
  num_steps = 2
  dt = 1
[]

[Outputs]
  exodus = true
[]

(modules/optimization/test/tests/executioners/transient_and_adjoint/self_adjoint.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    xmax = 1
    ymax = 1
    nx = 10
    ny = 10
  []
[]

[Problem]
  nl_sys_names = 'nl0 adjoint'
[]

[Variables]
  [u]
  []
  [u_adjoint]
    solver_sys = adjoint
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [src]
    type = BodyForce
    variable = u
    value = 1
  []
  [src_adjoint]
    type = BodyForce
    variable = u_adjoint
    value = 10
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = u
    boundary = 'top right'
    value = 0
  []
[]

[Executioner]
  type = TransientAndAdjoint
  forward_system = nl0
  adjoint_system = adjoint

  dt = 0.2
  num_steps = 5

  nl_rel_tol = 1e-12
  l_tol = 1e-12
[]

[Postprocessors]
  [u_avg]
    type = ElementAverageValue
    variable = u
    execute_on = 'TIMESTEP_END ADJOINT_TIMESTEP_END'
  []
  [u_adjoint_avg]
    type = ElementAverageValue
    variable = u_adjoint
    execute_on = ADJOINT_TIMESTEP_END
  []
  [inner_product]
    type = VariableInnerProduct
    variable = u
    second_variable = u_adjoint
    execute_on = ADJOINT_TIMESTEP_END
  []
[]

[Outputs]
  [forward]
    type = CSV
  []
  [adjoint]
    type = CSV
    execute_on = 'INITIAL ADJOINT_TIMESTEP_END'
  []
  [console]
    type = Console
    execute_postprocessors_on = 'INITIAL TIMESTEP_END ADJOINT_TIMESTEP_END'
  []
[]

(modules/phase_field/test/tests/MultiSmoothCircleIC/specifiedsmoothcircleIC_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 5
  ny = 5
  nz = 5
  xmin = 0
  xmax = 100
  ymin = 0
  ymax = 100
  zmin = 0
  zmax = 100
  elem_type = HEX8
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./diff]
    type = MatDiffusion
    variable = c
    diffusivity = D_v
  [../]
[]

[ICs]
  [./c]
    type = SpecifiedSmoothCircleIC
    variable = c
    x_positions = '10 50 90'
    y_positions = '30 20 80'
    z_positions = '30 50 75'
    radii = '21 25 16'
    invalue = 1.0
    outvalue = 0.0001
    int_width = 4
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./Dv]
    type = GenericConstantMaterial
    prop_names = D_v
    prop_values = 0.074802
  [../]
[]

[Postprocessors]
  [./bubbles]
    type = FeatureFloodCount
    variable = c
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart -mat_mffd_type'
  petsc_options_value = 'hypre boomeramg 101 ds'
  l_max_its = 20
  l_tol = 1e-4
  nl_max_its = 20
  nl_rel_tol = 1e-9
  nl_abs_tol = 1e-11
  start_time = 0.0
  num_steps = 1
  dt = 100.0
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/picard_postprocessor/transient_main.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  parallel_type = replicated
  uniform_refine = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [source]
    type = BodyForce
    variable = u
    value = 1
  []
[]

[BCs]
  [left]
    type = PostprocessorDirichletBC
    variable = u
    boundary = left
    postprocessor = 'from_sub'
  []
[]

[Postprocessors]
  [coupling_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
  [from_sub]
    type = Receiver
    default = 0
  []
  [to_sub]
    type = SideAverageValue
    variable = u
    boundary = right
  []
  [average]
    type = ElementAverageValue
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-14

  # App coupling parameters
  fixed_point_max_its = 30
  relaxation_factor = 0.8
  transformed_postprocessors = 'from_sub'
[]

[Outputs]
  csv = true
  exodus = false
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = 'transient_sub.i'
    clone_parent_mesh = true
    execute_on = 'timestep_begin'
    # The input was originally created with effectively no restore
    # see the changes made for #5554 then reverted in #28115
    no_restore = true
  []
[]

[Transfers]
  [left_from_sub]
    type = MultiAppPostprocessorTransfer
    from_multi_app = sub
    from_postprocessor = 'to_main'
    to_postprocessor = 'from_sub'
    reduction_type = 'average'
  []
  [right_to_sub]
    type = MultiAppPostprocessorTransfer
    to_multi_app = sub
    from_postprocessor = 'to_sub'
    to_postprocessor = 'from_main'
  []
[]

(test/tests/materials/derivative_material_interface/construction_order.i)

#
# Test the the getDefaultMaterialProperty in DerivativeMaterialInterface.
# This test should only pass, if the construction order of the Materials
# using this interface does not influence the outcome.
#

[Mesh]
  [gen]
   type = GeneratedMeshGenerator
    dim = 2
    nx = 5
    ny = 1
    xmin = 0
    xmax = 1
    ymin = 0
    ymax = 0.1
    elem_type = QUAD4
  []
[]

[GlobalParams]
  derivative_order = 2
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = FunctionIC
      function = x
    [../]
  [../]
[]

[Kernels]
  [./dummy1]
    type = Diffusion
    variable = c
  [../]
  [./dummy2]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  # derivatives used both before and after being declared
  [./sum_a_1]
    type = DerivativeSumMaterial
    property_name = Fa1
    sum_materials = 'Fa'
    coupled_variables = 'c'
    outputs = exodus
  [../]
  [./free_energy_a]
    type = DerivativeParsedMaterial
    property_name = Fa
    coupled_variables = 'c'
    expression = 'c^4'
  [../]
  [./sum_a_2]
    type = DerivativeSumMaterial
    property_name = Fa2
    sum_materials = 'Fa'
    coupled_variables = 'c'
    outputs = exodus
  [../]

  # derivatives declared after being used
  [./sum_b_1]
    type = DerivativeSumMaterial
    property_name = Fb1
    sum_materials = 'Fb'
    coupled_variables = 'c'
    outputs = exodus
  [../]
  [./free_energy_b]
    type = DerivativeParsedMaterial
    property_name = Fb
    coupled_variables = 'c'
    expression = 'c^4'
  [../]

  # derivatives declared before being used
  [./free_energy_c]
    type = DerivativeParsedMaterial
    property_name = Fc
    coupled_variables = 'c'
    expression = 'c^4'
  [../]
  [./sum_c_2]
    type = DerivativeSumMaterial
    property_name = Fc2
    sum_materials = 'Fc'
    coupled_variables = 'c'
    outputs = exodus
  [../]

  # non-existing derivatives
  [./free_energy_d]
    type = ParsedMaterial
    property_name = Fd
    coupled_variables = 'c'
    expression = 'c^4'
  [../]
  [./sum_d_1]
    type = DerivativeSumMaterial
    property_name = Fd1
    sum_materials = 'Fd'
    coupled_variables = 'c'
    outputs = exodus
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = 'NEWTON'
  num_steps = 1
  dt = 1e-5
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(modules/phase_field/test/tests/phase_field_crystal/PFCTrad/PFCTrad_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  xmax = 8
  ymax = 8
[]

[Variables]
  [./n]
    [./InitialCondition]
      type = RandomIC
      min = -1
      max = 4
    [../]
  [../]
  [./u]
    scaling = 1e2
  [../]
  [./v]
    scaling = 1e1
  [../]
[]

[Kernels]
  [./ndot]
    type = TimeDerivative
    variable = n
  [../]
  [./n_bulk]
    type = CHBulkPFCTrad
    variable = n
  [../]
  [./u_term]
    type = MatDiffusion
    variable = n
    v = u
    diffusivity = C2
  [../]
  [./v_term]
    type = MatDiffusion
    variable = n
    v = v
    diffusivity = C4
  [../]
  [./u_rctn]
    type = Reaction
    variable = u
  [../]
  [./u_gradn]
    type = LaplacianSplit
    variable = u
    c = n
  [../]
  [./v_rctn]
    type = Reaction
    variable = v
  [../]
  [./v_gradu]
    type = LaplacianSplit
    variable = v
    c = u
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./PFCTrad]
    type = PFCTradMaterial
    order = FOURTH
  [../]
[]

[Preconditioning]
  active = 'SMP'
  [./SMP]
    type = SMP
    full = false
    off_diag_row    = 'u n n v'
    off_diag_column = 'n u v u'
  [../]
  [./FDP]
    type = FDP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON

  # petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  # petsc_options_value = 'hypre boomeramg 101'
  # petsc_options_iname = -pc_type
  # petsc_options_value = lu
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         101   preonly   lu      5'

  l_max_its = 100
  l_tol = 1e-04
  nl_rel_tol = 1e-09
  nl_abs_tol = 1e-11

  num_steps = 2
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(test/tests/controls/error/multiple_parameters_found.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./diff2]
    type = CoefDiffusion
    variable = u
    coef = 0.2
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Functions]
  [./func_coef]
    type = ParsedFunction
    expression = '2*t + 0.1'
  [../]
[]

[Controls]
  [./func_control]
    type = TestControl
    test_type = 'real'
    parameter = '*/*/coef'
  [../]
[]

(test/tests/materials/stateful_prop/computing_initial_residual_test.i)

[Mesh]
  dim = 3
  file = cube.e
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [prop1]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [prop1_output]
    type = MaterialRealAux
    variable = prop1
    property = thermal_conductivity
  []
[]

[Kernels]
  [heat]
    type = MatDiffusionTest
    variable = u
    prop_name = thermal_conductivity
  []
  [ie]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [bottom]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0.0
  []

  [top]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1.0
  []
[]

[Materials]
  [stateful]
    type = ComputingInitialTest
    block = 1
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  l_max_its = 10
  start_time = 0.0
  num_steps = 5
  dt = .1
  use_pre_SMO_residual = true
[]

[Outputs]
  file_base = computing_initial_residual_test_out
  [out]
    type = Exodus
    elemental_as_nodal = true
    execute_elemental_on = none
  []
[]

(test/tests/kernels/simple_transient_diffusion/simple_transient_diffusion.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/combined/examples/phase_field-mechanics/Nonconserved.i)

#
# Example 2
# Phase change driven by a mechanical (elastic) driving force.
# An oversized phase inclusion grows under a uniaxial tensile stress.
# Check the file below for comments and suggestions for parameter modifications.
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 40
  ny = 40
  nz = 0
  xmin = 0
  xmax = 50
  ymin = 0
  ymax = 50
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 0
      y1 = 0
      radius = 30.0
      invalue = 1.0
      outvalue = 0.0
      int_width = 10.0
    [../]
  [../]
  [./disp_x]
    order = FIRST
    family = LAGRANGE
  [../]
  [./disp_y]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./TensorMechanics]
    displacements = 'disp_x disp_y'
  [../]

  [./eta_bulk]
    type = AllenCahn
    variable = eta
    f_name = F
  [../]
  [./eta_interface]
    type = ACInterface
    variable = eta
    kappa_name = 1
  [../]
  [./time]
    type = TimeDerivative
    variable = eta
  [../]
[]

#
# Try visualizing the stress tensor components as done in Conserved.i
#

[Materials]
  [./consts]
    type = GenericConstantMaterial
    block = 0
    prop_names  = 'L'
    prop_values = '1'
  [../]

  # matrix phase
  [./stiffness_a]
    type = ComputeElasticityTensor
    base_name = phasea
    block = 0
    # lambda, mu values
    C_ijkl = '7 7'
    # Stiffness tensor is created from lambda=7, mu=7 for symmetric_isotropic fill method
    fill_method = symmetric_isotropic
    # See RankFourTensor.h for details on fill methods
  [../]
  [./strain_a]
    type = ComputeSmallStrain
    block = 0
    displacements = 'disp_x disp_y'
    base_name = phasea
  [../]
  [./stress_a]
    type = ComputeLinearElasticStress
    block = 0
    base_name = phasea
  [../]
  [./elastic_free_energy_a]
    type = ElasticEnergyMaterial
    base_name = phasea
    f_name = Fea
    block = 0
    args = ''
  [../]

  # oversized precipitate phase (simulated using thermal expansion)
  [./stiffness_b]
    type = ComputeElasticityTensor
    base_name = phaseb
    block = 0
    # Stiffness tensor lambda, mu values
    # Note that the two phases could have different stiffnesses.
    # Try reducing the precipitate stiffness (to '1 1') rather than making it oversized
    C_ijkl = '7 7'
    fill_method = symmetric_isotropic
  [../]
  [./strain_b]
    type = ComputeSmallStrain
    block = 0
    displacements = 'disp_x disp_y'
    base_name = phaseb
    eigenstrain_names = eigenstrain
  [../]
  [./eigenstrain_b]
    type = ComputeEigenstrain
    base_name = phaseb
    eigen_base = '0.1 0.1 0.1'
    eigenstrain_name = eigenstrain
  [../]
  [./stress_b]
    type = ComputeLinearElasticStress
    block = 0
    base_name = phaseb
  [../]
  [./elastic_free_energy_b]
    type = ElasticEnergyMaterial
    base_name = phaseb
    f_name = Feb
    block = 0
    args = ''
  [../]

  # Generate the global free energy from the phase free energies
  [./switching]
    type = SwitchingFunctionMaterial
    block = 0
    eta = eta
    h_order = SIMPLE
  [../]
  [./barrier]
    type = BarrierFunctionMaterial
    block = 0
    eta = eta
    g_order = SIMPLE
  [../]
  [./free_energy]
    type = DerivativeTwoPhaseMaterial
    block = 0
    f_name = F
    fa_name = Fea
    fb_name = Feb
    eta = eta
    args = ''
    W = 0.1
    derivative_order = 2
  [../]

  # Generate the global stress from the phase stresses
  [./global_stress]
    type = TwoPhaseStressMaterial
    block = 0
    base_A = phasea
    base_B = phaseb
  [../]
[]

[BCs]
  [./bottom_y]
    type = DirichletBC
    variable = disp_y
    boundary = 'bottom'
    value = 0
  [../]
  [./top_y]
    type = DirichletBC
    variable = disp_y
    boundary = 'top'
    value = 5
  [../]
  [./left_x]
    type = DirichletBC
    variable = disp_x
    boundary = 'left'
    value = 0
  [../]
[]

[Preconditioning]
  # active = ' '
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  # this gives best performance on 4 cores
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type  -sub_pc_type '
  petsc_options_value = 'asm       lu'

  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1.0e-10
  start_time = 0.0
  num_steps = 200

  [./TimeStepper]
    type = SolutionTimeAdaptiveDT
    dt = 0.2
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/executioners/adapt_and_modify/adapt_and_modify.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[UserObjects]
  [./rh_uo]
    type = RandomHitUserObject
    execute_on = 'initial timestep_begin'
    num_hits = 1
  [../]
  [./rhsm]
    type = RandomHitSolutionModifier
    execute_on = 'custom'
    modify = u
    random_hits = rh_uo
    amount = 1000
  [../]
[]

[Executioner]
  type = AdaptAndModify
  num_steps = 4
  dt = 1e-3

  solve_type = 'PJFNK'
  nl_rel_tol = 1e-15

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  adapt_cycles = 2
[]

[Adaptivity]
  marker = rhm # Switch to combo to get the effect of both
  [./Indicators]
    [./gji]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./rhm]
      type = RandomHitMarker
      random_hits = rh_uo
    [../]
    [./efm]
      type = ErrorFractionMarker
      coarsen = 0.001
      indicator = gji
      refine = 0.8
    [../]
    [./combo]
      type = ComboMarker
      markers = 'efm rhm'
    [../]
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/examples/rigidbodymotion/AC_CH_advection_constforce_rect.i)

#
# Tests the Rigid Body Motion of grains due to applied forces.
# Concenterated forces and torques have been applied and corresponding
# advection velocities are calculated.
# Grain motion kernels make the grains translate and rotate as a rigidbody,
# applicable to grain movement in porous media
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 25
  nz = 0
  xmax = 50
  ymax = 25
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./vadvx]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./vadvy]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./c_res]
    type = SplitCHParsed
    variable = c
    f_name = F
    kappa_name = kappa_c
    w = w
    coupled_variables = eta
  [../]
  [./w_res]
    type = SplitCHWRes
    variable = w
    mob_name = M
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./motion]
    # advection kernel corrsponding to CH equation
    type = MultiGrainRigidBodyMotion
    variable = w
    c = c
    v = eta
    grain_tracker_object = grain_center
    grain_force = grain_force
    grain_volumes = grain_volumes
  [../]
  [./eta_dot]
    type = TimeDerivative
    variable = eta
  [../]
  [./vadv_eta]
    # advection kernel corrsponding to AC equation
    type = SingleGrainRigidBodyMotion
    variable = eta
    c = c
    v = eta
    grain_tracker_object = grain_center
    grain_force = grain_force
    grain_volumes = grain_volumes
  [../]
  [./acint_eta]
    type = ACInterface
    variable = eta
    mob_name = M
    coupled_variables = c
    kappa_name = kappa_eta
  [../]
  [./acbulk_eta]
    type = AllenCahn
    variable = eta
    mob_name = M
    f_name = F
    coupled_variables = c
  [../]
[]

[AuxKernels]
  [./vadv_x]
    type = GrainAdvectionAux
    component = x
    grain_tracker_object = grain_center
    grain_force = grain_force
    grain_volumes = grain_volumes
    variable = vadvx
  [../]
  [./vadv_y]
    type = GrainAdvectionAux
    component = y
    grain_tracker_object = grain_center
    grain_force = grain_force
    grain_volumes = grain_volumes
    variable = vadvy
  [../]
[]

[Materials]
  [./pfmobility]
    type = GenericConstantMaterial
    prop_names = 'M    kappa_c  kappa_eta'
    prop_values = '1.0  2.0      0.1'
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    coupled_variables = 'c eta'
    constant_names = 'barr_height  cv_eq'
    constant_expressions = '0.1          1.0e-2'
    expression = 16*barr_height*(c-cv_eq)^2*(1-cv_eq-c)^2+(c-eta)^2
    derivative_order = 2
  [../]
[]

[VectorPostprocessors]
  [./forces]
    # VectorPostprocessor for outputting grain forces and torques
    type = GrainForcesPostprocessor
    grain_force = grain_force
  [../]
  [./grain_volumes]
    type = FeatureVolumeVectorPostprocessor
    flood_counter = grain_center
    execute_on = 'initial timestep_begin'
  [../]
[]

[UserObjects]
  [./grain_center]
    type = GrainTracker
    variable = eta
    outputs = none
    compute_var_to_feature_map = true
    execute_on = 'initial timestep_begin'
  [../]
  [./grain_force]
    type = ConstantGrainForceAndTorque
    execute_on = 'linear nonlinear'
    force = '0.2 0.0 0.0 ' # size should be 3 * no. of grains
    torque = '0.0 0.0 5.0 ' # size should be 3 * no. of grains
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  nl_max_its = 30
  scheme = bdf2
  solve_type = NEWTON
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31   preonly   lu      1'
  l_max_its = 30
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  start_time = 0.0
  dt = 0.1
  end_time = 10
[]

[Outputs]
  exodus = true
[]

[ICs]
  [./rect_c]
    y2 = 20.0
    y1 = 5.0
    inside = 1.0
    x2 = 30.0
    variable = c
    x1 = 10.0
    type = BoundingBoxIC
  [../]
  [./rect_eta]
    y2 = 20.0
    y1 = 5.0
    inside = 1.0
    x2 = 30.0
    variable = eta
    x1 = 10.0
    type = BoundingBoxIC
  [../]
[]

(modules/misc/test/tests/dynamic_loading/dynamic_obj_registration/dynamic_objects.i)

# This input file contains objects only available in phase_field
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 2
  xmax = 50
  ymax = 25
  elem_type = QUAD4
  uniform_refine = 2
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c_IC]
    type = BoundingBoxIC
    x1 = 15.0
    x2 = 35.0
    y1 = 0.0
    y2 = 25.0
    inside = 1.0
    outside = -0.8
    variable = c
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
    block = 0
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 15
  nl_max_its = 10
  start_time = 0.0

  num_steps = 2
  dt = 1.0
[]

[Outputs]
  exodus = true
[]

[Problem]
  register_objects_from = 'PhaseFieldApp'
  library_path = '../../../../../phase_field/lib'
[]

(test/tests/time_steppers/time_stepper_system/testRejectStep.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]


[Executioner]
  type = Transient
  num_steps = 10
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  dtmin = 5
  [TimeSteppers]
    [TestStepper]
      type = TestSourceStepper
      dt = 10
    []

    [SolutionTimeAdaptiveDT]
      type = SolutionTimeAdaptiveDT
      dt = 5
    []
  []
[]


[Postprocessors]
  [dt]
    type = TimestepSize
  []
[]

[Outputs]
  csv = true
[]

(python/peacock/tests/common/oversample.i)

###########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of a "Transient" Executioner.
#
# @Requirement F1.10
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./dt]
    type = TimestepSize
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'

  # Preconditioned JFNK (default)
  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_transient
  exodus = true
  [./refine_2]
    type = Exodus
    file_base = oversample_2
    refinements = 2
  [../]
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/main_nearest_sub_app.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 20
  ny = 20
  nz = 20
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./multi_layered_average]
  [../]
  [./element_multi_layered_average]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.001 # This will be constrained by the multiapp

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  l_tol = 1e-8
  nl_rel_tol = 1e-10
[]


[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    positions = '0.3 0.1 0.3 0.7 0.1 0.3'
    type = TransientMultiApp
    input_files = sub.i
    app_type = MooseTestApp
  [../]
[]

[Transfers]
  [./layered_transfer]
    type = MultiAppGeneralFieldUserObjectTransfer
    source_user_object = layered_average
    variable = multi_layered_average
    from_multi_app = sub_app
    # nearest_sub_app = true
  [../]
  [./element_layered_transfer]
    type = MultiAppGeneralFieldUserObjectTransfer
    source_user_object = layered_average
    variable = element_multi_layered_average
    from_multi_app = sub_app
    # nearest_sub_app = true
  [../]
[]

(test/tests/outputs/checkpoint/checkpoint_interval.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 11
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
  [out]
    type = Checkpoint
    time_step_interval = 3
    num_files = 2
    wall_time_interval = 3600 # seconds
  []
[]

(test/tests/controls/error/tid_warehouse_error.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [./func_control]
    type = TestControl
    test_type = 'tid_warehouse_error'
    parameter = 'coef'
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/multiapps/cliargs_from_file/cliargs_sub_2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

 [Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/flood_counter_aux_test/flood_aux_elemental.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  nz = 0

  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./bubble_map]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  active = 'diff forcing_1 forcing_2 forcing_3 forcing_4 dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing_1]
    type = GaussContForcing
    variable = u
    x_center = 1.0
    y_center = 1.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./forcing_2]
    type = GaussContForcing
    variable = u
    x_center = 20.0
    y_center = 39.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./forcing_3]
    type = GaussContForcing
    variable = u
    x_center = 39.0
    y_center = 20.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./forcing_4]
    type = GaussContForcing
    variable = u
    x_center = 15.0
    y_center = 15.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./mapper]
    type = FeatureFloodCountAux
    variable = bubble_map
    execute_on = timestep_end
    flood_counter = bubbles
  [../]
[]

[BCs]
  [./Periodic]
    [./x]
      variable = u
      auto_direction = 'x y'
    [../]
  [../]
[]

[Postprocessors]
  [./bubbles]
    type = FeatureFloodCount
    variable = u
    threshold = 0.3
    execute_on = timestep_end
  [../]
[]

[Executioner]
  active = ''

  type = Transient
  dt = 4.0
  num_steps = 5

#  [./Adaptivity]
#    refine_fraction = .40
#    coarsen_fraction = .02
#    max_h_level = 3
#    error_estimator = KellyErrorEstimator
#  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/misc/solution_invalid/solution_invalid_recover.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  xmax = 1
  ymax = 1
[]

[Variables]
  [u]
  []
[]

# Sets solution invalid using the SolutionInvalidInterface, as diffusivity exceeds the set threshold.
[Materials]
  [filter]
    type = NonsafeMaterial
    diffusivity = 0.5
    threshold = 0.3
    invalid_after_time = 1
  []
[]

[Kernels]
  [du_dt]
    type = TimeDerivative
    variable = u
  []
  [diffusion]
    type = MatDiffusion
    variable = u
    diffusivity = diffusivity
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 1
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Problem]
  type = FEProblem
  allow_invalid_solution = true
  immediately_print_invalid_solution = false
[]

[Executioner]
  type = Transient
  num_steps=3
  error_on_dtmin=false
  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -pc_factor_mat_solver_type'
  petsc_options_value = 'lu superlu_dist'
[]

[Reporters/solution_invalidity]
  type = SolutionInvalidityReporter
[]

[Outputs]
  file_base = 'solution_invalid_recover'
  json = true
[]

(test/tests/restart/restart_transient_from_steady/restart_trans_with_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Problem]
  restart_file_base = steady_with_sub_out_cp/LATEST
[]

[AuxVariables]
  [Tf]
  []
[]

[Variables]
  [power_density]
  []
[]

[Functions]
  [pwr_func]
    type = ParsedFunction
    expression = '1e3*x*(1-x)+5e2' # increase this function to drive transient
  []
[]

[Kernels]
  [timedt]
    type = TimeDerivative
    variable = power_density
  []

  [diff]
    type = Diffusion
    variable = power_density
  []

  [coupledforce]
    type = BodyForce
    variable = power_density
    function = pwr_func
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = power_density
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = power_density
    boundary = right
    value = 1e3
  []
[]

[Postprocessors]
  [pwr_avg]
    type = ElementAverageValue
    block = '0'
    variable = power_density
    execute_on = 'initial timestep_end'
  []
  [temp_avg]
    type = ElementAverageValue
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [temp_max]
    type = ElementExtremeValue
    value_type = max
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [temp_min]
    type = ElementExtremeValue
    value_type = min
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 3
  dt = 1.0

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  nl_abs_tol = 1e-8
  nl_rel_tol = 1e-7

  fixed_point_rel_tol = 1e-7
  fixed_point_abs_tol = 1e-07
  fixed_point_max_its = 4

  line_search = none
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files  = restart_trans_with_sub_sub.i
    execute_on = 'timestep_end'
  [../]
[]

[Transfers]
  [p_to_sub]
    type = MultiAppShapeEvaluationTransfer
    source_variable = power_density
    variable = power_density
    to_multi_app = sub
    execute_on = 'timestep_end'
  []
  [t_from_sub]
    type = MultiAppShapeEvaluationTransfer
    source_variable = temp
    variable = Tf
    from_multi_app = sub
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(test/tests/userobjects/Terminator/terminator_message.i)

###########################################################
# This is a test of the UserObject System. The
# Terminator UserObject executes independently after
# each solve and can terminate the solve early due to
# user-defined criteria. (Type: GeneralUserObject)
#
# @Requirement F6.40
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 30
  ny = 6
  xmin = -15.0
  xmax = 15.0
  ymin = -3.0
  ymax = 3.0
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1
  [../]
[]

[Postprocessors]
  [./time]
    type = TimePostprocessor
  [../]
[]

[UserObjects]
  [./arnold1]
    type = Terminator
    expression = 'time = 1'
    execute_on = TIMESTEP_END
    message = "This is an info"
    fail_mode = SOFT
    error_level = INFO
  [../]
  [./arnold2]
    type = Terminator
    expression = 'time = 0.5'
    execute_on = TIMESTEP_END
    message = "This is a warning!"
    fail_mode = SOFT
    error_level = WARNING
  [../]
  [./arnold3]
    type = Terminator
    expression = 'time = 0.25'
    execute_on = TIMESTEP_END
    message = "This is an error!"
    error_level = ERROR
  [../]
[]

[Kernels]
  [./cres]
    type = Diffusion
    variable = c
  [../]

  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[BCs]
  [./c]
    type = DirichletBC
    variable = c
    boundary = left
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 6
  nl_abs_step_tol = 1e-10
[]

[Outputs]
  csv = true
  print_linear_residuals = false
[]

(test/tests/outputs/checkpoint/checkpoint_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[MultiApps]
  [sub_app]
    type = FullSolveMultiApp
    input_files = "checkpoint_child.i"
    positions = '0 0 0'
  []
[]

[Executioner]
  type = Transient
  num_steps = 11
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  checkpoint=true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/06_sub_twoapps.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 40
  ny = 40
  nz = 40
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test1.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 4
    ny = 4
    xmin = 0
    xmax = 4
    ymin = 0
    ymax = 4
  []

  [SubdomainBoundingBox]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '3 3 3'
  []

  [ed0]
    type = BlockDeletionGenerator
    input = SubdomainBoundingBox
    block = 1
  []

[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [top]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 1
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 10
  dt = 10

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/07_sub_sub_multilevel.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 40
  ny = 40
  nz = 40
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/optimization/examples/simpleTransient/forward_mesh.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
    xmin = -1
    xmax = 1
    ymin = -1
    ymax = 1
  []
[]

[Variables]
  [u]
  []
[]

[ICs]
  [initial]
    type = FunctionIC
    variable = u
    function = exact
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [src]
    type = BodyForce
    variable = u
    function = source
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = u
    boundary = 'left right top bottom'
    value = 0
  []
[]

[Functions]
  [exact]
    type = ParsedFunction
    value = '2*exp(-2.0*(x - sin(2*pi*t))^2)*exp(-2.0*(y - cos(2*pi*t))^2)*cos((1/2)*x*pi)*cos((1/2)*y*pi)/pi'
  []
  [source]
    type = ParameterMeshFunction
    exodus_mesh = source_mesh_in.e
    time_name = src_values/time
    parameter_name = src_values/values
  []
[]

[Executioner]
  type = Transient

  num_steps = 100
  end_time = 1

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Reporters]
  [measured_data]
    type = OptimizationData
    measurement_file = mms_data.csv
    file_xcoord = x
    file_ycoord = y
    file_zcoord = z
    file_time = t
    file_value = u
    variable = u
    objective_name = objective_value
    execute_on = timestep_end
    outputs = csv
  []
  [src_values]
    type = ConstantReporter
    real_vector_names = 'time values'
    real_vector_values = '0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0;
                          0' # dummy
  []
[]

[AuxVariables/source]
[]

[AuxKernels]
  [source_aux]
    type = FunctionAux
    variable = source
    function = source
  []
[]

[Outputs]
  console = false
  exodus = true
[]

(test/tests/functions/piecewise_multilinear/except5.i)

# PiecewiseMultilinear function exception test
# No valid AXIS lines in the data_file

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 1
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./f]
  [../]
[]

[AuxKernels]
  [./f_auxK]
    type = FunctionAux
    variable = f
    function = except5_fcn
  [../]
[]


[Functions]
  [./except5_fcn]
    type = PiecewiseMultilinear
    data_file = except5.txt
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  hide = dummy
[]

(test/tests/outputs/residual/output_residual_test.i)

[Mesh]
  file = sq-2blk.e
  uniform_refine = 3
[]

[Variables]
  # variable in the whole domain
  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]

  # subdomain restricted variable
  [./v]
    order = FIRST
    family = LAGRANGE
    block = '1'
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]

  [./exact_fn_v]
    type = ParsedFunction
    expression = t+1
  [../]
[]

[Kernels]
  [./ie_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]


  [./ie_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]

[]

[BCs]
  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '1 2 3 4'
    function = exact_fn
  [../]

  [./bottom_v]
    type = DirichletBC
    variable = v
    boundary = 5
    value = 0
  [../]

  [./top_v]
    type = FunctionDirichletBC
    variable = v
    boundary = 6
    function = exact_fn_v
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out
  exodus = true
[]

[Debug]
  show_var_residual = 'u v'
  show_var_residual_norms = true
[]

(test/tests/time_steppers/time_stepper_system/timestepper_input_error.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient   # Here we use the Transient Executioner
  [TimeSteppers]
      type = TimeSequenceStepper
      time_sequence  = '0 43200 86400 172800 432000 864000'
  []
  start_time = 0.0
  end_time = 864000
[]

[Postprocessors]
  [timestep]
    type = TimePostprocessor
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  csv = true
  file_base='multiple_timesequence'
[]

(modules/combined/test/tests/multiphase_mechanics/gradientcomponent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./v]
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 0.5
      y1 = 0.5
      radius = 0.2
      invalue = 1
      outvalue = 0
      int_width = 0.2
    [../]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = v
  [../]
  [./dt]
    type = TimeDerivative
    variable = v
  [../]
  [./gradientcomponent]
    type = GradientComponent
    variable = u
    v = v
    component = 0
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 2
  solve_type = 'NEWTON'
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/time_steppers/time_stepper_system/lower_bound.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 0.8
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  [TimeSteppers]
    lower_bound = 'LogConstDT'
    [ConstDT1]
      type = ConstantDT
      dt = 0.2
    []

    [ConstDT2]
      type = ConstantDT
      dt = 0.1
    []

    [LogConstDT]
      type = LogConstantDT
      log_dt = 2
      first_dt = 0.01
    []
  []
[]

[Postprocessors]
  [timestep]
    type = TimePostprocessor
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  csv = true
  file_base='lower_bound'
[]

(test/tests/meshgenerators/distributed_rectilinear/dmg_displaced_mesh/pbc_adaptivity.i)

[Mesh]
  [dmg]
    type = DistributedRectilinearMeshGenerator
    dim = 2
    nx = 40
    ny = 40
    xmax = 40
    ymax = 40
  []
[]

[GlobalParams]
  displacements = 'disp_x disp_y'
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_x]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_y]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./pid]
    order = CONSTANT
    family = monomial
  []
[]

[AuxKernels]
  [./pidaux]
    type = ProcessorIDAux
    variable = pid
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = GaussContForcing
    variable = u
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_x]
    type = Diffusion
    variable = disp_x
  [../]

  [./diff_y]
    type = Diffusion
    variable = disp_y
  [../]

[]

[BCs]
  [./Periodic]
    [./x]
      variable = u
      primary = 'left'
      secondary = 'right'
      translation = '40 0 0'
    [../]

    [./y]
      variable = u
      primary = 'bottom'
      secondary = 'top'
      translation = '0 40 0'
    [../]
  [../]

  [./left_x]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = -0.01
  [../]

  [./right_x]
    type = DirichletBC
    variable = disp_x
    boundary = right
    value = 0.01
  [../]

  [./left_y]
    type = DirichletBC
    variable = disp_y
    boundary = left
    value = -0.01
  [../]

  [./right_y]
    type = DirichletBC
    variable = disp_y
    boundary = right
    value = 0.01
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 5
  solve_type = NEWTON
[]

[Outputs]
  exodus = true
[]

[Adaptivity]
  initial_steps = 2
  steps = 1
  marker = marker
  initial_marker = marker
  max_h_level = 2
  [./Indicators]
    [./indicator]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./marker]
      type = ErrorFractionMarker
      indicator = indicator
      coarsen = 0.1
      refine = 0.7
    [../]
  [../]
[]

(test/tests/time_integrators/actually_explicit_euler_verification/ee-2d-linear-adapt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = (x+y)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*(x+y)
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    preset = false
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Adaptivity]
  steps = 1
  marker = box
  max_h_level = 2
  [./Markers]
    [./box]
      bottom_left = '-0.4 -0.4 0'
      inside = refine
      top_right = '0.4 0.4 0'
      outside = do_nothing
      type = BoxMarker
    [../]
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  start_time = 0.0
  num_steps = 4
  dt = 0.005
  l_tol = 1e-12

  [./TimeIntegrator]
    type = ActuallyExplicitEuler
  [../]
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(modules/phase_field/examples/interfacekernels/interface_gradient.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 50
    ny = 50
  []
  [./box1]
    input = gen
    type = SubdomainBoundingBoxGenerator
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '0.51 1 0'
  [../]
  [./box2]
    input = box1
    type = SubdomainBoundingBoxGenerator
    block_id = 2
    bottom_left = '0.49 0 0'
    top_right = '1 1 0'
  [../]
  [./iface]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = 1
    paired_block = 2
    new_boundary = 10
    input = box2
  [../]
  [./rotate]
    type = TransformGenerator
    transform = ROTATE
    vector_value = '5 0 0'
    input = iface
  [../]
[]

[GlobalParams]
  order = FIRST
  family = LAGRANGE
[]

[Variables]
  [./u]
    block = 1
    [./InitialCondition]
      type = FunctionIC
      function = 'r:=sqrt((x-0.4)^2+(y-0.5)^2);if(r<0.05,5,1)'
    [../]
  [../]
  [./v]
    block = 2
    initial_condition = 0.8
  [../]
[]

[Kernels]
  [./u_diff]
    type = Diffusion
    variable = u
    block = 1
  [../]
  [./u_dt]
    type = TimeDerivative
    variable = u
    block = 1
  [../]
  [./v_diff]
    type = Diffusion
    variable = v
    block = 2
  [../]
  [./v_dt]
    type = TimeDerivative
    variable = v
    block = 2
  [../]
[]

[InterfaceKernels]
  [./flux_continuity]
    type = InterfaceDiffusionFluxMatch
    variable = u
    boundary = 10
    neighbor_var = v
  [../]
  [./diffusion_surface_term]
    type = InterfaceDiffusionBoundaryTerm
    boundary = 10
    variable = u
    neighbor_var = v
  [../]
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
  petsc_options_value = 'lu       superlu_dist'

  dt = 0.001
  num_steps = 20
[]

[Outputs]
  [./out]
    type = Exodus
    use_problem_dimension = false
  [../]
  print_linear_residuals = false
[]

(modules/combined/test/tests/feature_volume_fraction/Avrami.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 40
  ny = 40
  nz = 0

  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 20
      y1 = 20
      radius = 10
      int_width = 1
      invalue = 1
      outvalue = 0
    [../]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[VectorPostprocessors]
  [./feature_volumes]
    type = FeatureVolumeVectorPostprocessor
    flood_counter = feature_counter
    execute_on = 'initial timestep_end'
    outputs = none
  [../]
[]

[Postprocessors]
  [./feature_counter]
    type = FeatureFloodCount
    variable = u
    compute_var_to_feature_map = true
    execute_on = 'initial timestep_end'
  [../]
  [./Volume]
    type = VolumePostprocessor
    execute_on = 'initial'
  [../]
  [./Avrami]
    type = FeatureVolumeFraction
    execute_on = 'initial timestep_end'
    mesh_volume = Volume
    feature_volumes = feature_volumes
    equil_fraction = 0.5
    value_type = AVRAMI
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 2
[]

[Outputs]
  csv = true
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test13.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 4
    ny = 4
    xmin = 0
    xmax = 4
    ymin = 0
    ymax = 4
  []

  [SubdomainBoundingBox]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '3 3 3'
  []

  [rename]
    type = RenameBlockGenerator
    input = SubdomainBoundingBox
    old_block = 1
    new_block = 'my_name'
  []

  [ed0]
    type = BlockDeletionGenerator
    input = rename
    block = 'my_name'
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [top]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 1
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 10
  dt = 10

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/MultiSmoothCircleIC/latticesmoothcircleIC_test.i)

[Mesh]

  type = GeneratedMesh
  dim = 3
  nx = 22
  ny = 22
  nz = 22
  xmin = 0
  xmax = 100
  ymin = 0
  ymax = 100
  zmin = 0
  zmax = 100
  elem_type = HEX8

[]

[Variables]

  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./c]
     type = LatticeSmoothCircleIC
     variable = c
     invalue = 1.0
     outvalue = 0.0001
     circles_per_side = '3 3 3'
     pos_variation = 0.0
     radius = 10.0
     int_width = 12.0
     radius_variation = 0.2
     radius_variation_type = uniform
  [../]
[]

[Kernels]
active = 'ie_c diff'

  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]

  [./diff]
    type = MatDiffusion
    variable = c
    diffusivity = D_v
  [../]
[]

[BCs]

[]

[Materials]
active = 'Dv'

  [./Dv]
    type = GenericConstantMaterial
    prop_names = D_v
    prop_values = 0.074802
  [../]
[]

[Postprocessors]
  active = 'bubbles'

  [./bubbles]
    type = FeatureFloodCount
    variable = c
    execute_on = 'initial timestep_end'
    flood_entity_type = NODAL
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  #Preconditioned JFNK (default)
  solve_type = 'PJFNK'




  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart -mat_mffd_type'
  petsc_options_value = 'hypre boomeramg 101 ds'

  l_max_its = 20
  l_tol = 1e-4

  nl_max_its = 20
  nl_rel_tol = 1e-9
  nl_abs_tol = 1e-11

  start_time = 0.0
  num_steps =1
  dt = 100.0
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/initial_conditions/SmoothCircleIC.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 25
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c]
    type = SmoothCircleIC
    variable = c
    x1 = 25.0
    y1 = 25.0
    radius = 6.0
    invalue = 1.0
    outvalue = -0.8
    int_width = 4.0
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'
  solve_type = 'NEWTON'

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-4
  nl_max_its = 40
  nl_rel_tol = 1e-9

  start_time = 0.0
  num_steps = 1
  dt = 2.0
[]

[Outputs]
  exodus = false
  [./out]
    type = Exodus
    refinements = 2
  [../]
[]

(test/tests/materials/parsed/parsed_material_with_functors.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmax = 10
  ymax = 10
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [phi]
  []
[]

[ICs]
  [phi_IC]
    type = FunctionIC
    variable = phi
    function = ic_func_phi
  []
[]

[Functions]
  [ic_func_phi]
    type = ParsedFunction
    expression = '0.5 * (1 - tanh((x - 5) / 0.8))'
  []
  [test_func]
    type = ParsedFunction
    expression = '1 + sin(y)'
  []
[]

[BCs]
  [top]
    type = MatNeumannBC
    variable = u
    boundary = top
    value = 2
    boundary_material = hm
  []
[]

[Kernels]
  [dudt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[Materials]
  [hm]
    type = ParsedMaterial
    property_name = hm
    coupled_variables = 'phi'
    functor_names = 'test_func'
    functor_symbols = 'tf'
    expression = '3*phi^2 - 2*phi^3 + tf'
    outputs = exodus
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  end_time = 10
[]

[Outputs]
  exodus = true
[]

(test/tests/functions/solution_function/solution_function_scale_transl.i)

# checking scale and translation, with ordering scale first, then translation second
[Mesh]
  type = GeneratedMesh
  dim = 3
  xmin = -1
  xmax = 1
  nx = 3
  ymin = -1
  ymax = 1
  ny = 3
  zmin = -1
  zmax = 1
  nz = 3
[]

[UserObjects]
  [./solution_uo]
    type = SolutionUserObject
    mesh = cube_with_u_equals_x.e
    timestep = 1
    system_variables = u
    scale = '0.5 1 1'
    translation = '2 0 0'
    transformation_order = 'scale translation'
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./u_init]
    type = FunctionIC
    variable = u
    function = solution_fcn
  [../]
[]

[Functions]
  [./solution_fcn]
    type = SolutionFunction
    from_variable = u
    solution = solution_uo
  [../]
[]

[Kernels]
  [./diff]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'NEWTON'

  l_max_its = 800
  nl_rel_tol = 1e-10
  num_steps = 1
  end_time = 1
  dt = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = solution_function_scale_transl
  exodus = true
[]

(test/tests/time_integrators/implicit-euler/ie_adapt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 4
  ny = 4
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.25

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/restart/kernel_restartable/kernel_restartable_second.i)

###########################################################
# This test exercises the restart system and verifies
# correctness with parallel computation, but distributed
# and with threading.
#
# See kernel_restartable.i
#
# @Requirement F1.60
# @Requirement P1.10
# @Requirement P1.20
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = RestartDiffusion
    variable = u
    coef = 1
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 1e-2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Problem]
  restart_file_base = kernel_restartable_restart_cp/LATEST
[]

(test/tests/multiapps/check_error/sub_unused.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  foo = bar
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(modules/combined/examples/phase_field-mechanics/kks_mechanics_VTS.i)

# KKS phase-field model coupled with elasticity using the Voigt-Taylor scheme as
# described in L.K. Aagesen et al., Computational Materials Science, 140, 10-21 (2017)
# Original run #170329e

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 640
  ny = 1
  nz = 1
  xmin = -10
  xmax = 10
  ymin = 0
  ymax = 0.03125
  zmin = 0
  zmax = 0.03125
  elem_type = HEX8
[]


[Variables]
  # order parameter
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]

  # solute concentration
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]

  # chemical potential
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]

  # solute phase concentration (matrix)
  [./cm]
    order = FIRST
    family = LAGRANGE
  [../]
  # solute phase concentration (precipitate)
  [./cp]
    order = FIRST
    family = LAGRANGE
  [../]
  [./disp_x]
    order = FIRST
    family = LAGRANGE
  [../]
  [./disp_y]
    order = FIRST
    family = LAGRANGE
  [../]
  [./disp_z]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./eta_ic]
    variable = eta
    type = FunctionIC
    function = ic_func_eta
    block = 0
  [../]
  [./c_ic]
    variable = c
    type = FunctionIC
    function = ic_func_c
    block = 0
  [../]
  [./w_ic]
    variable = w
    type = ConstantIC
    value = 0.00991
    block = 0
  [../]
  [./cm_ic]
    variable = cm
    type = ConstantIC
    value = 0.131
    block = 0
  [../]
  [./cp_ic]
    variable = cp
    type = ConstantIC
    value = 0.236
    block = 0
  [../]
[]

[Functions]
  [./ic_func_eta]
    type = ParsedFunction
    expression = '0.5*(1.0+tanh((x)/delta_eta/sqrt(2.0)))'
    symbol_names = 'delta_eta'
    symbol_values = '0.8034'
  [../]
  [./ic_func_c]
    type = ParsedFunction
    expression = '0.2388*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^3*(6*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^2-15*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))+10)+0.1338*(1-(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^3*(6*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))^2-15*(0.5*(1.0+tanh(x/delta/sqrt(2.0))))+10))'
    symbol_names = 'delta'
    symbol_values = '0.8034'
  [../]
  [./psi_eq_int]
    type = ParsedFunction
    expression = 'volume*psi_alpha'
    symbol_names = 'volume psi_alpha'
    symbol_values = 'volume psi_alpha'
  [../]
  [./gamma]
    type = ParsedFunction
    expression = '(psi_int - psi_eq_int) / dy / dz'
    symbol_names = 'psi_int psi_eq_int dy       dz'
    symbol_values = 'psi_int psi_eq_int 0.03125  0.03125'
  [../]
[]

[AuxVariables]
  [./sigma11]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./sigma22]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./sigma33]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./e11]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./e12]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./e22]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./e33]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./e_el11]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./e_el12]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./e_el22]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./f_el]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./eigen_strain00]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./Fglobal]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./psi]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./matl_sigma11]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 0
    index_j = 0
    variable = sigma11
  [../]
  [./matl_sigma22]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 1
    index_j = 1
    variable = sigma22
  [../]
  [./matl_sigma33]
    type = RankTwoAux
    rank_two_tensor = stress
    index_i = 2
    index_j = 2
    variable = sigma33
  [../]
  [./matl_e11]
    type = RankTwoAux
    rank_two_tensor = total_strain
    index_i = 0
    index_j = 0
    variable = e11
  [../]
  [./matl_e12]
    type = RankTwoAux
    rank_two_tensor = total_strain
    index_i = 0
    index_j = 1
    variable = e12
  [../]
  [./matl_e22]
    type = RankTwoAux
    rank_two_tensor = total_strain
    index_i = 1
    index_j = 1
    variable = e22
  [../]
  [./matl_e33]
    type = RankTwoAux
    rank_two_tensor = total_strain
    index_i = 2
    index_j = 2
    variable = e33
  [../]
  [./f_el]
    type = MaterialRealAux
    variable = f_el
    property = f_el_mat
    execute_on = timestep_end
  [../]
  [./GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fm
    fb_name = fp
    w = 0.0264
    kappa_names = kappa
    interfacial_vars = eta
  [../]
  [./psi_potential]
    variable = psi
    type = ParsedAux
    coupled_variables = 'Fglobal w c f_el sigma11 e11'
    expression = 'Fglobal - w*c + f_el - sigma11*e11'
  [../]
[]


[BCs]
  [./left_x]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0
  [../]
  [./right_x]
    type = DirichletBC
    variable = disp_x
    boundary = right
    value = 0
  [../]
  [./front_y]
    type = DirichletBC
    variable = disp_y
    boundary = front
    value = 0
  [../]
  [./back_y]
    type = DirichletBC
    variable = disp_y
    boundary = back
    value = 0
  [../]
  [./top_z]
    type = DirichletBC
    variable = disp_z
    boundary = top
    value = 0
  [../]
  [./bottom_z]
    type = DirichletBC
    variable = disp_z
    boundary = bottom
    value = 0
  [../]
[]

[Materials]
  # Chemical free energy of the matrix
  [./fm]
    type = DerivativeParsedMaterial
    property_name = fm
    coupled_variables = 'cm'
    expression = '6.55*(cm-0.13)^2'
  [../]
# Elastic energy of the matrix
  [./elastic_free_energy_m]
    type = ElasticEnergyMaterial
    base_name = matrix
    f_name = fe_m
    args = ' '
    outputs = exodus
  [../]
# Total free energy of the matrix
  [./Total_energy_matrix]
    type = DerivativeSumMaterial
    property_name = f_total_matrix
    sum_materials = 'fm fe_m'
    coupled_variables = 'cm'
  [../]

  # Free energy of the precipitate phase
  [./fp]
    type = DerivativeParsedMaterial
    property_name = fp
    coupled_variables = 'cp'
    expression = '6.55*(cp-0.235)^2'
  [../]

# Elastic energy of the precipitate
  [./elastic_free_energy_p]
    type = ElasticEnergyMaterial
    base_name = ppt
    f_name = fe_p
    args = ' '
    outputs = exodus
  [../]

# Total free energy of the precipitate
  [./Total_energy_ppt]
    type = DerivativeSumMaterial
    property_name = f_total_ppt
    sum_materials = 'fp fe_p'
    coupled_variables = 'cp'
  [../]

  # Total elastic energy
    [./Total_elastic_energy]
      type = DerivativeTwoPhaseMaterial
      eta = eta
      f_name = f_el_mat
      fa_name = fe_m
      fb_name = fe_p
      outputs = exodus
      W = 0
    [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   kappa     misfit'
    prop_values = '0.7 0.7 0.01704   0.00377'
  [../]

  #Mechanical properties
  [./Stiffness_matrix]
    type = ComputeElasticityTensor
    C_ijkl = '103.3 74.25 74.25 103.3 74.25 103.3 46.75 46.75 46.75'
    base_name = matrix
    fill_method = symmetric9
  [../]
  [./Stiffness_ppt]
    type = ComputeElasticityTensor
    C_ijkl = '100.7 71.45 71.45 100.7 71.45 100.7 50.10 50.10 50.10'
    base_name = ppt
    fill_method = symmetric9
  [../]
  [./stress_matrix]
    type = ComputeLinearElasticStress
    base_name = matrix
  [../]
  [./stress_ppt]
    type = ComputeLinearElasticStress
    base_name = ppt
  [../]
  [./strain_matrix]
    type = ComputeSmallStrain
    displacements = 'disp_x disp_y disp_z'
    base_name = matrix
  [../]
  [./strain_ppt]
    type = ComputeSmallStrain
    displacements = 'disp_x disp_y disp_z'
    base_name = ppt
    eigenstrain_names = 'eigenstrain_ppt'
  [../]
  [./eigen_strain]
    type = ComputeEigenstrain
    base_name = ppt
    eigen_base = '1 1 1 0 0 0'
    prefactor = misfit
    eigenstrain_name = 'eigenstrain_ppt'
  [../]
  [./global_stress]
    type = TwoPhaseStressMaterial
    base_A = matrix
    base_B = ppt
  [../]
  [./global_strain]
    type = ComputeSmallStrain
    displacements = 'disp_x disp_y disp_z'
  [../]
[]

[Kernels]
  [./TensorMechanics]
    displacements = 'disp_x disp_y disp_z'
  [../]

  # enforce c = (1-h(eta))*cm + h(eta)*cp
  [./PhaseConc]
    type = KKSPhaseConcentration
    ca       = cm
    variable = cp
    c        = c
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotVacancies]
    type = KKSPhaseChemicalPotential
    variable = cm
    cb       = cp
    fa_name  = f_total_matrix
    fb_name  = f_total_ppt
  [../]

  #
  # Cahn-Hilliard Equation
  #
  [./CHBulk]
    type = KKSSplitCHCRes
    variable = c
    ca       = cm
    fa_name  = f_total_matrix
    w        = w
  [../]

  [./dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  [../]

  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = f_total_matrix
    fb_name  = f_total_ppt
    w        = 0.0264
    args = 'cp cm'
  [../]
  [./ACBulkC]
    type = KKSACBulkC
    variable = eta
    ca       = cm
    cb       = cp
    fa_name  = f_total_matrix
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -sub_pc_type   -sub_pc_factor_shift_type'
  petsc_options_value = 'asm       ilu            nonzero'

  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1.0e-11
  num_steps = 200

  [./TimeStepper]
    type = SolutionTimeAdaptiveDT
    dt = 0.5
  [../]
[]

[VectorPostprocessors]
  #[./eta]
  #  type =  LineValueSampler
  #  start_point = '-10 0 0'
  #  end_point = '10 0 0'
  #  variable = eta
  #  num_points = 321
  #  sort_by =  id
  #[../]
  #[./eta_position]
  #  type = FindValueOnLineSample
  #  vectorpostprocessor = eta
  #  variable_name = eta
  #  search_value = 0.5
  #[../]
#  [./f_el]
#    type =  LineMaterialRealSampler
#    start = '-20 0 0'
#    end   = '20 0 0'
#    sort_by = id
#    property = f_el
#  [../]
#  [./f_el_a]
#    type =  LineMaterialRealSampler
#    start = '-20 0 0'
#    end   = '20 0 0'
#    sort_by = id
#    property = fe_m
#  [../]
#  [./f_el_b]
#    type =  LineMaterialRealSampler
#    start = '-20 0 0'
#    end   = '20 0 0'
#    sort_by = id
#    property = fe_p
#  [../]
#  [./h_out]
#    type =  LineMaterialRealSampler
#    start = '-20 0 0'
#    end   = '20 0 0'
#    sort_by = id
#    property = h
#  [../]
#  [./fm_out]
#    type =  LineMaterialRealSampler
#    start = '-20 0 0'
#    end   = '20 0 0'
#    sort_by = id
#    property = fm
#  [../]
[]

[Postprocessors]
  [./f_el_int]
    type = ElementIntegralMaterialProperty
    mat_prop = f_el_mat
  [../]
  [./c_alpha]
    type =  SideAverageValue
    boundary = left
    variable = c
  [../]
  [./c_beta]
    type =  SideAverageValue
    boundary = right
    variable = c
  [../]
  [./e11_alpha]
    type =  SideAverageValue
    boundary = left
    variable = e11
  [../]
  [./e11_beta]
    type =  SideAverageValue
    boundary = right
    variable = e11
  [../]
  [./s11_alpha]
    type =  SideAverageValue
    boundary = left
    variable = sigma11
  [../]
  [./s22_alpha]
    type =  SideAverageValue
    boundary = left
    variable = sigma22
  [../]
  [./s33_alpha]
    type =  SideAverageValue
    boundary = left
    variable = sigma33
  [../]
  [./s11_beta]
    type =  SideAverageValue
    boundary = right
    variable = sigma11
  [../]
  [./s22_beta]
    type =  SideAverageValue
    boundary = right
    variable = sigma22
  [../]
  [./s33_beta]
    type =  SideAverageValue
    boundary = right
    variable = sigma33
  [../]
  [./f_el_alpha]
    type =  SideAverageValue
    boundary = left
    variable = f_el
  [../]
  [./f_el_beta]
    type =  SideAverageValue
    boundary = right
    variable = f_el
  [../]
  [./f_c_alpha]
    type =  SideAverageValue
    boundary = left
    variable = Fglobal
  [../]
  [./f_c_beta]
    type =  SideAverageValue
    boundary = right
    variable = Fglobal
  [../]
  [./chem_pot_alpha]
    type =  SideAverageValue
    boundary = left
    variable = w
  [../]
  [./chem_pot_beta]
    type =  SideAverageValue
    boundary = right
    variable = w
  [../]
  [./psi_alpha]
    type =  SideAverageValue
    boundary = left
    variable = psi
  [../]
  [./psi_beta]
    type =  SideAverageValue
    boundary = right
    variable = psi
  [../]
  [./total_energy]
    type = ElementIntegralVariablePostprocessor
    variable = Fglobal
  [../]
  # Get simulation cell size from postprocessor
  [./volume]
    type = ElementIntegralMaterialProperty
    mat_prop = 1
  [../]
  [./psi_eq_int]
    type = FunctionValuePostprocessor
    function = psi_eq_int
  [../]
  [./psi_int]
    type = ElementIntegralVariablePostprocessor
    variable = psi
  [../]
  [./gamma]
    type = FunctionValuePostprocessor
    function = gamma
  [../]
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]


[Outputs]
  [./exodus]
    type = Exodus
    time_step_interval = 20
  [../]
  [./csv]
    type = CSV
    execute_on = 'final'
  [../]
#[./console]
#    type = Console
#    output_file = true
#  [../]
[]

(test/tests/problems/reference_residual_problem/no_ref.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Problem]
  type = ReferenceResidualProblem
  # reference_vector = 'absref'
  # extra_tag_vectors = 'absref'
[]

[Variables]
  [u][]
  [v]
    scaling = 1e-6
  []
[]

[Functions]
  [ramp]
    type = ParsedFunction
    expression = 'if(t < 5, t - 5, 0) * x'
  []
[]

[Kernels]
  [u_dt]
    type = TimeDerivative
    variable = u
  []
  [u_coupled_rx]
    type = CoupledForce
    variable = u
    v = v
    coef = 1
  []

  [v_dt]
    type = TimeDerivative
    variable = v
  []
  [v_neg_force]
    type = BodyForce
    variable = v
    value = ${fparse -1 / 2}
    function = ramp
  []
  [v_force]
    type = BodyForce
    variable = v
    value = 1
    function = ramp
  []
[]

[Postprocessors]
  [u_avg]
    type = ElementAverageValue
    variable = u
    execute_on = 'TIMESTEP_END INITIAL'
  []
  [v_avg]
    type = ElementAverageValue
    variable = v
    execute_on = 'TIMESTEP_END INITIAL'
  []
  [timestep]
    type = TimePostprocessor
    outputs = 'none'
  []
  [v_old]
    type = ElementAverageValue
    variable = v
    execute_on = TIMESTEP_BEGIN
    outputs = none
  []
  [u_old]
    type = ElementAverageValue
    variable = u
    execute_on = TIMESTEP_BEGIN
    outputs = none
  []
  [v_exact]
    type = ParsedPostprocessor
    pp_names = 'timestep v_old'
    expression = 't := if(timestep > 5, 5, timestep); (t^2 - 9 * t) / 8'
  []
  [u_exact]
    type = ParsedPostprocessor
    pp_names = 'u_old v_exact'
    expression = 'u_old + v_exact'
  []
[]


[Executioner]
  type = Transient
  petsc_options = '-snes_converged_reason'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
  line_search = none
  num_steps = 10
  nl_rel_tol = 1e-06
  verbose = true
[]

[Outputs]
  csv = true
  perf_graph = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/02_parent_sublimit.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1.

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = '02_sub_sublimit.i'
  []
[]

(test/tests/materials/output/output_via_outputs.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  xmax = 10
  ymax = 10
  uniform_refine = 1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 10
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Materials]
  [./test_material]
    type = OutputTestMaterial
    block = 0
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [./out]
    type = Exodus
    output_material_properties = true
  [../]
[]

(modules/phase_field/test/tests/Nucleation/marker.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  nz = 0
  xmin = 0
  xmax = 20
  ymin = 0
  ymax = 20
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    boundary = left
    variable = c
    value = 0
  [../]
  [./right]
    type = DirichletBC
    boundary = right
    variable = c
    value = 1
  [../]
  [./Periodic]
    [./all]
      auto_direction = y
    [../]
  [../]
[]

[Kernels]
  [./c]
    type = Diffusion
    variable = c
  [../]
  [./dt]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./nucleation]
    type = DiscreteNucleation
    op_names  = c
    op_values = 1
    map = map
    outputs = exodus
  [../]
[]

[UserObjects]
  [./inserter]
    type = DiscreteNucleationInserter
    hold_time = 1
    probability = 0.01
    radius = 3.27
  [../]
  [./map]
    type = DiscreteNucleationMap
    periodic = c
    inserter = inserter
  [../]
[]

[Adaptivity]
  [./Markers]
    [./nuc]
      type = DiscreteNucleationMarker
      map = map
    [../]
  [../]
  marker = nuc
  cycles_per_step = 3
  recompute_markers_during_cycles = true
  max_h_level = 3
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
  hide = c
[]

(test/tests/functions/default_function/default_function.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = FuncCoefDiffusion
    variable = u
    # No default function supplied
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = NeumannBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/markers/two_circle_marker/two_circle_marker_coarsen.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.02
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = u
      auto_direction = 'x y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 6
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  initial_steps = 1
  initial_marker = two_circle_marker
  cycles_per_step = 1
  marker = two_circle_marker
  max_h_level = 1
  [./Markers]
    [./two_circle_marker]
      type = TwoCircleMarker
      point1 = '0.5 0.5 0'
      radius1 = 0.3
      point2 = '0.35 0.25 0'
      radius2 = 0.3
      shut_off_time = 0.15
      inside = refine
      outside = coarsen
    [../]
  [../]
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    print_mesh_changed_info = true
  [../]
[]

(test/tests/dirackernels/function_dirac_source/function_dirac_source.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 5
  ny = 5
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[DiracKernels]
  [./point_source]
    type = FunctionDiracSource
    variable = u
    function = switch_off
    point = '0.1 0.2 0.0'
  [../]
[]

[Functions]
  [./switch_off]
    type = ParsedFunction
    expression = 'if(t < 1.0001, 1, 0)'
  [../]
[]

[BCs]
  [./external]
    type = NeumannBC
    variable = u
    boundary = '0 1 2 3'
    value = 0
  [../]
[]

[Postprocessors]
  [./total_internal_energy]
    type = ElementIntegralVariablePostprocessor
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 1
  l_tol = 1e-03
[]

[Outputs]
  exodus = true
[]

(modules/heat_transfer/test/tests/directional_flux_bc/2d.i)

[Mesh]
  [planet]
    type = ConcentricCircleMeshGenerator
    has_outer_square = false
    radii = 1
    num_sectors = 10
    rings = 2
    preserve_volumes = false
  []

  [moon]
    type = ConcentricCircleMeshGenerator
    has_outer_square = false
    radii = 0.5
    num_sectors = 8
    rings = 2
    preserve_volumes = false
  []
  [combine]
    type = CombinerGenerator
    inputs = 'planet moon'
    positions = '0 0 0 -1.5 -0.5 0'
  []
[]

[GlobalParams]
  illumination_flux = '1 1 0'
[]

[Variables]
  [u]
  []
  [v]
  []
[]

[Kernels]
  [diff_u]
    type = Diffusion
    variable = u
  []
  [dt_u]
    type = TimeDerivative
    variable = u
  []

  [diff_v]
    type = Diffusion
    variable = v
  []
  [dt_v]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [flux_u]
    type = DirectionalFluxBC
    variable = u
    boundary = outer
  []

  [flux_v]
    type = DirectionalFluxBC
    variable = v
    boundary = outer
    self_shadow_uo = shadow
  []
[]

[Postprocessors]
  [ave_v_all]
    type = SideAverageValue
    variable = v
    boundary = outer
  []
  [ave_v_exposed]
    type = ExposedSideAverageValue
    variable = v
    boundary = outer
    self_shadow_uo = shadow
  []
[]

[UserObjects]
  [shadow]
    type = SelfShadowSideUserObject
    boundary = outer
    execute_on = INITIAL
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 2
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/max_procs_per_app/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '0 0 0'
    input_files = sub.i
    max_procs_per_app = 1
  [../]
[]

(modules/functional_expansion_tools/test/tests/errors/multiapp_bad_user_object.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '3'
    physical_bounds = '0.0  10.0'
    x = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
  [./AnotheruserObject]
    type = EmptyPostprocessor
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = multiapp_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = AnotheruserObject
    multi_app_object_name = FX_Basis_Value_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(test/tests/executioners/time_period/time_period_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Functions]
  [./exact_p1]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]
  [./ffn_p1]
    type = ParsedFunction
    expression = (x*x+y*y)-4*t
  [../]

  [./exact_p2]
    type = ParsedFunction
    expression = t*((x*x*x)+(y*y*y))
  [../]
  [./ffn_p2]
    type = ParsedFunction
    expression = (x*x*x+y*y*y)-6*t*(x+y)
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn1]
    type = BodyForce
    variable = u
    function = ffn_p1
  [../]

  [./ffn2]
    type = BodyForce
    variable = u
    function = ffn_p2
  [../]
[]

[BCs]
  [./all1]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_p1
  [../]
  [./all2]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_p2
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0
  dt = 0.1
  num_steps = 10
[]

[Controls]
  [./first_period]
    type = TimePeriod
    start_time = 0.0
    end_time = 0.45
    enable_objects = '*/ffn1 */all1'
    disable_objects = '*/ffn2 */all2'
    execute_on = 'initial timestep_begin'
    set_sync_times = true
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/cliargs_from_file/cliargs_parent_inline.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1 # This will be constrained by the multiapp

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    positions = '0 0 0  0.5 0.5 0
                 0.6 0.6 0  0.7 0.7 0'
    cli_args_files = cliargs.txt
    type = TransientMultiApp
    input_files = 'cliargs_sub.i'
    app_type = MooseTestApp
  [../]
[]

(test/tests/kernels/ode/parsedode_sys_impl_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 2
  ny = 2
  elem_type = QUAD4
[]

[Functions]
  [./f_fn]
    type = ParsedFunction
    expression = -4
  [../]
  [./bc_all_fn]
    type = ParsedFunction
    expression = x*x+y*y
  [../]

  # ODEs
  [./exact_x_fn]
    type = ParsedFunction
    expression = (-1/3)*exp(-t)+(4/3)*exp(5*t)
  [../]
[]

# NL

[Variables]
  [./u]
    family = LAGRANGE
    order = FIRST
  [../]

  # ODE variables
  [./x]
    family = SCALAR
    order = FIRST
    initial_condition = 1
  [../]
  [./y]
    family = SCALAR
    order = FIRST
    initial_condition = 2
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./uff]
    type = BodyForce
    variable = u
    function = f_fn
  [../]
[]

[ScalarKernels]
  [./td1]
    type = ODETimeDerivative
    variable = x
  [../]
  [./ode1]
    type = ParsedODEKernel
    expression = '-3*x - 2*y'
    variable = x
    coupled_variables = y
  [../]

  [./td2]
    type = ODETimeDerivative
    variable = y
  [../]
  [./ode2]
    type = ParsedODEKernel
    expression = '-4*x - y'
    variable = y
    coupled_variables = x
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = bc_all_fn
  [../]
[]

[Postprocessors]
  active = 'exact_x l2err_x'

  [./exact_x]
    type = FunctionValuePostprocessor
    function = exact_x_fn
    execute_on = 'initial timestep_end'
    point = '0 0 0'
  [../]

  [./l2err_x]
    type = ScalarL2Error
    variable = x
    function = exact_x_fn
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0
  dt = 0.01
  num_steps = 100

  solve_type = 'PJFNK'
[]

[Outputs]
  file_base = ode_sys_impl_test_out
  exodus = true
[]

(modules/porous_flow/test/tests/dirackernels/bh_except01.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 1
    point_file = bh02.bh
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(test/tests/functions/solution_function/solution_function_rot2.i)

# checking rotation of points by 45 deg about y axis in a SolutionUserObject
[Mesh]
  # this is chosen so when i rotate through 45deg i get a length of "1" along the x or y or z direction
  type = GeneratedMesh
  dim = 3
  xmin = -0.70710678
  xmax = 0.70710678
  nx = 3
  ymin = -0.70710678
  ymax = 0.70710678
  ny = 3
  zmin = -0.70710678
  zmax = 0.70710678
  nz = 3
[]

[UserObjects]
  [./solution_uo]
    type = SolutionUserObject
    mesh = cube_with_u_equals_x.e
    timestep = 1
    system_variables = u
    rotation0_vector = '0 1 0'
    rotation0_angle = 45
    transformation_order = rotation0
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./u_init]
    type = FunctionIC
    variable = u
    function = solution_fcn
  [../]
[]

[Functions]
  [./solution_fcn]
    type = SolutionFunction
    from_variable = u
    solution = solution_uo
  [../]
[]

[Kernels]
  [./diff]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'NEWTON'

  l_max_its = 800
  nl_rel_tol = 1e-10
  num_steps = 1
  end_time = 1
  dt = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = solution_function_rot2
  exodus = true
[]

(test/tests/bcs/periodic/auto_dir_repeated_id.i)

[Mesh]
  type = FileMesh
  file = auto_dir_repeated_id.e
  dim = 3
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./dot]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./z_all]
    type = FunctionDirichletBC
    variable = u
    preset = false
    boundary = 'z_all'
    function = 'z'
  [../]

  [./Periodic]
    [./all]
      variable = u
      auto_direction = 'x y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = .1
  num_steps = 1
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/functions/solution_function/solution_function_rot3.i)

# checking rotation of points by 90 deg about z axis, then 45 deg about x axis in a SolutionUserObject
[Mesh]
  # this is chosen so when i rotate through 45deg i get a length of "1" along the x or y or z direction
  type = GeneratedMesh
  dim = 3
  xmin = -0.70710678
  xmax = 0.70710678
  nx = 3
  ymin = -0.70710678
  ymax = 0.70710678
  ny = 3
  zmin = -0.70710678
  zmax = 0.70710678
  nz = 3
[]

[UserObjects]
  [./solution_uo]
    type = SolutionUserObject
    mesh = cube_with_u_equals_x.e
    timestep = 1
    system_variables = u
    # the following takes:
    # (0.7, 0.7, +/-0.7) -> (-0.7, 0.7, +/-0.7)
    # (-0.7, 0.7, +/-0.7) -> (-0.7, -0.7, +/-0.7)
    # (0.7, -0.7, +/-0.7) -> (0.7, 0.7, +/-0.7)
    # (-0.7, -0.7, +/-0.7) -> (0.7, -0.7, +/-0.7)
    rotation0_vector = '0 0 1'
    rotation0_angle = 90
    # then the following takes:
    # (+/-0.7, 0.7, 0.7) -> (+/-0.7, 0, 1)
    # (+/-0.7, 0.7, -0.7) -> (+/-0.7, 1, 0)
    # (+/-0.7, -0.7, 0.7) -> (+/-0.7, -1, 0)
    # (+/-0.7, -0.7, -0.7) -> (+/-0.7, 0, -1)
    rotation1_vector = '1 0 0'
    rotation1_angle = 45
    # so, in total: a point y = +/-0.7 takes values from x = -/+0.7, so solution_function_rot3 should have u = -y
    transformation_order = 'rotation0 rotation1'
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./u_init]
    type = FunctionIC
    variable = u
    function = solution_fcn
  [../]
[]

[Functions]
  [./solution_fcn]
    type = SolutionFunction
    from_variable = u
    solution = solution_uo
  [../]
[]

[Kernels]
  [./diff]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'NEWTON'

  l_max_its = 800
  nl_rel_tol = 1e-10
  num_steps = 1
  end_time = 1
  dt = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = solution_function_rot3
  exodus = true
[]

(modules/porous_flow/test/tests/sinks/s11.i)

# Test PorousFlowEnthalpySink boundary condition

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 2
  ny = 2
  nz = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 10
  zmin = 0
  zmax = 10
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp temp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0.1
  []
[]

[Variables]
  [pp]
    initial_condition = 1
  []
  [temp]
    initial_condition = 2
  []
[]

[Kernels]
  [mass0]
    type = PorousFlowMassTimeDerivative
    fluid_component = 0
    variable = pp
  []

  [heat_conduction]
    type = TimeDerivative
    variable = temp
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 1
    density0 = 10
    thermal_expansion = 0
    viscosity = 11
  []
[]

[Materials]
  [ppss]
    type = PorousFlow1PhaseFullySaturated
    porepressure = pp
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.125
  []

  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
[]

[BCs]
  [left_p]
    type = PorousFlowSink
    variable = pp
    boundary = left
    flux_function = -1
  []
  [left_T]
    # Note, there is no `fluid_phase` or `porepressure_var` prescribed, since they are passed in from the `tests` file
    type = PorousFlowEnthalpySink
    variable = temp
    boundary = left
    T_in = 300
    fp = simple_fluid
    flux_function = -1
  []
[]

[Preconditioning]
  [andy]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 0.25
  end_time = 1
  nl_rel_tol = 1E-12
  nl_abs_tol = 1E-12
[]

[Outputs]
  file_base = s11
  [exodus]
    type = Exodus
    execute_on = 'initial final'
  []
[]

(modules/optimization/test/tests/dirackernels/reporter_time_point_source.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 4
    ny = 4
    nz = 4
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [dot]
    type = TimeDerivative
    variable = u
  []
[]

[DiracKernels]
  [vpp_point_source]
    type = ReporterTimePointSource
    variable = u
    value_name = values4D/value
    x_coord_name = values4D/coordx
    y_coord_name = values4D/coordy
    z_coord_name = values4D/coordz
    weight_name = values4D/weight
    time_name = values4D/time
    combine_duplicates=true
  []
[]

[Reporters]
  [values4D]
    type = ConstantReporter
    real_vector_names = 'coordx coordy coordz time value weight'
    real_vector_values = '0.25 0.25 0.75 0.25 0.75 0.25 0.75 0.25 0.75
                          0.25 0.25 0.75 0.25 0.75 0.25 0.75 0.25 0.75
                          0.25 0.25 0.75 0.25 0.75 0.25 0.75 0.25 0.75;

                          0.25 0.25 0.25 0.75 0.75 0.25 0.25 0.75 0.75
                          0.25 0.25 0.25 0.75 0.75 0.25 0.25 0.75 0.75
                          0.25 0.25 0.25 0.75 0.75 0.25 0.25 0.75 0.75;

                          0.25 0.25 0.25 0.25 0.25 0.75 0.75 0.75 0.75
                          0.25 0.25 0.25 0.25 0.25 0.75 0.75 0.75 0.75
                          0.25 0.25 0.25 0.25 0.25 0.75 0.75 0.75 0.75;

                          0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10
                          0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20
                          0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30 0.30;

                          0.00 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00
                          4.00 1.00 9.00 10.0 11.0 12.0 13.0 14.0 15.0
                          4.0  1.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0;

                          1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
                          1.00 4.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
                          2.00 8.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00'
    outputs = none
  []
[]

[VectorPostprocessors]
  [sample]
    type = PointValueSampler
    variable = u
    points = '0.25 0.25 0.25
              0.75 0.25 0.25
              0.25 0.75 0.25
              0.75 0.75 0.25
              0.25 0.25 0.75
              0.75 0.25 0.75
              0.25 0.75 0.75
              0.75 0.75 0.75'
    sort_by = id
    execute_on = 'initial timestep_end'
  []
[]

[BCs]
  [bc]
    type = DirichletBC
    variable = u
    boundary = 'left right top bottom front back'
    value = 0
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 3
  solve_type = 'PJFNK'
  nl_rel_tol = 1e-10
[]

[Outputs]
  csv = true
  execute_on = 'initial timestep_end'
[]

(test/tests/transfers/multiapp_userobject_transfer/restricted_node_sub.i)

# yy is passed in from the parent app

[Mesh]
  [line]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 5
    xmax = 2.5
  []
  [box]
    type = SubdomainBoundingBoxGenerator
    input = line
    bottom_left = '0 -0.1 -0.1'
    top_right = '1.5 0.1 0.1'
    # need a different block ID than what is in the parent app to make sure the transfer works properly
    block_id = 20
  []
[]

[AuxVariables]
  [A]
  []

  [S]
  []
[]

[AuxKernels]
  [A_ak]
    type = ParsedAux
    variable = A
    use_xyzt = true
    expression = '2*x+4*${yy}'
    execute_on = 'TIMESTEP_BEGIN'
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[UserObjects]
  [A_avg]
    type = LayeredAverage
    block = 20
    num_layers = 2
    direction = x
    variable = A
    execute_on = TIMESTEP_END
  []
[]

[Executioner]
  type = Transient
[]

[Outputs]
  exodus = true
[]

(modules/heat_transfer/test/tests/ad_heat_conduction/test.i)

# This test solves a 1D transient heat equation with a complicated thermal
# conductivity in order to verify jacobian calculation via AD

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  xmax = 0.001
  ymax = 0.001
[]

[Variables]
  [./T]
    initial_condition = 1.5
  [../]
  [./c]
    initial_condition = 1.5
  [../]
[]

[Kernels]
  [./HeatDiff]
    type = ADHeatConduction
    variable = T
    thermal_conductivity = thermal_conductivity
  [../]
  [./heat_dt]
    type = ADHeatConductionTimeDerivative
    variable = T
    specific_heat = thermal_conductivity
    density_name = thermal_conductivity
  [../]
  [./c]
    type = ADDiffusion
    variable = c
  [../]
[]

[Kernels]
  [./c_dt]
    type = TimeDerivative
    variable = c
  [../]
[]

[BCs]
  [./left_c]
    type = DirichletBC
    variable = c
    boundary = left
    value = 2
  [../]
  [./right_c]
    type = DirichletBC
    variable = c
    boundary = right
    value = 1
  [../]
  [./left_T]
    type = DirichletBC
    variable = T
    boundary = top
    value = 1
  [../]
  [./right_T]
    type = DirichletBC
    variable = T
    boundary = bottom
    value = 2
  [../]
[]

[Materials]
  [./k]
    type = ADThermalConductivityTest
    c = c
    temperature = T
  [../]
[]

[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
[]

(tutorials/tutorial02_multiapps/step01_multiapps/02_sub_sublimit.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/xfem/test/tests/moving_interface/moving_diffusion.i)

[GlobalParams]
  order = FIRST
  family = LAGRANGE
[]

[XFEM]
  qrule = volfrac
  output_cut_plane = true
[]

[UserObjects]
  [./level_set_cut_uo]
    type = LevelSetCutUserObject
    level_set_var = ls
    heal_always = true
  [../]
[]

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 3
  xmin = 0.0
  xmax = 1
  ymin = 0.0
  ymax = 1
  elem_type = QUAD4
[]

[AuxVariables]
  [./ls]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxKernels]
  [./ls_function]
    type = FunctionAux
    variable = ls
    function = ls_func
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Functions]
  [./ls_func]
    type = ParsedFunction
    expression = 'x-0.76+0.21*t'
  [../]
[]

[Kernels]
  [./diff]
    type = MatDiffusion
    variable = u
    diffusivity = diffusion_coefficient
  [../]
  [./time_deriv]
    type = TimeDerivative
    variable = u
  [../]
[]

[Constraints]
  [./u_constraint]
    type = XFEMSingleVariableConstraint
    use_displaced_mesh = false
    variable = u
    jump = 0
    use_penalty = true
    alpha = 1e5
    geometric_cut_userobject = 'level_set_cut_uo'
  [../]
[]

[BCs]
  [./right_u]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./left_u]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Materials]
  [./diffusivity_A]
    type = GenericConstantMaterial
    prop_names = A_diffusion_coefficient
    prop_values = 5
  [../]

  [./diffusivity_B]
    type = GenericConstantMaterial
    prop_names = B_diffusion_coefficient
    prop_values = 0.5
  [../]

  [./diff_combined]
    type = LevelSetBiMaterialReal
    levelset_positive_base = 'A'
    levelset_negative_base = 'B'
    level_set_var = ls
    prop_name = diffusion_coefficient
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_hypre_type -pc_hypre_boomeramg_max_iter'
  petsc_options_value = '201                hypre    boomeramg      8'

  l_max_its = 20
  l_tol = 1e-3
  nl_max_its = 15
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-5

  start_time = 0.0
  dt = 1
  end_time = 2

  max_xfem_update = 1
[]

[Outputs]
  exodus = true
  execute_on = timestep_end
  perf_graph = true
  [./console]
    type = Console
    output_linear = true
  [../]
[]

(test/tests/outputs/png/simple_transient_diffusion.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [png]
    type = PNGOutput
    resolution = 25
    color = RWB
    variable = 'u'
  []
[]

(test/tests/transfers/multiapp_postprocessor_to_scalar/between_multiapp/main.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.01
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  nl_rel_tol = 1e-12
[]

[MultiApps]
  [pp_sub_0]
    app_type = MooseTestApp
    positions = '0.5 0.5 0 0.7 0.7 0'
    execute_on = timestep_end
    type = TransientMultiApp
    input_files = sub0.i
  []
  [pp_sub_1]
    app_type = MooseTestApp
    positions = '0.5 0.5 0 0.7 0.7 0'
    execute_on = timestep_end
    type = TransientMultiApp
    input_files = sub1.i
  []
[]

[Transfers]
  [pp_transfer_1]
    type = MultiAppPostprocessorToAuxScalarTransfer
    from_multi_app = pp_sub_0
    to_multi_app = pp_sub_1
    from_postprocessor = average_0
    to_aux_scalar = from_0
  []
  [pp_transfer_2]
    type = MultiAppPostprocessorToAuxScalarTransfer
    from_multi_app = pp_sub_1
    to_multi_app = pp_sub_0
    from_postprocessor = average_1
    to_aux_scalar = from_1
  []
[]

(test/tests/test_harness/csv_validation_tester_01.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 3
  xmax = 3
[]

[Functions]
  [./fn]
    type = PiecewiseLinear
    axis = x
    x = '0 2'
    y = '1.01 2.99'
  [../]
[]

[AuxVariables]
  [./a]
  [../]
[]

[AuxKernels]
  [./a_ak]
    type = FunctionAux
    variable = a
    function = fn
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./value1]
    type = PointValue
    variable = a
    point = '0 0 0'
  [../]

  [./value2]
    type = PointValue
    variable = a
    point = '1 0 0'
  [../]

  [./value3]
    type = PointValue
    variable = a
    point = '2 0 0'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.1
  solve_type = NEWTON
[]

[Outputs]
  [./csv]
    type = CSV
    file_base = csv_validation_tester_01
    execute_on = 'final'
  [../]
[]

(examples/ex07_ics/transient.i)

[Mesh]
  file = half-cone.e
[]

[Variables]
  [./diffused]
    order = FIRST
    family = LAGRANGE

    # Use the initial Condition block underneath the variable
    # for which we want to apply this initial condition
    [./InitialCondition]
      type = ExampleIC
      coefficient = 2.0
    [../]
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = diffused
  [../]

  [./diff]
    type = Diffusion
    variable = diffused
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = diffused
    boundary = 'top'
    value = 2
  [../]

  [./right]
    type = DirichletBC
    variable = diffused
    boundary = 'bottom'
    value = 8
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  start_time = 0
  num_steps = 10

  #Preconditioned JFNK (default)
  solve_type = 'PJFNK'


[]

[Outputs]
  # Request that we output the initial condition so we can inspect
  # the values with our visualization tool
  exodus = true
[]

(test/tests/bcs/periodic/wedge.i)

[Mesh]
  file = wedge.e
  uniform_refine = 1
[]

[Functions]
  active = 'tr_x tr_y'

  [./tr_x]
    type = ParsedFunction
    expression = -x
  [../]

  [./tr_y]
    type = ParsedFunction
    expression = y
  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'diff forcing dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = GaussContForcing
    variable = u
    x_center = -0.5
    y_center = 3.0
    x_spread = 0.2
    y_spread = 0.2
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  #active = ' '

  [./Periodic]
    [./x]
      primary = 1
      secondary = 2
      transform_func = 'tr_x tr_y'
      inv_transform_func = 'tr_x tr_y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.5
  num_steps = 6
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_wedge
  exodus = true
[]

(test/tests/multiapps/grid-sequencing/vi-fine.i)

l = 10
nx = 80
num_steps = 2

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = ${l}
  nx = ${nx}
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [bounds]
  []
[]

[Bounds]
  [u_upper_bounds]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = upper
    bound_value = ${l}
  []
  [u_lower_bounds]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = lower
    bound_value = 0
  []
[]

[ICs]
  [u]
    type = FunctionIC
    variable = u
    function = 'x'
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [ffn]
    type = BodyForce
    variable = u
    function = 'if(x<5,-1,1)'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = 0
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = ${l}
    variable = u
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  num_steps = ${num_steps}
  solve_type = NEWTON
  dtmin = 1
  petsc_options = '-snes_vi_monitor'
  petsc_options_iname = '-snes_max_linear_solve_fail -ksp_max_it -pc_type -sub_pc_factor_levels -snes_linesearch_type -snes_type'
  petsc_options_value = '0                           30          asm      16                    basic                 vinewtonrsls'
[]

[Outputs]
  exodus = true
  [csv]
    type = CSV
    execute_on = 'nonlinear timestep_end'
  []
  [dof]
    type = DOFMap
    execute_on = 'initial'
  []
[]

[Debug]
  show_var_residual_norms = true
[]

[Postprocessors]
  active = 'upper_violations lower_violations'
  [upper_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = '${fparse 10+1e-8}'
    comparator = 'greater'
  []
  [lower_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = -1e-8
    comparator = 'less'
  []
  [nls]
    type = NumNonlinearIterations
  []
  [cum_nls]
    type = CumulativeValuePostprocessor
    postprocessor = nls
  []
[]

[MultiApps]
  [coarse]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_begin
    positions = '0 0 0'
    input_files = vi-coarse.i
  []
[]

[Transfers]
  [mesh_function_begin]
    type = MultiAppGeneralFieldShapeEvaluationTransfer
    from_multi_app = coarse
    source_variable = u
    variable = u
    execute_on = timestep_begin
  []
[]

(test/tests/outputs/intervals/output_limiting_function.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Functions]
  [test_function]
    type = PiecewiseLinear
    x = '0.15 0.375 0.892'
    y = '1    1     1'
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 15
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  verbose = true
[]

[Outputs]
  execute_on = 'timestep_end'
  [out]
    type = Exodus
    output_limiting_function = test_function
    sync_only = true
  []
[]

(modules/phase_field/test/tests/KKS_system/kks_example_nested_damped.i)

#
# Two-phase damped nested KKS with log-free energies
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmin = -2.5
  xmax = 2.5
  ymin = -2.5
  ymax = 2.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[AuxVariables]
  [Fglobal]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Variables]
  # order parameter
  [eta]
    order = FIRST
    family = LAGRANGE
  []

  # hydrogen concentration
  [c]
    order = FIRST
    family = LAGRANGE
  []

  # chemical potential
  [w]
    order = FIRST
    family = LAGRANGE
  []
[]

[ICs]
  [eta]
    variable = eta
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 1
    outvalue = 0.0
    int_width = 0.75
  []
  [c]
    variable = c
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 0.9
    outvalue = 0.1
    int_width = 0.75
  []
[]

[BCs]
  [Periodic]
    [all]
      variable = 'eta w c'
      auto_direction = 'x y'
    []
  []
[]

[Materials]
  # Free energy of the matrix
  [fm]
    type = DerivativeParsedMaterial
    property_name = fm
    expression = 'cm*log(cm/1e-4) + (1-cm)*log((1-cm)/(1-1e-4))'
    material_property_names = 'cm'
    additional_derivative_symbols = 'cm'
    compute = false
  []

  # Free energy of the delta phase
  [fd]
    type = DerivativeParsedMaterial
    property_name = fd
    expression = 'cd*log(cd/0.9999) + (1-cd)*log((1-cd)/(1-0.9999))'
    material_property_names = 'cd'
    additional_derivative_symbols = 'cd'
    compute = false
  []
  [C]
    type = DerivativeParsedMaterial
    property_name = 'C'
    material_property_names = 'cm cd'
    expression = '(cm>0)&(cm<1)&(cd>0)&(cd<1)'
    compute = false
  []
  # Compute phase concentrations
  [PhaseConcentrationMaterial]
    type = KKSPhaseConcentrationMaterial
    global_cs = 'c'
    ci_names = 'cm cd'
    ci_IC = '0.1 0.9'
    fa_name = fm
    fb_name = fd
    h_name = h
    min_iterations = 1
    max_iterations = 100
    absolute_tolerance = 1e-15
    relative_tolerance = 1e-8
    step_size_tolerance = 1e-05
    nested_iterations = iter
    outputs = exodus
    damped_Newton = true
    conditions = C
    damping_factor = 0.8
  []

  # Compute chain rule terms
  [PhaseConcentrationDerivatives]
    type = KKSPhaseConcentrationDerivatives
    global_cs = 'c'
    eta = eta
    ci_names = 'cm cd'
    fa_name = fm
    fb_name = fd
    h_name = h
  []

  # h(eta)
  [h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  []

  # g(eta)
  [g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  []

  # constant properties
  [constants]
    type = GenericConstantMaterial
    prop_names = 'M   L   kappa'
    prop_values = '0.7 0.7 0.4  '
  []
[]

[Kernels]
  # full transient
  active = 'CHBulk ACBulkF ACBulkC ACInterface dcdt detadt ckernel'

  #
  # Cahn-Hilliard Equation
  #
  [CHBulk]
    type = NestedKKSSplitCHCRes
    variable = c
    global_cs = 'c'
    w = w
    all_etas = eta
    ca_names = 'cm cd'
    fa_name = fm
    coupled_variables = 'eta w'
  []
  [dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  []
  [ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  []

  #
  # Allen-Cahn Equation
  #
  [ACBulkF]
    type = NestedKKSACBulkF
    variable = eta
    global_cs = 'c'
    ci_names = 'cm cd'
    fa_name = fm
    fb_name = fd
    g_name = g
    h_name = h
    mob_name = L
    w = 0.4
    coupled_variables = 'c'
  []
  [ACBulkC]
    type = NestedKKSACBulkC
    variable = eta
    global_cs = 'c'
    ci_names = 'cm cd'
    fa_name = fm
    h_name = h
    mob_name = L
    coupled_variables = 'c'
  []
  [ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa
  []
  [detadt]
    type = TimeDerivative
    variable = eta
  []
[]

[AuxKernels]
  [GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fm
    fb_name = fd
    w = 0.4
  []
[]

[Executioner]
  type = Transient
  scheme = bdf2
    solve_type = 'PJFNK'

    petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type -pc_factor_shift_type'
    petsc_options_value = ' asm    lu          nonzero                    nonzero'

  l_max_its = 100
  nl_max_its = 100
  num_steps = 3

  dt = 1e-5
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [full]
    type = SMP
    full = true
  []
[]

[Outputs]
  file_base = kks_example_nested_damped
  exodus = true
[]

(test/tests/misc/check_error/time_integrator_error.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  # Don't allow multiple TimeIntegrators
  scheme = 'implicit-euler'
  [./TimeIntegrator]
    type = 'ImplicitEuler'
  [../]

  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(tutorials/tutorial02_multiapps/step01_multiapps/03_sub_subcycle.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/auxkernels/time_derivative_aux/test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 3
  ny = 2
[]

[Functions]
  # These functions have implemented time derivatives
  [some_function]
    type = ParsedFunction
    expression = t*(x+y)
  []
  [some_other_function]
    type = PiecewiseLinear
    x = '0 0.05 0.15 0.25'
    y = '1 2 3 4'
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [reaction]
    type = Reaction
    variable = u
  []
  [diffusion]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [left]
    type = NeumannBC
    variable = u
    value = 5
    boundary = 'left'
  []
[]

[Materials]
  [material]
    type = GenericFunctorMaterial
    prop_names = 'some_matprop'
    prop_values = 'some_function'
  []
[]

[AuxVariables]
  [variable_derivative]
    family = MONOMIAL
    order = CONSTANT
  []
  inactive = 'variable_derivative_fv'
  [variable_derivative_fv]
    family = MONOMIAL
    order = CONSTANT
    fv = true
  []
  [function_derivative_qp]
    family = MONOMIAL
    order = FIRST
  []
  [function_derivative_elem]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  # Time derivative of a nonlinear variable
  [var_derivative]
    type = TimeDerivativeAux
    variable = variable_derivative
    functor = u
    factor = 10
    execute_on = 'TIMESTEP_END'
  []
  # this places the derivative of a FE variable in a FV one
  # let's output a warning
  inactive = 'var_derivative_to_fv'
  [var_derivative_to_fv]
    type = TimeDerivativeAux
    variable = variable_derivative_fv
    functor = u
  []

  # Time derivative of a function: using the functor system
  # Time derivative of a functor material property is not currently supported
  [function_derivative_quadrature_point]
    type = TimeDerivativeAux
    variable = function_derivative_qp
    functor = 'some_function'
    factor = 2
    execute_on = 'INITIAL TIMESTEP_END'
  []
  [function_derivative_element]
    type = TimeDerivativeAux
    variable = function_derivative_elem
    functor = 'some_other_function'
    factor = 2
    execute_on = 'INITIAL TIMESTEP_END'
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 2
  nl_abs_tol = 1e-12
[]

[Outputs]
  exodus = true
[]

(test/tests/nodalkernels/high_order_time_integration/high_order_time_integration.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./v]
  [../]
[]

[AuxVariables]
  [./exact_solution]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[NodalKernels]
  [./td]
    type = TimeDerivativeNodalKernel
    variable = v
  [../]
  [./f]
    type = UserForcingFunctionNodalKernel
    variable = v
    function = t*t*t+4
  [../]
[]

[AuxKernels]
  [./exact]
    type = FunctionAux
    variable = exact_solution
    function = exact_solution_function
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Functions]
  [./exact_solution_function]
    type = ParsedFunction
    expression = (1.0/4.0)*(16*t+t*t*t*t)
  [../]
[]

[Postprocessors]
  [./error]
    type = NodalL2Error
    variable = v
    function = exact_solution_function
  [../]
[]

[Executioner]
  type = Transient
  end_time = 10
  dt = 1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  scheme = 'crank-nicolson'
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_variable_value_sample_transfer/quad_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmax = 0.01
  ymax = 0.01
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.00001
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./pp]
    type = Receiver
    default = -1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_rel_tol = 1e-12
[]

[Outputs]
  exodus = true
[]

(test/tests/restart/restart_transient_from_transient/pseudo_trans_with_2subs_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 3
  ny = 3
  xmax = 0.3
  ymax = 0.3
[]

[AuxVariables]
  [power_density]
  []
[]

[Variables]
  [temp]
  []
[]

[Kernels]
  [heat_timedt]
    type = TimeDerivative
    variable = temp
  []
  [heat_conduction]
     type = Diffusion
     variable = temp
  []
  [heat_source_fuel]
    type = CoupledForce
    variable = temp
    v = power_density
  []
[]

[BCs]
  [bc]
    type = DirichletBC
    variable = temp
    boundary = '1 3'
    value = 100
  []
  [bc2]
    type = NeumannBC
    variable = temp
    boundary = '0 2'
    value = 10.0
  []
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  nl_abs_tol = 1e-7
  nl_rel_tol = 1e-7

  end_time = 20
  dt = 2.0
[]

[Postprocessors]
  [temp_fuel_avg]
    type = ElementAverageValue
    variable = temp
    execute_on = 'initial timestep_end'
  []
  [pwr_density]
    type = ElementIntegralVariablePostprocessor
    variable = power_density
    execute_on = 'initial timestep_end'
  []
[]

[Outputs]
  perf_graph = true
  exodus = true
  color = true
[]

(modules/porous_flow/test/tests/fluidstate/brineco2_nonisothermal.i)

[Mesh]
  [mesh]
    type = GeneratedMeshGenerator
    dim = 2
  []
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pgas]
    initial_condition = 20e6
  []
  [z]
     initial_condition = 0.2
  []
  [temperature]
    initial_condition = 70
  []
[]

[AuxVariables]
  [xnacl]
    initial_condition = 0.1
  []
  [pressure_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [pressure_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [saturation_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [saturation_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [density_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [density_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [viscosity_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [viscosity_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [enthalpy_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [enthalpy_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [internal_energy_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [internal_energy_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [x0_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [x0_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [x1_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [x1_gas]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [pressure_water]
    type = PorousFlowPropertyAux
    variable = pressure_water
    property = pressure
    phase = 0
    execute_on = timestep_end
  []
  [pressure_gas]
    type = PorousFlowPropertyAux
    variable = pressure_gas
    property = pressure
    phase = 1
    execute_on = timestep_end
  []
  [saturation_water]
    type = PorousFlowPropertyAux
    variable = saturation_water
    property = saturation
    phase = 0
    execute_on = timestep_end
  []
  [saturation_gas]
    type = PorousFlowPropertyAux
    variable = saturation_gas
    property = saturation
    phase = 1
    execute_on = timestep_end
  []
  [density_water]
    type = PorousFlowPropertyAux
    variable = density_water
    property = density
    phase = 0
    execute_on = timestep_end
  []
  [density_gas]
    type = PorousFlowPropertyAux
    variable = density_gas
    property = density
    phase = 1
    execute_on = timestep_end
  []
  [viscosity_water]
    type = PorousFlowPropertyAux
    variable = viscosity_water
    property = viscosity
    phase = 0
    execute_on = timestep_end
  []
  [viscosity_gas]
    type = PorousFlowPropertyAux
    variable = viscosity_gas
    property = viscosity
    phase = 1
    execute_on = timestep_end
  []
  [enthalpy_water]
    type = PorousFlowPropertyAux
    variable = enthalpy_water
    property = enthalpy
    phase = 0
    execute_on = timestep_end
  []
  [enthalpy_gas]
    type = PorousFlowPropertyAux
    variable = enthalpy_gas
    property = enthalpy
    phase = 1
    execute_on = timestep_end
  []
  [internal_energy_water]
    type = PorousFlowPropertyAux
    variable = internal_energy_water
    property = internal_energy
    phase = 0
    execute_on = timestep_end
  []
  [internal_energy_gas]
    type = PorousFlowPropertyAux
    variable = internal_energy_gas
    property = internal_energy
    phase = 1
    execute_on = timestep_end
  []
  [x1_water]
    type = PorousFlowPropertyAux
    variable = x1_water
    property = mass_fraction
    phase = 0
    fluid_component = 1
    execute_on = timestep_end
  []
  [x1_gas]
    type = PorousFlowPropertyAux
    variable = x1_gas
    property = mass_fraction
    phase = 1
    fluid_component = 1
    execute_on = timestep_end
  []
  [x0_water]
    type = PorousFlowPropertyAux
    variable = x0_water
    property = mass_fraction
    phase = 0
    fluid_component = 0
    execute_on = timestep_end
  []
  [x0_gas]
    type = PorousFlowPropertyAux
    variable = x0_gas
    property = mass_fraction
    phase = 1
    fluid_component = 0
    execute_on = timestep_end
  []
[]

[Kernels]
  [mass0]
    type = PorousFlowMassTimeDerivative
    variable = pgas
    fluid_component = 0
  []
  [mass1]
    type = PorousFlowMassTimeDerivative
    variable = z
    fluid_component = 1
  []
  [heat]
    type = TimeDerivative
    variable = temperature
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pgas z temperature'
    number_fluid_phases = 2
    number_fluid_components = 2
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0
  []
  [fs]
    type = PorousFlowBrineCO2
    brine_fp = brine
    co2_fp = co2
    capillary_pressure = pc
  []
[]

[FluidProperties]
  [co2]
    type = CO2FluidProperties
  []
  [brine]
    type = BrineFluidProperties
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [brineco2]
    type = PorousFlowFluidState
    gas_porepressure = pgas
    z = z
    temperature = temperature
    temperature_unit = Celsius
    xnacl = xnacl
    capillary_pressure = pc
    fluid_state = fs
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1e-12 0 0 0 1e-12 0 0 0 1e-12'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 1
  end_time = 1
  nl_abs_tol = 1e-12
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Postprocessors]
  [density_water]
    type = ElementIntegralVariablePostprocessor
    variable = density_water
  []
  [density_gas]
    type = ElementIntegralVariablePostprocessor
    variable = density_gas
  []
  [viscosity_water]
    type = ElementIntegralVariablePostprocessor
    variable = viscosity_water
  []
  [viscosity_gas]
    type = ElementIntegralVariablePostprocessor
    variable = viscosity_gas
  []
  [enthalpy_water]
    type = ElementIntegralVariablePostprocessor
    variable = enthalpy_water
  []
  [enthalpy_gas]
    type = ElementIntegralVariablePostprocessor
    variable = enthalpy_gas
  []
  [internal_energy_water]
    type = ElementIntegralVariablePostprocessor
    variable = internal_energy_water
  []
  [internal_energy_gas]
    type = ElementIntegralVariablePostprocessor
    variable = internal_energy_gas
  []
  [x1_water]
    type = ElementIntegralVariablePostprocessor
    variable = x1_water
  []
  [x0_water]
    type = ElementIntegralVariablePostprocessor
    variable = x0_water
  []
  [x1_gas]
    type = ElementIntegralVariablePostprocessor
    variable = x1_gas
  []
  [x0_gas]
    type = ElementIntegralVariablePostprocessor
    variable = x0_gas
  []
  [sg]
    type = ElementIntegralVariablePostprocessor
    variable = saturation_gas
  []
  [sw]
    type = ElementIntegralVariablePostprocessor
    variable = saturation_water
  []
  [pwater]
    type = ElementIntegralVariablePostprocessor
    variable = pressure_water
  []
  [pgas]
    type = ElementIntegralVariablePostprocessor
    variable = pressure_gas
  []
  [x0mass]
    type = PorousFlowFluidMass
    fluid_component = 0
    phase = '0 1'
  []
  [x1mass]
    type = PorousFlowFluidMass
    fluid_component = 1
    phase = '0 1'
  []
[]

[Outputs]
  csv = true
  execute_on = timestep_end
[]

(test/tests/outputs/overwrite/overwrite.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [./out]
    type = Exodus
    overwrite = true # testing this
  [../]
[]

(test/tests/bcs/periodic/periodic_bc_displaced_problem.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  nz = 0
  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[GlobalParams]
  use_displaced_mesh = false
  displacements = 'disp_x disp_y'
[]


[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_x]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_y]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = GaussContForcing
    variable = u
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_x]
    type = Diffusion
    variable = disp_x
  [../]

  [./diff_y]
    type = Diffusion
    variable = disp_y
  [../]

[]

[BCs]
  [./Periodic]
    [./x]
      variable = u
      primary = 3
      secondary = 1
      translation = '40 0 0'
    [../]

    [./y]
      variable = u
      primary = 0
      secondary = 2
      translation = '0 40 0'
    [../]
  [../]

  [./disp_0]
    type = DirichletBC
    variable = disp_x
    boundary = '0'
    value = 0.01
  [../]

  [./disp_1]
    type = DirichletBC
    variable = disp_y
    boundary = '0'
    value = 0.01
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 20
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_displaced_problem
  exodus = true
[]

(test/tests/bcs/sin_bc/sin_dirichlet_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  nz = 0
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[Functions]
  [./initial_value]
    type = ParsedFunction
    expression = 'x'
  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = initial_value
    [../]
  [../]
[]

[Kernels]
  active = 'diff ie'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = SinDirichletBC
    variable = u
    boundary = 3
    initial = 0.0
    final = 1.0
    duration = 10.0
  [../]

  [./right]
    type = SinDirichletBC
    variable = u
    boundary = 1
    initial = 1.0
    final = 0.0
    duration = 10.0
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  num_steps = 10
  dt = 1.0
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/picard/picard_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  parallel_type = replicated
  uniform_refine = 1
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_abs_tol = 1e-14
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_sub.i
    clone_parent_mesh = true
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(modules/stochastic_tools/test/tests/transfers/sobol/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

[Postprocessors]
  [left_bc]
    type = PointValue
    point = '0 0 0'
    variable = u
  []
  [right_bc]
    type = PointValue
    point = '1 0 0'
    variable = u
  []
[]

[Outputs]
  csv = true
[]

(test/tests/misc/check_error/multi_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]

  # We can't control perf log output from a subapp
  perf_graph = true
[]

(test/tests/interfacekernels/1d_interface/reaction_1D_transient.i)

# Transient-state test for the InterfaceReaction kernel.
#
# Same to steady-state, except the following
#
# Natural BCs are applied (i.e. NewmannBC h=0 at left and right)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 10
    xmax = 2
  []
  [./subdomain1]
    input = gen
    type = SubdomainBoundingBoxGenerator
    bottom_left = '1.0 0 0'
    block_id = 1
    top_right = '2.0 1.0 0'
  [../]
  [./interface]
    type = SideSetsBetweenSubdomainsGenerator
    input = 'subdomain1'
    primary_block = '0'
    paired_block = '1'
    new_boundary = 'primary0_interface'
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    block = '0'
  [../]
  [./v]
    order = FIRST
    family = LAGRANGE
    block = '1'
  [../]
[]

[Kernels]
  [./diff_u]
    type = MatDiffusion
    diffusivity = D
    variable = u
    block = '0'
  [../]
  [./diff_v]
    type = MatDiffusion
    diffusivity = D
    variable = v
    block = '1'
  [../]
  [./diff_u_dt]
    type = TimeDerivative
    variable = u
    block = '0'
  [../]
  [./diff_v_dt]
    type = TimeDerivative
    variable = v
    block = '1'
  [../]
  [./source_u]
    type = BodyForce
    variable = u
    block = '0'
  [../]
[]

[InterfaceKernels]
  [./interface]
    type = InterfaceDiffusion
    variable = u
    neighbor_var = 'v'
    boundary = 'primary0_interface'
    D = D
    D_neighbor = D
  [../]
  [./interface_reaction]
    type = InterfaceReaction
    variable = u
    neighbor_var = 'v'
    boundary = 'primary0_interface'
    kf = 1 # Forward reaction rate coefficient
    kb = 2 # Backward reaction rate coefficient
  [../]
[]

[Materials]
  [./block0]
    type = GenericConstantMaterial
    block = '0'
    prop_names = 'D'
    prop_values = '4'
  [../]
  [./block1]
    type = GenericConstantMaterial
    block = '1'
    prop_names = 'D'
    prop_values = '2'
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = NEWTON
[]

[Outputs]
  exodus = true
  print_linear_residuals = true
[]

[Debug]
  show_var_residual_norms = true
[]

(modules/porous_flow/test/tests/dirackernels/bh_except07.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    point_file = bh02.bh
    use_mobility = true
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(modules/porous_flow/examples/multiapp_fracture_flow/diffusion_multiapp/single_var.i)

# No heat transfer between matrix and fracture, with the matrix and fracture being identical spatial domains
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 100
    xmin = 0
    xmax = 50.0
  []
[]

[Variables]
  [T]
  []
[]

[ICs]
  [T]
    type = FunctionIC
    variable = T
    function = 'if(x<0.5, 2, 0)'  # delta function
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = T
  []
  [fracture_diffusion]
    type = Diffusion
    variable = T
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]

[VectorPostprocessors]
  [final_results]
    type = LineValueSampler
    start_point = '0 0 0'
    end_point = '50 0 0'
    num_points = 11
    sort_by = x
    variable = T
    outputs = final_csv
  []
[]

[Outputs]
  print_linear_residuals = false
  [final_csv]
    type = CSV
    sync_times = 100
    sync_only = true
  []
[]

(test/tests/ics/from_exodus_solution/elem_part1.i)

# We run a simple problem (5 time steps and save off the solution)
# In part2, we load the solution and solve a steady problem. The test check, that the initial state in part 2 is the same as the last state from part1

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
[]

[Functions]
  [exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  []

  [forcing_fn]
    type = ParsedFunction
    expression = -4+(x*x+y*y)
  []
[]

[AuxVariables]
  [e]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [ak]
    type = FunctionAux
    variable = e
    function = exact_fn
  []
[]

[Variables]
  active = 'u'

  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  active = 'ie diff ffn'

  [ie]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []

  [ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.2
  start_time = 0
  num_steps = 5
[]

[Outputs]
  exodus = true
  checkpoint = true
[]

(test/tests/time_steppers/iteration_adaptive/adapt_tstep_grow_init_dt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmax = 5
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./dt]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 10
  [../]
  [./right]
    type = NeumannBC
    variable = u
    boundary = right
    value = -1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  start_time = 0.0
  end_time = 20.0
  n_startup_steps = 2
  dtmax = 6.0
  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 10
    dt = 1.0
  [../]
[]

[Postprocessors]
  [./_dt]
    type = TimestepSize
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
  checkpoint = true
[]

(modules/phase_field/test/tests/KKS_system/two_phase.i)

#
# This test ensures that the equilibrium solution using the dedicated two phase
# formulation is identical to the two order parameters with a Lagrange multiplier
# constraint in lagrange_multiplier.i
#

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 20
  xmax = 5
[]

[AuxVariables]
  [Fglobal]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Variables]
  # order parameter
  [eta]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.5
  []

  # hydrogen concentration
  [c]
    order = FIRST
    family = LAGRANGE
    [InitialCondition]
      type = FunctionIC
      function = x/5
    []
  []

  # chemical potential
  [w]
    order = FIRST
    family = LAGRANGE
  []

  # hydrogen phase concentration (matrix)
  [cm]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.2
  []
  # hydrogen phase concentration (delta phase)
  [cd]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.5
  []
[]

[Materials]
  # Free energy of the matrix
  [fm]
    type = DerivativeParsedMaterial
    property_name = fm
    coupled_variables = 'cm'
    expression = '(0.1-cm)^2'
  []

  # Free energy of the delta phase
  [fd]
    type = DerivativeParsedMaterial
    property_name = fd
    coupled_variables = 'cd'
    expression = '(0.9-cd)^2'
  []

  # h(eta)
  [h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  []

  # g(eta)
  [g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  []

  # constant properties
  [constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   kappa'
    prop_values = '0.7 0.7 0.4  '
  []
[]

[Kernels]
  # full transient
  active = 'PhaseConc ChemPotVacancies CHBulk ACBulkF ACBulkC ACInterface dcdt detadt ckernel'

  # enforce c = (1-h(eta))*cm + h(eta)*cd
  [PhaseConc]
    type = KKSPhaseConcentration
    ca = cm
    variable = cd
    c = c
    eta = eta
  []

  # enforce pointwise equality of chemical potentials
  [ChemPotVacancies]
    type = KKSPhaseChemicalPotential
    variable = cm
    cb = cd
    fa_name = fm
    fb_name = fd
  []

  #
  # Cahn-Hilliard Equation
  #
  [CHBulk]
    type = KKSSplitCHCRes
    variable = c
    ca = cm
    fa_name = fm
    w = w
  []

  [dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  []
  [ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  []

  #
  # Allen-Cahn Equation
  #
  [ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name = fm
    fb_name = fd
    coupled_variables = 'cm cd'
    w = 0.4
  []
  [ACBulkC]
    type = KKSACBulkC
    variable = eta
    ca = cm
    cb = cd
    fa_name = fm
    mob_name = L
  []
  [ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa
    mob_name = L
  []
  [detadt]
    type = TimeDerivative
    variable = eta
  []
[]

[AuxKernels]
  [GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fm
    fb_name = fd
    w = 0.4
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type -pc_factor_shift_type'
  petsc_options_value = ' asm    lu          nonzero                    nonzero'
  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  nl_abs_tol = 1.0e-11

  num_steps = 35
  dt = 10
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [full]
    type = SMP
    full = true
  []
[]

[VectorPostprocessors]
  [c]
    type = LineValueSampler
    variable = c
    start_point = '0 0 0'
    end_point = '5 0 0'
    num_points = 21
    sort_by = x
  []
[]

[Outputs]
  csv = true
  execute_on = FINAL
[]

(test/tests/outputs/intervals/no_final_repeat.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  [./out]
    type = Exodus
    execute_on = 'final timestep_end'
  [../]
[]

(modules/phase_field/test/tests/initial_conditions/SpecifiedSmoothSuperellipsoidIC.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 25
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c]
    type = SpecifiedSmoothSuperellipsoidIC
    variable = c
    x_positions = '15 35'
    y_positions = '25.0 25.0'
    z_positions = '0 0'
    as = '8.0 8.0'
    bs = '12.0 8.0'
    cs = '60.0 8.0'
    ns = '3.5 2.0'
    invalue = 1.0
    outvalue = -0.8
    int_width = 4.0
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'
  solve_type = 'NEWTON'

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-4
  nl_max_its = 40
  nl_rel_tol = 1e-9

  start_time = 0.0
  num_steps = 1
  dt = 2.0
[]

[Outputs]
  exodus = false
  [./out]
    type = Exodus
    refinements = 2
  [../]
[]

(test/tests/postprocessors/memory_usage/print_memory_usage.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./dt]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Adaptivity]
  [./Markers]
    [./uni]
      type = UniformMarker
      mark = REFINE
    [../]
  [../]

  # this marker will tag every element for refinement, growing the problem
  # exponentially with each timestep
  marker = uni

  # avoid a refine after the final step
  stop_time = 4.5
[]

[Postprocessors]
  [./physical]
    type = MemoryUsage
    mem_type = physical_memory
    value_type = total
    # by default MemoryUsage reports the peak value for the current timestep
    # out of all samples that have been taken (at linear and non-linear iterations)
    execute_on = 'INITIAL TIMESTEP_END NONLINEAR LINEAR'
  [../]
  [./virtual]
    type = MemoryUsage
    mem_type = virtual_memory
    value_type = total
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
  [./page_faults]
    type = MemoryUsage
    mem_type = page_faults
    value_type = total
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
  [./DOFs]
    type = NumDOFs
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
  [./walltime]
    type = PerfGraphData
    section_name = "Root"
    data_type = total
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -sub_pc_type'
  petsc_options_value = 'asm      lu'

  nl_abs_tol = 1e-10

  num_steps = 5
  dt = 1
[]

[Outputs]
  csv = true
  execute_on = 'INITIAL TIMESTEP_END FINAL'
  perf_graph = true
[]

(test/tests/multiapps/relaxation/picard_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
    initial_condition = 1
  []
  [inverse_v]
    initial_condition = 1
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = inverse_v
  []
[]

[AuxKernels]
  [invert_v]
    type = QuotientAux
    variable = inverse_v
    denominator = v
    numerator = 20.0
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [Neumann_right]
    type = NeumannBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_abs_tol = 1e-14
[]

[Outputs]
  exodus = true
  execute_on = 'INITIAL TIMESTEP_END'
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_begin
    positions = '0 0 0'
    input_files = picard_relaxed_sub.i
    # The input was originally created with effectively no restore
    # see the changes made for #5554 then reverted in #28115
    no_restore = true
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(modules/phase_field/test/tests/Nucleation/material.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  nz = 0
  xmin = 0
  xmax = 20
  ymin = 0
  ymax = 20
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    boundary = left
    variable = c
    value = 0
  [../]
  [./right]
    type = DirichletBC
    boundary = right
    variable = c
    value = 1
  [../]
  [./Periodic]
    [./all]
      auto_direction = y
    [../]
  [../]
[]

[Kernels]
  [./c]
    type = Diffusion
    variable = c
  [../]
  [./dt]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./nucleation]
    type = DiscreteNucleation
    op_names  = c
    op_values = 1
    map = map
    outputs = exodus
  [../]
[]

[UserObjects]
  [./inserter]
    type = DiscreteNucleationInserter
    hold_time = 1
    probability = 0.01
    radius = 3.27
  [../]
  [./map]
    type = DiscreteNucleationMap
    periodic = c
    inserter = inserter
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
  hide = c
[]

(test/tests/time_integrators/crank-nicolson/cranic_adapt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 4
  ny = 4
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = sin(pi*x)*sin(pi*y)+2*t*pi*pi*sin(pi*x)*sin(pi*y)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*sin(pi*x)*sin(pi*y)
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  # Use the block format instead of the scheme parameter
  [./TimeIntegrator]
    type = CrankNicolson
  [../]

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.1

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/userobjects/setup_interface_count/side.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 2
    ny = 2
  []
  [./right_side]
    input = gen
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0 0 0'
    top_right = '1 0.5 0'
    block_id = 1
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [./initial] # 1 per simulation
    type = SideSetupInterfaceCount
    count_type = 'initial'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./timestep] # once per timestep
    type = SideSetupInterfaceCount
    count_type = 'timestep'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./subdomain] # 1 on initial and  for each timestep
    type = SideSetupInterfaceCount
    count_type = 'subdomain'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./initialize] # 1 for initial and 2 for each timestep
    type = SideSetupInterfaceCount
    count_type = 'initialize'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./finalize] # 1 for initial and 2 for each timestep
    type = SideSetupInterfaceCount
    count_type = 'finalize'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./execute] # 4 for initial and 8 for each timestep
    type = SideSetupInterfaceCount
    count_type = 'execute'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./threadjoin] # 1 for initial and 2 for each timestep
    type = SideSetupInterfaceCount
    count_type = 'threadjoin'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
[]

[Outputs]
  csv = true
[]

(test/tests/misc/intermittent_failure/intermittent_failure.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

# This object will behave different on different invocations if
# MOOSE_ENABLE_INTERMITTENT_FAILURES is set
[UserObjects]
  [intermittent_failure]
    type = IntermittentFailureUO
    timestep_to_fail = 2
  []
[]

(test/tests/postprocessors/default_value/default_value.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = DefaultPostprocessorDiffusion
    variable = u
    #pps_name = invalid_postprocessor_name
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  dt = 0.1
  num_steps = 10
[]

[Outputs]
  exodus = true
[]

(test/tests/time_steppers/calc_const_dt/calc_const_dt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  num_steps = 10
  end_time = 2

  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/misc/test/tests/dynamic_loading/dynamic_load_multiapp/misc_parent_no_path.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    positions = '0.5 0.5 0'
    type = TransientMultiApp
    input_files = 'phase_field_sub.i'

    # Here we'll attempt to load a different module that's not compiled into this module
    app_type = PhaseFieldApp
  []
[]

(modules/porous_flow/test/tests/functions/mpf_except1.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dummy]
    type = TimeDerivative
    variable = u
  []
[]

[Functions]
  [moving_planar_front]
    type = MovingPlanarFront
    start_posn = '1 1 0'
    end_posn = '1 1 0'
    active_length = 1
    distance = t
  []
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 10
[]

[Outputs]
  file_base = mpf_except1.i
  exodus = true
[]

(modules/solid_mechanics/test/tests/jacobian/poro01.i)

# tests of the poroelasticity kernel, PoroMechanicsCoupling
# in conjunction with the usual StressDivergenceTensors Kernel
[Mesh]
  type = GeneratedMesh
  dim = 3
[]

[GlobalParams]
  block = 0
[]

[Variables]
  [./disp_x]
  [../]
  [./disp_y]
  [../]
  [./disp_z]
  [../]
  [./p]
  [../]
[]

[ICs]
  [./disp_x]
    type = RandomIC
    variable = disp_x
    min = -1
    max = 1
  [../]
  [./disp_y]
    type = RandomIC
    variable = disp_y
    min = -1
    max = 1
  [../]
  [./disp_z]
    type = RandomIC
    variable = disp_z
    min = -1
    max = 1
  [../]
  [./p]
    type = RandomIC
    variable = p
    min = -1
    max = 1
  [../]
[]

[Kernels]
  [./unimportant_p]
    type = TimeDerivative
    variable = p
  [../]
  [./grad_stress_x]
    type = StressDivergenceTensors
    displacements = 'disp_x disp_y disp_z'
    variable = disp_x
    component = 0
  [../]
  [./grad_stress_y]
    type = StressDivergenceTensors
    variable = disp_y
    displacements = 'disp_x disp_y disp_z'
    component = 1
  [../]
  [./grad_stress_z]
    type = StressDivergenceTensors
    variable = disp_z
    displacements = 'disp_x disp_y disp_z'
    component = 2
  [../]
  [./poro_x]
    type = PoroMechanicsCoupling
    variable = disp_x
    porepressure = p
    component = 0
  [../]
  [./poro_y]
    type = PoroMechanicsCoupling
    variable = disp_y
    porepressure = p
    component = 1
  [../]
  [./poro_z]
    type = PoroMechanicsCoupling
    variable = disp_z
    porepressure = p
    component = 2
  [../]
  [./This_is_not_poroelasticity._It_is_checking_diagonal_jacobian]
    type = PoroMechanicsCoupling
    variable = disp_x
    porepressure = disp_x
    component = 0
  [../]
  [./This_is_not_poroelasticity._It_is_checking_diagonal_jacobian_again]
    type = PoroMechanicsCoupling
    variable = disp_x
    porepressure = disp_x
    component = 1
  [../]
  [./This_is_not_poroelasticity._It_is_checking_offdiagonal_jacobian_for_disps]
    type = PoroMechanicsCoupling
    variable = disp_x
    porepressure = disp_y
    component = 2
  [../]
[]


[Materials]
  [./elasticity_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '1 1'
    fill_method = symmetric_isotropic
  [../]
  [./strain]
    type = ComputeSmallStrain
    displacements = 'disp_x disp_y disp_z'
  [../]
  [./stress]
    type = ComputeLinearElasticStress
  [../]
  [./biot]
    type = GenericConstantMaterial
    prop_names = biot_coefficient
    prop_values = 0.54
  [../]
[]

[Preconditioning]
  [./andy]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = Newton
[]

(test/tests/outputs/csv/csv_restart_part1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./mid]
    type = PointValue
    variable = u
    point = '0.5 0.5 0'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  csv = true
  checkpoint = true
[]

(test/tests/multiapps/picard_multilevel/2level_picard/sub_level2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
[]

[Variables]
  [w]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [time_derivative]
    type = TimeDerivative
    variable = w
  []
  [diffusion]
    type = Diffusion
    variable = w
  []
  [source]
    type = CoupledForce
    variable = w
    v = v
  []
[]

[BCs]
  [dirichlet0]
    type = DirichletBC
    variable = w
    boundary = '3'
    value = 0
  []
  [dirichlet]
    type = DirichletBC
    variable = w
    boundary = '1'
    value = 100
  []
[]

[Postprocessors]
  [avg_v]
    type = ElementAverageValue
    variable = v
    execute_on = 'initial timestep_begin timestep_end'
  []
  [avg_w]
    type = ElementAverageValue
    variable = w
    execute_on = 'initial  timestep_begin timestep_end'
  []
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  end_time = 0.1
  dt = 0.02
[]


[Outputs]
  exodus = true
  [screen]
    type = Console
    execute_postprocessors_on= "timestep_end timestep_begin"
  []
[]

(test/tests/userobjects/layered_base_restartable/layered_base_restartable.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 5
  ny = 5
  nz = 5
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./np_layered_average]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./np_layered_average]
    type = SpatialUserObjectAux
    variable = np_layered_average
    execute_on = 'timestep_begin'
    user_object = npla
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 10
  [../]
  [./one]
    type = DirichletBC
    variable = u
    boundary = 'right back top'
    value = 12
  [../]
[]

[UserObjects]
  [./npla]
    type = NearestPointLayeredAverage
    direction = y
    points = '0.25 0 0.25 0.75 0 0.25 0.25 0 0.75 0.75 0 0.75'
    num_layers = 10
    variable = u
    execute_on = 'timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 8
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/dirackernels/point_caching/point_caching_moving_mesh.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 2
  ny = 2
  elem_type = QUAD4
  uniform_refine = 4

  # Mesh is dispaced by Aux variables computed by predetermined functions
  displacements = 'disp_x disp_y'
[]

[Functions]
  [disp_x_fn]
    type = ParsedFunction
    expression = t
  []

  [disp_y_fn]
    type = ParsedFunction
    expression = 0
  []
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[AuxVariables]
  [disp_x]
    order = FIRST
    family = LAGRANGE
  []

  [disp_y]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [time_derivative]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[AuxKernels]
  [disp_x_auxk]
    type = FunctionAux
    variable = disp_x
    function = disp_x_fn
    execute_on = 'INITIAL TIMESTEP_BEGIN'
  []

  [disp_y_auxk]
    type = FunctionAux
    variable = disp_y
    function = disp_y_fn
    execute_on = 'INITIAL TIMESTEP_BEGIN'
  []
[]

[DiracKernels]
  [point_source]
    type = CachingPointSource
    variable = u
    # This is appropriate for this test, since we want the Dirac
    # points to be found in elements on the displaced Mesh.
    use_displaced_mesh = true
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  []

  [right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  num_steps = 4
  dt = .1
[]

[Outputs]
  exodus = true
[]

(test/tests/controls/time_periods/multiapps/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '1. 0. 0.'
    input_files = sub.i
    execute_on = 'initial timestep_end'
    output_in_position = true
  [../]
[]

[Controls]
  [./multiapp]
    type = TimePeriod
    disable_objects = 'MultiApps::sub'
    start_time = '0'
    end_time = '0.25'
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/variables/get_elemental_value/get_elemental_value.i)

# Tests the getElementalValue function of MooseVariableFE.
#
# The tested aux copies the first elemental value of another variable. The
# setup is the following IVP:
#   du/dt = 1
#   u(0) = 0
# Therefore the solution is u(t) = t. Five time steps of dt = 1 are taken.
# The expected output for each time level is thus the following:
#   current: [0,1,2,3,4,5]
#   old:     [0,0,1,2,3,4]
#   older:   [0,0,0,1,2,3]

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 2
[]

[Variables]
  [./copied_var]
  [../]
[]

[AuxVariables]
  [./test_var]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./test_var_aux]
    type = GetElementalValueAux
    variable = test_var
    copied_variable = copied_var
    # The parameter "time_level" is provided by tests file
  [../]
[]

[ICs]
  [./copied_var_ic]
    type = ConstantIC
    variable = copied_var
    value = 0
  [../]
[]

[Kernels]
  [./time_der]
    type = TimeDerivative
    variable = copied_var
  [../]
  [./src]
    type = BodyForce
    variable = copied_var
    function = 1
  [../]
[]

[Executioner]
  type = Transient
  scheme = implicit-euler
  dt = 1
  num_steps = 5
  abort_on_solve_fail = true

  solve_type = NEWTON
[]

[Postprocessors]
  [./test_pp]
    type = ElementAverageValue
    variable = test_var
  [../]
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/multiple_position_files/sub1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/checkpoint/checkpoint_child.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
[]

(test/tests/multiapps/restart_multilevel/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 1
  nx = 10
[]

[Functions]
  [u_fn]
    type = ParsedFunction
    expression = t*x
  []
  [ffn]
    type = ParsedFunction
    expression = x
  []
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [fn]
    type = BodyForce
    variable = u
    function = ffn
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = u_fn
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    app_type = MooseTestApp
    type = TransientMultiApp
    input_files = 'subsub.i'
    execute_on = timestep_end
    positions = '0 -1 0'
  []
[]

[Transfers]
  [from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub_app
    source_variable = u
    variable = v
  []
[]

(test/tests/restart/restart_add_variable/transient_with_stateful.i)

# We run a simple problem (5 time steps and save off the solution)
# In part2, we load the solution and solve a steady problem. The test check, that the initial state in part 2 is the same as the last state from part1

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = -4+(x*x+y*y)
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./diffusivity]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./out_diffusivity]
    type = MaterialRealAux
    variable = diffusivity
    property = diffusivity
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = MatDiffusionTest
    variable = u
    prop_name = diffusivity
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Materials]
  [./mat]
    type = StatefulMaterial
    block = 0
    initial_diffusivity = 0.5
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  dt = 0.2
  start_time = 0
  num_steps = 5
[]

[Outputs]
  checkpoint = true
  [./out]
    type = Exodus
    elemental_as_nodal = true
    execute_elemental_on = none
  [../]
[]

(test/tests/multiapps/detect_steady_state/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
  xmax = 10
  ymax = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = sub.i
    sub_cycling = true
    steady_state_tol = 1e-5
    detect_steady_state = true
  [../]
[]

(tutorials/tutorial02_multiapps/step03_coupling/02_sub_picard.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [ut]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [force]
    type = CoupledForce
    variable = v
    v = ut
    coef = 100
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  nl_abs_tol = 1e-10

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Postprocessors]
  [average_v]
    type = ElementAverageValue
    variable = v
  []
[]

(modules/phase_field/test/tests/initial_conditions/CrossIC.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 25
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c_IC]
    type = CrossIC
    x1 = 0.0
    x2 = 50.0
    y1 = 0.0
    y2 = 50.0
    variable = c
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 2.0'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 15
  l_tol = 1.0e-4
  nl_max_its = 10
  nl_rel_tol = 1.0e-8

  start_time = 0.0
  num_steps = 2
  dt = 20.0
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/examples/multiapp_fracture_flow/fracture_diffusion/no_multiapp.i)

# A fracture, which is a 1D line of elements, is embedded in a matrix, which is a 2D surface of elements.
# The meshes conform: all fracture nodes are also matrix nodes (the fracture elements are sides of matrix elements).
# The overall mesh has two blocks, named "matrix" and "fracture".
#
# Two variables are defined:
# - frac_T, which is the temperature inside the fracture;
# - matrix_T, which is the temperature in the matrix.
# frac_T is governed by a diffusion equation along the 1D fracture.
# matrix_T is governed by a diffusion equation in the 2D matrix, with small diffusion coefficient.
# Heat is exchanged between the two systems via a heat-transfer coefficient, defined on the fracture subdomain, using two PorousFlowHeatMassTransfer Kernels
#
# If the mesh is too coarse, overshoots and undershoots in matrix_T can be observed.
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 20
    xmin = 0
    xmax = 10.0
    ny = 20 # anything less than this produces over/under-shoots
    ymin = -2
    ymax = 2
  []
  [matrix_subdomain]
    type = RenameBlockGenerator
    input = generate
    old_block = 0
    new_block = matrix
  []
  [fracture_sideset]
    type = ParsedGenerateSideset
    input = matrix_subdomain
    combinatorial_geometry = 'y>-1E-6 & y<1E-6'
    normal = '0 1 0'
    new_sideset_name = fracture_sideset
  []
  [fracture_subdomain]
    type = LowerDBlockFromSidesetGenerator
    input = fracture_sideset
    new_block_id = 1
    new_block_name = fracture
    sidesets = fracture_sideset
  []
[]

[Variables]
  [frac_T]
    block = fracture
  []
  [matrix_T]
    # Needs to be defined on both blocks, so PorousFlowHeatMassTransfer works appropriately
    # Kernels for diffusion are on block=matrix only
  []
[]

[BCs]
  [frac_T]
    type = DirichletBC
    variable = frac_T
    boundary = left
    value = 1
  []
[]

[Kernels]
  [dot_frac_T]
    type = CoefTimeDerivative
    Coefficient = 1E-2
    variable = frac_T
    block = fracture
  []
  [fracture_diffusion]
    type = AnisotropicDiffusion
    variable = frac_T
    tensor_coeff = '1E-2 0 0 0 1E-2 0 0 0 1E-2'
    block = fracture
  []
  [toMatrix]
    type = PorousFlowHeatMassTransfer
    block = fracture
    variable = frac_T
    v = matrix_T
    transfer_coefficient = 0.02
  []
  [dot_matrix_T]
    type = TimeDerivative
    variable = matrix_T
    block = matrix
  []
  [matrix_diffusion]
    type = AnisotropicDiffusion
    variable = matrix_T
    tensor_coeff = '1E-3 0 0 0 1E-3 0 0 0 1E-3'
    block = matrix
  []
  [fromFracture]
    type = PorousFlowHeatMassTransfer
    block = fracture
    variable = matrix_T
    v = frac_T
    transfer_coefficient = 0.02
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]

[VectorPostprocessors]
  [frac_T]
    type = NodalValueSampler
    block = fracture
    outputs = frac_T
    sort_by = x
    variable = frac_T
  []
[]

[Outputs]
  print_linear_residuals = false
  exodus = false
  [frac_T]
    type = CSV
    execute_on = FINAL
  []
[]

(test/tests/multiapps/picard_multilevel/picard_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [v2]
  []
[]

[Kernels]
  [diff_v]
    type = Diffusion
    variable = v
  []
  [coupled_force]
    type = CoupledForce
    variable = v
    v = v2
  []
  [td_v]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left_v]
    type = DirichletBC
    variable = v
    boundary = left
    value = 1
  []
  [right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 0
  []
[]

[Postprocessors]
  # Accumulate the number of times 'timestep_end' is reached
  # (which is an indicator of the number of Picard iterations)
  [cumulative_picard_its_pp]
    type = TestPostprocessor
    test_type = custom_execute_on
    execute_on = 'timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub2]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_sub2.i
    sub_cycling = true
    execute_on = timestep_end
  []
[]

[Transfers]
  [v2]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub2
    source_variable = v
    variable = v2
  []
[]

(modules/stochastic_tools/test/tests/samplers/AdaptiveImportanceSampler/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0.0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1.0
  []
[]

[Postprocessors]
  [average]
    type = ElementAverageValue
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

(modules/phase_field/test/tests/mobility_derivative/AC_mobility_derivative_coupled_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 10
  xmax = 50
  ymin = 25
  ymax = 50
[]

[Variables]
  [./op]
  [../]
  [./v]
  [../]
[]

[ICs]
  [./op_IC]
    type = SmoothCircleIC
    x1 = 25.0
    y1 = 25.0
    radius = 15.0
    invalue = 0.9
    outvalue = 0.1
    int_width = 3.0
    variable = op
  [../]
  [./v_IC]
    type = BoundingBoxIC
    x1 = 0.0
    x2 = 25.0
    y1 = 0.0
    y2 = 50.0
    inside = 1.0
    outside = 0.0
    variable = v
  [../]
[]

[Kernels]
  [./op_dot]
    type = TimeDerivative
    variable = op
  [../]
  [./op_bulk]
    type = AllenCahn
    variable = op
    f_name = F
    mob_name = L
    coupled_variables = v
  [../]
  [./op_interface]
    type = ACInterface
    variable = op
    kappa_name = 1
    mob_name = L
    coupled_variables = v
  [../]
  [./v_dot]
    type = TimeDerivative
    variable = v
  [../]
  [./v_diff]
    type = MatDiffusion
    variable = v
    diffusivity = 50.0
  [../]
[]

[Materials]
  [./consts]
    type = DerivativeParsedMaterial
    property_name  = L
    expression = 'l:=0.1+1*(v+op)^2; if(l<0.01, 0.01, l)'
    coupled_variables = 'op v'
    outputs = exodus
    output_properties = 'L dL/dop dL/dv'
    derivative_order = 2
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'op'
    expression = '2*op^2*(1-op)^2 - 0.2*op'
    derivative_order = 2
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'

  l_max_its = 15
  l_tol = 1.0e-4

  nl_max_its = 15
  nl_rel_tol = 1.0e-9

  start_time = 0.0
  num_steps = 10
  dt = 0.2
[]

[Outputs]
  time_step_interval = 5
  print_linear_residuals = false
  exodus = true
[]

(test/tests/kernels/adv_diff_reaction/adv_diff_reaction_transient_test.i)

[Mesh]
  dim              = 2
  file             = Mesh12.e
[]

[Variables]
  active = 'phi'

  [./phi]
    order  = SECOND
    family = LAGRANGE
  [../]

[]

[Kernels]

  active = 'trans advection diffusion source'

  [./trans]
    type     = TimeDerivative
    variable = phi
  [../]

  [./advection]
    type     = Advection0
    variable = phi
    Au       = 10.
    Bu       = -6.
    Cu       =  5.
    Av       = 10.
    Bv       =  8.
    Cv       = -1.
  [../]

  [./diffusion]
    type     = Diffusion0
    variable = phi
    Ak       = 10.
    Bk       = 0.1
    Ck       = 0.1
  [../]

  [./source]
    type     = ForcingFunctionXYZ0
    variable = phi
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
    Au       = 10.
    Bu       = -6.
    Cu       =  5.
    Av       = 10.
    Bv       =  8.
    Cv       = -1.
    Ak       = 10.
    Bk       = 0.1
    Ck       = 0.1
  [../]

[]

[BCs]

  active = 'btm_sca rgt_sca top_sca lft_sca'

  [./btm_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 1
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

  [./rgt_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 2
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

  [./top_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 3
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

  [./lft_sca]
    type     = DirichletBCfuncXYZ0
    variable = phi
    boundary = 4
    omega0   = 2.
    A0       = 1.
    B0       = 1.2
    C0       = 0.8
  [../]

[]

[Executioner]
  type                 = Transient #Steady
  scheme               = bdf2
  nl_rel_tol           = 1e-10

  solve_type = 'PJFNK'

  petsc_options_iname  = '-pc_factor_levels -pc_factor_mat_ordering_type'
  petsc_options_value  = '20 rcm'

  start_time      = 0.0
  end_time        = 1.
  num_steps       = 60000
  dt              = .2
  n_startup_steps = 0
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/dirackernels/bh_except02.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    mass_fraction_component = 1
    point_file = bh02.bh
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(test/tests/multiapps/sub_cycling/sub_negative.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  start_time = -1.0
  end_time = 0

  [TimeStepper]
    type = IterationAdaptiveDT
    cutback_factor = 0.666
    dt = 0.2
  []
[]

[Outputs]
  exodus = true
[]

(test/tests/dirackernels/nonlinear_source/nonlinear_source.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 2
  ny = 2
  elem_type = QUAD4
  uniform_refine = 4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./ddt_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ddt_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[DiracKernels]
  [./nonlinear_source]
    type = NonlinearSource
    variable = u
    coupled_var = v
    scale_factor = 1000
    point = '0.2 0.3 0'
  [../]
[]

[BCs]
  [./left_u]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right_u]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]

  [./left_v]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 1
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 0
  [../]
[]

[Preconditioning]
  [./precond]
    type = SMP
    # 'full = true' is required for computeOffDiagJacobian() to get
    # called.  If you comment this out, you should see that this test
    # requires more linear and nonlinear iterations.
    full = true

    # Added to test Jacobian contributions for Dirac Kernels
    # Options that do not seem to do anything for this problem? -snes_check_jacobian -snes_check_jacobian_view
    # petsc_options = '-snes_test_display' # print out all the matrix entries
    # petsc_options_iname = '-snes_type'
    # petsc_options_value = 'test'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON' # NEWTON provides a more stringent test of off-diagonal Jacobians
  num_steps = 5
  dt = 1
  dtmin = 1
  l_max_its = 100
  nl_max_its = 6
  nl_abs_tol = 1.e-13
[]

[Postprocessors]
  # A PointValue postprocessor at the Dirac point location
  [./point_value]
    type = PointValue
    variable = u
    point = '0.2 0.3 0'
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_scalar_to_auxscalar_transfer/to_sub/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmin = 0.0
  xmax = 1.0
  ymin = 0.0
  ymax = 1.0
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./b]
    family = SCALAR
    order = SIXTH
  [../]
[]

[Kernels]
  [./diffusion]
    type = Diffusion
    variable = u
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient
[]

[Outputs]
  hide = 'u'
  exodus = true
[]

(test/tests/postprocessors/relative_solution_difference_norm/test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  elem_type = QUAD4
[]

[Variables]
  [./u]
  [../]
[]

[Functions]
  [./ffn]
    type = ParsedFunction
    expression = '2 - t'
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./ffn]
    type = BodyForce
    variable = u
    function = ffn
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 1
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  [../]
[]

[Postprocessors]
  [./rsn]
    type = RelativeSolutionDifferenceNorm
    execute_on = TIMESTEP_END
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 2
[]

[Outputs]
  exodus = true
[]

(modules/solid_mechanics/test/tests/power_law_creep/ad_restart2.i)

# 1x1x1 unit cube with uniform pressure on top face

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [temp]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1000.0
  []
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = FINITE
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
    use_automatic_differentiation = true
  []
[]

[Functions]
  [top_pull]
    type = PiecewiseLinear
    x = '0 1'
    y = '1 1'
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = ADPressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
    function = top_pull
  []
  [u_bottom_fix]
    type = ADDirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = ADDirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = ADDirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ADComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
    constant_on = SUBDOMAIN
  []
  [radial_return_stress]
    type = ADComputeMultipleInelasticStress
    inelastic_models = 'power_law_creep'
  []
  [power_law_creep]
    type = ADPowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.6
  end_time = 1.0
  num_steps = 12
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

[Problem]
  restart_file_base = ad_restart1_out_cp/0006
  # temp has an initial condition despite the restart
  allow_initial_conditions_with_restart = true
[]

(test/tests/mesh/adapt_weight/adapt_weight_test.i)

[Mesh]
  type = GeneratedMesh
  nx = 2
  ny = 2
  dim = 2
  uniform_refine = 3
[]

[Variables]
  active = 'u v'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'udiff uconv uie vdiff vconv vie'

  [./udiff]
    type = Diffusion
    variable = u
  [../]

  [./uconv]
    type = Convection
    variable = u
    velocity = '10 1 0'
  [../]

  [./uie]
    type = TimeDerivative
    variable = u
  [../]

  [./vdiff]
    type = Diffusion
    variable = v
  [../]

  [./vconv]
    type = Convection
    variable = v
    velocity = '-10 1 0'
  [../]

  [./vie]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  active = 'uleft uright vleft vright'

  [./uleft]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./uright]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]

  [./vleft]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 1
  [../]

  [./vright]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 0
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 2
  dt = .1

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
    weight_names = 'u'
    weight_values = '1.0'
  [../]
[]

[Outputs]
  file_base = out
  exodus = true
[]

(test/tests/multiapps/reset/multilevel_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = multilevel_sub.i
    output_in_position = true
    reset_apps = 0
    reset_time = 0.05
  [../]
[]

(test/tests/auxkernels/element_aux_boundary/high_order_boundary_aux.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 4
    ny = 4
  []
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [real_property]
    family = MONOMIAL
    order = SECOND
  []
[]

[AuxKernels]
  [real_property]
    type = MaterialRealAux
    variable = real_property
    property = real_property
    boundary = '0 2'
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = 0
    value = 3
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  []
[]

[Materials]
  [boundary_mat]
    type = OutputTestMaterial
    boundary = '0 1 2 3'
    real_factor = 2
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/two_pipe_parent.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 3
    xmin = 0
    xmax = 5
    nx = 5

    ymin = 0
    ymax = 5
    ny = 5

    zmin = 0
    zmax = 5
    nz = 5
  []
  [./blocks]
    input = gen
    type = SubdomainBoundingBoxGenerator
    block_id = 1
    bottom_left = '1 1 0'
    top_right = '4 4 5'
  [../]
[]

[AuxVariables]
  [./from_sub_app_var]
    order = CONSTANT
    family = MONOMIAL
    block = 1
    initial_condition = 0
  [../]
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = front
    value = -1
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = back
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 5

  solve_type = 'NEWTON'
  l_tol = 1e-8
  nl_rel_tol = 1e-10
[]

[Outputs]
  exodus = true
  execute_on = final
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = two_pipe_sub.i
    app_type = MooseTestApp
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [layered_transfer_from_sub_app]
    type = MultiAppGeneralFieldUserObjectTransfer
    source_user_object = sub_app_uo
    variable = from_sub_app_var
    from_multi_app = sub_app
    # Bounding box checks miss the right locations because of mismatch of coordinates
    fixed_bounding_box_size = '100 100 100'
    from_app_must_contain_point = false
  []
[]

(python/peacock/tests/common/transient.i)

###########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of a "Transient" Executioner.
#
# @Requirement F1.10
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./dt]
    type = TimestepSize
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'

  # Preconditioned JFNK (default)
  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_transient
  exodus = true
[]

(modules/optimization/test/tests/executioners/transient_and_adjoint/multi_variable.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    xmax = 1
    ymax = 1
    nx = 10
    ny = 10
  []
[]

[Problem]
  nl_sys_names = 'nl0 adjoint'
[]

[Variables]
  [u]
  []
  [v]
  []
  [u_adjoint]
    solver_sys = adjoint
  []
  [v_adjoint]
    solver_sys = adjoint
  []
[]

[Kernels]
  [time_u]
    type = TimeDerivative
    variable = u
  []
  [time_v]
    type = TimeDerivative
    variable = v
  []
  [diff_u]
    type = Diffusion
    variable = u
  []
  [diff_v]
    type = Diffusion
    variable = v
  []
  [uv]
    type = CoupledForce
    variable = u
    v = v
    coef = 10
  []
  [vu]
    type = CoupledForce
    variable = v
    v = u
    coef = 1
  []
  [src_u]
    type = BodyForce
    variable = u
    value = 1
  []
  [src_u_adjoint]
    type = BodyForce
    variable = u_adjoint
    value = 0
  []
  [src_v_adjoint]
    type = BodyForce
    variable = v_adjoint
    value = 1
  []
[]

[BCs]
  [dirichlet_u]
    type = DirichletBC
    variable = u
    boundary = 'top right'
    value = 0
  []
  [dirichlet_v]
    type = DirichletBC
    variable = v
    boundary = 'top right'
    value = 0
  []
[]

[Executioner]
  type = TransientAndAdjoint
  forward_system = nl0
  adjoint_system = adjoint

  dt = 0.2
  num_steps = 5

  nl_rel_tol = 1e-12
  l_tol = 1e-12
[]

[Postprocessors]
  [u_avg]
    type = ElementAverageValue
    variable = u
    execute_on = 'TIMESTEP_END ADJOINT_TIMESTEP_END'
  []
  [u_adjoint_avg]
    type = ElementAverageValue
    variable = u_adjoint
    execute_on = ADJOINT_TIMESTEP_END
  []
  [v_avg]
    type = ElementAverageValue
    variable = v
    execute_on = 'TIMESTEP_END ADJOINT_TIMESTEP_END'
  []
  [v_adjoint_avg]
    type = ElementAverageValue
    variable = v_adjoint
    execute_on = ADJOINT_TIMESTEP_END
  []
  [u_inner_product]
    type = VariableInnerProduct
    variable = u
    second_variable = u_adjoint
    execute_on = ADJOINT_TIMESTEP_END
  []
  [v_inner_product]
    type = VariableInnerProduct
    variable = v
    second_variable = v_adjoint
    execute_on = ADJOINT_TIMESTEP_END
  []
[]

[Outputs]
  [forward]
    type = CSV
  []
  [adjoint]
    type = CSV
    execute_on = 'INITIAL ADJOINT_TIMESTEP_END'
  []
  [console]
    type = Console
    execute_postprocessors_on = 'INITIAL TIMESTEP_END ADJOINT_TIMESTEP_END'
  []
[]

(modules/phase_field/test/tests/initial_conditions/SmoothSuperellipsoidIC.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 25
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c]
    type = SmoothSuperellipsoidIC
    variable = c
    x1 = 25.0
    y1 = 25.0
    a = 8.0
    b = 12.0
    n = 3.5
    invalue = 1.0
    outvalue = -0.8
    int_width = 4.0
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'
  solve_type = 'NEWTON'

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-4
  nl_max_its = 40
  nl_rel_tol = 1e-9

  start_time = 0.0
  num_steps = 1
  dt = 2.0
[]

[Outputs]
  exodus = false
  [./out]
    type = Exodus
    refinements = 2
  [../]
[]

(test/tests/multiapps/picard_multilevel/multilevel_dt_rejection/picard_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [v2]
  []
  [v3]
  []
  [w]
  []
[]

[AuxKernels]
  [set_w]
    type = NormalizationAux
    variable = w
    source_variable = v
    normal_factor = 0.1
  []
[]

[Kernels]
  [diff_v]
    type = Diffusion
    variable = v
  []
  [coupled_force]
    type = CoupledForce
    variable = v
    v = v2
  []
  [coupled_force2]
    type = CoupledForce
    variable = v
    v = v3
  []
  [td_v]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = left
    function = func
  []
  [right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 0
  []
[]

[Functions]
  [func]
    type = ParsedFunction
    expression = 'if(t < 2.5, 1, 1 / t)'
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
  [parent_time]
    type = Receiver
    execute_on = 'timestep_end'
  []
  [parent_dt]
    type = Receiver
    execute_on = 'timestep_end'
  []
  [time]
    type = TimePostprocessor
    execute_on = 'timestep_end'
  []
  [dt]
    type = TimestepSize
    execute_on = 'timestep_end'
  []
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 2 # deliberately make it fail at 2 to test the time step rejection behavior
  nl_rel_tol = 1e-5 # loose enough to force multiple Picard iterations on this example
  l_tol = 1e-5 # loose enough to force multiple Picard iterations on this example
  fixed_point_rel_tol = 1e-8
  num_steps = 2
[]

[MultiApps]
  [sub2]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = picard_sub2.i
    execute_on = timestep_end
  []
[]

[Transfers]
  [v_to_v3]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub2
    source_variable = v
    variable = v3
  []
  [w]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub2
    source_variable = w
    variable = w
  []
  [time_to_sub]
    type = MultiAppPostprocessorTransfer
    from_postprocessor = time
    to_postprocessor = sub_time
    to_multi_app = sub2
  []
  [dt_to_sub]
    type = MultiAppPostprocessorTransfer
    from_postprocessor = dt
    to_postprocessor = sub_dt
    to_multi_app = sub2
  []
  [matser_time_to_sub]
    type = MultiAppPostprocessorTransfer
    from_postprocessor = time
    to_postprocessor = parent_time
    to_multi_app = sub2
  []
  [parent_dt_to_sub]
    type = MultiAppPostprocessorTransfer
    from_postprocessor = dt
    to_postprocessor = parent_dt
    to_multi_app = sub2
  []
[]

(modules/porous_flow/test/tests/jacobian/line_sink02.i)

# PorousFlowPolyLineSink with 2-phase, 3-components, with enthalpy, internal_energy, and thermal_conductivity
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 2
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph0_sp1]
  []
  [massfrac_ph1_sp0]
  []
  [massfrac_ph1_sp1]
  []
  [temp]
  []
[]


[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp ppwater ppgas massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
    number_fluid_phases = 2
    number_fluid_components = 3
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
  [dummy_outflow]
    type = PorousFlowSumQuantity
  []
[]

[ICs]
  [temp]
    type = RandomIC
    variable = temp
    min = 1
    max = 2
  []
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph0_sp1]
    type = RandomIC
    variable = massfrac_ph0_sp1
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp1]
    type = RandomIC
    variable = massfrac_ph1_sp1
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_temp]
    type = TimeDerivative
    variable = temp
  []
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m01]
    type = TimeDerivative
    variable = massfrac_ph0_sp1
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
  [dummy_m11]
    type = TimeDerivative
    variable = massfrac_ph1_sp1
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
    cv = 1.1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
    cv = 1.8
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
  [thermal_conductivity]
    type = PorousFlowThermalConductivityIdeal
    dry_thermal_conductivity = '0.1 0.2 0.3 0.2 0 0.1 0.3 0.1 0.1'
  []
[]

[DiracKernels]
  [dirac0]
    type = PorousFlowPolyLineSink
    fluid_phase = 0
    variable = ppwater
    point_file = one_point.bh
    line_length = 1
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-0.9 1.5'
    fluxes = '-1.1 2.2'
  []
  [dirac1]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = ppgas
    line_length = 1
    use_relative_permeability = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -2.2'
  []
  [dirac2]
    type = PorousFlowPolyLineSink
    fluid_phase = 0
    variable = massfrac_ph0_sp0
    line_length = 1.3
    use_mobility = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac3]
    type = PorousFlowPolyLineSink
    fluid_phase = 0
    variable = massfrac_ph0_sp1
    line_length = 1.3
    use_enthalpy = true
    mass_fraction_component = 0
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac4]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = massfrac_ph1_sp0
    function_of = temperature
    line_length = 0.9
    mass_fraction_component = 1
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac5]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = temp
    line_length = 0.9
    mass_fraction_component = 2
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac6]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = massfrac_ph0_sp0
    use_mobility = true
    function_of = temperature
    mass_fraction_component = 1
    use_relative_permeability = true
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '0 -0.2'
  []
[]

[Preconditioning]
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  file_base = line_sink02
[]

(test/tests/constraints/overwrite_variables/test_balance.i)

# Test to exemplify the use of overwriting of variables in the framework.
[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
  diffusivity = 1e3
  use_displaced_mesh = true
[]

[Mesh]
  [block_one]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 3
    ny = 3
    nz = 3
    xmin = 4.5
    xmax = 5.5
    ymin = 4.5
    ymax = 5.5
    zmin = 0.0001
    zmax = 1.0001
    boundary_name_prefix = 'ball'
  []
  [block_two]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 2
    ny = 2
    nz = 2
    xmin = 0.0
    xmax = 10
    ymin = 0.0
    ymax = 10
    zmin = -2
    zmax = 0
    boundary_name_prefix = 'base'
    boundary_id_offset = 10
  []
  [block_one_id]
    type = SubdomainIDGenerator
    input = block_one
    subdomain_id = 1
  []
  [block_two_id]
    type = SubdomainIDGenerator
    input = block_two
    subdomain_id = 2
  []
  [combine]
    type = MeshCollectionGenerator
    inputs = ' block_one_id block_two_id'
  []
  allow_renumbering = false
[]

[Problem]
  kernel_coverage_check = false
[]

[Variables]
  [disp_x]
  []
  [disp_y]
  []
  [disp_z]
  []
[]

[AuxVariables]
  [vel_x]
  []
  [accel_x]
  []
  [vel_y]
  []
  [accel_y]
  []
  [vel_z]
  []
  [accel_z]
  []
  [gap_rate]
  []
[]

[Kernels]
  [disp_x]
    type = MatDiffusion
    variable = disp_x
  []
  [disp_y]
    type = MatDiffusion
    variable = disp_y
  []
  [disp_z]
    type = MatDiffusion
    variable = disp_z
  []
  [vel_x]
    type = TimeDerivative
    variable = disp_x
  []
  [vel_y]
    type = TimeDerivative
    variable = disp_y
  []
  [vel_z]
    type = TimeDerivative
    variable = disp_z
  []
  [source_m]
    type = BodyForce
    variable = disp_z
    value = -100
  []
[]

[BCs]
  [x_front]
    type = DirichletBC
    variable = disp_x
    boundary = 'ball_front'
    preset = false
    value = 0.0
  []
  [y_front]
    type = DirichletBC
    variable = disp_y
    boundary = 'ball_front'
    preset = false
    value = 0.0
  []
  [x_fixed]
    type = DirichletBC
    variable = disp_x
    boundary = 'base_back'
    value = 0.0
    preset = true
  []
  [y_fixed]
    type = DirichletBC
    variable = disp_y
    boundary = 'base_back'
    value = 0.0
    preset = true
  []
  [z_fixed]
    type = DirichletBC
    variable = disp_z
    boundary = 'base_back'
    value = 0.0
    preset = true
  []
  [z_fixed_front]
    type = DirichletBC
    variable = disp_z
    boundary = 'base_front'
    value = 0.0
    preset = true
  []
[]

[Constraints]
  [overwrite]
    type = ExplicitDynamicsOverwrite
    model = frictionless_balance
    primary = base_front
    secondary = ball_back
    vel_x = 'vel_x'
    vel_y = 'vel_y'
    vel_z = 'vel_z'
    primary_variable = disp_x
    boundary = 'base_front'
    component = 0
    variable = disp_x
    gap_rate = gap_rate
  []
[]

[Materials]
  [density_one]
    type = GenericConstantMaterial
    prop_names = density
    prop_values = 1e5
    outputs = 'exodus'
    output_properties = 'density'
    block = '1'
  []
  [density_two]
    type = GenericConstantMaterial
    prop_names = density
    prop_values = 1e5
    outputs = 'exodus'
    output_properties = 'density'
    block = '2'
  []
[]

[Executioner]
  type = Transient
  start_time = -0.01
  end_time = -0.008
  dt = 1.0e-5
  timestep_tolerance = 1e-6

  [TimeIntegrator]
    type = CentralDifference
    solve_type = lumped
  []
[]

[Outputs]
  interval = 50
  exodus = true
  csv = true
[]

[Postprocessors]
[]

(test/tests/postprocessors/element_variable_value/elemental_variable_value.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 1
  ymax = 0.1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 1
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 10
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [./elem_left]
    type = ElementalVariableValue
    variable = u
    elementid = 0
  []
  [./elem_right]
    type = ElementalVariableValue
    variable = u
    elementid = 9
  []
[]

[Outputs]
  csv = true
[]

(test/tests/functions/piecewise_multilinear/twoD_const.i)

# PiecewiseMultilinear function tests in 2D
# See [Functions] block for a description of the tests
# The functions are compared with ParsedFunctions using postprocessors

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 2
  nx = 4
  ymin = -1
  ymax =  1
  ny = 4
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./constant]
    family = MONOMIAL
    order = CONSTANT
  [../]

  [./constant_ref]
    family = MONOMIAL
    order = CONSTANT
  [../]

  [./diff]
    family = MONOMIAL
    order = CONSTANT
  [../]
[]

[AuxKernels]
  [./const_AuxK]
    type = FunctionAux
    variable = constant
    function = const_fcn
  [../]

  [./const_ref_AuxK]
    type = FunctionAux
    variable = constant_ref
    function = const_ref
  [../]

  [./diff]
    type = ParsedAux
    variable = diff
    expression = 'constant - constant_ref'
    coupled_variables = 'constant constant_ref'
  [../]
[]


[Functions]
  [./const_fcn]
    type = PiecewiseMulticonstant
    direction = 'left right'
    data_file = twoD_const.txt
  [../]

  [./const_ref]
    type = ParsedFunction
    expression = '
            ix := if(x < 0.5, 0, if(x < 1, 1, 2));
            iy := if(y > 0, 2, if(y > -0.5, 1, 0));
            iy * 3 + ix
            '
  [../]
[]


[Postprocessors]
  [./diff_pp]
    type = ElementIntegralVariablePostprocessor
    variable = diff
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = twoD_const
  hide = dummy
  exodus = true
[]

(modules/porous_flow/test/tests/jacobian/hfrompps.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 1
  ny = 1
[]

[Variables]
  [pressure]
  []

  [temperature]
  []
[]

[ICs]
  [pressure_ic]
    type = ConstantIC
    variable = pressure
    value = 1
  []
  [temperature_ic]
    type = ConstantIC
    variable = temperature
    value = 4
  []
[]

[Kernels]
  [p_td]
    type = TimeDerivative
    variable = pressure
  []

  [energy_dot]
    type = TimeDerivative
    variable = temperature
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    density0 = 1000
    thermal_expansion = 0
  []
[]

[DiracKernels]
  [source_h]
    type = PorousFlowPointEnthalpySourceFromPostprocessor
    variable = temperature
    mass_flux = mass_flux_in
    point = '0.5 0.5 0'
    T_in = T_in
    pressure = pressure
    fp = simple_fluid
  []
[]

[Preconditioning]
  [preferred]
    type = SMP
    full = true
    petsc_options_iname = '-pc_type -snes_test_err'
    petsc_options_value = ' lu      1e-6'
  []
[]

[Postprocessors]
  [mass_flux_in]
    type = FunctionValuePostprocessor
    function = 1
    execute_on = 'initial timestep_end'
  []

  [T_in]
    type = FunctionValuePostprocessor
    function = 1
    execute_on = 'initial timestep_end'
  []
[]


[Executioner]
  type = Transient
  solve_type = Newton
  nl_abs_tol = 1e-14
  dt = 1
  num_steps = 1
[]

(test/tests/controls/time_periods/multiapps/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
    initial_condition = 1
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.2
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 1
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 2
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0.3 # set to match start time of MultiApp in parent
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/solid_mechanics/test/tests/power_law_creep/cp_power_law_creep.i)

# 1x1x1 unit cube with uniform pressure on top face

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [temp]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1000.0
  []
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = FINITE
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
  []
[]

[Functions]
  [top_pull]
    type = PiecewiseLinear
    x = '0 1'
    y = '1 1'
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = Pressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
    function = top_pull
  []
  [u_bottom_fix]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = DirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
  []
  [radial_return_stress]
    type = ComputeCreepPlasticityStress
    creep_model = power_law_creep
    plasticity_model = isotropic_plasticity
    tangent_operator = elastic
  []
  [power_law_creep]
    type = PowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
  [isotropic_plasticity]
    type = IsotropicPlasticityStressUpdate
    yield_stress = 1e30
    hardening_constant = 0.0
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.0
  end_time = 1.0
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(test/tests/controls/output/controllable_clear.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  elem_type = QUAD4
  uniform_refine = 4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[DiracKernels]
  [./test_object]
    type = MaterialPointSource
    point = '0.5 0.5 0'
    variable = u
  [../]
[]

[Materials]
  [./mat]
    type = GenericConstantMaterial
    prop_names = 'matp'
    prop_values = '1'
    block = 0
  [../]
[]

[Postprocessors]
  [./test_object]
    type = FunctionValuePostprocessor
    function = '2*(x+y)'
    point = '0.5 0.5 0'
  [../]
  [./other_point_test_object]
    type = FunctionValuePostprocessor
    function = '3*(x+y)'
    point = '0.5 0.5 0'
  [../]
[]

[Outputs]
  controls = true
[]

[Controls]
  [./point_control]
    type = TestControl
    test_type = 'point'
    parameter = '*/*/point'
    execute_on = 'initial'
  [../]
[]

(modules/navier_stokes/test/tests/finite_element/ins/RZ_cone/unstabilized-velocity-component-objects.i)

[Mesh]
  file = '2d_cone.msh'
  coord_type = RZ
[]

[Variables]
  [vel_x]
    order = SECOND
  []
  [vel_y]
    order = SECOND
  []
  [p][]
[]

[Kernels]
  [momentum_x_time]
    type = TimeDerivative
    variable = vel_x
  []
  [momentum_x_convection]
    type = ADAdvection
    variable = vel_x
    velocity = 'velocity'
  []
  [momentum_x_diffusion]
    type = MatDiffusion
    variable = vel_x
    diffusivity = 1
  []
  [momentum_x_diffusion_rz]
    type = ADMomentumViscousRZ
    variable = vel_x
    mu_name = 1
    component = 0
  []
  [momentum_x_pressure]
    type = PressureGradient
    integrate_p_by_parts = true
    variable = vel_x
    pressure = p
    component = 0
  []
  [momentum_y_time]
    type = TimeDerivative
    variable = vel_y
  []
  [momentum_y_convection]
    type = ADAdvection
    variable = vel_y
    velocity = 'velocity'
  []
  [momentum_y_diffusion]
    type = MatDiffusion
    variable = vel_y
    diffusivity = 1
  []
  [momentum_y_diffusion_rz]
    type = ADMomentumViscousRZ
    variable = vel_y
    mu_name = 1
    component = 1
  []
  [momentum_y_pressure]
    type = PressureGradient
    integrate_p_by_parts = true
    variable = vel_y
    pressure = p
    component = 1
  []
  [mass]
    type = ADMassAdvection
    variable = p
    vel_x = vel_x
    vel_y = vel_y
  []
[]

[BCs]
  [u_in]
    type = DirichletBC
    boundary = bottom
    variable = vel_x
    value = 0
  []
  [v_in]
    type = FunctionDirichletBC
    boundary = bottom
    variable = vel_y
    function = 'inlet_func'
  []
  [u_axis_and_walls]
    type = DirichletBC
    boundary = 'left right'
    variable = vel_x
    value = 0
  []
  [v_no_slip]
    type = DirichletBC
    boundary = 'right'
    variable = vel_y
    value = 0
  []
[]

[Materials]
  [vel]
    type = ADVectorFromComponentVariablesMaterial
    vector_prop_name = 'velocity'
    u = vel_x
    v = vel_y
  []
[]

[Functions]
  [inlet_func]
    type = ParsedFunction
    expression = '-4 * x^2 + 1'
  []
[]

[Executioner]
  type = Transient
  dt = 0.005
  dtmin = 0.005
  num_steps = 5
  l_max_its = 100

  petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_levels'
  petsc_options_value = 'bjacobi  ilu          4'

  nl_rel_tol = 1e-12
  nl_max_its = 6
[]

[Outputs]
  exodus = true
[]

(test/tests/functions/piecewise_multilinear/twoDa.i)

# PiecewiseMultilinear function tests in 2D
# See [Functions] block for a description of the tests
# The functions are compared with ParsedFunctions using postprocessors

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  nx = 6
  ymin = 0
  ymax = 1
  ny = 6
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./bilinear1_var]
  [../]
[]

[AuxKernels]
  [./bilinear1_AuxK]
    type = FunctionAux
    variable = bilinear1_var
    function = bilinear1_fcn
  [../]
[]


[Functions]
# This is just f = 1 + 2x + 3y
  [./bilinear1_fcn]
    type = PiecewiseMultilinear
    data_file = twoD1.txt
  [../]
  [./bilinear1_answer]
    type = ParsedFunction
    expression = 1+2*x+3*y
  [../]
[]

[Postprocessors]
  [./bilinear1_pp]
    type = NodalL2Error
    function = bilinear1_answer
    variable = bilinear1_var
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = twoDa
  hide = dummy
  csv = true
[]

(test/tests/postprocessors/pps_interval/pps_bad_interval2.i)

[Mesh]
  file = square-2x2-nodeids.e
  # This test can only be run with renumering disabled, so the
  # NodalVariableValue postprocessor's node id is well-defined.
  allow_renumbering = false
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '1'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '2'
    value = 0
  [../]
[]

[Postprocessors]
  active = 'l2 node1 node4'

  [./l2]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./node1]
    type = NodalVariableValue
    variable = u
    nodeid = 15
  [../]

  [./node4]
    type = NodalVariableValue
    variable = v
    nodeid = 10
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 1
[]

[Outputs]
  file_base = ignore_bad
  exodus = true
  [./console]
    type = Console
    time_step_interval = 2
  [../]
[]

(test/tests/tag/controls-tagging.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 5
  ny = 5
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[Controls]
  [doff]
    type = TimePeriod
    enable_objects = 'DiracKernel::point_source'
    disable_objects = 'DiracKernel::point_source2'
    start_time = 0
    end_time = 2
  []
[]

[DiracKernels]
  [./point_source]
    type = FunctionDiracSource
    variable = u
    function = 1
    point = '0.3 0.3 0.0'
  [../]
  [./point_source2]
    type = FunctionDiracSource
    variable = u
    function = 1
    point = '-0.3 -0.3 0.0'
  [../]
[]

[BCs]
  [./external]
    type = NeumannBC
    variable = u
    boundary = '0 1 2 3'
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 1
  l_tol = 1e-03
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/grid-sequencing/fine.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 40
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [rxn]
    type = Reaction
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 1

  solve_type = 'PJFNK'
  petsc_options = '-snes_monitor_solution'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [coarse]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_begin
    positions = '0 0 0'
    input_files = coarse.i
  []
[]

[Transfers]
  [mesh_function_begin]
    type = MultiAppGeneralFieldShapeEvaluationTransfer
    from_multi_app = coarse
    source_variable = u
    variable = u
    execute_on = timestep_begin
  []
[]

(modules/phase_field/test/tests/KKS_system/kks_example_split.i)

#
# KKS toy problem in the split form
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmin = -2.5
  xmax = 2.5
  ymin = -2.5
  ymax = 2.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[AuxVariables]
  [./Fglobal]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Variables]
  # order parameter
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]

  # hydrogen concentration
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]

  # chemical potential
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]

  # hydrogen phase concentration (matrix)
  [./cm]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
  # hydrogen phase concentration (delta phase)
  [./cd]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
[]

[ICs]
  [./eta]
    variable = eta
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 0.2
    outvalue = 0.1
    int_width = 0.75
  [../]
  [./c]
    variable = c
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 0.6
    outvalue = 0.4
    int_width = 0.75
  [../]
[]


[BCs]
  [./Periodic]
    [./all]
      variable = 'eta w c cm cd'
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  # Free energy of the matrix
  [./fm]
    type = DerivativeParsedMaterial
    property_name = fm
    coupled_variables = 'cm'
    expression = '(0.1-cm)^2'
  [../]

  # Free energy of the delta phase
  [./fd]
    type = DerivativeParsedMaterial
    property_name = fd
    coupled_variables = 'cd'
    expression = '(0.9-cd)^2'
  [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   kappa'
    prop_values = '0.7 0.7 0.4  '
  [../]
[]

[Kernels]
  # full transient
  active = 'PhaseConc ChemPotVacancies CHBulk ACBulkF ACBulkC ACInterface dcdt detadt ckernel'

  # enforce c = (1-h(eta))*cm + h(eta)*cd
  [./PhaseConc]
    type = KKSPhaseConcentration
    ca       = cm
    variable = cd
    c        = c
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotVacancies]
    type = KKSPhaseChemicalPotential
    variable = cm
    cb       = cd
    fa_name  = fm
    fb_name  = fd
  [../]

  #
  # Cahn-Hilliard Equation
  #
  [./CHBulk]
    type = KKSSplitCHCRes
    variable = c
    ca       = cm
    fa_name  = fm
    w        = w
  [../]

  [./dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  [../]

  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = fm
    fb_name  = fd
    coupled_variables     = 'cm cd'
    w        = 0.4
  [../]
  [./ACBulkC]
    type = KKSACBulkC
    variable = eta
    ca       = cm
    cb       = cd
    fa_name  = fm
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[AuxKernels]
  [./GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fm
    fb_name = fd
    w = 0.4
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type -pc_factor_shift_type'
  petsc_options_value = ' asm    lu          nonzero                    nonzero'

  l_max_its = 100
  nl_max_its = 100
  num_steps = 3

  dt = 0.1
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]


[Outputs]
  file_base = kks_example_split
  exodus = true
[]

(modules/stochastic_tools/test/tests/multiapps/dynamic_sub_app_number/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [center]
    type = PointValue
    variable = u
    point = '0.5 0 0'
  []
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

(test/tests/meshgenerators/distributed_rectilinear/generator/distributed_rectilinear_mesh_generator_adaptivity.i)

[Mesh]
  [gmg]
    type = DistributedRectilinearMeshGenerator
    dim = 2
    nx = 10
    ny = 10
  []
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  initial_steps = 2
  steps = 1
  marker = marker
  initial_marker = marker
  max_h_level = 2
  [./Indicators]
    [./indicator]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./marker]
      type = ErrorFractionMarker
      indicator = indicator
      coarsen = 0.1
      refine = 0.7
    [../]
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/application_block_multiapps/application_block_unregistered_sub.i)

[Application]
  type = DummyApp
[]

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/perf_graph/multi_app/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  uniform_refine = 2
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  perf_graph = true
[]

(test/tests/time_steppers/constant_dt_regrowth/constant_dt_regrowth.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = FailingProblem
  fail_steps = '3'
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialSintering_test.i)

#input file to test the materials GrandPotentialTensorMaterial

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 17
  ny = 17
  xmin = 0
  xmax = 680
  ymin = 0
  ymax = 680
  uniform_refine = 1
[]

[GlobalParams]
  op_num = 4
  var_name_base = gr
  int_width = 40
[]

[Variables]
  [./w]
  [../]
  [./phi]
  [../]
  [./PolycrystalVariables]
  [../]
[]

[AuxVariables]
  [./bnds]
  [../]
  [./T]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./F_loc]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[ICs]
  [./phi_IC]
    type = SpecifiedSmoothCircleIC
    variable = phi
    x_positions = '190 490 190 490'
    y_positions = '190 190 490 490'
    z_positions = '  0   0   0   0'
    radii = '150 150 150 150'
    invalue = 0
    outvalue = 1
  [../]
  [./gr0_IC]
    type = SmoothCircleIC
    variable = gr0
    x1 = 190
    y1 = 190
    z1 = 0
    radius = 150
    invalue = 1
    outvalue = 0
  [../]
  [./gr1_IC]
    type = SmoothCircleIC
    variable = gr1
    x1 = 490
    y1 = 190
    z1 = 0
    radius = 150
    invalue = 1
    outvalue = 0
  [../]
  [./gr2_IC]
    type = SmoothCircleIC
    variable = gr2
    x1 = 190
    y1 = 490
    z1 = 0
    radius = 150
    invalue = 1
    outvalue = 0
  [../]
  [./gr3_IC]
    type = SmoothCircleIC
    variable = gr3
    x1 = 490
    y1 = 490
    z1 = 0
    radius = 150
    invalue = 1
    outvalue = 0
  [../]
[]

[Functions]
  [./f_T]
    type = ConstantFunction
    value = 1600
  [../]
[]

[Materials]
  # Free energy coefficients for parabolic curves
  [./ks]
    type = ParsedMaterial
    property_name = ks
    coupled_variables = 'T'
    constant_names = 'a b'
    constant_expressions = '-0.0025 157.16'
    expression = 'a*T + b'
  [../]
  [./kv]
    type = ParsedMaterial
    property_name = kv
    material_property_names = 'ks'
    expression = '10*ks'
  [../]
  # Diffusivity and mobilities
  [./chiD]
    type = GrandPotentialTensorMaterial
    f_name = chiD
    solid_mobility = L
    void_mobility = Lv
    chi = chi
    surface_energy = 19.7
    c = phi
    T = T
    D0 = 2.0e11
    GBmob0 = 1.4759e9
    Q = 2.77
    Em = 2.40
    bulkindex = 1
    gbindex = 20
    surfindex = 100
    outputs = exodus
  [../]
  # Equilibrium vacancy concentration
  [./cs_eq]
    type = DerivativeParsedMaterial
    property_name = cs_eq
    coupled_variables = 'gr0 gr1 gr2 gr3 T'
    constant_names = 'Ef c_GB kB'
    constant_expressions = '2.69 0.189 8.617343e-5'
    expression = 'bnds:=gr0^2 + gr1^2 + gr2^2 + gr3^2; exp(-Ef/kB/T) + 4.0 * c_GB * (1 - bnds)^2'
  [../]
  # Everything else
  [./sintering]
    type = GrandPotentialSinteringMaterial
    chemical_potential = w
    void_op = phi
    Temperature = T
    surface_energy = 19.7
    grainboundary_energy = 9.86
    void_energy_coefficient = kv
    solid_energy_coefficient = ks
    equilibrium_vacancy_concentration = cs_eq
    solid_energy_model = PARABOLIC
  [../]

  # Concentration is only meant for output
  [./c]
    type = ParsedMaterial
    property_name = c
    material_property_names = 'hs rhos hv rhov'
    constant_names = 'Va'
    constant_expressions = '0.04092'
    expression = 'Va*(hs*rhos + hv*rhov)'
    outputs = exodus
  [../]
  [./f_bulk]
    type = ParsedMaterial
    property_name = f_bulk
    coupled_variables = 'phi gr0 gr1 gr2 gr3'
    material_property_names = 'mu gamma'
    expression = 'mu*(phi^4/4-phi^2/2 + gr0^4/4-gr0^2/2 + gr1^4/4-gr1^2/2
                  + gr2^4/4-gr2^2/2 + gr3^4/4-gr3^2/2
                  + gamma*(phi^2*(gr0^2+gr1^2+gr2^2+gr3^2) + gr0^2*(gr1^2+gr2^2+gr3^2)
                  + gr1^2*(gr2^2 + gr3^2) + gr2^2*gr3^2) + 0.25)'
    outputs = exodus
  [../]
  [./f_switch]
    type = ParsedMaterial
    property_name = f_switch
    coupled_variables = 'w'
    material_property_names = 'chi'
    expression = '0.5*w^2*chi'
    outputs = exodus
  [../]
  [./f0]
    type = ParsedMaterial
    property_name = f0
    material_property_names = 'f_bulk f_switch'
    expression = 'f_bulk + f_switch'
  [../]
[]

[Kernels]
  [./dt_gr0]
    type = TimeDerivative
    variable = gr0
  [../]
  [./dt_gr1]
    type = TimeDerivative
    variable = gr1
  [../]
  [./dt_gr2]
    type = TimeDerivative
    variable = gr2
  [../]
  [./dt_gr3]
    type = TimeDerivative
    variable = gr3
  [../]
  [./dt_phi]
    type = TimeDerivative
    variable = phi
  [../]
  [./dt_w]
    type = TimeDerivative
    variable = w
  [../]
[]

[AuxKernels]
  [./bnds_aux]
    type = BndsCalcAux
    variable = bnds
    execute_on = 'initial timestep_end'
  [../]
  [./T_aux]
    type = FunctionAux
    variable = T
    function = f_T
  [../]
  [./F_aux]
    type = TotalFreeEnergy
    variable = F_loc
    f_name = f0
    interfacial_vars = 'phi gr0 gr1 gr2 gr3'
    kappa_names = 'kappa kappa kappa kappa kappa'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = JFNK
  dt = 1
  num_steps = 1
[]

[Outputs]
  exodus = true
[]

(test/tests/time_steppers/dt2/dt2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
  elem_type = QUAD4
[]

[GlobalParams]
  slope = 1
  t_jump = 2
[]

[Functions]
  active = 'u_func'

  [./u_func]
    type = ParsedFunction
    expression = 'atan((t-2)*pi)'   # atan((t-t_jump)*pi*slope) - has to match global params above

  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = TEIC
    [../]
  [../]
[]

[Kernels]
  active = 'td diff ffn'

  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = TEJumpFFN
    variable = u
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = TEJumpBC
    variable = u
    boundary = '0 1 2 3'
  [../]
[]

[Postprocessors]
  active = 'dt l2'

  [./dt]
    type = TimestepSize
  [../]

  [./l2]
    type = ElementL2Error
    variable = u
    function = u_func
  [../]
[]

[Executioner]
  type = Transient


  solve_type = 'PJFNK'

  nl_rel_tol = 1e-7
#  l_tol = 1e-5

  start_time = 0.0
  end_time = 5
  num_steps = 500000
  dtmax = 0.25

  [./TimeStepper]
    type = DT2
    dt = 0.1
    e_max = 3e-1
    e_tol = 1e-1
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/outputs/intervals/minimum_time_interval.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 2
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [dt]
    type = TimestepSize
  []
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  [out]
    type = CSV
    minimum_time_interval = 0.21
  []
[]

(tutorials/tutorial02_multiapps/step02_transfers/01_parent_meshfunction.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [tv]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = '01_sub_meshfunction.i'
  []
[]

[Transfers]
  [pull_v]
    type = MultiAppShapeEvaluationTransfer

    # Transfer from the sub-app to this app
    from_multi_app = sub_app

    # The name of the variable in the sub-app
    source_variable = v

    # The name of the auxiliary variable in this app
    variable = tv
  []

  [push_u]
    type = MultiAppShapeEvaluationTransfer

    # Transfer to the sub-app from this app
    to_multi_app = sub_app

    # The name of the variable in this app
    source_variable = u

    # The name of the auxiliary variable in the sub-app
    variable = tu
  []
[]

(test/tests/multiapps/catch_up/failing_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = FailingProblem
  fail_steps = '2'
[../]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1 # This will be constrained by the parent solve

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/jacobian/pls02.i)

# PorousFlowPiecewiseLinearSink with 2-phase, 2-components
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 3
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph1_sp0]
  []
[]


[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'ppwater ppgas massfrac_ph0_sp0 massfrac_ph1_sp0'
    number_fluid_phases = 2
    number_fluid_components = 2
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
[]

[ICs]
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph1_sp0'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
[]

[BCs]
  [flux_w]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'left'
    pt_vals = '-1 -0.5 0'
    multipliers = '1 2 4'
    variable = ppwater
    mass_fraction_component = 0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
    flux_function = 'x*y'
  []
  [flux_g]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'top'
    pt_vals = '0 0.5 1'
    multipliers = '1 -2 4'
    mass_fraction_component = 0
    variable = ppgas
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-x*y'
  []
  [flux_1]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'right'
    pt_vals = '0 0.5 1'
    multipliers = '1 3 4'
    mass_fraction_component = 1
    variable = massfrac_ph0_sp0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
  []
  [flux_2]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'back top'
    pt_vals = '0 0.5 1'
    multipliers = '0 1 -3'
    mass_fraction_component = 1
    variable = massfrac_ph1_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '0.5*x*y'
  []
[]

[Preconditioning]
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 2
[]

[Outputs]
  file_base = pls02
[]

(test/tests/time_steppers/iteration_adaptive/adapt_tstep_grow_dtfunc_restart.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
[]

[Executioner]
  type = Transient
  end_time = 20.0
  verbose = true

  [TimeStepper]
    type = IterationAdaptiveDT
    dt = 1.0
    optimal_iterations = 10
    time_t = '0.0 5.0'
    time_dt = '1.0 5.0'
  []
[]

[Postprocessors]
  [_dt]
    type = TimestepSize
  []
[]

[Outputs]
  csv = true
  checkpoint = false
[]

[Problem]
  restart_file_base=adapt_tstep_grow_dtfunc_ckp_cp/0003
[]

(modules/optimization/examples/materialTransient/forward.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    xmax = 1
    ymax = 1
    nx = 10
    ny = 10
  []
[]

[Variables/u]
  initial_condition = 0
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = MatDiffusion
    variable = u
    diffusivity = D
  []
  [src]
    type = BodyForce
    variable = u
    value = 1
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = u
    boundary = 'right top'
    value = 0
  []
[]

[Materials]
  [diffc]
    type = GenericFunctionMaterial
    prop_names = 'D'
    prop_values = 'diffc_fun'
    output_properties = 'D'
    outputs = 'exodus'
  []
[]

[Functions]
  [diffc_fun]
    type = NearestReporterCoordinatesFunction
    value_name = 'diffc_rep/D_vals'
    x_coord_name = 'diffc_rep/D_x_coord'
    y_coord_name = 'diffc_rep/D_y_coord'
  []
[]

[Reporters]
  [diffc_rep]
    type = ConstantReporter
    real_vector_names = 'D_x_coord D_y_coord D_vals'
    real_vector_values = '0.25 0.75 0.25 0.75;
                          0.25 0.25 0.75 0.75;
                          1  0.2   0.2   0.05' # Reference solution
    outputs = none
  []
  [data]
    type = OptimizationData
    variable = u
    measurement_points = '0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0
                          0.25 0.25 0  0.25 0.75 0  0.75 0.25 0  0.75 0.75 0'
    measurement_times = '0.1 0.1 0.1 0.1
                         0.2 0.2 0.2 0.2
                         0.3 0.3 0.3 0.3
                         0.4 0.4 0.4 0.4
                         0.5 0.5 0.5 0.5
                         0.6 0.6 0.6 0.6
                         0.7 0.7 0.7 0.7
                         0.8 0.8 0.8 0.8
                         0.9 0.9 0.9 0.9
                         1.0 1.0 1.0 1.0'
    measurement_values = '0 0 0 0
                          0 0 0 0
                          0 0 0 0
                          0 0 0 0
                          0 0 0 0
                          0 0 0 0
                          0 0 0 0
                          0 0 0 0
                          0 0 0 0
                          0 0 0 0'
    objective_name = objective_value
    outputs = none
  []
[]

[Postprocessors]
  [D1]
    type = PointValue
    variable = D
    point = '0.25 0.25 0'
  []
  [D2]
    type = PointValue
    variable = D
    point = '0.75 0.25 0'
  []
  [D3]
    type = PointValue
    variable = D
    point = '0.25 0.75 0'
  []
  [D4]
    type = PointValue
    variable = D
    point = '0.75 0.75 0'
  []
[]

[Executioner]
  type = Transient

  solve_type = NEWTON
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-12

  dt = 0.1
  num_steps = 10
[]

[Outputs]
  csv = true
  exodus = true
[]

(test/tests/outputs/perf_graph/multi_app/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  perf_graph = true
[]

[MultiApps]
  [./sub_app]
    positions = '0 0 0'
    type = TransientMultiApp
    input_files = 'sub.i'
    app_type = MooseTestApp
  [../]
[]

(test/tests/dampers/min_damping/min_elem_damping.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./u_dt]
    type = TimeDerivative
    variable = u
  [../]
  [./u_source]
    type = BodyForce
    variable = u
    value = 1
  [../]
[]

[BCs]
  [./u_left]
    type = DirichletBC
    boundary = left
    variable = u
    value = 0.0
  [../]
[]

[Dampers]
  [./limit]
    type = BoundingValueElementDamper
    variable = u
    max_value = 1.5
    min_value = -1.5
    min_damping = 0.001
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
[]

[Postprocessors]
  [./u_avg]
    type = ElementAverageValue
    variable = u
  [../]
  [./dt]
    type = TimestepSize
  [../]
[]

(test/tests/multiapps/restart_subapp_ic/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  ymin = 0
  xmax = 1
  ymax = 1
  nx = 10
  ny = 10
[]

[Functions]
  [v_fn]
    type = ParsedFunction
    expression = t*x
  []
  [ffn]
    type = ParsedFunction
    expression = x
  []
[]

[AuxVariables]
  [v]
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [ufn]
    type = BodyForce
    variable = u
    function = ffn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = v_fn
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
  checkpoint = true
[]

[MultiApps]
  [sub_app]
    app_type = MooseTestApp
    type = TransientMultiApp
    input_files = 'sub.i'
    execute_on = timestep_end
    positions = '0 -1 0'
  []
[]

[Transfers]
  [from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub_app
    source_variable = u
    variable = v
  []
[]

(test/tests/bcs/sin_bc/sin_neumann_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  nz = 0
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[Functions]
  [./initial_value]
    type = ParsedFunction
    expression = 'x'
  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

#    [./InitialCondition]
#      type = FunctionIC
 #     function = initial_value
#    [../]
  [../]
[]

[Kernels]
  active = 'diff ie'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 1
  [../]

  [./right]
    type = SinNeumannBC
    variable = u
    boundary = 1
    initial = 1.0
    final = 2.0
    duration = 10.0
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  num_steps = 10
  dt = 1.0
[]

[Outputs]
  exodus = true
[]

(test/tests/time_steppers/fixed_point_iteration_adaptive_dt/main.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [dt]
    type = TimestepSize
    execute_on = 'TIMESTEP_END'
  []
  [fp_its]
    type = NumFixedPointIterations
    execute_on = 'TIMESTEP_END'
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 10
  fixed_point_rel_tol = 1e-8
  nl_abs_tol = 1e-14
  verbose = true

  [TimeStepper]
    type = FixedPointIterationAdaptiveDT
    dt_initial = 0.1
    target_iterations = 6
    target_window = 0
    increase_factor = 2.0
    decrease_factor = 0.5
  []
[]

[Outputs]
  file_base = 'increase_dt'
  [csv]
    type = CSV
    execute_on = 'TIMESTEP_END'
  []
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = sub.i
    sub_cycling = true
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test4.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 4
    ny = 4
    nz = 1
    xmin = 0
    xmax = 4
    ymin = 0
    ymax = 4
    zmin = 0
    zmax = 1
  []

  [SubdomainBoundingBox]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    block_id = 1
    bottom_left = '1 1 0'
    top_right = '3 3 1'
  []
  [ed0]
    type = BlockDeletionGenerator
    block = 1
    input = SubdomainBoundingBox
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [top]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 1
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 10
  dt = 10

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/combined/test/tests/surface_tension_KKS/surface_tension_VDWgas.i)

# Test for ComputeExtraStressVDWGas
# Gas bubble with r = 15 nm in a solid matrix
# The gas pressure is counterbalanced by the surface tension of the solid-gas interface,
# which is included with ComputeSurfaceTensionKKS

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 300
  xmin = 0
  xmax = 30
[]

[Problem]
  coord_type = RSPHERICAL
[]

[GlobalParams]
  displacements = 'disp_x'
[]

[Variables]
  # order parameter
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]

  # gas concentration
  [./cg]
    order = FIRST
    family = LAGRANGE
  [../]

  # vacancy concentration
  [./cv]
    order = FIRST
    family = LAGRANGE
  [../]


  # gas chemical potential
  [./wg]
    order = FIRST
    family = LAGRANGE
  [../]

  # vacancy chemical potential
  [./wv]
    order = FIRST
    family = LAGRANGE
  [../]


  # Matrix phase gas concentration
  [./cgm]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1.01e-31
  [../]

  # Matrix phase vacancy concentration
  [./cvm]
    order = FIRST
    family = LAGRANGE
    initial_condition = 2.25e-11
  [../]

  # Bubble phase gas concentration
  [./cgb]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.2714
  [../]

  # Bubble phase vacancy concentration
  [./cvb]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.7286
  [../]
[]

[ICs]
  [./eta_ic]
    variable = eta
    type = FunctionIC
    function = ic_func_eta
  [../]
  [./cv_ic]
    variable = cv
    type = FunctionIC
    function = ic_func_cv
  [../]
  [./cg_ic]
    variable = cg
    type = FunctionIC
    function = ic_func_cg
  [../]
[]

[Functions]
  [./ic_func_eta]
    type = ParsedFunction
    expression = 'r:=sqrt(x^2+y^2+z^2);0.5*(1.0-tanh((r-r0)/delta_eta/sqrt(2.0)))'
    symbol_names = 'delta_eta r0'
    symbol_values = '0.321     15'
  [../]
  [./ic_func_cv]
    type = ParsedFunction
    expression = 'r:=sqrt(x^2+y^2+z^2);eta_an:=0.5*(1.0-tanh((r-r0)/delta/sqrt(2.0)));cvbubinit*eta_an^3*(6*eta_an^2-15*eta_an+10)+cvmatrixinit*(1-eta_an^3*(6*eta_an^2-15*eta_an+10))'
    symbol_names = 'delta r0  cvbubinit cvmatrixinit'
    symbol_values = '0.321 15  0.7286    2.25e-11'
  [../]
  [./ic_func_cg]
    type = ParsedFunction
    expression = 'r:=sqrt(x^2+y^2+z^2);eta_an:=0.5*(1.0-tanh((r-r0)/delta/sqrt(2.0)));cgbubinit*eta_an^3*(6*eta_an^2-15*eta_an+10)+cgmatrixinit*(1-eta_an^3*(6*eta_an^2-15*eta_an+10))'
    symbol_names = 'delta r0  cgbubinit cgmatrixinit'
    symbol_values = '0.321 15  0.2714    1.01e-31'
  [../]
[]



[Physics/SolidMechanics/QuasiStatic]
  [./all]
    add_variables = true
    generate_output = 'hydrostatic_stress stress_xx stress_yy stress_zz'
  [../]
[]

[Kernels]
  # enforce cg = (1-h(eta))*cgm + h(eta)*cgb
  [./PhaseConc_g]
    type = KKSPhaseConcentration
    ca       = cgm
    variable = cgb
    c        = cg
    eta      = eta
  [../]

  # enforce cv = (1-h(eta))*cvm + h(eta)*cvb
  [./PhaseConc_v]
    type = KKSPhaseConcentration
    ca       = cvm
    variable = cvb
    c        = cv
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotVacancies]
    type = KKSPhaseChemicalPotential
    variable = cvm
    cb       = cvb
    fa_name  = f_total_matrix
    fb_name  = f_total_bub
    args_a = 'cgm'
    args_b = 'cgb'
  [../]
  [./ChemPotGas]
    type = KKSPhaseChemicalPotential
    variable = cgm
    cb       = cgb
    fa_name  = f_total_matrix
    fb_name  = f_total_bub
    args_a = 'cvm'
    args_b = 'cvb'
  [../]

  #
  # Cahn-Hilliard Equations
  #
  [./CHBulk_g]
    type = KKSSplitCHCRes
    variable = cg
    ca       = cgm
    fa_name  = f_total_matrix
    w        = wg
    args_a   = 'cvm'
  [../]
  [./CHBulk_v]
    type = KKSSplitCHCRes
    variable = cv
    ca       = cvm
    fa_name  = f_total_matrix
    w        = wv
    args_a   = 'cgm'
  [../]

  [./dcgdt]
    type = CoupledTimeDerivative
    variable = wg
    v = cg
  [../]
  [./dcvdt]
    type = CoupledTimeDerivative
    variable = wv
    v = cv
  [../]

  [./wgkernel]
    type = SplitCHWRes
    mob_name = M
    variable = wg
  [../]
  [./wvkernel]
    type = SplitCHWRes
    mob_name = M
    variable = wv
  [../]

  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = f_total_matrix
    fb_name  = f_total_bub
    w        = 0.356
    args = 'cvm cvb cgm cgb'
  [../]
  [./ACBulkCv]
    type = KKSACBulkC
    variable = eta
    ca       = cvm
    cb       = cvb
    fa_name  = f_total_matrix
    args     = 'cgm'
  [../]
  [./ACBulkCg]
    type = KKSACBulkC
    variable = eta
    ca       = cgm
    cb       = cgb
    fa_name  = f_total_matrix
    args     = 'cvm'
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[Materials]
  # Chemical free energy of the matrix
  [./fm]
    type = DerivativeParsedMaterial
    property_name = fm
    coupled_variables = 'cvm cgm'
    material_property_names = 'kvmatrix kgmatrix cvmatrixeq cgmatrixeq'
    expression = '0.5*kvmatrix*(cvm-cvmatrixeq)^2 + 0.5*kgmatrix*(cgm-cgmatrixeq)^2'
  [../]
# Elastic energy of the matrix
  [./elastic_free_energy_m]
    type = ElasticEnergyMaterial
    base_name = matrix
    f_name = fe_m
    args = ' '
  [../]
# Total free energy of the matrix
  [./Total_energy_matrix]
    type = DerivativeSumMaterial
    property_name = f_total_matrix
    sum_materials = 'fm fe_m'
    coupled_variables = 'cvm cgm'
  [../]

  # Free energy of the bubble phase
  [./fb]
    type = DerivativeParsedMaterial
    property_name = fb
    coupled_variables = 'cvb cgb'
    material_property_names = 'kToverV nQ Va b f0 kpen kgbub kvbub cvbubeq cgbubeq'
    expression = '0.5*kgbub*(cvb-cvbubeq)^2 + 0.5*kvbub*(cgb-cgbubeq)^2'
  [../]

# Elastic energy of the bubble
  [./elastic_free_energy_p]
    type = ElasticEnergyMaterial
    base_name = bub
    f_name = fe_b
    args = ' '
  [../]

# Total free energy of the bubble
  [./Total_energy_bub]
    type = DerivativeSumMaterial
    property_name = f_total_bub
    sum_materials = 'fb fe_b'
    # sum_materials = 'fb'
    coupled_variables = 'cvb cgb'
  [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   kappa  Va      kvmatrix  kgmatrix  kgbub kvbub f0      kpen  cvbubeq cgbubeq b      T'
    prop_values = '0.7 0.7 0.0368 0.03629 223.16    223.16    2.23  2.23  0.0224  1.0   0.6076  0.3924  0.085  800'
  [../]
  [./cvmatrixeq]
    type = ParsedMaterial
    property_name = cvmatrixeq
    material_property_names = 'T'
    constant_names        = 'kB           Efv'
    constant_expressions  = '8.6173324e-5 1.69'
    expression = 'exp(-Efv/(kB*T))'
  [../]
  [./cgmatrixeq]
    type = ParsedMaterial
    property_name = cgmatrixeq
    material_property_names = 'T'
    constant_names        = 'kB           Efg'
    constant_expressions  = '8.6173324e-5 4.92'
    expression = 'exp(-Efg/(kB*T))'
  [../]
  [./kToverV]
    type = ParsedMaterial
    property_name = kToverV
    material_property_names = 'T Va'
    constant_names        = 'k          C44dim' #k in J/K and dimensional C44 in J/m^3
    constant_expressions  = '1.38e-23   63e9'
    expression = 'k*T*1e27/Va/C44dim'
  [../]
  [./nQ]
    type = ParsedMaterial
    property_name = nQ
    material_property_names = 'T'
    constant_names        = 'k          Pi      M         hbar' #k in J/K, M is Xe atomic mass in kg, hbar in J s
    constant_expressions  = '1.38e-23   3.14159 2.18e-25  1.05459e-34'
    expression = '(M*k*T/2/Pi/hbar^2)^1.5 * 1e-27' #1e-27 converts from #/m^3 to #/nm^3
  [../]

  #Mechanical properties
  [./Stiffness_matrix]
    type = ComputeElasticityTensor
    C_ijkl = '0.778 0.7935'
    fill_method = symmetric_isotropic
    base_name = matrix
  [../]
  [./Stiffness_bub]
    type = ComputeElasticityTensor
    C_ijkl = '0.0778 0.07935'
    fill_method = symmetric_isotropic
    base_name = bub
  [../]
  [./strain_matrix]
    type = ComputeRSphericalSmallStrain
    base_name = matrix
  [../]
  [./strain_bub]
    type = ComputeRSphericalSmallStrain
    base_name = bub
  [../]
  [./stress_matrix]
    type = ComputeLinearElasticStress
    base_name = matrix
  [../]
  [./stress_bub]
    type = ComputeLinearElasticStress
    base_name = bub
  [../]
  [./global_stress]
    type = TwoPhaseStressMaterial
    base_A = matrix
    base_B = bub
  [../]
  [./surface_tension]
    type = ComputeSurfaceTensionKKS
    v = eta
    kappa_name = kappa
    w = 0.356
  [../]
  [./gas_pressure]
    type = ComputeExtraStressVDWGas
    T = T
    b = b
    cg = cgb
    Va = Va
    nondim_factor = 63e9
    base_name = bub
    outputs = exodus
  [../]
[]

[BCs]
  [./left_r]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0
  [../]
[]

[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -sub_pc_type   -sub_pc_factor_shift_type'
  petsc_options_value = 'asm       lu            nonzero'

  l_max_its = 30
  nl_max_its = 15
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  nl_abs_tol = 1e-11
  num_steps = 2
  dt = 0.5
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/MultiSmoothCircleIC/latticesmoothcircleIC_small_invalue_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 25
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c]
    type = SpecifiedSmoothCircleIC
    variable = c
    invalue = -0.8
    outvalue = 1
    int_width = 5
    x_positions = '25 32'
    z_positions = '0 0'
    y_positions = '25 32'
    radii = '6 5'
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.5'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-5
  nl_max_its = 40
  nl_rel_tol = 5.0e-14

  start_time = 0.0
  num_steps = 1
  dt = 5
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/flood_counter_aux_test/boundary_intersection.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 50
    xmax = 10
    ymax = 50
  []
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
    order = CONSTANT
    family = MONOMIAL
  []
  [pid]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [dot]
    type = TimeDerivative
    variable = u
  []
[]

[AuxKernels]
  [intersect]
    type = FeatureFloodCountAux
    variable = v
    flood_counter = intersection
    field_display = INTERSECTS_SPECIFIED_BOUNDARY
    execute_on = 'initial timestep_end'
  []
  [pid]
    type = ProcessorIDAux
    variable = pid
  []
[]

[ICs]
  [v]
    type = BoundingBoxIC
    variable = u
    inside = 1
    outside = 0
    x1 = 3
    x2 = 7
    y1 = 0
    y2 = 45
  []
[]

[Postprocessors]
  [intersection]
    type = FeatureFloodCount
    variable = u
    threshold = 0.3
    specified_boundaries = bottom
    compute_var_to_feature_map = true
    execute_on = 'initial timestep_end'
  []
  [vint]
    type = ElementIntegralVariablePostprocessor
    variable = v
  []
[]

[Executioner]
  type = Transient
  dt = 0.01
  num_steps = 2
[]

[Outputs]
  execute_on = 'timestep_end'
  csv = true
[]

(test/tests/outputs/oversample/over_sampling_test_file.i)

[Mesh]
  type = FileMesh
  file = square_3x3.e
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = -4+(x*x+y*y)
  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = THIRD
    family = HERMITE
  [../]
[]

[Kernels]
  active = 'ie diff ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '1 2 3 4'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./dt]
    type = TimestepSize
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.2
  start_time = 0
  num_steps = 5
[]

[Outputs]
  file_base = out_file
  exodus = true
  [./oversampling]
    file_base = out_file_oversample
    type = Exodus
    refinements = 3
  [../]
[]

(modules/phase_field/test/tests/mobility_derivative/matdiffusion.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  xmax = 15.0
  ymax = 15.0
  elem_type = QUAD4
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = CrossIC
      x1 = 0.0
      x2 = 30.0
      y1 = 0.0
      y2 = 30.0
    [../]
  [../]
  [./d]
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 15
      y1 = 15
      radius = 8
      int_width = 3
      invalue = 2
      outvalue = 0
    [../]
  [../]
[]

[Kernels]
  [./cres]
    type = MatDiffusion
    variable = c
    diffusivity = Dc
    args = d
  [../]
  [./ctime]
    type = TimeDerivative
    variable = c
  [../]

  [./dres]
    type = MatDiffusion
    variable = d
    diffusivity = Dd
    args = c
  [../]
  [./dtime]
    type = TimeDerivative
    variable = d
  [../]
[]

[Materials]
  [./Dc]
    type = DerivativeParsedMaterial
    property_name = Dc
    expression = '0.01+c^2+d'
    coupled_variables = 'c d'
    derivative_order = 1
  [../]
  [./Dd]
    type = DerivativeParsedMaterial
    property_name = Dd
    expression = 'd^2+c+1.5'
    coupled_variables = 'c d'
    derivative_order = 1
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'BDF2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  lu           1'

  dt = 1
  num_steps = 2
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/actually_explicit_euler/actually_explicit_euler_lump_preconditioned.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 'left'
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 'right'
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.0001
  l_tol = 1e-12

  [./TimeIntegrator]
    type = ActuallyExplicitEuler
    solve_type = lump_preconditioned
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/displaced/displaced_adapt_test.i)

# Adaptivity on displaced problem
# - testing initial_refinement and adaptivity as well
#
# variables:
# - u and v_aux are used for displacing the problem
# - v is used to get some refinements
#

[Mesh]
  [./square]
    type = GeneratedMeshGenerator
    nx = 2
    ny = 2
    dim = 2
  [../]
  uniform_refine = 3
  displacements = 'u aux_v'
[]

[Functions]
  [./aux_v_fn]
    type = ParsedFunction
    expression = x*(y-0.5)/5
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'udiff uie vdiff vconv vie'

  [./udiff]
    type = Diffusion
    variable = u
  [../]

  [./uie]
    type = TimeDerivative
    variable = u
  [../]

  [./vdiff]
    type = Diffusion
    variable = v
  [../]

  [./vconv]
    type = Convection
    variable = v
    velocity = '-10 1 0'
  [../]

  [./vie]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  active = 'uleft uright vleft vright'

  [./uleft]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./uright]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0.1
  [../]

  [./vleft]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 1
  [../]

  [./vright]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 0
  [../]
[]

[AuxVariables]
  [./aux_v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxKernels]
  [./aux_k_1]
    type = FunctionAux
    variable = aux_v
    function = aux_v_fn
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  start_time = 0.0
  num_steps = 2
  dt = .1

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
  [../]
[]

[Outputs]
  [./out]
    type = Exodus
    use_displaced = true
  [../]
[]

(test/tests/problems/reference_residual_problem/abs_ref_acceptable.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[GlobalParams]
  absolute_value_vector_tags = 'absref'
[]

[Problem]
  type = ReferenceResidualProblem
  reference_vector = 'absref'
  extra_tag_vectors = 'absref'
  acceptable_iterations = 1
  acceptable_multiplier = 1e6
[]

[Variables]
  [u][]
  [v]
    scaling = 1e-6
  []
[]

[Functions]
  [ramp]
    type = ParsedFunction
    expression = 'if(t < 5, t - 5, 0) * x'
  []
[]

[Kernels]
  [u_dt]
    type = TimeDerivative
    variable = u
  []
  [u_coupled_rx]
    type = CoupledForce
    variable = u
    v = v
    coef = 1
  []

  [v_dt]
    type = TimeDerivative
    variable = v
  []
  [v_neg_force]
    type = BodyForce
    variable = v
    value = ${fparse -1 / 2}
    function = ramp
  []
  [v_force]
    type = BodyForce
    variable = v
    value = 1
    function = ramp
  []
[]

[Postprocessors]
  [u_avg]
    type = ElementAverageValue
    variable = u
    execute_on = 'TIMESTEP_END INITIAL'
  []
  [v_avg]
    type = ElementAverageValue
    variable = v
    execute_on = 'TIMESTEP_END INITIAL'
  []
  [timestep]
    type = TimePostprocessor
    outputs = 'none'
  []
  [v_old]
    type = ElementAverageValue
    variable = v
    execute_on = TIMESTEP_BEGIN
    outputs = none
  []
  [u_old]
    type = ElementAverageValue
    variable = u
    execute_on = TIMESTEP_BEGIN
    outputs = none
  []
  [v_exact]
    type = ParsedPostprocessor
    pp_names = 'timestep v_old'
    expression = 't := if(timestep > 5, 5, timestep); (t^2 - 9 * t) / 8'
  []
  [u_exact]
    type = ParsedPostprocessor
    pp_names = 'u_old v_exact'
    expression = 'u_old + v_exact'
  []
[]


[Executioner]
  type = Transient
  petsc_options = '-snes_converged_reason'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
  line_search = none
  num_steps = 3
  nl_rel_tol = 1e-06
  verbose = true
[]

[Outputs]
  csv = true
  perf_graph = true
[]

(test/tests/postprocessors/element_time_derivative/element_time_derivative_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    # dudt = 3*t^2*(x^2 + y^2)
    type = ParsedFunction
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]
  [./forcing_fn2]
    # dudt = 3*t^2*(x^2 + y^2)
    type = ParsedFunction
    expression = t*x*y
  [../]
  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn2
  [../]
[]

[BCs]
  active = 'all'
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Postprocessors]
  [./elementAvgTimeDerivative]
    type = ElementAverageTimeDerivative
    variable = u
  [../]
  [./elementAvgValue]
    type = ElementAverageValue
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  scheme = implicit-euler

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_elm_time_deriv
  csv = true
[]

(modules/misc/test/tests/dynamic_loading/dynamic_load_multiapp/phase_field_sub.i)

# This input file contains objects only available in phase_field
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 2
  nz = 0
  xmax = 50
  ymax = 25
  zmax = 0
  elem_type = QUAD4
  uniform_refine = 2
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
    [./InitialCondition]
      type = BoundingBoxIC
      x1 = 15.0
      x2 = 35.0
      y1 = 0.0
      y2 = 25.0
      inside = 1.0
      outside = -0.8
      variable = c
    [../]
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
    block = 0
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 101'
  l_max_its = 15
  nl_max_its = 10
  start_time = 0.0
  num_steps = 2
  dt = 1.0
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/examples/multiapp_fracture_flow/fracture_diffusion/matrix_app_nonconforming.i)

# A fracture, which is a 1D line of elements, is embedded in a matrix, which is a 2D surface of elements.
# The meshes conform: all fracture nodes are also matrix nodes (the fracture elements are sides of matrix elements).
#
# The heat equation governs temperature in the fracture and matrix system, and heat energy is transferred between the two using a MultiApp approach
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 20
    xmin = 0
    xmax = 10.0
    ny = 20
    ymin = -1.9
    ymax = 2.1
  []
[]

[Variables]
  [matrix_T]
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = matrix_T
  []
  [matrix_diffusion]
    type = AnisotropicDiffusion
    variable = matrix_T
    tensor_coeff = '1E-3 0 0 0 1E-3 0 0 0 1E-3'
  []
[]

[DiracKernels]
  [heat_from_fracture]
    type = ReporterPointSource
    variable = matrix_T
    value_name = heat_transfer_rate/transferred_joules_per_s
    x_coord_name = heat_transfer_rate/x
    y_coord_name = heat_transfer_rate/y
    z_coord_name = heat_transfer_rate/z
  []
[]

[VectorPostprocessors]
  [heat_transfer_rate]
    type = ConstantVectorPostprocessor
    vector_names = 'transferred_joules_per_s x y z'
    value = '0; 0; 0; 0'
    outputs = none
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]


[Outputs]
  print_linear_residuals = false
  exodus = false
[]

[MultiApps]
  [fracture_app]
    type = TransientMultiApp
    input_files = fracture_app_dirac.i
    cli_args = 'Kernels/toMatrix/transfer_coefficient=0.01'
    execute_on = TIMESTEP_BEGIN
  []
[]

[Transfers]
  [T_to_fracture]
    type = MultiAppGeometricInterpolationTransfer
    to_multi_app = fracture_app
    source_variable = matrix_T
    variable = transferred_matrix_T
  []
  [heat_from_fracture]
    type = MultiAppReporterTransfer
    from_multi_app = fracture_app
    from_reporters = 'heat_transfer_rate/joules_per_s heat_transfer_rate/x heat_transfer_rate/y heat_transfer_rate/z'
    to_reporters = 'heat_transfer_rate/transferred_joules_per_s heat_transfer_rate/x heat_transfer_rate/y heat_transfer_rate/z'
  []
[]

(test/tests/kernels/conservative_advection/no_upwinding_1D.i)

# ConservativeAdvection with upwinding_type = None
# Apply a velocity = (1, 0, 0) and see a pulse advect to the right
# Note there are overshoots and undershoots
[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [./u]
  [../]
[]

[BCs]
  [./u_injection_left]
    type = InflowBC
    boundary = left
    variable = u
    velocity = '1 0 0'
    inlet_conc = 1
  [../]
[]

[Kernels]
  [./udot]
    type = TimeDerivative
    variable = u
  [../]
  [./advection]
    type = ConservativeAdvection
    variable = u
    velocity = '1 0 0'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = LINEAR
  dt = 0.1
  end_time = 1
  l_tol = 1E-14
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/steffensen/transient_main.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  parallel_type = replicated
  uniform_refine = 1
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [coupling_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
  [unorm]
    type = ElementL2Norm
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-14

  fixed_point_algorithm = 'steffensen'
  fixed_point_max_its = 30
  transformed_variables = 'u'
[]

[Outputs]
  csv = true
  exodus = false
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = 'transient_sub.i'
    clone_parent_mesh = true
    execute_on = 'timestep_begin'
    # The input was originally created with effectively no restore
    # see the changes made for #5554 then reverted in #28115
    no_restore = true
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
    execute_on = 'timestep_begin'
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
    execute_on = 'timestep_begin'
  []
[]

(test/tests/transfers/multiapp_userobject_transfer/tosub_displaced_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 8
  xmax = 0.1
  ymax = 0.5
  displacements = 'disp_x disp_y'
[]

[Variables]
  [./u]
    initial_condition = 1
  [../]
[]

[AuxVariables]
  [./multi_layered_average]
  [../]
  [./element_multi_layered_average]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./disp_x]
    initial_condition = 0.0
  [../]
  [./disp_y]
    initial_condition = 0.5
  [../]
[]

[Functions]
  [./axial_force]
    type = ParsedFunction
    expression = 1000*y
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./force]
    type = BodyForce
    variable = u
    function = axial_force
  [../]
[]

[BCs]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.001

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Problem]
  coord_type = rz
  type = FEProblem
[]

(modules/porous_flow/test/tests/jacobian/hgs01.i)

# apply a half-gaussian sink flux and observe the correct behavior
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph1_sp0]
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'ppwater ppgas massfrac_ph0_sp0 massfrac_ph1_sp0'
    number_fluid_phases = 2
    number_fluid_components = 2
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
[]

[ICs]
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph1_sp0'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
[]

[BCs]
  [flux_w]
    type = PorousFlowHalfGaussianSink
    boundary = 'left'
    center = 0.1
    sd = 1.1
    max = 2.2
    variable = ppwater
    mass_fraction_component = 0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
    flux_function = 'x*y'
  []
  [flux_g]
    type = PorousFlowHalfGaussianSink
    boundary = 'top left front'
    center = 0.5
    sd = 1.1
    max = -2.2
    mass_fraction_component = 0
    variable = ppgas
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-x*y'
  []
  [flux_1]
    type = PorousFlowHalfGaussianSink
    boundary = 'right'
    center = -0.1
    sd = 1.1
    max = 1.2
    mass_fraction_component = 1
    variable = massfrac_ph0_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-1.1*x*y'
  []
  [flux_2]
    type = PorousFlowHalfGaussianSink
    boundary = 'bottom'
    center = 3.2
    sd = 1.1
    max = 1.2
    mass_fraction_component = 1
    variable = massfrac_ph1_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '0.5*x*y'
  []
[]


[Preconditioning]
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 2
[]

[Outputs]
  file_base = pls03
[]

(test/tests/postprocessors/scalar_variable/scalar_variable_pps.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[ScalarKernels]
  [time]
    type = ODETimeDerivative
    variable = v
  []
  [flux_sink]
    type = PostprocessorSinkScalarKernel
    variable = v
    postprocessor = scale_flux
  []
[]

[BCs]
  [right]
    type = DirichletBC
    value = 0
    variable = u
    boundary = 'right'
  []
  [left]
    type = ADMatchedScalarValueBC
    variable = u
    v = v
    boundary = 'left'
  []
[]

[Variables]
  [u][]
  [v]
    family = SCALAR
    order = FIRST
    initial_condition = 1
  []
[]

[Postprocessors]
  [flux]
    type = SideDiffusiveFluxIntegral
    variable = u
    diffusivity = 1
    boundary = 'left'
    execute_on = 'initial nonlinear linear timestep_end'
  []
  [scale_flux]
    type = ScalePostprocessor
    scaling_factor = -1
    value = flux
    execute_on = 'initial nonlinear linear timestep_end'
  []
  [reporter]
    type = ScalarVariable
    variable = v
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  dt = .1
  end_time = 1
  solve_type = PJFNK
  nl_rel_tol = 1e-12
[]

[Outputs]
  csv = true
[]

(test/tests/misc/check_error/invalid_steady_exec_test.i)

[Mesh]
  [./square]
    type = GeneratedMeshGenerator
    nx = 2
    ny = 2
    dim = 2
  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]

  # Time kernel in a steady state simulation
  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Executioner]
  type = Steady

  solve_type = 'PJFNK'
[]

[Outputs]
  file_base = out
[]

(modules/phase_field/examples/multiphase/GrandPotential3Phase_masscons.i)

# This is an example of implementation of the multi-phase, multi-order parameter
# grand potential based phase-field model described in Phys. Rev. E, 98, 023309
# (2018). It includes 3 phases with 1 grain of each phase.
# This is a revised version of the model that eliminates small variations in mass
# that have been observed with the original formulation. In this version, rather
# than evolving the chemical potential as a field variable, we evolve the composition
# field using a normal Cahn-Hilliard equation, then relate chemical potential to
# composition using Eq. (22) from the paper (this relationship is derived from the
# grand potential functional and is valid only for parabolic free energies).

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 60
  ny = 60
  xmin = -15
  xmax = 15
  ymin = -15
  ymax = 15
[]

[Variables]
  [w]
  []
  [c]
  []
  [etaa0]
  []
  [etab0]
  []
  [etad0]
  []
[]

[ICs]
  [IC_etaa0]
    type = BoundingBoxIC
    variable = etaa0
    x1 = -10
    y1 = -10
    x2 = 10
    y2 = 10
    inside = 1.0
    outside = 0.0
  []
  [IC_etad0]
    type = BoundingBoxIC
    variable = etad0
    x1 = -10
    y1 = -10
    x2 = 10
    y2 = 10
    inside = 0.0
    outside = 1.0
  []
  [IC_c]
    type = BoundingBoxIC
    variable = c
    x1 = -10
    y1 = -10
    x2 = 10
    y2 = 10
    inside = 0.1
    outside = 0.5
  []
  [IC_w]
    type = FunctionIC
    variable = w
    function = ic_func_w
  []
[]

[Functions]
  [ic_func_w]
    type = ConstantFunction
    value = 0
  []
[]

[Kernels]
  # Order parameter eta_alpha0
  [ACa0_bulk]
    type = ACGrGrMulti
    variable = etaa0
    v = 'etab0 etad0'
    gamma_names = 'gab   gad'
  []
  [ACa0_sw]
    type = ACSwitching
    variable = etaa0
    Fj_names = 'omegaa omegab omegad'
    hj_names = 'ha     hb     hd'
    coupled_variables = 'etab0 etad0 w'
  []
  [ACa0_int]
    type = ACInterface
    variable = etaa0
    kappa_name = kappa
  []
  [ea0_dot]
    type = TimeDerivative
    variable = etaa0
  []
  # Order parameter eta_beta0
  [ACb0_bulk]
    type = ACGrGrMulti
    variable = etab0
    v = 'etaa0 etad0'
    gamma_names = 'gab   gbd'
  []
  [ACb0_sw]
    type = ACSwitching
    variable = etab0
    Fj_names = 'omegaa omegab omegad'
    hj_names = 'ha     hb     hd'
    coupled_variables = 'etaa0 etad0 w'
  []
  [ACb0_int]
    type = ACInterface
    variable = etab0
    kappa_name = kappa
  []
  [eb0_dot]
    type = TimeDerivative
    variable = etab0
  []
  # Order parameter eta_delta0
  [ACd0_bulk]
    type = ACGrGrMulti
    variable = etad0
    v = 'etaa0 etab0'
    gamma_names = 'gad   gbd'
  []
  [ACd0_sw]
    type = ACSwitching
    variable = etad0
    Fj_names = 'omegaa omegab omegad'
    hj_names = 'ha     hb     hd'
    coupled_variables = 'etaa0 etab0 w'
  []
  [ACd0_int]
    type = ACInterface
    variable = etad0
    kappa_name = kappa
  []
  [ed0_dot]
    type = TimeDerivative
    variable = etad0
  []
  #Concentration
  [c_dot]
    type = TimeDerivative
    variable = c
  []
  [Diffusion]
    type = MatDiffusion
    variable = c
    v = w
    diffusivity = DchiVm
    args = ''
  []
  #The following relate chemical potential to composition using Eq. (22)
  [w_rxn]
    type = MatReaction
    variable = w
    v = c
    reaction_rate = -1
  []
  [ca_rxn]
    type = MatReaction
    variable = w
    reaction_rate = 'hoverk_a'
    args = 'etaa0 etab0 etad0'
  []
  [ca_bodyforce]
    type = MaskedBodyForce
    variable = w
    mask = ha
    coupled_variables = 'etaa0 etab0 etad0'
    value = 0.1 #caeq
  []
  [cb_rxn]
    type = MatReaction
    variable = w
    reaction_rate = 'hoverk_b'
    args = 'etaa0 etab0 etad0'
  []
  [cb_bodyforce]
    type = MaskedBodyForce
    variable = w
    mask = hb
    coupled_variables = 'etaa0 etab0 etad0'
    value = 0.9 #cbeq
  []
  [cd_rxn]
    type = MatReaction
    variable = w
    reaction_rate = 'hoverk_d'
    args = 'etaa0 etab0 etad0'
  []
  [cd_bodyforce]
    type = MaskedBodyForce
    variable = w
    mask = hd
    coupled_variables = 'etaa0 etab0 etad0'
    value = 0.5 #cdeq
  []
[]

[Materials]
  [ha_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = ha
    all_etas = 'etaa0 etab0 etad0'
    phase_etas = 'etaa0'
  []
  [hb_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hb
    all_etas = 'etaa0 etab0 etad0'
    phase_etas = 'etab0'
  []
  [hd_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hd
    all_etas = 'etaa0 etab0 etad0'
    phase_etas = 'etad0'
  []
  [omegaa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegaa
    material_property_names = 'Vm ka caeq'
    expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
    derivative_order = 2
  []
  [omegab]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegab
    material_property_names = 'Vm kb cbeq'
    expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq'
    derivative_order = 2
  []
  [omegad]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegad
    material_property_names = 'Vm kd cdeq'
    expression = '-0.5*w^2/Vm^2/kd-w/Vm*cdeq'
    derivative_order = 2
  []
  [rhoa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhoa
    material_property_names = 'Vm ka caeq'
    expression = 'w/Vm^2/ka + caeq/Vm'
    derivative_order = 2
  []
  [rhob]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhob
    material_property_names = 'Vm kb cbeq'
    expression = 'w/Vm^2/kb + cbeq/Vm'
    derivative_order = 2
  []
  [rhod]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhod
    material_property_names = 'Vm kd cdeq'
    expression = 'w/Vm^2/kd + cdeq/Vm'
    derivative_order = 2
  []
  [const]
    type = GenericConstantMaterial
    prop_names = 'kappa_c  kappa   L   D    Vm   ka    caeq kb    cbeq  kd    cdeq  gab gad gbd  mu  tgrad_corr_mult'
    prop_values = '0        1       1.0 1.0  1.0  10.0  0.1  10.0  0.9   10.0  0.5   1.5 1.5 1.5  1.0 0.0'
  []
  [Mobility]
    type = DerivativeParsedMaterial
    property_name = DchiVm
    material_property_names = 'D chi Vm' #Factor of Vm is needed to evolve c instead of rho
    expression = 'D*chi*Vm'
    derivative_order = 2
  []
  [chi]
    type = DerivativeParsedMaterial
    property_name = chi
    material_property_names = 'Vm ha(etaa0,etab0,etad0) ka hb(etaa0,etab0,etad0) kb hd(etaa0,etab0,etad0) kd'
    expression = '(ha/ka + hb/kb + hd/kd) / Vm^2'
    coupled_variables = 'etaa0 etab0 etad0'
    derivative_order = 2
  []
  [hoverk_a]
    type = DerivativeParsedMaterial
    material_property_names = 'ha(etaa0,etab0,etad0) Vm ka'
    property_name = hoverk_a
    expression = 'ha / Vm / ka'
  []
  [hoverk_b]
    type = DerivativeParsedMaterial
    material_property_names = 'hb(etaa0,etab0,etad0) Vm kb'
    property_name = hoverk_b
    expression = 'hb / Vm / kb'
  []
  [hoverk_d]
    type = DerivativeParsedMaterial
    material_property_names = 'hd(etaa0,etab0,etad0) Vm kd'
    property_name = hoverk_d
    expression = 'hd / Vm / kd'
  []
[]

[Postprocessors]
  [c_total]
    type = ElementIntegralVariablePostprocessor
    variable = c
  []
[]

[Executioner]
  type = Transient
  nl_max_its = 15
  scheme = bdf2
  solve_type = NEWTON
  petsc_options_iname = -pc_type
  petsc_options_value = asm
  l_max_its = 15
  l_tol = 1.0e-3
  nl_rel_tol = 1.0e-8
  start_time = 0.0
  num_steps = 20
  nl_abs_tol = 1e-10
  dt = 1.0
[]

[Outputs]
  csv = true
  exodus = true
[]

(test/tests/outputs/iterative/iterative_start_time.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  [./out]
    type = Exodus
    nonlinear_residual_dt_divisor = 100
    linear_residual_dt_divisor = 100
    nonlinear_residual_start_time = 1.8
    linear_residual_start_time = 1.8
  [../]
[]

(test/tests/multiapps/grid-sequencing/vi-coarser.i)

l=10
nx=20
num_steps=2

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = ${l}
  nx = ${nx}
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [bounds][]
[]

[Bounds]
  [./u_upper_bounds]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = upper
    bound_value = ${l}
  [../]
  [./u_lower_bounds]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = lower
    bound_value = 0
  [../]
[]

[ICs]
  [u]
    type = FunctionIC
    variable = u
    function = 'x'
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [ffn]
    type = BodyForce
    variable = u
    function = 'if(x<5,-1,1)'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = 0
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = ${l}
    variable = u
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  num_steps = ${num_steps}
  solve_type = NEWTON
  dtmin = 1
  petsc_options = '-snes_vi_monitor'
  petsc_options_iname = '-snes_max_linear_solve_fail -ksp_max_it -pc_type -sub_pc_factor_levels -snes_linesearch_type -snes_type'
  petsc_options_value = '0                           30          asm      16                    basic                 vinewtonrsls'
[]

[Outputs]
  exodus = true
  [csv]
    type = CSV
    execute_on = 'nonlinear timestep_end'
  []
  [dof]
    type = DOFMap
    execute_on = 'initial'
  []
[]

[Debug]
  show_var_residual_norms = true
[]

[Postprocessors]
  active = 'upper_violations lower_violations'
  [upper_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = ${fparse 10+1e-8}
    comparator = 'greater'
  []
  [lower_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = -1e-8
    comparator = 'less'
  []
  [nls]
    type = NumNonlinearIterations
  []
  [cum_nls]
    type = CumulativeValuePostprocessor
    postprocessor = nls
  []
[]

(modules/combined/test/tests/DiffuseCreep/stress.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 2
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = FunctionIC
      function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);0.1+0.1*v'
    [../]
  [../]
  [./mu]
  [../]
  [./jx]
  [../]
  [./jy]
  [../]
  [./disp_x]
  [../]
  [./disp_y]
  [../]
[]

[AuxVariables]
  [./gb]
    family = LAGRANGE
    order  = FIRST
  [../]
  [./creep_strain_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./creep_strain_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./creep_strain_xy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_xy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
[]

[Kernels]
  [./conc]
    type = CHSplitConcentration
    variable = c
    mobility = mobility_prop
    chemical_potential_var = mu
  [../]
  [./chempot]
    type = CHSplitChemicalPotential
    variable = mu
    chemical_potential_prop = mu_prop
    c = c
  [../]
  [./flux_x]
    type = CHSplitFlux
    variable = jx
    component = 0
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./flux_y]
    type = CHSplitFlux
    variable = jy
    component = 1
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
  [./TensorMechanics]
    displacements = 'disp_x disp_y'
  [../]
[]

[AuxKernels]
  [./gb]
    type = FunctionAux
    variable = gb
    function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);v'
  [../]
  [./creep_strain_xx]
    type = RankTwoAux
    variable = creep_strain_xx
    rank_two_tensor = creep_strain
    index_i = 0
    index_j = 0
  [../]
  [./creep_strain_yy]
    type = RankTwoAux
    variable = creep_strain_yy
    rank_two_tensor = creep_strain
    index_i = 1
    index_j = 1
  [../]
  [./creep_strain_xy]
    type = RankTwoAux
    variable = creep_strain_xy
    rank_two_tensor = creep_strain
    index_i = 0
    index_j = 1
  [../]
  [./stress_xx]
    type = RankTwoAux
    variable = stress_xx
    rank_two_tensor = stress
    index_i = 0
    index_j = 0
  [../]
  [./stress_yy]
    type = RankTwoAux
    variable = stress_yy
    rank_two_tensor = stress
    index_i = 1
    index_j = 1
  [../]
  [./stress_xy]
    type = RankTwoAux
    variable = stress_xy
    rank_two_tensor = stress
    index_i = 0
    index_j = 1
  [../]
[]

[Materials]
  [./chemical_potential]
    type = DerivativeParsedMaterial
    block = 0
    property_name = mu_prop
    coupled_variables = c
    expression = 'c'
    derivative_order = 1
  [../]
  [./var_dependence]
    type = DerivativeParsedMaterial
    block = 0
    expression = 'c*(1.0-c)'
    coupled_variables = c
    property_name = var_dep
    derivative_order = 1
  [../]
  [./mobility]
    type = CompositeMobilityTensor
    block = 0
    M_name = mobility_prop
    tensors = diffusivity
    weights = var_dep
    args = c
  [../]
  [./phase_normal]
    type = PhaseNormalTensor
    phase = gb
    normal_tensor_name = gb_normal
  [../]
  [./aniso_tensor]
    type = GBDependentAnisotropicTensor
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = aniso_tensor
  [../]
  [./diffusivity]
    type = GBDependentDiffusivity
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = diffusivity
  [../]
  [./diffuse_strain_increment]
    type = FluxBasedStrainIncrement
    xflux = jx
    yflux = jy
    gb = gb
    property_name = diffuse
  [../]
  [./diffuse_creep_strain]
    type = SumTensorIncrements
    tensor_name = creep_strain
    coupled_tensor_increment_names = diffuse
  [../]
  [./strain]
   type = ComputeIncrementalStrain
    displacements = 'disp_x disp_y'
  [../]
  [./stress]
    type = ComputeStrainIncrementBasedStress
    inelastic_strain_names = creep_strain
  [../]
  [./elasticity_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '120.0 80.0'
    fill_method = symmetric_isotropic
  [../]
[]

[BCs]
  [./Periodic]
    [./cbc]
      auto_direction = 'x y'
      variable = c
    [../]
  [../]
  [./fix_x]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0
  [../]
  [./fix_y]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK

  petsc_options_iname = '-pc_type -ksp_grmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  preonly       lu           1'

  nl_rel_tol = 1e-10
  nl_max_its = 5

  l_tol = 1e-4
  l_max_its = 20

  dt = 1
  num_steps = 5
[]

[Preconditioning]
  [./smp]
     type = SMP
     full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/basic_advection/2phase.i)

# Basic advection of u in a 2-phase situation
#
# grad(P) = -2
# density * gravity = 4 * 0.25
# grad(P) - density * gravity = -3
# permeability = 10
# relative permeability = 0.5
# viscosity = 150
# so Darcy velocity = 0.1
[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
  xmin = 0
  xmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [P0]
  []
  [P1]
  []
[]

[ICs]
  [P0]
    type = FunctionIC
    variable = P0
    function = '0'
  []
  [P1]
    type = FunctionIC
    variable = P1
    function = '2*(1-x)'
  []
  [u]
    type = FunctionIC
    variable = u
    function = 'if(x<0.1,1,0)'
  []
[]

[Kernels]
  [u_dot]
    type = TimeDerivative
    variable = u
  []
  [u_advection]
    type = PorousFlowBasicAdvection
    variable = u
    phase = 1
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = ''
    number_fluid_phases = 2
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    density0 = 32
    viscosity = 123
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    density0 = 4
    thermal_expansion = 0
    viscosity = 150.0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = P0
    phase1_porepressure = P1
    capillary_pressure = pc
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '10 0 0 0 10 0 0 0 10'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityConst
    kr = 0.5
    phase = 1
  []
  [darcy_velocity]
    type = PorousFlowDarcyVelocityMaterial
    gravity = '0.25 0 0'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = 1
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = 0
    variable = u
  []
[]

[Preconditioning]
  [basic]
    type = SMP
    full = true
    petsc_options_iname = '-pc_type -snes_rtol'
    petsc_options_value = ' lu       1E-10'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 5
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
[]

(modules/phase_field/examples/multiphase/GrandPotential3Phase.i)

# This is an example of implementation of the multi-phase, multi-order parameter
# grand potential based phase-field model described in Phys. Rev. E, 98, 023309
# (2018). It includes 3 phases with 1 grain of each phase. This example was used
# to generate the results shown in Fig. 3 of the paper.

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 60
  xmin = -15
  xmax = 15
[]

[Variables]
  [./w]
  [../]
  [./etaa0]
  [../]
  [./etab0]
  [../]
  [./etad0]
  [../]
[]

[ICs]
  [./IC_etaa0]
    type = FunctionIC
    variable = etaa0
    function = ic_func_etaa0
  [../]
  [./IC_etab0]
    type = FunctionIC
    variable = etab0
    function = ic_func_etab0
  [../]
  [./IC_etad0]
    type = ConstantIC
    variable = etad0
    value = 0.1
  [../]
  [./IC_w]
    type = FunctionIC
    variable = w
    function = ic_func_w
  [../]
[]

[Functions]
  [./ic_func_etaa0]
    type = ParsedFunction
    expression = '0.9*0.5*(1.0-tanh((x)/sqrt(2.0)))'
  [../]
  [./ic_func_etab0]
    type = ParsedFunction
    expression = '0.9*0.5*(1.0+tanh((x)/sqrt(2.0)))'
  [../]
  [./ic_func_w]
    type = ParsedFunction
    expression = 0
  [../]
[]

[Kernels]
# Order parameter eta_alpha0
  [./ACa0_bulk]
    type = ACGrGrMulti
    variable = etaa0
    v =           'etab0 etad0'
    gamma_names = 'gab   gad'
  [../]
  [./ACa0_sw]
    type = ACSwitching
    variable = etaa0
    Fj_names  = 'omegaa omegab omegad'
    hj_names  = 'ha     hb     hd'
    coupled_variables = 'etab0 etad0 w'
  [../]
  [./ACa0_int]
    type = ACInterface
    variable = etaa0
    kappa_name = kappa
  [../]
  [./ea0_dot]
    type = TimeDerivative
    variable = etaa0
  [../]
# Order parameter eta_beta0
  [./ACb0_bulk]
    type = ACGrGrMulti
    variable = etab0
    v =           'etaa0 etad0'
    gamma_names = 'gab   gbd'
  [../]
  [./ACb0_sw]
    type = ACSwitching
    variable = etab0
    Fj_names  = 'omegaa omegab omegad'
    hj_names  = 'ha     hb     hd'
    coupled_variables = 'etaa0 etad0 w'
  [../]
  [./ACb0_int]
    type = ACInterface
    variable = etab0
    kappa_name = kappa
  [../]
  [./eb0_dot]
    type = TimeDerivative
    variable = etab0
  [../]
# Order parameter eta_delta0
  [./ACd0_bulk]
    type = ACGrGrMulti
    variable = etad0
    v =           'etaa0 etab0'
    gamma_names = 'gad   gbd'
  [../]
  [./ACd0_sw]
    type = ACSwitching
    variable = etad0
    Fj_names  = 'omegaa omegab omegad'
    hj_names  = 'ha     hb     hd'
    coupled_variables = 'etaa0 etab0 w'
  [../]
  [./ACd0_int]
    type = ACInterface
    variable = etad0
    kappa_name = kappa
  [../]
  [./ed0_dot]
    type = TimeDerivative
    variable = etad0
  [../]
#Chemical potential
  [./w_dot]
    type = SusceptibilityTimeDerivative
    variable = w
    f_name = chi
    coupled_variables = 'etaa0 etab0 etad0'
  [../]
  [./Diffusion]
    type = MatDiffusion
    variable = w
    diffusivity = Dchi
    args = ''
  [../]
  [./coupled_etaa0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etaa0
    Fj_names = 'rhoa rhob rhod'
    hj_names = 'ha   hb   hd'
    coupled_variables = 'etaa0 etab0 etad0'
  [../]
  [./coupled_etab0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etab0
    Fj_names = 'rhoa rhob rhod'
    hj_names = 'ha   hb   hd'
    coupled_variables = 'etaa0 etab0 etad0'
  [../]
  [./coupled_etad0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etad0
    Fj_names = 'rhoa rhob rhod'
    hj_names = 'ha   hb   hd'
    coupled_variables = 'etaa0 etab0 etad0'
  [../]
[]

[Materials]
  [./ha_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = ha
    all_etas = 'etaa0 etab0 etad0'
    phase_etas = 'etaa0'
  [../]
  [./hb_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hb
    all_etas = 'etaa0 etab0 etad0'
    phase_etas = 'etab0'
  [../]
  [./hd_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hd
    all_etas = 'etaa0 etab0 etad0'
    phase_etas = 'etad0'
  [../]
  [./omegaa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegaa
    material_property_names = 'Vm ka caeq'
    expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
    derivative_order = 2
  [../]
  [./omegab]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegab
    material_property_names = 'Vm kb cbeq'
    expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq'
    derivative_order = 2
  [../]
  [./omegad]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegad
    material_property_names = 'Vm kd cdeq'
    expression = '-0.5*w^2/Vm^2/kd-w/Vm*cdeq'
    derivative_order = 2
  [../]
  [./rhoa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhoa
    material_property_names = 'Vm ka caeq'
    expression = 'w/Vm^2/ka + caeq/Vm'
    derivative_order = 2
  [../]
  [./rhob]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhob
    material_property_names = 'Vm kb cbeq'
    expression = 'w/Vm^2/kb + cbeq/Vm'
    derivative_order = 2
  [../]
  [./rhod]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhod
    material_property_names = 'Vm kd cdeq'
    expression = 'w/Vm^2/kd + cdeq/Vm'
    derivative_order = 2
  [../]
  [./c]
    type = ParsedMaterial
    material_property_names = 'Vm rhoa rhob rhod ha hb hd'
    expression = 'Vm * (ha * rhoa + hb * rhob + hd * rhod)'
    property_name = c
  [../]
  [./const]
    type = GenericConstantMaterial
    prop_names =  'kappa_c  kappa   L   D    Vm   ka    caeq kb    cbeq  kd    cdeq  gab gad gbd  mu  tgrad_corr_mult'
    prop_values = '0        1       1.0 1.0  1.0  10.0  0.1  10.0  0.9   10.0  0.5   1.5 1.5 1.5  1.0 0.0'
  [../]
  [./Mobility]
    type = DerivativeParsedMaterial
    property_name = Dchi
    material_property_names = 'D chi'
    expression = 'D*chi'
    derivative_order = 2
  [../]
  [./chi]
    type = DerivativeParsedMaterial
    property_name = chi
    material_property_names = 'Vm ha(etaa0,etab0,etad0) ka hb(etaa0,etab0,etad0) kb hd(etaa0,etab0,etad0) kd'
    expression = '(ha/ka + hb/kb + hd/kd) / Vm^2'
    coupled_variables = 'etaa0 etab0 etad0'
    derivative_order = 2
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[VectorPostprocessors]
  [./etaa0]
    type = LineValueSampler
    variable = etaa0
    start_point = '-15 0 0'
    end_point = '15 0 0'
    num_points = 61
    sort_by = x
    execute_on = 'initial timestep_end final'
  [../]
  [./etab0]
    type = LineValueSampler
    variable = etab0
    start_point = '-15 0 0'
    end_point = '15 0 0'
    num_points = 61
    sort_by = x
    execute_on = 'initial timestep_end final'
  [../]
  [./etad0]
    type = LineValueSampler
    variable = etad0
    start_point = '-15 0 0'
    end_point = '15 0 0'
    num_points = 61
    sort_by = x
    execute_on = 'initial timestep_end final'
  [../]
[]

[Executioner]
  type = Transient
  nl_max_its = 15
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = -pc_type
  petsc_options_value = asm
  l_max_its = 15
  l_tol = 1.0e-3
  nl_rel_tol = 1.0e-8
  start_time = 0.0
  num_steps = 20
  nl_abs_tol = 1e-10
  dt = 1.0
[]

[Outputs]
  [./exodus]
    type = Exodus
    execute_on = 'initial timestep_end final'
    time_step_interval = 1
  [../]
  [./csv]
    type = CSV
    execute_on = 'initial timestep_end final'
    time_step_interval = 1
  [../]
[]

(test/tests/auxkernels/element_aux_boundary/element_aux_boundary.i)

[Mesh]
  type = FileMesh
  file = rectangle.e
  dim = 2
  uniform_refine = 2
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./real_property]
    family = MONOMIAL
    order = CONSTANT
  [../]
[]

[AuxKernels]
  [./real_property]
    type = MaterialRealAux
    variable = real_property
    property = real_property
    boundary = '1 2'
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  [../]
[]

[Materials]
  [./boundary_1]
    type = OutputTestMaterial
    boundary = 1
    real_factor = 2
    variable = u
  [../]
  [./boundary_2]
    type = OutputTestMaterial
    boundary = 2
    real_factor = 2
    variable = u
 [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/grain_tracker_test/grain_tracker_reserve.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 40
  ny = 40
  xmin = 0
  xmax = 100
  ymin = 0
  ymax = 100
  elem_type = QUAD4
[]

[AuxVariables]
  [./c]
  [../]
[]

[Variables]
  [./gr0]
  [../]
  [./gr1]
  [../]
[]

[ICs]
  [./gr0]
    type = MultiSmoothCircleIC
    variable = gr0
    invalue = 1.0
    outvalue = 0.0001
    bubspac = 20.0
    numbub = 2
    radius = 10.0
    int_width = 12.0
    radius_variation = 0.2
    radius_variation_type = uniform
  [../]
  [./c_IC]
    type = SmoothCircleIC
    int_width = 12.0
    x1 = 50
    y1 = 50
    radius = 10.0
    outvalue = 0
    variable = c
    invalue = 1
  [../]
[]

[Kernels]
  [./ie_gr0]
    type = TimeDerivative
    variable = gr0
  [../]
  [./diff_gr0]
    type = Diffusion
    variable = gr0
  [../]
  [./ie_gr1]
    type = TimeDerivative
    variable = gr1
  [../]
  [./diff_gr1]
    type = Diffusion
    variable = gr1
  [../]
  [./source]
    type = MaskedBodyForce
    variable = gr1
    function = t
    mask = mask
  [../]
[]

[Materials]
  [./mask]
    type = ParsedMaterial
    expression = 'c'
    property_name = mask
    coupled_variables = 'c'
  [../]
[]

[Postprocessors]
  [./grain_tracker]
    type = GrainTracker

    # Reserve the first "op" variable
    reserve_op = 1
    threshold = 0.1
    connecting_threshold = 0.001
    variable = 'gr0 gr1'
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  num_steps = 6
  dt = 0.25
[]

[Outputs]
  exodus = true
[]

[Problem]
  kernel_coverage_check = false
[]

(test/tests/kernels/coupled_time_derivative/coupled_time_derivative_test.i)

###########################################################
# This is a simple test of the CoupledTimeDerivative kernel.
# The expected solution for the variable v is
# v(x) = 1/2 * (x^2 + x)
###########################################################

[Mesh]
  type = GeneratedMesh
  nx = 5
  ny = 5
  dim = 2
[]

[Variables]
  [./u]
  [../]
  [./v]
  [../]
[]

[Kernels]
  [./time_u]
    type = TimeDerivative
    variable = u
  [../]
  [./fn_u]
    type = BodyForce
    variable = u
    function = 1
  [../]
  [./time_v]
    type = CoupledTimeDerivative
    variable = v
    v = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = v
    boundary = 'left'
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = v
    boundary = 'right'
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  solve_type = 'NEWTON'
[]

[Outputs]
  exodus = true
[]

(test/tests/restart/restart_diffusion/restart_diffusion_test_transient.i)

[Mesh]
  file = steady_out.e
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    initial_from_file_var = u
    initial_from_file_timestep = 2
  [../]
[]

[Kernels]
  active = 'bodyforce ie'

  [./bodyforce]
    type = BodyForce
    variable = u
    value = 10.0
  [../]

  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 10
  dt = .1
[]

[Outputs]
  file_base = out
  exodus = true
[]

(modules/phase_field/test/tests/slkks/full_solve.i)

#
# SLKKS two phase example for the BCC and SIGMA phases. The sigma phase contains
# multiple sublattices. Free energy from
# Jacob, Aurelie, Erwin Povoden-Karadeniz, and Ernst Kozeschnik. "Revised thermodynamic
# description of the Fe-Cr system based on an improved sublattice model of the sigma phase."
# Calphad 60 (2018): 16-28.
#
# In this simulation we consider diffusion (Cahn-Hilliard) and phase transformation.
#

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 30
    ny = 1
    xmin = -25
    xmax = 25
  []
[]

[AuxVariables]
  [Fglobal]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Variables]
  # order parameters
  [eta1]
    initial_condition = 0.5
  []
  [eta2]
    initial_condition = 0.5
  []

  # solute concentration
  [cCr]
    order = FIRST
    family = LAGRANGE
    [InitialCondition]
      type = FunctionIC
      function = '(x+25)/50*0.5+0.1'
    []
  []

  # sublattice concentrations (good guesses are needed here! - they can be obtained
  # form a static solve like in sublattice_concentrations.i)
  [BCC_CR]
    [InitialCondition]
      type = FunctionIC
      function = '(x+25)/50*0.5+0.1'
    []
  []
  [SIGMA_0CR]
    [InitialCondition]
      type = FunctionIC
      function = '(x+25)/50*0.17+0.01'
    []
  []
  [SIGMA_1CR]
    [InitialCondition]
      type = FunctionIC
      function = '(x+25)/50*0.36+0.02'
    []
  []
  [SIGMA_2CR]
    [InitialCondition]
      type = FunctionIC
      function = '(x+25)/50*0.33+0.20'
    []
  []

  # Lagrange multiplier
  [lambda]
  []
[]

[Materials]
  # CALPHAD free energies
  [F_BCC_A2]
    type = DerivativeParsedMaterial
    property_name = F_BCC_A2
    outputs = exodus
    output_properties = F_BCC_A2
    expression = 'BCC_FE:=1-BCC_CR; G := 8.3145*T*(1.0*if(BCC_CR > 1.0e-15,BCC_CR*log(BCC_CR),0) + '
               '1.0*if(BCC_FE > 1.0e-15,BCC_FE*plog(BCC_FE,eps),0) + 3.0*if(BCC_VA > '
               '1.0e-15,BCC_VA*log(BCC_VA),0))/(BCC_CR + BCC_FE) + 8.3145*T*if(T < '
               '548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - 932.5*BCC_CR*BCC_FE*BCC_VA + '
               '311.5*BCC_CR*BCC_VA - '
               '1043.0*BCC_FE*BCC_VA,-8.13674105561218e-49*T^15/(0.525599232981783*BCC_CR*BCC_FE*BCC_'
               'VA*(BCC_CR - BCC_FE) - 0.894055608820709*BCC_CR*BCC_FE*BCC_VA + '
               '0.298657718120805*BCC_CR*BCC_VA - BCC_FE*BCC_VA + 9.58772770853308e-13)^15 - '
               '4.65558036243985e-30*T^9/(0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA + 0.298657718120805*BCC_CR*BCC_VA - '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^9 - '
               '1.3485349181899e-10*T^3/(0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA + 0.298657718120805*BCC_CR*BCC_VA - '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^3 + 1 - '
               '0.905299382744392*(548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - '
               '932.5*BCC_CR*BCC_FE*BCC_VA + 311.5*BCC_CR*BCC_VA - 1043.0*BCC_FE*BCC_VA + '
               '1.0e-9)/T,if(T < -548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) + '
               '932.5*BCC_CR*BCC_FE*BCC_VA - 311.5*BCC_CR*BCC_VA + '
               '1043.0*BCC_FE*BCC_VA,-8.13674105561218e-49*T^15/(-0.525599232981783*BCC_CR*BCC_FE*BCC'
               '_VA*(BCC_CR - BCC_FE) + 0.894055608820709*BCC_CR*BCC_FE*BCC_VA - '
               '0.298657718120805*BCC_CR*BCC_VA + BCC_FE*BCC_VA + 9.58772770853308e-13)^15 - '
               '4.65558036243985e-30*T^9/(-0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) '
               '+ 0.894055608820709*BCC_CR*BCC_FE*BCC_VA - 0.298657718120805*BCC_CR*BCC_VA + '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^9 - '
               '1.3485349181899e-10*T^3/(-0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) + '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA - 0.298657718120805*BCC_CR*BCC_VA + '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^3 + 1 - '
               '0.905299382744392*(-548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) + '
               '932.5*BCC_CR*BCC_FE*BCC_VA - 311.5*BCC_CR*BCC_VA + 1043.0*BCC_FE*BCC_VA + '
               '1.0e-9)/T,if(T > -548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) + '
               '932.5*BCC_CR*BCC_FE*BCC_VA - 311.5*BCC_CR*BCC_VA + 1043.0*BCC_FE*BCC_VA & '
               '548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - 932.5*BCC_CR*BCC_FE*BCC_VA + '
               '311.5*BCC_CR*BCC_VA - 1043.0*BCC_FE*BCC_VA < '
               '0,-79209031311018.7*(-0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) + '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA - 0.298657718120805*BCC_CR*BCC_VA + '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^5/T^5 - '
               '3.83095660520737e+42*(-0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) + '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA - 0.298657718120805*BCC_CR*BCC_VA + '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^15/T^15 - '
               '1.22565886734485e+72*(-0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) + '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA - 0.298657718120805*BCC_CR*BCC_VA + '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^25/T^25,if(T > '
               '548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - 932.5*BCC_CR*BCC_FE*BCC_VA + '
               '311.5*BCC_CR*BCC_VA - 1043.0*BCC_FE*BCC_VA & 548.2*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - '
               'BCC_FE) - 932.5*BCC_CR*BCC_FE*BCC_VA + 311.5*BCC_CR*BCC_VA - 1043.0*BCC_FE*BCC_VA > '
               '0,-79209031311018.7*(0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA + 0.298657718120805*BCC_CR*BCC_VA - '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^5/T^5 - '
               '3.83095660520737e+42*(0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA + 0.298657718120805*BCC_CR*BCC_VA - '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^15/T^15 - '
               '1.22565886734485e+72*(0.525599232981783*BCC_CR*BCC_FE*BCC_VA*(BCC_CR - BCC_FE) - '
               '0.894055608820709*BCC_CR*BCC_FE*BCC_VA + 0.298657718120805*BCC_CR*BCC_VA - '
               'BCC_FE*BCC_VA + 9.58772770853308e-13)^25/T^25,0))))*log((2.15*BCC_CR*BCC_FE*BCC_VA - '
               '0.008*BCC_CR*BCC_VA + 2.22*BCC_FE*BCC_VA)*if(2.15*BCC_CR*BCC_FE*BCC_VA - '
               '0.008*BCC_CR*BCC_VA + 2.22*BCC_FE*BCC_VA <= 0,-1.0,1.0) + 1)/(BCC_CR + BCC_FE) + '
               '1.0*(BCC_CR*BCC_VA*if(T >= 298.15 & T < 2180.0,139250.0*1/T - 26.908*T*log(T) + '
               '157.48*T + 0.00189435*T^2.0 - 1.47721e-6*T^3.0 - 8856.94,if(T >= 2180.0 & T < '
               '6000.0,-2.88526e+32*T^(-9.0) - 50.0*T*log(T) + 344.18*T - 34869.344,0)) + '
               'BCC_FE*BCC_VA*if(T >= 298.15 & T < 1811.0,77358.5*1/T - 23.5143*T*log(T) + 124.134*T '
               '- 0.00439752*T^2.0 - 5.89269e-8*T^3.0 + 1225.7,if(T >= 1811.0 & T < '
               '6000.0,2.2960305e+31*T^(-9.0) - 46.0*T*log(T) + 299.31255*T - 25383.581,0)))/(BCC_CR '
               '+ BCC_FE) + 1.0*(BCC_CR*BCC_FE*BCC_VA*(500.0 - 1.5*T)*(BCC_CR - BCC_FE) + '
               'BCC_CR*BCC_FE*BCC_VA*(24600.0 - 14.98*T) + BCC_CR*BCC_FE*BCC_VA*(9.15*T - '
               '14000.0)*(BCC_CR - BCC_FE)^2)/(BCC_CR + BCC_FE); G/100000'
    coupled_variables = 'BCC_CR'
    constant_names = 'BCC_VA T eps'
    constant_expressions = '1 1000 0.01'
  []

  [F_SIGMA]
    type = DerivativeParsedMaterial
    property_name = F_SIGMA
    outputs = exodus
    output_properties = F_SIGMA
    expression = 'SIGMA_0FE := 1-SIGMA_0CR; SIGMA_1FE := 1-SIGMA_1CR; SIGMA_2FE := 1-SIGMA_2CR; G := '
               '8.3145*T*(10.0*if(SIGMA_0CR > 1.0e-15,SIGMA_0CR*plog(SIGMA_0CR,eps),0) + '
               '10.0*if(SIGMA_0FE > 1.0e-15,SIGMA_0FE*plog(SIGMA_0FE,eps),0) + 4.0*if(SIGMA_1CR > '
               '1.0e-15,SIGMA_1CR*plog(SIGMA_1CR,eps),0) + 4.0*if(SIGMA_1FE > '
               '1.0e-15,SIGMA_1FE*plog(SIGMA_1FE,eps),0) + 16.0*if(SIGMA_2CR > '
               '1.0e-15,SIGMA_2CR*plog(SIGMA_2CR,eps),0) + 16.0*if(SIGMA_2FE > '
               '1.0e-15,SIGMA_2FE*plog(SIGMA_2FE,eps),0))/(10.0*SIGMA_0CR + 10.0*SIGMA_0FE + '
               '4.0*SIGMA_1CR + 4.0*SIGMA_1FE + 16.0*SIGMA_2CR + 16.0*SIGMA_2FE) + '
               '(SIGMA_0FE*SIGMA_1CR*SIGMA_2CR*SIGMA_2FE*(-70.0*T - 170400.0) + '
               'SIGMA_0FE*SIGMA_1FE*SIGMA_2CR*SIGMA_2FE*(-10.0*T - 330839.0))/(10.0*SIGMA_0CR + '
               '10.0*SIGMA_0FE + 4.0*SIGMA_1CR + 4.0*SIGMA_1FE + 16.0*SIGMA_2CR + 16.0*SIGMA_2FE) + '
               '(SIGMA_0CR*SIGMA_1CR*SIGMA_2CR*(30.0*if(T >= 298.15 & T < 2180.0,139250.0*1/T - '
               '26.908*T*log(T) + 157.48*T + 0.00189435*T^2.0 - 1.47721e-6*T^3.0 - 8856.94,if(T >= '
               '2180.0 & T < 6000.0,-2.88526e+32*T^(-9.0) - 50.0*T*log(T) + 344.18*T - 34869.344,0)) '
               '+ 132000.0) + SIGMA_0CR*SIGMA_1CR*SIGMA_2FE*(-110.0*T + 16.0*if(T >= 298.15 & T < '
               '1811.0,77358.5*1/T - 23.5143*T*log(T) + 124.134*T - 0.00439752*T^2.0 - '
               '5.89269e-8*T^3.0 + 1225.7,if(T >= 1811.0 & T < 6000.0,2.2960305e+31*T^(-9.0) - '
               '46.0*T*log(T) + 299.31255*T - 25383.581,0)) + 14.0*if(T >= 298.15 & T < '
               '2180.0,139250.0*1/T - 26.908*T*log(T) + 157.48*T + 0.00189435*T^2.0 - '
               '1.47721e-6*T^3.0 - 8856.94,if(T >= 2180.0 & T < 6000.0,-2.88526e+32*T^(-9.0) - '
               '50.0*T*log(T) + 344.18*T - 34869.344,0)) + 123500.0) + '
               'SIGMA_0CR*SIGMA_1FE*SIGMA_2CR*(4.0*if(T >= 298.15 & T < 1811.0,77358.5*1/T - '
               '23.5143*T*log(T) + 124.134*T - 0.00439752*T^2.0 - 5.89269e-8*T^3.0 + 1225.7,if(T >= '
               '1811.0 & T < 6000.0,2.2960305e+31*T^(-9.0) - 46.0*T*log(T) + 299.31255*T - '
               '25383.581,0)) + 26.0*if(T >= 298.15 & T < 2180.0,139250.0*1/T - 26.908*T*log(T) + '
               '157.48*T + 0.00189435*T^2.0 - 1.47721e-6*T^3.0 - 8856.94,if(T >= 2180.0 & T < '
               '6000.0,-2.88526e+32*T^(-9.0) - 50.0*T*log(T) + 344.18*T - 34869.344,0)) + 140486.0) '
               '+ SIGMA_0CR*SIGMA_1FE*SIGMA_2FE*(20.0*if(T >= 298.15 & T < 1811.0,77358.5*1/T - '
               '23.5143*T*log(T) + 124.134*T - 0.00439752*T^2.0 - 5.89269e-8*T^3.0 + 1225.7,if(T >= '
               '1811.0 & T < 6000.0,2.2960305e+31*T^(-9.0) - 46.0*T*log(T) + 299.31255*T - '
               '25383.581,0)) + 10.0*if(T >= 298.15 & T < 2180.0,139250.0*1/T - 26.908*T*log(T) + '
               '157.48*T + 0.00189435*T^2.0 - 1.47721e-6*T^3.0 - 8856.94,if(T >= 2180.0 & T < '
               '6000.0,-2.88526e+32*T^(-9.0) - 50.0*T*log(T) + 344.18*T - 34869.344,0)) + 148800.0) '
               '+ SIGMA_0FE*SIGMA_1CR*SIGMA_2CR*(10.0*if(T >= 298.15 & T < 1811.0,77358.5*1/T - '
               '23.5143*T*log(T) + 124.134*T - 0.00439752*T^2.0 - 5.89269e-8*T^3.0 + 1225.7,if(T >= '
               '1811.0 & T < 6000.0,2.2960305e+31*T^(-9.0) - 46.0*T*log(T) + 299.31255*T - '
               '25383.581,0)) + 20.0*if(T >= 298.15 & T < 2180.0,139250.0*1/T - 26.908*T*log(T) + '
               '157.48*T + 0.00189435*T^2.0 - 1.47721e-6*T^3.0 - 8856.94,if(T >= 2180.0 & T < '
               '6000.0,-2.88526e+32*T^(-9.0) - 50.0*T*log(T) + 344.18*T - 34869.344,0)) + 56200.0) + '
               'SIGMA_0FE*SIGMA_1CR*SIGMA_2FE*(26.0*if(T >= 298.15 & T < 1811.0,77358.5*1/T - '
               '23.5143*T*log(T) + 124.134*T - 0.00439752*T^2.0 - 5.89269e-8*T^3.0 + 1225.7,if(T >= '
               '1811.0 & T < 6000.0,2.2960305e+31*T^(-9.0) - 46.0*T*log(T) + 299.31255*T - '
               '25383.581,0)) + 4.0*if(T >= 298.15 & T < 2180.0,139250.0*1/T - 26.908*T*log(T) + '
               '157.48*T + 0.00189435*T^2.0 - 1.47721e-6*T^3.0 - 8856.94,if(T >= 2180.0 & T < '
               '6000.0,-2.88526e+32*T^(-9.0) - 50.0*T*log(T) + 344.18*T - 34869.344,0)) + 152700.0) '
               '+ SIGMA_0FE*SIGMA_1FE*SIGMA_2CR*(14.0*if(T >= 298.15 & T < 1811.0,77358.5*1/T - '
               '23.5143*T*log(T) + 124.134*T - 0.00439752*T^2.0 - 5.89269e-8*T^3.0 + 1225.7,if(T >= '
               '1811.0 & T < 6000.0,2.2960305e+31*T^(-9.0) - 46.0*T*log(T) + 299.31255*T - '
               '25383.581,0)) + 16.0*if(T >= 298.15 & T < 2180.0,139250.0*1/T - 26.908*T*log(T) + '
               '157.48*T + 0.00189435*T^2.0 - 1.47721e-6*T^3.0 - 8856.94,if(T >= 2180.0 & T < '
               '6000.0,-2.88526e+32*T^(-9.0) - 50.0*T*log(T) + 344.18*T - 34869.344,0)) + 46200.0) + '
               'SIGMA_0FE*SIGMA_1FE*SIGMA_2FE*(30.0*if(T >= 298.15 & T < 1811.0,77358.5*1/T - '
               '23.5143*T*log(T) + 124.134*T - 0.00439752*T^2.0 - 5.89269e-8*T^3.0 + 1225.7,if(T >= '
               '1811.0 & T < 6000.0,2.2960305e+31*T^(-9.0) - 46.0*T*log(T) + 299.31255*T - '
               '25383.581,0)) + 173333.0))/(10.0*SIGMA_0CR + 10.0*SIGMA_0FE + 4.0*SIGMA_1CR + '
               '4.0*SIGMA_1FE + 16.0*SIGMA_2CR + 16.0*SIGMA_2FE); G/100000'
    coupled_variables = 'SIGMA_0CR SIGMA_1CR SIGMA_2CR'
    constant_names = 'T eps'
    constant_expressions = '1000 0.01'
  []

  # h(eta)
  [h1]
    type = SwitchingFunctionMaterial
    function_name = h1
    h_order = HIGH
    eta = eta1
  []
  [h2]
    type = SwitchingFunctionMaterial
    function_name = h2
    h_order = HIGH
    eta = eta2
  []

  # g(eta)
  [g1]
    type = BarrierFunctionMaterial
    function_name = g1
    g_order = SIMPLE
    eta = eta1
  []
  [g2]
    type = BarrierFunctionMaterial
    function_name = g2
    g_order = SIMPLE
    eta = eta2
  []

  # constant properties
  [constants]
    type = GenericConstantMaterial
    prop_names = 'D   L   kappa'
    prop_values = '10  1   0.1  '
  []

  # Coefficients for diffusion equation
  [Dh1]
    type = DerivativeParsedMaterial
    material_property_names = 'D h1(eta1)'
    expression = D*h1
    property_name = Dh1
    coupled_variables = eta1
    derivative_order = 1
  []
  [Dh2a]
    type = DerivativeParsedMaterial
    material_property_names = 'D h2(eta2)'
    expression = D*h2*10/30
    property_name = Dh2a
    coupled_variables = eta2
    derivative_order = 1
  []
  [Dh2b]
    type = DerivativeParsedMaterial
    material_property_names = 'D h2(eta2)'
    expression = D*h2*4/30
    property_name = Dh2b
    coupled_variables = eta2
    derivative_order = 1
  []
  [Dh2c]
    type = DerivativeParsedMaterial
    material_property_names = 'D h2(eta2)'
    expression = D*h2*16/30
    property_name = Dh2c
    coupled_variables = eta2
    derivative_order = 1
  []
[]

[Kernels]
  #Kernels for diffusion equation
  [diff_time]
    type = TimeDerivative
    variable = cCr
  []
  [diff_c1]
    type = MatDiffusion
    variable = cCr
    diffusivity = Dh1
    v = BCC_CR
    args = eta1
  []
  [diff_c2a]
    type = MatDiffusion
    variable = cCr
    diffusivity = Dh2a
    v = SIGMA_0CR
    args = eta2
  []
  [diff_c2b]
    type = MatDiffusion
    variable = cCr
    diffusivity = Dh2b
    v = SIGMA_1CR
    args = eta2
  []
  [diff_c2c]
    type = MatDiffusion
    variable = cCr
    diffusivity = Dh2c
    v = SIGMA_2CR
    args = eta2
  []

  # enforce pointwise equality of chemical potentials
  [chempot1a2a]
    # The BCC phase has only one sublattice
    # we tie it to the first sublattice with site fraction 10/(10+4+16) in the sigma phase
    type = KKSPhaseChemicalPotential
    variable = BCC_CR
    cb = SIGMA_0CR
    kb = '${fparse 10/30}'
    fa_name = F_BCC_A2
    fb_name = F_SIGMA
    args_b = 'SIGMA_1CR SIGMA_2CR'
  []
  [chempot2a2b]
    # This kernel ties the first two sublattices in the sigma phase together
    type = SLKKSChemicalPotential
    variable = SIGMA_0CR
    a = 10
    cs = SIGMA_1CR
    as = 4
    F = F_SIGMA
    coupled_variables = 'SIGMA_2CR'
  []
  [chempot2b2c]
    # This kernel ties the remaining two sublattices in the sigma phase together
    type = SLKKSChemicalPotential
    variable = SIGMA_1CR
    a = 4
    cs = SIGMA_2CR
    as = 16
    F = F_SIGMA
    coupled_variables = 'SIGMA_0CR'
  []

  [phaseconcentration]
    # This kernel ties the sum of the sublattice concentrations to the global concentration cCr
    type = SLKKSMultiPhaseConcentration
    variable = SIGMA_2CR
    c = cCr
    ns = '1      3'
    as = '1      10        4         16'
    cs = 'BCC_CR SIGMA_0CR SIGMA_1CR SIGMA_2CR'
    h_names = 'h1   h2'
    eta = 'eta1 eta2'
  []

  # Kernels for Allen-Cahn equation for eta1
  [deta1dt]
    type = TimeDerivative
    variable = eta1
  []
  [ACBulkF1]
    type = KKSMultiACBulkF
    variable = eta1
    Fj_names = 'F_BCC_A2 F_SIGMA'
    hj_names = 'h1    h2'
    gi_name = g1
    eta_i = eta1
    wi = 0.1
    coupled_variables = 'BCC_CR SIGMA_0CR SIGMA_1CR SIGMA_2CR eta2'
  []
  [ACBulkC1]
    type = SLKKSMultiACBulkC
    variable = eta1
    F = F_BCC_A2
    c = BCC_CR
    ns = '1      3'
    as = '1      10        4         16'
    cs = 'BCC_CR SIGMA_0CR SIGMA_1CR SIGMA_2CR'
    h_names = 'h1   h2'
    eta = 'eta1 eta2'
  []
  [ACInterface1]
    type = ACInterface
    variable = eta1
    kappa_name = kappa
  []
  [lagrange1]
    type = SwitchingFunctionConstraintEta
    variable = eta1
    h_name = h1
    lambda = lambda
    coupled_variables = 'eta2'
  []

  # Kernels for Allen-Cahn equation for eta1
  [deta2dt]
    type = TimeDerivative
    variable = eta2
  []
  [ACBulkF2]
    type = KKSMultiACBulkF
    variable = eta2
    Fj_names = 'F_BCC_A2 F_SIGMA'
    hj_names = 'h1    h2'
    gi_name = g2
    eta_i = eta2
    wi = 0.1
    coupled_variables = 'BCC_CR SIGMA_0CR SIGMA_1CR SIGMA_2CR eta1'
  []
  [ACBulkC2]
    type = SLKKSMultiACBulkC
    variable = eta2
    F = F_BCC_A2
    c = BCC_CR
    ns = '1      3'
    as = '1      10        4         16'
    cs = 'BCC_CR SIGMA_0CR SIGMA_1CR SIGMA_2CR'
    h_names = 'h1   h2'
    eta = 'eta1 eta2'
  []
  [ACInterface2]
    type = ACInterface
    variable = eta2
    kappa_name = kappa
  []
  [lagrange2]
    type = SwitchingFunctionConstraintEta
    variable = eta2
    h_name = h2
    lambda = lambda
    coupled_variables = 'eta1'
  []

  # Lagrange-multiplier constraint kernel for lambda
  [lagrange]
    type = SwitchingFunctionConstraintLagrange
    variable = lambda
    h_names = 'h1   h2'
    etas = 'eta1 eta2'
    epsilon = 1e-6
  []
[]

[AuxKernels]
  [GlobalFreeEnergy]
    type = KKSMultiFreeEnergy
    variable = Fglobal
    Fj_names = 'F_BCC_A2 F_SIGMA'
    hj_names = 'h1 h2'
    gj_names = 'g1 g2'
    interfacial_vars = 'eta1 eta2'
    kappa_names = 'kappa kappa'
    w = 0.1
  []
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  line_search = none

  petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type -ksp_gmres_restart'
  petsc_options_value = 'asm      lu          nonzero                    30'

  l_max_its = 100
  nl_max_its = 20
  nl_abs_tol = 1e-10

  end_time = 1000

  [TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 12
    iteration_window = 2
    growth_factor = 2
    cutback_factor = 0.5
    dt = 0.1
  []
[]

[Postprocessors]
  [F]
    type = ElementIntegralVariablePostprocessor
    variable = Fglobal
  []
  [cmin]
    type = NodalExtremeValue
    value_type = min
    variable = cCr
  []
  [cmax]
    type = NodalExtremeValue
    value_type = max
    variable = cCr
  []
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
  # exclude lagrange multiplier from output, it can diff more easily
  hide = lambda
[]

(modules/phase_field/test/tests/phase_field_crystal/PFCTrad/pfct_newton_split1_asm1_10.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  xmax = 8
  ymax = 8
[]

[Variables]
  [./n]
    [./InitialCondition]
      type = RandomIC
      min = -1
      max = 4
    [../]
  [../]
  [./u]
    scaling = 1e2
  [../]
  [./v]
    scaling = 1e1
  [../]
[]

[Kernels]
  [./ndot]
    type = TimeDerivative
    variable = n
  [../]
  [./n_bulk]
    type = CHBulkPFCTrad
    variable = n
  [../]
  [./u_term]
    type = MatDiffusion
    variable = n
    v = u
    diffusivity = C2
  [../]
  [./v_term]
    type = MatDiffusion
    variable = n
    v = v
    diffusivity = C4
  [../]
  [./u_rctn]
    type = Reaction
    variable = u
  [../]
  [./u_gradn]
    type = LaplacianSplit
    variable = u
    c = n
  [../]
  [./v_rctn]
    type = Reaction
    variable = v
  [../]
  [./v_gradu]
    type = LaplacianSplit
    variable = v
    c = u
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./PFCTrad]
    type = PFCTradMaterial
    order = 4
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'

  l_max_its = 100
  l_tol = 1e-04
  nl_rel_tol = 1e-09
  nl_abs_tol = 1e-11

  splitting = 'nuv'
  petsc_options = '-snes_view'

  num_steps = 2
  dt = 0.1
[]

[Splits]
  [./nuv]
    splitting       = 'v nu'
    splitting_type  = schur
    schur_type      = full
    schur_pre       = Sp
    #petsc_options = '-dm_view'
  [../]
  [./nu]
    vars = 'n u'
    petsc_options = '-ksp_monitor'
    petsc_options_iname = '-ksp_gmres_restart -pc_type -pc_asm_nblocks -pc_asm_overlap  -sub_pc_type'
    petsc_options_value =  '              101      asm              10               1            lu'
  [../]
  [./v]
    vars = 'v'
    #petsc_options = '-ksp_monitor'
    petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
    petsc_options_value =  'asm         101   preonly   lu      0'
    #full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/01_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1.

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = '01_sub.i'
  []
[]

(test/tests/nodalkernels/jac_test/jac_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./nodal_ode]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[NodalKernels]
  [./td]
    type = TimeDerivativeNodalKernel
    variable = nodal_ode
  [../]
  [./constant_rate]
    type = ConstantRate
    variable = nodal_ode
    rate = 1.0
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = NEWTON
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
  nl_max_its = 1
[]

[Outputs]
  exodus = true
[]

(modules/heat_transfer/test/tests/directional_flux_bc/3d_elem.i)

[Mesh]
  [shade]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 1
    ny = 3
    nz = 3
    xmax = 0.2
    ymax = 0.5
    zmax = 0.5
  []

  [screen]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 1
    ny = 20
    nz = 20
    xmax = 0.05
  []
  [screen_block]
    type = SubdomainIDGenerator
    input = screen
    subdomain_id = 1
  []

  [combine]
    type = CombinerGenerator
    inputs = 'shade screen_block'
    positions = '0 0 0 1 0 0'
  []

  [all_sides]
    type = SideSetsAroundSubdomainGenerator
    block = '0 1'
    new_boundary = 100
    input = combine
  []
  [shaded_side]
    type = SideSetsAroundSubdomainGenerator
    normal = '-1 0 0'
    block = 1
    input = all_sides
    new_boundary = 101
  []
[]

[GlobalParams]
  illumination_flux = '1 0 0'
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [dt]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [flux]
    type = DirectionalFluxBC
    variable = u
    boundary = 101
    self_shadow_uo = shadow
  []
[]

[UserObjects]
  [shadow]
    type = SelfShadowSideUserObject
    boundary = 100
    execute_on = INITIAL
  []
[]

[Postprocessors]
  [light]
    type = SideIntegralVariablePostprocessor
    variable = u
    boundary = 101
  []
[]

[Executioner]
  type = Transient
  dt = 0.01
  num_steps = 1
[]

[Outputs]
  csv = true
[]

(test/tests/restart/start_time_override/transient.i)

[Mesh]
  type = GeneratedMesh
  nx = 5
  ny = 5
  dim = 2
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  [../]
[]

[Postprocessors]
  [u_norm]
    type = ElementL2Norm
    variable = u
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 5
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  checkpoint = true
  csv = true
[]

(modules/porous_flow/test/tests/heat_mass_transfer/variable_transfer_variable_0D.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 1
  ny = 1
[]

[Variables]
  [u]
    initial_condition = 1
  []
[]

[AuxVariables]
  [v]
    initial_condition = 10
  []
  [c]
    initial_condition = 1e-1
  []
[]

[Kernels]
  [u_dot]
    type = TimeDerivative
    variable = u
  []
  [value_transfer]
    type = PorousFlowHeatMassTransfer
    variable = u
    v = v
    transfer_coefficient = c
  []
[]

[Postprocessors]
  [point_value]
    type = PointValue
    variable = u
    point = '0.5 0.5 0.'
    execute_on = 'initial timestep_end'
  []
[]

[Preconditioning]
  [basic]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  num_steps = 11
  dt = 1
[]


[Outputs]
  csv = true
[]

(modules/porous_flow/test/tests/dirackernels/bh_except12.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    point_file = does_not_exist
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(test/tests/restart/start_time_override/start_time_override.i)

[Mesh]
  type = GeneratedMesh
  nx = 5
  ny = 5
  dim = 2
[]

[Problem]
  restart_file_base = transient_out_cp/LATEST
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [bodyforce]
    type = BodyForce
    variable = u
    value = 10.0
  []

  [ie]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  []

  [right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 10
  []
[]

[Postprocessors]
  [u_norm]
    type = ElementL2Norm
    variable = u
  []
[]

[Executioner]
  type = Transient

  # Start time can be set explicitly here or be picked up from the restart file
  num_steps = 5
  dt = 0.1
[]

[Outputs]
  csv = true
[]

(test/tests/controls/time_periods/bcs/bcs.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
  [./right2]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = (y*(t-1))+1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Controls]
  [./period0]
    type = TimePeriod
    disable_objects = 'BCs::right2'
    start_time = '0'
    end_time = '0.95'
    execute_on = 'initial timestep_begin'
  [../]

  [./period2]
    type = TimePeriod
    disable_objects = 'BCs::right'
    start_time = '1'
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/materials/output/output_warning.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  xmax = 10
  ymax = 10
  uniform_refine = 1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 10
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Materials]
  [./test_material]
    type = OutputTestMaterial
    block = 0
    variable = u
    stdvector_property_name = vec
    outputs = all
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/mobility_derivative/mobility_derivative_split_coupled_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 30
  ny = 30
  xmax = 30.0
  ymax = 30.0
  elem_type = QUAD4
[]

[Variables]
  [./c]
  [../]
  [./w]
  [../]
  [./d]
  [../]
[]

[ICs]
  [./c_IC]
    type = CrossIC
    x1 = 0.0
    x2 = 30.0
    y1 = 0.0
    y2 = 30.0
    variable = c
  [../]
  [./d_IC]
    type = BoundingBoxIC
    x1 = 0.0
    x2 = 15.0
    y1 = 0.0
    y2 = 30.0
    inside = 1.0
    outside = 0.0
    variable = d
  [../]
[]

[Kernels]
  [./cres]
    type = SplitCHParsed
    variable = c
    kappa_name = kappa_c
    w = w
    f_name = F
  [../]
  [./wres]
    type = SplitCHWRes
    variable = w
    mob_name = M
    coupled_variables = 'c d'
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./d_dot]
    type = TimeDerivative
    variable = d
  [../]
  [./d_diff]
    type = MatDiffusion
    variable = d
    diffusivity = diffusivity
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./kappa]
    type = GenericConstantMaterial
    prop_names = 'kappa_c'
    prop_values = '2.0'
  [../]
  [./mob]
    type = DerivativeParsedMaterial
    property_name = M
    coupled_variables = 'c d'
    expression = 'if(d>0.001,d,0.001)*(1-0.5*c^2)'
    outputs = exodus
    derivative_order = 1
  [../]
  [./free_energy]
    type = MathEBFreeEnergy
    property_name = F
    c = c
  [../]
  [./d_diff]
    type = GenericConstantMaterial
    prop_names = diffusivity
    prop_values = 0.1
  [../]
[]

[Preconditioning]
  [./SMP]
   type = SMP
   full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'BDF2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31      lu      1'

  l_max_its = 30
  l_tol = 1.0e-4
  nl_max_its = 50
  nl_rel_tol = 1.0e-10

  dt = 10.0
  num_steps = 2
[]

[Outputs]
  exodus = true
[]

(test/tests/meshgenerators/meta_data_store/mesh_meta_data_store.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 12
    ny = 10
    xmin = 4
    xmax = 7
  []
[]

[Debug]
  show_mesh_meta_data = true
[]

[Variables]
  [./u]
  [../]
[]

[AutoLineSamplerTest]
  # Add a line sampler on the variable right at the nodes based on the GeneratedMeshGenerator
  variable = u
  mesh_generator = 'gmg'
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  csv = true
[]

(modules/combined/examples/phase_field-mechanics/LandauPhaseTrans.i)

#
# Martensitic transformation
# Chemical driving force described by Landau Polynomial
# Coupled with elasticity (Mechanics)
#

[GlobalParams]
  displacements = 'disp_x disp_y'
[]

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 100
  ny = 100
  xmin = 0
  xmax = 100
  ymin = 0
  ymax = 100

  elem_type = QUAD4
[]

[Variables]
  [./eta1]
    [./InitialCondition]
      type = RandomIC
      min = 0
      max = 0.1
    [../]
  [../]
  [./eta2]
    [./InitialCondition]
      type = RandomIC
      min = 0
      max = 0.1
    [../]
  [../]
[]

[Physics/SolidMechanics/QuasiStatic]
  [./all]
    add_variables = true
    generate_output = 'stress_xx stress_yy'
    eigenstrain_names = 'eigenstrain1 eigenstrain2'
  [../]
[]

[Kernels]
  [./eta_bulk1]
    type = AllenCahn
    variable = eta1
    args = 'eta2'
    f_name = F
  [../]
  [./eta_bulk2]
    type = AllenCahn
    variable = eta2
    args = 'eta1'
    f_name = F
  [../]
  [./eta_interface1]
    type = ACInterface
    variable = eta1
    kappa_name = kappa_eta
  [../]
  [./eta_interface2]
    type = ACInterface
    variable = eta2
    kappa_name = kappa_eta
  [../]

  [./deta1dt]
    type = TimeDerivative
    variable = eta1
  [../]
  [./deta2dt]
    type = TimeDerivative
    variable = eta2
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'L kappa_eta'
    prop_values = '1 1'
  [../]

  [./chemical_free_energy]
    type = DerivativeParsedMaterial
    property_name = Fc
    coupled_variables = 'eta1 eta2'
    constant_names = 'A2 A3 A4'
    constant_expressions = '0.2 -12.6 12.4'
    expression = 'A2/2*(eta1^2+eta2^2) + A3/3*(eta1^3+eta2^3) + A4/4*(eta1^2+eta2^2)^2'
    enable_jit = true
    derivative_order = 2
  [../]

  [./elasticity_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '700 300 300 700 300 700 300 300 300'
    fill_method = symmetric9
  [../]

  [./stress]
    type = ComputeLinearElasticStress
  [../]

  [./var_dependence1]
    type = DerivativeParsedMaterial
    property_name = var_dep1
    coupled_variables = 'eta1'
    expression = eta1
    enable_jit = true
    derivative_order = 2
  [../]
  [./var_dependence2]
    type = DerivativeParsedMaterial
    property_name = var_dep2
    coupled_variables = 'eta2'
    expression = eta2
    enable_jit = true
    derivative_order = 2
  [../]

  [./eigenstrain1]
    type = ComputeVariableEigenstrain
    eigen_base = '0.1 -0.1 0 0 0 0'
    prefactor = var_dep1
    args = 'eta1'
    eigenstrain_name = eigenstrain1
  [../]

  [./eigenstrain2]
    type = ComputeVariableEigenstrain
    eigen_base = '-0.1 0.1 0 0 0 0'
    prefactor = var_dep2
    args = 'eta2'
    eigenstrain_name = eigenstrain2
  [../]

  [./elastic_free_energy]
    type = ElasticEnergyMaterial
    f_name = Fe
    args = 'eta1 eta2'
    derivative_order = 2
  [../]

  [./totol_free_energy]
    type = DerivativeSumMaterial
    property_name = F
    sum_materials = 'Fc Fe'
    coupled_variables = 'eta1 eta2'
    derivative_order = 2
  [../]
[]

[BCs]
  [./all_y]
    type = DirichletBC
    variable = disp_y
    boundary = 'top bottom left right'
    value = 0
  [../]
  [./all_x]
    type = DirichletBC
    variable = disp_x
    boundary = 'top bottom left right'
    value = 0
  [../]
[]

[Preconditioning]
  # active = ' '
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  # this gives best performance on 4 cores
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type  -sub_pc_type '
  petsc_options_value = 'asm       lu'

  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1.0e-10
  start_time = 0.0
  num_steps = 10

  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 9
    iteration_window = 2
    growth_factor = 1.1
    cutback_factor = 0.75
    dt = 0.3
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/multiapps/sub_cycling/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/01_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/explicit-euler/ee-2d-linear.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = (x+y)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*(x+y)
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
    lumping = true
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    preset = false
    boundary = '0 1 2 3'
    function = exact_fn
    implicit = true
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'explicit-euler'
  solve_type = 'LINEAR'

  start_time = 0.0
  num_steps = 20
  dt = 0.00005
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(test/tests/multiapps/relaxation/sub_relaxed_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
    initial_condition = 1
  []
  [inverse_v]
    initial_condition = 1
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = inverse_v
  []
[]

[AuxKernels]
  [invert_v]
    type = QuotientAux
    variable = inverse_v
    denominator = v
    numerator = 20.0
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [Neumann_right]
    type = NeumannBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_abs_tol = 1e-14
[]

[Outputs]
  exodus = true
  execute_on = 'INITIAL TIMESTEP_END'
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_begin
    positions = '0 0 0'
    input_files = sub_relaxed_sub.i
    transformed_variables = v
    relaxation_factor = 0.94
    # The input was originally created with effectively no restore
    # see the changes made for #5554 then reverted in #28115
    no_restore = true
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(test/tests/outputs/csv_final_and_latest/final.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.25
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

# Vector Postprocessor System
[VectorPostprocessors]
  [./line_sample]
    type = LineValueSampler
    execute_on = 'timestep_end final'
    variable = 'u'
    start_point = '0 0.5 0'
    end_point = '1 0.5 0'
    num_points = 11
    sort_by = id
  [../]
[]

[Outputs]
  [./out]
    type = CSV
    execute_on = 'TIMESTEP_END FINAL'
    create_final_symlink = true
  [../]
[]

(test/tests/dampers/min_damping/min_general_damping.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./u_dt]
    type = TimeDerivative
    variable = u
  [../]
  [./u_source]
    type = BodyForce
    variable = u
    value = 1
  [../]
[]

[Dampers]
  [./limit]
    type = ConstantDamper
    damping = 0.25
    min_damping = 0.5
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 1.0
  dtmin = 0.5
[]

[Postprocessors]
  [./u_avg]
    type = ElementAverageValue
    variable = u
  [../]
  [./dt]
    type = TimestepSize
  [../]
[]

(test/tests/misc/check_error/bad_enum_test.i)

[Mesh]
  [./square]
    type = GeneratedMeshGenerator
    nx = 2
    ny = 2
    dim = 2
  [../]
  uniform_refine = 3
[]

[Variables]
  active = 'u v'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'udiff uconv uie vdiff vconv vie'

  [./udiff]
    type = Diffusion
    variable = u
  [../]

  [./uconv]
    type = Convection
    variable = u
    velocity = '10 1 0'
  [../]

  [./uie]
    type = TimeDerivative
    variable = u
  [../]

  [./vdiff]
    type = Diffusion
    variable = v
  [../]

  [./vconv]
    type = Convection
    variable = v
    velocity = '-10 1 0'
  [../]

  [./vie]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  active = 'uleft uright vleft vright'

  [./uleft]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./uright]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]

  [./vleft]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 1
  [../]

  [./vright]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 0
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 2
  dt = .1

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
    error_estimator = PatchRecoveryFooBar   # This is a bad error estimator
  [../]
[]

[Outputs]
  file_base = out
[]

(test/tests/time_integrators/actually_explicit_euler_verification/ee-1d-quadratic-neumann.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = -1
  xmax = 1
  nx = 10
  elem_type = EDGE3
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = x*x-2*t+t*x*x
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*x*x
  [../]

  [./left_bc_fn]
    type = ParsedFunction
    expression = -t*2*x
  [../]
  [./right_bc_fn]
    type = ParsedFunction
    expression = t*2*x
  [../]
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./abs]
    type = Reaction
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./left]
    type = FunctionNeumannBC
    variable = u
    boundary = '0'
    function = left_bc_fn
  [../]

  [./right]
    type = FunctionNeumannBC
    variable = u
    boundary = '1'
    function = right_bc_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  l_tol = 1e-12
  start_time = 0.0
  num_steps = 10
  dt = 0.001

  [./TimeIntegrator]
    type = ActuallyExplicitEuler
  [../]
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(modules/optimization/examples/materialTransient/gradient.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    xmax = 1
    ymax = 1
    nx = 10
    ny = 10
  []
[]

[Variables/u_adjoint]
  initial_condition = 0
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u_adjoint
  []
  [diff]
    type = MatDiffusion
    variable = u_adjoint
    diffusivity = D
  []
[]

[DiracKernels]
  [misfit]
    type = ReporterTimePointSource
    variable = u_adjoint
    value_name = data/misfit_values
    x_coord_name = data/measurement_xcoord
    y_coord_name = data/measurement_ycoord
    z_coord_name = data/measurement_zcoord
    time_name = data/measurement_time
    reverse_time_end = 1
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = u_adjoint
    boundary = 'right top'
    value = 0
  []
[]

[Materials]
  [diffc]
    type = GenericFunctionMaterial
    prop_names = 'D'
    prop_values = 'diffc_fun'
  []
[]

[Functions]
  [diffc_fun]
    type = NearestReporterCoordinatesFunction
    value_name = 'diffc_rep/D_vals'
    x_coord_name = 'diffc_rep/D_x_coord'
    y_coord_name = 'diffc_rep/D_y_coord'
  []
[]

[Reporters]
  [diffc_rep]
    type = ConstantReporter
    real_vector_names = 'D_x_coord D_y_coord D_vals'
    real_vector_values = '0.25 0.75 0.25 0.75;
                          0.25 0.25 0.75 0.75;
                          0.1  10   10   0.1' # Reference solution
    outputs = none
  []
  [data]
    type = OptimizationData
  []
[]

[AuxVariables/u]
[]

[UserObjects]
  [load_u]
    type = AdjointSolutionUserObject
    mesh = forward_out.e
    system_variables = 'u'
    reverse_time_end = 1
    execute_on = 'timestep_begin'
  []
[]

[AuxKernels]
  [u_aux]
    type = SolutionAux
    variable = u
    solution = load_u
    direct = true
    execute_on = 'timestep_begin'
  []
[]

[VectorPostprocessors]
  [adjoint]
    type = ElementOptimizationDiffusionCoefFunctionInnerProduct
    variable = u_adjoint
    forward_variable = u
    function = diffc_fun
    reverse_time_end = 1
  []
[]

[Executioner]
  type = Transient

  solve_type = NEWTON
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-12

  dt = 0.1
  num_steps = 10
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/tosub_displaced_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 8
  xmax = 0.1
  ymax = 0.5
  displacements = 'disp_x disp_y'
  coord_type = rz
[]

[Variables]
  [u]
    initial_condition = 1
  []
[]

[AuxVariables]
  [multi_layered_average]
  []
  [element_multi_layered_average]
    order = CONSTANT
    family = MONOMIAL
  []
  [disp_x]
    initial_condition = 0.0
  []
  [disp_y]
    initial_condition = 0.5
  []
[]

[Functions]
  [axial_force]
    type = ParsedFunction
    expression = 1000*y
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    function = axial_force
  []
[]

[BCs]
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.001

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_postprocessor_interpolation_transfer/quad_sub2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./pp]
    type = Receiver
    default = 2
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/dirackernels/bh_except08.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
    at_nodes = false # Needed to force expected error
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    point_file = bh02.bh
    use_mobility = true
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(test/tests/executioners/adapt_and_modify/adapt_and_modify_heavy.i)

[Mesh]
  # This example uses Adaptivity Indicators, which are written out as
  # CONSTANT MONOMIAL variables, which don't currently work correctly
  # 2122 for more information.
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
#  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./elem]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./elem]
    type = UniqueIDAux
    variable = elem
    execute_on = timestep_begin
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[UserObjects]
  [./rh_uo]
    type = RandomHitUserObject
    execute_on = timestep_begin
    num_hits = 1
  [../]
  [./rhsm]
    type = RandomHitSolutionModifier
    execute_on = custom
    modify = u
    random_hits = rh_uo
    amount = 10
  [../]
[]

[Executioner]
  type = AdaptAndModify
  num_steps = 400
  dt = 2e-4
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  adapt_cycles = 2
[]

[Adaptivity]
  marker = rhm # Switch to combo to get the effect of both
  [./Indicators]
    [./gji]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./rhm]
      type = RandomHitMarker
      random_hits = rh_uo
    [../]
    [./efm]
      type = ErrorFractionMarker
      coarsen = 0.2
      indicator = gji
      refine = 0.8
    [../]
    [./combo]
      type = ComboMarker
      markers = 'efm rhm'
    [../]
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/initial_conditions/BimodalSuperellipsoidsIC.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 25
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c]
    type = BimodalSuperellipsoidsIC
    variable = c
    x_positions = '10.0 40.0'
    y_positions = '25.0 25.0'
    z_positions = '0.0  0.0'
    as = '8.0 8.0'
    bs = '8.0 8.0'
    cs = '1 1'
    ns = '3.5 3.5'
    npart = 5
    invalue = 1.0
    outvalue = -0.8
    int_width = 4.0
    large_spac = 5
    small_spac = 2
    small_a = 5
    small_b = 5
    small_c = 5
    small_n = 2
    size_variation_type = normal
    size_variation = 0.5
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'
  solve_type = 'NEWTON'

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-4
  nl_max_its = 40
  nl_rel_tol = 1e-9

  start_time = 0.0
  num_steps = 1
  dt = 2.0
[]

[Outputs]
  exodus = false
  [./out]
    type = Exodus
    refinements = 2
  [../]
[]

(modules/phase_field/test/tests/SoretDiffusion/direct_temp.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 30
  xmax = 500
  elem_type = EDGE
[]

[GlobalParams]
  polynomial_order = 8
[]

[Variables]
  [./c]
    family = HERMITE
    order = THIRD
  [../]
  [./T]
    initial_condition = 1000.0
    scaling = 1.0e5
  [../]
[]

[ICs]
  [./c_IC]
    type = SmoothCircleIC
    x1 = 125.0
    y1 = 0.0
    radius = 60.0
    invalue = 1.0
    outvalue = 0.1
    int_width = 100.0
    variable = c
  [../]
[]

[Kernels]
  [./c_int]
    type = CHInterface
    variable = c
    kappa_name = kappa
    mob_name = M
  [../]
  [./c_bulk]
    type = CahnHilliard
    variable = c
    mob_name = M
    f_name = F
  [../]
  [./c_soret]
    type = SoretDiffusion
    variable = c
    T = T
    diff_name = D
    Q_name = Qstar
  [../]
  [./c_dot]
    type = TimeDerivative
    variable = c
  [../]
  [./HtCond]
    type = MatDiffusion
    variable = T
    diffusivity = thermal_conductivity
  [../]
[]

[BCs]
  [./Left_T]
    type = DirichletBC
    variable = T
    boundary = left
    value = 1000.0
  [../]

  [./Right_T]
    type = DirichletBC
    variable = T
    boundary = right
    value = 1015.0
  [../]
[]

[Materials]
  [./Copper]
    type = PFParamsPolyFreeEnergy
    c = c
    T = T # K
    int_width = 60.0
    length_scale = 1.0e-9
    time_scale = 1.0e-9
    D0 = 3.1e-5 # m^2/s, from Brown1980
    Em = 0.71 # in eV, from Balluffi1978 Table 2
    Ef = 1.28 # in eV, from Balluffi1978 Table 2
    surface_energy = 0.708 # Total guess
  [../]
  [./thcond]
    type = ParsedMaterial
    coupled_variables = 'c'
    expression = 'if(c>0.7,1e-8,4e-8)'
    property_name = thermal_conductivity
    outputs = exodus
  [../]
  [./free_energy]
    type = PolynomialFreeEnergy
    c = c
    derivative_order = 3
  [../]
[]

[Preconditioning]
  [./SMP]
   type = SMP
   full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'
  solve_type = 'PJFNK'

  l_max_its = 30
  l_tol = 1.0e-4
  nl_max_its = 25
  nl_rel_tol = 1.0e-9

  num_steps = 60
  dt = 8.0
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/transfer_with_reset/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  # This test currently diffs when run in parallel with DistributedMesh enabled,
  # most likely due to the fact that it uses some geometric search stuff.
  # For more information, see #2121.
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [t]
  []
  [u_from_sub]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '0 0 0'
    input_files = sub.i
    reset_apps = 0
    reset_time = 0.05
  []
[]

[Transfers]
  [t_from_sub]
    type = MultiAppNearestNodeTransfer
    from_multi_app = sub
    source_variable = t
    variable = t
  []
  [u_from_sub]
    type = MultiAppNearestNodeTransfer
    from_multi_app = sub
    source_variable = u
    variable = u_from_sub
  []
  [u_to_sub]
    type = MultiAppNearestNodeTransfer
    to_multi_app = sub
    source_variable = u
    variable = u_from_master
  []
[]

(test/tests/adaptivity/cycles_per_step/cycles_per_step.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  initial_steps = 2
  cycles_per_step = 2
  marker = marker
  initial_marker = marker
  max_h_level = 2
  [Indicators/indicator]
    type = GradientJumpIndicator
    variable = u
  []
  [Markers/marker]
    type = ErrorFractionMarker
    indicator = indicator
    coarsen = 0.1
    refine = 0.7
  []
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/CHSplitChemicalPotential/simple_transient_diffusion.i)

# Same problem as in moose/test/tests/kernels/simple_transient_diffusion

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./c]
  [../]
  [./mu]
  [../]
[]

[Kernels]
  [./conc]
    type = CHSplitConcentration
    variable = c
    mobility = mobility_prop
    chemical_potential_var = mu
  [../]
  [./chempot]
    type = CHSplitChemicalPotential
    variable = mu
    chemical_potential_prop = mu_prop
    c = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./chemical_potential]
    type = DerivativeParsedMaterial
    property_name = mu_prop
    coupled_variables = c
    expression = 'c'
    derivative_order = 1
  [../]
  [./var_dependence]
    type = DerivativeParsedMaterial
    expression = '0.1'
    coupled_variables = c
    property_name = var_dep
    derivative_order = 1
  [../]
  [./mobility_tensor]
    type = ConstantAnisotropicMobility
    M_name = mobility_tensor
    tensor = '1 0 0 0 1 0 0 0 1'
  [../]
  [./mobility]
    type = CompositeMobilityTensor
    M_name = mobility_prop
    tensors = mobility_tensor
    weights = var_dep
    coupled_variables = c
  [../]
[]

[BCs]
  [./leftc]
    type = DirichletBC
    variable = c
    boundary = left
    value = 0
  [../]
  [./rightc]
    type = DirichletBC
    variable = c
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK

  petsc_options_iname = '-pc_type -ksp_grmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  preonly       lu           1'

  l_tol = 1e-3
  l_max_its = 20
  nl_max_its = 5
[]

[Preconditioning]
  [./smp]
     type = SMP
     full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/functions/piecewise_multilinear/time.i)

# PiecewiseMultilinear function tests for time-dependent data
# See [Functions] block for a description of the tests

[Mesh]
  type = GeneratedMesh
  dim = 3
  xmin = 0
  xmax = 1
  nx = 1
  ymin = 0
  ymax = 1
  ny = 1
  zmin = 0
  zmax = 1
  nz = 1
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./time1_var]
  [../]
[]

[AuxKernels]
  [./time1_AuxK]
    type = FunctionAux
    variable = time1_var
    function = time1_fcn
  [../]
[]

[Functions]
# This increases linearly: f = t
  [./time1_fcn]
    type = PiecewiseMultilinear
    data_file = time1.txt
  [../]
  [./time1_answer]
    type = ParsedFunction
    expression = t
  [../]
[]

[Postprocessors]
  [./time1_pp]
    type = NodalL2Error
    function = time1_answer
    variable = time1_var
  [../]
[]


[Executioner]
  type = Transient
  dt = 0.1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = time
  hide = dummy
  csv = true
[]

(modules/phase_field/test/tests/anisotropic_interfaces/adkobayashi.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 32
  ny = 32
  xmax = 0.7
  ymax = 0.7
[]

[Variables]
  [w]
  []
  [T]
  []
[]

[ICs]
  [wIC]
    type = SmoothCircleIC
    variable = w
    int_width = 0.1
    x1 = 0.35
    y1 = 0.35
    radius = 0.08
    outvalue = 0
    invalue = 1
  []
[]

[Kernels]
  [w_dot]
    type = TimeDerivative
    variable = w
  []
  [anisoACinterface1]
    type = ADACInterfaceKobayashi1
    variable = w
    mob_name = M
  []
  [anisoACinterface2]
    type = ADACInterfaceKobayashi2
    variable = w
    mob_name = M
  []
  [AllenCahn]
    type = ADAllenCahn
    variable = w
    mob_name = M
    f_name = fbulk
  []
  [T_dot]
    type = ADTimeDerivative
    variable = T
  []
  [CoefDiffusion]
    type = ADDiffusion
    variable = T
  []
  [w_dot_T]
    type = ADCoefCoupledTimeDerivative
    variable = T
    v = w
    coef = -1.8 #This is -K from kobayashi's paper
  []
[]

[Materials]
  [free_energy]
    type = ADDerivativeParsedMaterial
    property_name = fbulk
    coupled_variables = 'w T'
    constant_names = 'alpha gamma T_e pi'
    constant_expressions = '0.9 10 1 4*atan(1)'
    expression = 'm:=alpha/pi * atan(gamma * (T_e - T)); 1/4*w^4 - (1/2 - m/3) * w^3 + (1/4 - m/2) * '
               'w^2'
    derivative_order = 1
    outputs = exodus
  []
  [material]
    type = ADInterfaceOrientationMaterial
    op = w
  []
  [consts]
    type = ADGenericConstantMaterial
    prop_names = 'M'
    prop_values = '3333.333'
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  scheme = bdf2
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu      '

  nl_rel_tol = 1e-08
  l_tol = 1e-4
  l_max_its = 30

  dt = 0.001
  num_steps = 6
[]

[Outputs]
  exodus = true
  perf_graph = true
  execute_on = 'INITIAL FINAL'
[]

(modules/level_set/test/tests/transfers/markers/single_level/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[AuxVariables]
  [./marker]
    family = MONOMIAL
    order = CONSTANT
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = LevelSetReinitializationProblem
[]

[Executioner]
  type = Transient
  num_steps = 1
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [./out]
    type = Exodus
    execute_on = FINAL
  [../]
[]

(test/tests/restart/restart_transient_from_steady/restart_trans_with_2subs_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 3
  ny = 3
  xmax = 0.3
  ymax = 0.3
[]

[AuxVariables]
  [power_density]
  []
[]

[Variables]
  [temp]
  []
[]

[Kernels]
  [heat_conduction]
     type = Diffusion
     variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
  [heat_source_fuel]
    type = CoupledForce
    variable = temp
    v = power_density
  []
[]

[BCs]
  [bc]
    type = DirichletBC
    variable = temp
    boundary = '1 3'
    value = 100
  []
  [bc2]
    type = NeumannBC
    variable = temp
    boundary = '0 2'
    value = 10.0
  []
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  start_time = 0
  end_time = 3
  dt = 1.0

  nl_abs_tol = 1e-7
  nl_rel_tol = 1e-7
[]

[Postprocessors]
  [temp_fuel_avg]
    type = ElementAverageValue
    variable = temp
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [pwr_density]
    type = ElementIntegralVariablePostprocessor
    block = '0'
    variable = power_density
    execute_on = 'initial timestep_end'
  []
[]

[Outputs]
  perf_graph = true
  exodus = true
  color = true
[]

(test/tests/materials/derivative_material_interface/ad_derivative_parsed_material.i)

#
# Test the AD version of derivative parsed material
#

[Mesh]
  type = GeneratedMesh
  dim = 2
[]

[Variables]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = x
    [../]
  [../]
[]

[Kernels]
  [./diff]
    type = ADMatDiffusion
    variable = eta
    diffusivity = F
  []
  [./dt]
    type = TimeDerivative
    variable = eta
  []
[]

[Materials]
  [./Fbar]
    type = ADDerivativeParsedMaterial
    coupled_variables  = 'eta'
    property_name = Fbar
    expression ='1/3*(eta-0.5)^3'
  []
  [./F]
    type = ADParsedMaterial
    coupled_variables  = 'eta'
    material_property_names = 'F:=D[Fbar,eta]'
    expression ='F'
    outputs = exodus
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/multiapps/move/multilevel_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = multilevel_sub.i
    output_in_position = true
    move_time = 0.05
    move_positions = '2 2 0'
    move_apps = 0
  [../]
[]

(modules/rdg/test/tests/advection_1d/block_restrictable.i)

############################################################
[GlobalParams]
  order = CONSTANT
  family = MONOMIAL
  u = u
  slope_limiting = lslope
  implicit = false
[]
############################################################
[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 1
    xmin = 0
    xmax = 1
    nx = 100
  []
  [./subdomain1]
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0.5 0 0'
    block_id = 1
    top_right = '1.0 1.0 0'
    input = gen
  [../]
  [./interface]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = '0'
    paired_block = '1'
    new_boundary = 'primary0_interface'
    input = subdomain1
  [../]
  [./interface_again]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = '1'
    paired_block = '0'
    new_boundary = 'primary1_interface'
    input = interface
  [../]
[]
############################################################
[Functions]
  [./ic_u]
    type = PiecewiseConstant
    axis = x
    direction = right
    xy_data = '0.1 0.5
               0.4 1.0
               0.5 0.5'
  [../]
[]
############################################################
[UserObjects]
  [./lslope]
    type = AEFVSlopeLimitingOneD
    execute_on = 'linear'
    scheme = 'superbee' #none | minmod | mc | superbee
    block = 0
  [../]

  [./internal_side_flux]
    type = AEFVUpwindInternalSideFlux
    execute_on = 'linear'
  [../]

  [./free_outflow_bc]
    type = AEFVFreeOutflowBoundaryFlux
    execute_on = 'linear'
  [../]
[]
############################################################
[Variables]
  [./u]
    block = 0
  [../]
  [./v]
    block = 1
    family = LAGRANGE
    order = FIRST
  [../]
[]
############################################################
[ICs]
  [./u_ic]
    type = FunctionIC
    variable = 'u'
    function = ic_u
  [../]
[]
############################################################
[Kernels]
  [./time_u]
    implicit = true
    type = TimeDerivative
    variable = u
    block = 0
  [../]
  [./diff_v]
    implicit = true
    type = Diffusion
    variable = v
    block = 1
  [../]
  [./time_v]
    implicit = true
    type = TimeDerivative
    variable = v
    block = 1
  [../]
[]
############################################################
[DGKernels]
  [./concentration]
    type = AEFVKernel
    variable = u
    component = 'concentration'
    flux = internal_side_flux
    block = 0
  [../]
[]
############################################################
[BCs]
  [./concentration]
    type = AEFVBC
    boundary = 'left primary0_interface'
    variable = u
    component = 'concentration'
    flux = free_outflow_bc
  [../]
  [./v_left]
    type = DirichletBC
    boundary = 'primary1_interface'
    variable = v
    value = 1
  [../]
  [./v_right]
    type = DirichletBC
    boundary = 'right'
    variable = v
    value = 0
  [../]
[]
############################################################
[Materials]
  [./aefv]
    type = AEFVMaterial
    block = 0
  [../]
  [./dummy_1]
    type = GenericConstantMaterial
    block = 1
    prop_names = ''
    prop_values = ''
  [../]
[]
############################################################
[Executioner]
  type = Transient
  [./TimeIntegrator]
    type = ExplicitMidpoint
  [../]
  solve_type = 'LINEAR'

  l_tol = 1e-4
  nl_rel_tol = 1e-20
  nl_abs_tol = 1e-8
  nl_max_its = 60

  start_time = 0.0
  num_steps = 4 # 4 | 400 for complete run
  dt = 5e-4
  dtmin = 1e-6
[]

[Outputs]
  [./out]
    type = Exodus
    time_step_interval = 2
  [../]
  perf_graph = true
[]

(test/tests/auxkernels/material_rate_real/material_rate_real.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 1
  ny = 1
[]

[AuxVariables]
  [rate]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [rate]
    type = MaterialRateRealAux
    variable = rate
    property = prop
  []
[]

[Variables]
  [u]
  []
[]

[Functions]
  [func]
    type = ParsedFunction
    expression = t*t/2
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Materials]
  [mat]
    type = GenericFunctionMaterial
    prop_names = prop
    prop_values = func
    block = 0
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1
  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
[]

[Postprocessors]
  [rate]
    type = PointValue
    point = '0.5 0.5 0'
    variable = rate
  []
[]

[Outputs]
  csv = True
[]

(modules/porous_flow/test/tests/dirackernels/bh_except10.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
    compute_internal_energy = false
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    point_file = bh02.bh
    use_mobility = true
    use_internal_energy = true
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(modules/level_set/examples/rotating_circle/circle_rotate_supg.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 32
  ny = 32
  uniform_refine = 2
[]

[AuxVariables]
  [./velocity]
    family = LAGRANGE_VEC
  [../]
[]

[Variables]
  [./phi]
  [../]
[]

[Functions]
  [./phi_exact]
    type = LevelSetOlssonBubble
    epsilon = 0.03
    center = '0 0.5 0'
    radius = 0.15
  [../]
  [./velocity_func]
    type = ParsedVectorFunction
    expression_x = '4*y'
    expression_y = '-4*x'
  [../]
[]

[ICs]
  [./phi_ic]
    type = FunctionIC
    function = phi_exact
    variable = phi
  [../]
  [./vel_ic]
    type = VectorFunctionIC
    variable = velocity
    function = velocity_func
  []
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = phi
  [../]
  [./advection]
    type = LevelSetAdvection
    velocity = velocity
    variable = phi
  [../]
  [./advection_supg]
    type = LevelSetAdvectionSUPG
    velocity = velocity
    variable = phi
  [../]
  [./time_supg]
    type = LevelSetTimeDerivativeSUPG
    velocity = velocity
    variable = phi
  [../]
[]

[Postprocessors]
  [./area]
    type = LevelSetVolume
    threshold = 0.5
    variable = phi
    location = outside
    execute_on = 'initial timestep_end'
  [../]
  [./cfl]
    type = LevelSetCFLCondition
    velocity = velocity
    execute_on = 'initial'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  start_time = 0
  end_time = 1.570796
  scheme = crank-nicolson
  petsc_options_iname = '-pc_type -pc_sub_type'
  petsc_options_value = 'asm      ilu'
  [./TimeStepper]
    type = PostprocessorDT
    postprocessor = cfl
    scale = 0.8
  [../]
[]

[Outputs]
  csv = true
  exodus = true
[]

(test/tests/bcs/periodic/periodic_bc_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  nz = 0
  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = GaussContForcing
    variable = u
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    [./x]
      variable = u
      primary = 3
      secondary = 1
      translation = '40 0 0'
    [../]

    [./y]
      variable = u
      primary = 0
      secondary = 2
      translation = '0 40 0'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 20
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out
  exodus = true
[]

(modules/level_set/examples/vortex/vortex_reinit_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmax = 1
  ymax = 1
  nx = 16
  ny = 16
  uniform_refine = 2
  elem_type = QUAD9
  second_order = true
[]

[Variables/phi]
    family = LAGRANGE
[]

[AuxVariables]
  [phi_0]
    family = LAGRANGE
  []
  [marker]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = phi
  []
  [reinit]
    type = LevelSetOlssonReinitialization
    variable = phi
    phi_0 = phi_0
    epsilon = 0.03
  []
[]

[Problem]
  type = LevelSetReinitializationProblem
[]

[UserObjects]
  [arnold]
    type = LevelSetOlssonTerminator
    tol = 0.5
    min_steps = 3
  []
[]

[Preconditioning/smp]
    type = SMP
    full = true
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  start_time = 0
  num_steps = 100
  nl_abs_tol = 1e-14
  scheme = crank-nicolson
  line_search = none
  dt = 0.003
[]

[Outputs]
[]

(test/tests/restart/restart_add_variable/add_variable_restart.i)

# Use the exodus file for restarting the problem:
# - restart one variable
# - and have one extra variable
# - have PBP active to have more system in Equation system
#

[Mesh]
  file = transient_with_stateful_out.e
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = -4+(x*x+y*y)
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./diffusivity]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./out_diffusivity]
    type = MaterialRealAux
    variable = diffusivity
    property = diffusivity
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = MatDiffusionTest
    variable = u
    prop_name = diffusivity
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[Materials]
  [./mat]
    type = StatefulMaterial
    block = 0
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left_v]
    type = DirichletBC
    variable = v
    boundary = '3'
    value = 0
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '1'
    value = 1
  [../]
[]

[Preconditioning]
  [./PBP]
    type = PBP
    solve_order = 'u v'
    preconditioner = 'AMG AMG'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = JFNK
  dt = 0.1
  reset_dt = true #NECESSARY to force a change in DT when using restart!
  num_steps = 3
[]

[Outputs]
  [./out]
    type = Exodus
    elemental_as_nodal = true
    execute_elemental_on = none
  [../]
[]

[Problem]
  restart_file_base = transient_with_stateful_out_cp/LATEST
[]

(modules/porous_flow/test/tests/flux_limited_TVD_advection/fltvd_2D_blocks.i)

# Using Flux-Limited TVD Advection ala Kuzmin and Turek
# 2D version with blocks
# Top block: tracer is defined here, with velocity = (0.1, 0, 0)
# Central block: tracer is not defined here
# Bottom block: tracer is defined here, with velocity = (-0.1, 0, 0)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    xmin = 0
    xmax = 1
    ny = 5
    ymin = 0
    ymax = 1
  []
  [top]
    input = gen
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0 0.6 0'
    top_right = '1 1 0'
    block_id = 1
  []
  [center]
    input = bottom
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0 0.4 0'
    top_right = '1 0.6 0'
    block_id = 2
  []
  [bottom]
    input = top
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0 0 0'
    top_right = '1 0.6 0'
    block_id = 3
  []
  [split_bdys]
    type = BreakBoundaryOnSubdomainGenerator
    input = center
    boundaries = 'left right'
  []
[]

[GlobalParams]
  block = '1 2 3'
[]

[Variables]
  [tracer]
    block = '1 3'
  []
  [dummy]
  []
[]

[ICs]
  [tracer_top]
    type = FunctionIC
    variable = tracer
    function = 'if(x<0.1 | x>0.3, 0, 1)'
    block = '1'
  []
  [tracer_bot]
    type = FunctionIC
    variable = tracer
    function = 'if(x<0.7 | x > 0.9, 0, 1)'
    block = '3'
  []
[]

[Kernels]
  [mass_dot]
    type = MassLumpedTimeDerivative
    variable = tracer
    block = '1 3'
  []
  [flux_top]
    type = FluxLimitedTVDAdvection
    variable = tracer
    advective_flux_calculator = fluo_top
    block = '1'
  []
  [flux_bot]
    type = FluxLimitedTVDAdvection
    variable = tracer
    advective_flux_calculator = fluo_bot
    block = '3'
  []
  [.dummy]
    type = TimeDerivative
    variable = dummy
  []
[]

[UserObjects]
  [fluo_top]
    type = AdvectiveFluxCalculatorConstantVelocity
    flux_limiter_type = superbee
    u = tracer
    velocity = '0.1 0 0'
    block = '1'
  []
  [fluo_bot]
    type = AdvectiveFluxCalculatorConstantVelocity
    flux_limiter_type = superbee
    u = tracer
    velocity = '-0.1 0 0'
    block = '3'
  []
[]

[BCs]
  [no_tracer_on_left_top]
    type = DirichletBC
    variable = tracer
    value = 0
    boundary = 'left_to_1'
  []
  [remove_tracer_top]
# Ideally, an OutflowBC would be used, but that does not exist in the framework
# In 1D VacuumBC is the same as OutflowBC, with the alpha parameter being twice the velocity
    type = VacuumBC
    boundary = 'right_to_1'
    alpha = 0.2 # 2 * velocity
    variable = tracer
  []
  [no_tracer_on_left_bot]
# Ideally, an OutflowBC would be used, but that does not exist in the framework
# In 1D VacuumBC is the same as OutflowBC, with the alpha parameter being twice the velocity
    type = VacuumBC
    boundary = 'left_to_3'
    alpha = 0.2 # 2 * velocity
    variable = tracer
  []
  [remove_tracer_bot]
    type = DirichletBC
    variable = tracer
    value = 0
    boundary = 'right_to_3'
  []
[]

[Preconditioning]
  active = basic
  [basic]
    type = SMP
    full = true
    petsc_options = '-ksp_diagonal_scale -ksp_diagonal_scale_fix'
    petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type -pc_asm_overlap'
    petsc_options_value = ' asm      lu           NONZERO                   2'
  []
  [preferred_but_might_not_be_installed]
    type = SMP
    full = true
    petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
    petsc_options_value = ' lu       mumps'
  []
[]

[VectorPostprocessors]
  [tracer_bot]
    type = LineValueSampler
    start_point = '0 0 0'
    end_point = '1 0 0'
    num_points = 11
    sort_by = x
    variable = tracer
  []
  [tracer_top]
    type = LineValueSampler
    start_point = '0 1 0'
    end_point = '1 1 0'
    num_points = 11
    sort_by = x
    variable = tracer
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  end_time = 6
  dt = 6E-2
  timestep_tolerance = 1E-3
[]

[Outputs]
  print_linear_residuals = false
  [out]
    type = CSV
    execute_on = final
  []
[]

(test/tests/time_steppers/cutback_factor_at_failure/function_dt_cutback.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Functions]
  [./dts]
    type = PiecewiseLinear
    x = '0   0.85  2'
    y = '0.2 0.25  0.25'
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  type = FailingProblem
  fail_steps = '3'
[]

[Executioner]
  type = Transient
  num_steps = 10
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  [./TimeStepper]
    type = FunctionDT
    function = dts
    min_dt = 0.01
    cutback_factor_at_failure = 0.75
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_scalar_to_auxscalar_transfer/to_sub/sub_wrong_order.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmin = 0.0
  xmax = 1.0
  ymin = 0.0
  ymax = 1.0
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./b]
    family = SCALAR
    order = SIXTH
  [../]
[]

[Kernels]
  [./diffusion]
    type = Diffusion
    variable = u
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient
[]

[Outputs]
  hide = 'u'
  exodus = true
[]

(test/tests/postprocessors/element_integral_var_pps/initial_pps.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 3
  ny = 3
  elem_type = QUAD9
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
    [./InitialCondition]
      type = ConstantIC
      value = 2.8
    [../]
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
    [./InitialCondition]
      type = ConstantIC
      value = 5.4
    [../]
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '1'
    value = 0
  [../]
[]

[Postprocessors]
  [./initial_u]
    type = ElementIntegralVariablePostprocessor
    variable = u
    execute_on = initial
  [../]

  [./initial_v]
    type = ElementIntegralVariablePostprocessor
    variable = v
    execute_on = initial
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 0.3
[]

[Outputs]
  file_base = out_initial_pps
  exodus = true
[]

(modules/solid_mechanics/test/tests/power_law_creep/ad_smallstrain.i)

# 1x1x1 unit cube with uniform pressure on top face for the case of small strain.
#  This test does not have a solid mechanics analog because there is not an equvialent
#  small strain with rotations strain calculator material in solid mechanics

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [temp]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1000.0
  []
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = SMALL
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
    use_automatic_differentiation = true
  []
[]

[Functions]
  [top_pull]
    type = PiecewiseLinear
    x = '0 1'
    y = '1 1'
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = ADPressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
    function = top_pull
  []
  [u_bottom_fix]
    type = ADDirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = ADDirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = ADDirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ADComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
    constant_on = SUBDOMAIN
  []
  [radial_return_stress]
    type = ADComputeMultipleInelasticStress
    inelastic_models = 'power_law_creep'
  []
  [power_law_creep]
    type = ADPowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp_ew'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.0
  end_time = 1.0
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(modules/heat_transfer/test/tests/radiative_bcs/function_radiative_bc.i)

#
# If we assume that epsilon*sigma*(T_inf^4-T_s^4) is approximately equal to
#   epsilon*sigma*4*T_inf^3*(T_inf-T_s), that form is equivalent to
#   h*(T_inf-T_s), the convective flux bc.  So, the radiative and convective
#   flux bcs should give nearly the same answer if the leading terms are equal.
#
[Mesh]
  [top]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 10
    bias_x = 0.8
    ymin = 1.2
    ymax = 2.2
    boundary_name_prefix = top
  []
  [bottom]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 10
    bias_x = 0.8
    boundary_name_prefix = bot
    boundary_id_offset = 6
  []
  [two_blocks]
    type = MeshCollectionGenerator
    inputs = 'top bottom'
  []
[]

[Variables]
  [temp]
    initial_condition = 600.0
  []
[]

[Kernels]
  [heat_dt]
    type = TimeDerivative
    variable = temp
  []
  [heat_conduction]
    type = HeatConduction
    variable = temp
  []
[]

[BCs]
  [./top_right]
    type = ConvectiveHeatFluxBC
    variable = temp
    boundary = top_right
    T_infinity = 300.0
    heat_transfer_coefficient = 3.0
    heat_transfer_coefficient_dT = 0
  [../]
  [./bot_right]
    type = FunctionRadiativeBC
    variable = temp
    boundary = bot_right
    # htc/(stefan-boltzmann*4*T_inf^3)
    emissivity_function = '3/(5.670367e-8*4*300*300*300)'
  [../]
[]

[Materials]
  [./thermal]
    type = GenericConstantMaterial
    prop_names = 'density  thermal_conductivity specific_heat'
    prop_values = '1 10 100'
  [../]
[]

[Postprocessors]
  [./top_left_temp]
    type = SideAverageValue
    variable = temp
    boundary = top_left
    execute_on = 'TIMESTEP_END initial'
  [../]
  [./bot_left_temp]
    type = SideAverageValue
    variable = temp
    boundary = bot_left
    execute_on = 'TIMESTEP_END initial'
  [../]
  [./top_right_temp]
    type = SideAverageValue
    variable = temp
    boundary = top_right
  [../]
  [./bot_right_temp]
    type = SideAverageValue
    variable = temp
    boundary = bot_right
  [../]
[]

[Executioner]
  type = Transient

  num_steps = 10
  dt = 1e1

  nl_abs_tol = 1e-12
[]

[Outputs]
  exodus = true
[]

(test/tests/functions/piecewise_multilinear/except3.i)

# PiecewiseMultilinear function exception test
# Incorrect number of data points

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 1
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./f]
  [../]
[]

[AuxKernels]
  [./f_auxK]
    type = FunctionAux
    variable = f
    function = except3_fcn
  [../]
[]


[Functions]
  [./except3_fcn]
    type = PiecewiseMultilinear
    data_file = except3.txt
  [../]
[]


[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  hide = dummy
[]

(test/tests/adaptivity/cycles_per_step/test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  initial_steps = 2
  steps = 1
  marker = marker
  initial_marker = marker
  max_h_level = 2
  [./Indicators]
    [./indicator]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./marker]
      type = ErrorFractionMarker
      indicator = indicator
      coarsen = 0.1
      refine = 0.7
    [../]
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/system_info/system_info.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Adaptivity]
  marker = marker
  max_h_level = 2
  [./Indicators]
    [./indicator]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./marker]
      type = ErrorFractionMarker
      coarsen = 0.1
      indicator = indicator
      refine = 0.7
    [../]
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux_u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(test/tests/phi_zero/simple_transient_diffusion.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 3
  ny = 3
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
  [./dummy]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./phi_zero]
    type = PhiZeroKernel
    variable = dummy
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(python/peacock/tests/common/time_data.i)

###############################################################
# The following tests that the CSV output object can include an
# additional .csv file that contains the time and timestep
# data from VectorPostprocessor object.
###############################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./v]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
  [./left_v]
    type = DirichletBC
    variable = v
    boundary = left
    value = 1
  [../]
  [./right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 0
  [../]
[]

[VectorPostprocessors]
  [./line_sample]
    type = LineValueSampler
    variable = 'u v'
    start_point = '0 0.5 0'
    end_point = '1 0.5 0'
    num_points = 11
    sort_by = id
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'initial timestep_end'
  file_base = 'time_data'
  [./out]
    type = CSV
    time_data = true
    interval = 2
  [../]
[]

(test/tests/misc/exception/exception_transient.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [exception]
    type = ExceptionKernel
    variable = u
    when = residual
    # throw after the first residual evaluation
    counter = 1
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [time_deriv]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [right]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 2
    value = 1
  []
  [right2]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 1
    value = 0
  []
[]

[Postprocessors]
  [dt]
    type = TimestepSize
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  dtmin = 0.005
  solve_type = 'PJFNK'
  petsc_options_iname = '--pc_type'
  petsc_options_value = 'lu'
[]

[Outputs]
  perf_graph = true
  [out]
    type = CSV
    execute_on = 'INITIAL TIMESTEP_END FAILED'
  []
[]

(test/tests/outputs/perf_graph/multi_app/parent_sub_cycle.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  perf_graph = true
[]

[MultiApps]
  [./sub_app]
    positions = '0 0 0'
    type = TransientMultiApp
    input_files = 'sub_sub_cycle.i'
    app_type = MooseTestApp
    sub_cycling = true
  [../]
[]

(modules/phase_field/test/tests/MultiPhase/derivativetwophasematerial.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 14
  ny = 10
  nz = 0
  xmin = 10
  xmax = 40
  ymin = 15
  ymax = 35
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 25.0
      y1 = 25.0
      radius = 6.0
      invalue = 0.9
      outvalue = 0.1
      int_width = 3.0
    [../]
  [../]
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 30.0
      y1 = 25.0
      radius = 4.0
      invalue = 0.9
      outvalue = 0.1
      int_width = 2.0
    [../]
  [../]
[]

[Kernels]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
  [./ACBulk]
    type = AllenCahn
    variable = eta
    coupled_variables = c
    f_name = F
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa_eta
  [../]

  [./c_res]
    type = SplitCHParsed
    variable = c
    f_name = F
    kappa_name = kappa_c
    w = w
    coupled_variables = 'eta'
  [../]
  [./w_res]
    type = SplitCHWRes
    variable = w
    mob_name = M
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
[]

[BCs]
  [./Periodic]
    [./All]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'L kappa_eta'
    prop_values = '1 1        '
  [../]
  [./consts2]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1 1'
  [../]

  [./switching]
    type = SwitchingFunctionMaterial
    eta = eta
    h_order = SIMPLE
  [../]
  [./barrier]
    type = BarrierFunctionMaterial
    eta = eta
    g_order = SIMPLE
  [../]

  [./free_energy_A]
    type = DerivativeParsedMaterial
    property_name = Fa
    coupled_variables = 'c'
    expression = '(c-0.1)^2*(c-1)^2 + c*0.01'
    derivative_order = 2
    enable_jit = true
  [../]
  [./free_energy_B]
    type = DerivativeParsedMaterial
    property_name = Fb
    coupled_variables = 'c'
    expression = 'c^2*(c-0.9)^2 + (1-c)*0.01'
    derivative_order = 2
    enable_jit = true
  [../]

  [./free_energy]
    type = DerivativeTwoPhaseMaterial
    property_name = F
    fa_name = Fa
    fb_name = Fb
    coupled_variables = 'c'
    eta = eta
    derivative_order = 2
    outputs = exodus
    output_properties = 'F dF/dc dF/deta d^2F/dc^2 d^2F/dcdeta d^2F/deta^2'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'
  solve_type = 'NEWTON'

  l_max_its = 15
  l_tol = 1.0e-4

  nl_max_its = 10
  nl_rel_tol = 1.0e-11

  start_time = 0.0
  num_steps = 1
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(test/tests/interfacekernels/1d_interface/ADMatreaction_1D_transient.i)

# Transient-state test for the InterfaceReaction kernel.
#
# Same to steady-state, except the following
#
# Natural BCs are applied (i.e. NewmannBC h=0 at left and right)

[Mesh]
    [gen]
      type = GeneratedMeshGenerator
      dim = 1
      nx = 10
      xmax = 2
    []
    [subdomain1]
      input = gen
      type = SubdomainBoundingBoxGenerator
      bottom_left = '1.0 0 0'
      block_id = 1
      top_right = '2.0 1.0 0'
    []
    [interface]
      type = SideSetsBetweenSubdomainsGenerator
      input = 'subdomain1'
      primary_block = '0'
      paired_block = '1'
      new_boundary = 'primary0_interface'
    []
  []

  [Variables]
    [u]
      order = FIRST
      family = LAGRANGE
      block = '0'
    []
    [v]
      order = FIRST
      family = LAGRANGE
      block = '1'
    []
  []

  [Kernels]
    [diff_u]
      type = MatDiffusion
      variable = u
      block = '0'
      diffusivity = D
    []
    [diff_v]
      type = MatDiffusion
      variable = v
      block = '1'
      diffusivity = D
    []
    [diff_u_dt]
        type = TimeDerivative
        variable = u
        block = '0'
    []
    [diff_v_dt]
        type = TimeDerivative
        variable = v
        block = '1'
    []
    [source_u]
        type = BodyForce
        variable = u
        block = '0'
    []
  []

  [InterfaceKernels]
    [interface]
      type = InterfaceDiffusion
      variable = u
      neighbor_var = 'v'
      boundary = 'primary0_interface'
      D = D
      D_neighbor = D
    []
    [interface_reaction]
      type = ADMatInterfaceReaction
      variable = u
      neighbor_var = 'v'
      boundary = 'primary0_interface'
      forward_rate = forward_rate
      backward_rate = backward_rate
    []
  []

  [Materials]
    [block0]
      type = 'ADGenericConstantMaterial'
      block = '0'
      prop_names = 'forward_rate backward_rate'
      prop_values = '1.0 2.0'
    []
    [block01]
      type = 'GenericConstantMaterial'
      block = '0'
      prop_names = 'D'
      prop_values = '4'
    []
    [block1]
      type = 'ADGenericConstantMaterial'
      block = '1'
      prop_names = 'forward_rate backward_rate'
      prop_values = '1.0 2.0'
    []
    [block11]
      type = 'GenericConstantMaterial'
      block = '1'
      prop_names = 'D'
      prop_values = '2'
    []
  []

  [Executioner]
    type = Transient
    num_steps = 10
    dt = 0.1
    solve_type = NEWTON
  []

  [Outputs]
    print_linear_residuals = true
    #execute_on = 'FINAL'
    exodus = true
    csv = true
  []

  [Debug]
    show_var_residual_norms = true
  []

(test/tests/dampers/min_damping/min_nodal_damping.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./u_dt]
    type = TimeDerivative
    variable = u
  [../]
  [./u_source]
    type = BodyForce
    variable = u
    value = 1
  [../]
[]

[BCs]
  [./u_left]
    type = DirichletBC
    boundary = left
    variable = u
    value = 0.0
  [../]
[]

[Dampers]
  [./limit]
    type = BoundingValueNodalDamper
    variable = u
    max_value = 1.5
    min_value = -1.5
    min_damping = 0.001
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
[]

[Postprocessors]
  [./u_avg]
    type = ElementAverageValue
    variable = u
  [../]
  [./dt]
    type = TimestepSize
  [../]
[]

(test/tests/utils/apply_input_parameters/apply_input_parameters.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[ApplyInputParametersTest]
  # Builds CoefDiffusion
  coef = 0.1
  variable = u
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialAnisotropy.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  xmin = -2
  xmax = 2
  ymin = -2
  ymax = 2
[]

# enable_jit set to false in many materials to make this test start up faster.
# It is recommended to set enable_jit = true or just remove these lines for
# production runs with this model
[GlobalParams]
  radius = 1.0
  int_width = 0.8
  x1 = 0
  y1 = 0
  derivative_order = 2
  enable_jit = false
[]

[Variables]
  [./w]
  [../]
  [./etaa0]
  [../]
  [./etab0]
  [../]
[]

[AuxVariables]
  [./bnds]
  [../]
[]

[AuxKernels]
  [./bnds]
    type = BndsCalcAux
    variable = bnds
    v = 'etaa0 etab0'
  [../]
[]

[ICs]
  [./w]
    type = SmoothCircleIC
    variable = w
    # note w = A*(c-cleq), A = 1.0, cleq = 0.0 ,i.e., w = c (in the matrix/liquid phase)
    outvalue = -4.0
    invalue = 0.0
  [../]
  [./etaa0]
    type = SmoothCircleIC
    variable = etaa0
    #Solid phase
    outvalue = 0.0
    invalue = 1.0
  [../]
  [./etab0]
    type = SmoothCircleIC
    variable = etab0
    #Liquid phase
    outvalue = 1.0
    invalue = 0.0
  [../]
[]

[BCs]
  [./Periodic]
    [./w]
      variable = w
      auto_direction = 'x y'
    [../]
    [./etaa0]
      variable = etaa0
      auto_direction = 'x y'
    [../]
    [./etab0]
      variable = etab0
      auto_direction = 'x y'
    [../]
  [../]
[]

[Kernels]
# Order parameter eta_alpha0
  [./ACa0_bulk]
    type = ACGrGrMulti
    variable = etaa0
    v =           'etab0'
    gamma_names = 'gab'
  [../]
  [./ACa0_sw]
    type = ACSwitching
    variable = etaa0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etab0 w'
  [../]
  [./ACa0_int1]
    type = ACInterface2DMultiPhase1
    variable = etaa0
    etas = 'etab0'
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
    d2kappadgrad_etaa_name = d2kappadgrad_etaa
  [../]
  [./ACa0_int2]
    type = ACInterface2DMultiPhase2
    variable = etaa0
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
  [../]
  [./ea0_dot]
    type = TimeDerivative
    variable = etaa0
  [../]
# Order parameter eta_beta0
  [./ACb0_bulk]
    type = ACGrGrMulti
    variable = etab0
    v =           'etaa0'
    gamma_names = 'gab'
  [../]
  [./ACb0_sw]
    type = ACSwitching
    variable = etab0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etaa0 w'
  [../]
  [./ACb0_int1]
    type = ACInterface2DMultiPhase1
    variable = etab0
    etas = 'etaa0'
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
    d2kappadgrad_etaa_name = d2kappadgrad_etab
  [../]
  [./ACb0_int2]
    type = ACInterface2DMultiPhase2
    variable = etab0
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
  [../]
  [./eb0_dot]
    type = TimeDerivative
    variable = etab0
  [../]
#Chemical potential
  [./w_dot]
    type = SusceptibilityTimeDerivative
    variable = w
    f_name = chi
  [../]
  [./Diffusion]
    type = MatDiffusion
    variable = w
    diffusivity = Dchi
  [../]
  [./coupled_etaa0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etaa0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0'
  [../]
  [./coupled_etab0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etab0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0'
  [../]
[]

[Materials]
  [./ha]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = ha
    all_etas = 'etaa0 etab0'
    phase_etas = 'etaa0'
  [../]
  [./hb]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hb
    all_etas = 'etaa0 etab0'
    phase_etas = 'etab0'
  [../]
  [./omegaa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegaa
    material_property_names = 'Vm ka caeq'
    expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
  [../]
  [./omegab]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegab
    material_property_names = 'Vm kb cbeq'
    expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq'
  [../]
  [./rhoa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhoa
    material_property_names = 'Vm ka caeq'
    expression = 'w/Vm^2/ka + caeq/Vm'
  [../]
  [./rhob]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhob
    material_property_names = 'Vm kb cbeq'
    expression = 'w/Vm^2/kb + cbeq/Vm'
  [../]
  [./kappaa]
    type = InterfaceOrientationMultiphaseMaterial
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
    d2kappadgrad_etaa_name = d2kappadgrad_etaa
    etaa = etaa0
    etab = etab0
    outputs = exodus
    output_properties = 'kappaa dkappadgrad_etaa'
  [../]
  [./kappab]
    type = InterfaceOrientationMultiphaseMaterial
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
    d2kappadgrad_etaa_name = d2kappadgrad_etab
    etaa = etab0
    etab = etaa0
    outputs = exodus
    output_properties = 'kappab dkappadgrad_etab'
  [../]
  [./const]
    type = GenericConstantMaterial
    prop_names =  'L   D    chi  Vm   ka    caeq kb    cbeq  gab mu'
    prop_values = '1.0 1.0  0.1  1.0  10.0  0.1  10.0  0.9   4.5 10.0'
  [../]
  [./Mobility]
    type = ParsedMaterial
    property_name = Dchi
    material_property_names = 'D chi'
    expression = 'D*chi'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  l_tol = 1.0e-5
  nl_rel_tol = 1.0e-10
  nl_abs_tol = 1e-12
  num_steps = 2
  dt = 0.001
[]

[Outputs]
  exodus = true
[]

(modules/thermal_hydraulics/test/tests/controls/parsed_function_control/test.i)

# This test takes a value of (a) function, (b) postprocessor, (c) scalar variable,
# (d) real-valued control value and (f) bool-valued control value and evaluates it via
# ParsedFunctionControl object

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 1
[]

[Functions]
  [pps_fn]
    type = ConstantFunction
    value = 4
  []

  [fn]
    type = ConstantFunction
    value = 5
  []
[]

[AuxVariables]
  [sv]
    family = SCALAR
    order = FIRST
    initial_condition = 0
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[AuxScalarKernels]
  [sv_ak]
    type = ConstantScalarAux
    variable = sv
    value = 3
    execute_on = 'timestep_begin'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Components]
[]

[Postprocessors]
  [pps]
    type = FunctionValuePostprocessor
    function = pps_fn
    execute_on = 'timestep_begin'
  []

  [result]
    type = RealControlDataValuePostprocessor
    control_data_name = eval_ctrl:value
    execute_on = 'timestep_end'
  []
[]

[ControlLogic]
  [ctrl]
    type = GetFunctionValueControl
    function = 2
  []

  [trip]
    type = UnitTripControl
    condition = 't > 0'
  []

  [eval_ctrl]
    type = ParsedFunctionControl
    function = 'a + b + c + d + f'
    symbol_names = 'a b c d f'
    symbol_values = 'fn pps sv ctrl:value trip:state'
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 2
  abort_on_solve_fail = true
[]

[Outputs]
  csv = true
  show = 'result'
[]

(modules/stochastic_tools/test/tests/vectorpostprocessors/stochastic_results/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

[Postprocessors]
  [avg]
    type = AverageNodalVariableValue
    variable = u
  []
[]

(test/tests/controls/time_periods/error/control.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Dampers]
  [./const_damp]
    type = ConstantDamper
    damping = 0.9
  [../]
[]

[Controls]
  [./damping_control]
    type = TimePeriod
    disable_objects = 'const_damp'

    # Note: These numbers are quoted to get around an issue when
    # overriding numeric types with vectors of numeric types
    # on the CLI. They are still interpreted as numbers.
    start_time = '0.25'
    end_time = '0.55'
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/restart/restart_transient_from_transient/restart_trans_with_2subs_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 3
  ny = 3
  xmax = 0.3
  ymax = 0.3
[]

[AuxVariables]
  [power_density]
  []
[]

[Variables]
  [temp]
  []
[]

[Kernels]
  [heat_conduction]
     type = Diffusion
     variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
  [heat_source_fuel]
    type = CoupledForce
    variable = temp
    v = power_density
  []
[]

[BCs]
  [bc]
    type = DirichletBC
    variable = temp
    boundary = '1 3'
    value = 100
  []
  [bc2]
    type = NeumannBC
    variable = temp
    boundary = '0 2'
    value = 10.0
  []
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  start_time = 0
  end_time = 3
  dt = 1.0

  nl_abs_tol = 1e-7
  nl_rel_tol = 1e-7
[]

[Postprocessors]
  [temp_fuel_avg]
    type = ElementAverageValue
    variable = temp
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [pwr_density]
    type = ElementIntegralVariablePostprocessor
    block = '0'
    variable = power_density
    execute_on = 'initial timestep_end'
  []
[]

[Outputs]
  perf_graph = true
  exodus = true
  color = true
[]

(tutorials/tutorial02_multiapps/step02_transfers/03_sub_uot.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 10

  xmin = -0.05
  xmax = 0.05
  ymin = -0.05
  ymax = 0.05
  zmax = 3
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [u_integral]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [front]
    type = DirichletBC
    variable = v
    boundary = front
    value = 0
  []
  [back]
    type = DirichletBC
    variable = v
    boundary = back
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[UserObjects]
  [layered_average]
    type = NearestPointLayeredAverage
    points = '0 0 0'
    direction = z
    num_layers = 4
    variable = v
  []
[]

(test/tests/time_steppers/timesequence_stepper/timesequence_restart2.i)

[Mesh]
  file = timesequence_restart1_cp/0002-mesh.cpa.gz
[]

[Problem]
  restart_file_base = timesequence_restart1_cp/0002
  # There is an initial conditions overwriting the restart on the nonlinear variable u
  # As you can see in the gold file, this makes the initial step output be from the
  # initial condition
  allow_initial_conditions_with_restart = true
[]

[Functions]
  [exact_fn]
    type = ParsedFunction
    expression = t*t*(x*x+y*y)
  []

  [forcing_fn]
    type = ParsedFunction
    expression = 2*t*(x*x+y*y)-4*t*t
  []
[]

[Variables]
  [u]
    family = LAGRANGE
    order = SECOND
  []
[]

[ICs]
  [u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []

  [ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  []
[]

[Executioner]
  type = Transient
  end_time = 4.0
  [TimeStepper]
    type = TimeSequenceStepper
    time_sequence = '0   0.85 1.3 2 4'
  []
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_scalar_to_auxscalar_transfer/from_sub/sub_wrong_order.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmin = 0.0
  xmax = 1.0
  ymin = 0.0
  ymax = 1.0
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./b]
    family = SCALAR
    order = FIFTH
  [../]
[]

[ICs]
  [./ic]
    type = ScalarComponentIC
    variable = b
    values = '1.0 2.0 3.0 4.0 5.0'
  [../]
[]

[Kernels]
  [./diffusion]
    type = Diffusion
    variable = u
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient
[]

[Outputs]
  hide = 'u'
  exodus = true
[]

(modules/porous_flow/test/tests/poroperm/linear_test_vals.i)

# Testing PorousFlowPorosityLinear produces correct values:
# porosity = porosity_ref + P_coeff * (P - P_ref) + T_coeff * (T - T_ref) + epv_coeff * (epv - epv_coeff)
#          = 0.5 + 2 * (1 - 0.5) + 0.5 * (2 - -3) + 4 * (3 - 2.5)
#          = 6
[GlobalParams]
  PorousFlowDictator = dictator
[]

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 1
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    number_fluid_phases = 1
    number_fluid_components = 1
    porous_flow_vars = pp
  []
[]

[Variables]
  [pp]
    initial_condition = 1
  []
  [T]
    initial_condition = 2
  []
  [disp]
  []
[]

[ICs]
  [disp]
    type = FunctionIC
    variable = disp
    function = '3 * x'
  []
[]

[Kernels]
  [pp]
    type = TimeDerivative
    variable = pp
  []
  [T]
    type = TimeDerivative
    variable = T
  []
  [disp]
    type = TimeDerivative
    variable = disp
  []
[]

[AuxVariables]
  [porosity]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [porosity]
    type = PorousFlowPropertyAux
    variable = porosity
    property = porosity
  []
[]

[Postprocessors]
  [porosity]
    type = PointValue
    point = '0 0 0'
    variable = porosity
  []
[]

[Materials]
  [ps]
    type = PorousFlow1PhaseFullySaturated
    porepressure = pp
  []
  [temperature]
    type = PorousFlowTemperature
    temperature = T
  []
  [pf]
    type = PorousFlowEffectiveFluidPressure
  []
  [total_strain]
    type = ComputeSmallStrain
    displacements = disp
  []
  [volstrain]
    type = PorousFlowVolumetricStrain
    displacements = disp
  []
  [porosity]
    type = PorousFlowPorosityLinear
    porosity_ref = 0.5
    P_ref = 0.5
    P_coeff = 2.0
    T_ref = -3.0
    T_coeff = 0.5
    epv_ref = 2.5
    epv_coeff = 4.0
  []
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 1
[]

[Outputs]
  csv = true
[]

(test/tests/outputs/intervals/intervals.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  [./out]
    type = Exodus
    time_step_interval = 5
  [../]
[]

(modules/optimization/test/tests/simp/2d.i)

vol_frac = 0.2

[Mesh]
  [planet]
    type = ConcentricCircleMeshGenerator
    has_outer_square = false
    radii = 1
    num_sectors = 10
    rings = 2
    preserve_volumes = false
  []

  [moon]
    type = ConcentricCircleMeshGenerator
    has_outer_square = false
    radii = 0.5
    num_sectors = 8
    rings = 2
    preserve_volumes = false
  []
  [combine]
    type = CombinerGenerator
    inputs = 'planet moon'
    positions = '0 0 0 -1.5 -0.5 0'
  []
[]

[AuxVariables]
  [mat_den]
    family = MONOMIAL
    order = CONSTANT
    initial_condition = 0.1
  []
  [Dc]
    family = MONOMIAL
    order = CONSTANT
    initial_condition = -1.0
  []
[]

[Variables]
  [u]
  []
  [v]
  []
[]

[Kernels]
  [diff_u]
    type = Diffusion
    variable = u
  []
  [dt_u]
    type = TimeDerivative
    variable = u
  []
  [diff_v]
    type = Diffusion
    variable = v
  []
  [dt_v]
    type = TimeDerivative
    variable = v
  []
[]

[Materials]
  [thermal_cond]
    type = GenericFunctionMaterial
    prop_values = '-1.4*abs(y)-2.7*abs(x)'
    prop_names = thermal_cond
    outputs = 'exodus'
  []
  [thermal_compliance_sensitivity]
    type = GenericFunctionMaterial
    prop_values = '-3*abs(y)-1.5*abs(x)'
    prop_names = thermal_sensitivity
    outputs = 'exodus'
  []
[]

[BCs]
  [flux_u]
    type = DirichletBC
    variable = u
    boundary = outer
    value = 3.0
  []

  [flux_v]
    type = DirichletBC
    variable = v
    boundary = outer
    value = 7.0
  []
[]

[UserObjects]
  [rad_avg]
    type = RadialAverage
    radius = 0.1
    weights = linear
    prop_name = thermal_sensitivity
    execute_on = TIMESTEP_END
    force_preaux = true
  []
  [update]
    type = DensityUpdate
    density_sensitivity = Dc
    design_density = mat_den
    volume_fraction = ${vol_frac}
    execute_on = TIMESTEP_BEGIN
  []
  [calc_sense]
    type = SensitivityFilter
    density_sensitivity = Dc
    design_density = mat_den
    filter_UO = rad_avg
    execute_on = TIMESTEP_END
    force_postaux = true
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 15
  nl_rel_tol = 1e-04
[]

[Outputs]
  exodus = true
[]

(test/tests/restart/restart_transient_from_steady/restart_trans_with_sub_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[AuxVariables]
  [./power_density]
  [../]
[]

[Variables]
  [./temp]
#    initial_condition = 1000000
  [../]
[]

[Kernels]
  [./heat_conduction]
     type = Diffusion
     variable = temp
  [../]
  [./heat_ie]
    type = TimeDerivative
    variable = temp
  [../]
  [./heat_source_fuel]
    type = CoupledForce
    variable = temp
    v = power_density
  [../]
[]

[BCs]
  [bc]
    type = DirichletBC
    variable = temp
    boundary = '0 1 2 3'
    value = 450
  []
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  start_time = 0
  end_time = 3
  dt = 1.0

  nl_abs_tol = 1e-7
  nl_rel_tol = 1e-7
[]

[Postprocessors]
  [./temp_fuel_avg]
    type = ElementAverageValue
    variable = temp
    block = '0'
    execute_on = 'initial timestep_end'
  [../]
  [./pwr_density]
    type = ElementIntegralVariablePostprocessor
    block = '0'
    variable = power_density
    execute_on = 'initial timestep_end'
  [../]
[]

[Outputs]
  perf_graph = true
  exodus = true
  color = true
[]

(modules/porous_flow/test/tests/dirackernels/bh_except05.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    mass_fraction_component = 0
    point_file = bh02.bh
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(test/tests/time_integrators/explicit-euler/ee-1d-quadratic-neumann.i)

[GlobalParams]
  implicit = false
[]

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = -1
  xmax = 1
  nx = 10
  elem_type = EDGE3
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = x*x-2*t+t*x*x
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*x*x
  [../]

  [./left_bc_fn]
    type = ParsedFunction
    expression = -t*2*x
  [../]
  [./right_bc_fn]
    type = ParsedFunction
    expression = t*2*x
  [../]
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./abs]
    type = Reaction
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./left]
    type = FunctionNeumannBC
    variable = u
    boundary = '0'
    function = left_bc_fn
  [../]

  [./right]
    type = FunctionNeumannBC
    variable = u
    boundary = '1'
    function = right_bc_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'explicit-euler'
  solve_type = 'LINEAR'

  l_tol = 1e-12
  start_time = 0.0
  num_steps = 10
  dt = 0.001
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(test/tests/multiapps/check_error/sub1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(test/tests/nodalkernels/constant_rate/constant_rate.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./nodal_ode]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[NodalKernels]
  [./td]
    type = TimeDerivativeNodalKernel
    variable = nodal_ode
  [../]
  [./constant_rate]
    type = ConstantRate
    variable = nodal_ode
    rate = 1.0
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(test/tests/batch_material/test.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 100
    ny = 100
  []
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = v
  []
  [diff]
    type = Diffusion
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[UserObjects]
  [batch]
    type = BatchMaterialTest
    var1 = v
    prop1 = tensor
    prop2 = number
    execute_on = 'LINEAR'
  []
[]

[Materials]
  [prop1]
    type = GenericConstantRankTwoTensor
    tensor_name = tensor
    tensor_values = '1 2 3 4 5 6 7 8 9'
  []
  [prop2]
    type = GenericFunctionMaterial
    prop_names = number
    prop_values = 'x^2+sin(y*3)+cos(t*10)'
  []

  [test]
    type = BatchTestMaterial
    var1 = v
    prop1 = tensor
    prop2 = number
    batch_uo = batch
  []
[]

[Postprocessors]
  [average1]
    type = ElementAverageMaterialProperty
    mat_prop = batch_out1
  []
  [average2]
    type = ElementAverageMaterialProperty
    mat_prop = batch_out2
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 0.1
  num_steps = 3
[]

(test/tests/postprocessors/postprocessor_dependency/element_side_pp.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 3
  ny = 3
  elem_type = QUAD9
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
    [./InitialCondition]
      type = ConstantIC
      value = 2.8
    [../]
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
    [./InitialCondition]
      type = ConstantIC
      value = 5.4
    [../]
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '1'
    value = 0
  [../]
[]

[Postprocessors]

  [./sidepp]
    type = SideIntegralVariablePostprocessor
    variable = v
    execute_on = timestep_end
    boundary = '0 1 2 3'
  [../]

  [./passsidepp]
    type = ElementSidePP
    side_pp = sidepp
    execute_on = timestep_end
  [../]

[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 0.3
[]

[Outputs]
  file_base = out
  csv = true
[]

(test/tests/functions/piecewise_multilinear/twoDb.i)

# PiecewiseMultilinear function tests in 2D
# The spatial grid is 1<=x<=5 and 1<=y<=5
# At t<=1 a disk of radius 0.5 sits at (x,y)=(1.45,1.45): it has f=1.  Elsewhere f=0
# At t>=0 a disk of radius 0.5 sits at (x,y)=(4,55,4,55): it has f=1.  Elsewhere f=0
# The disks' centers were chosen specially so that the disk partially sits outside the grid
# which illustrates the extrapolation process used by GriddedData and PiecewiseMultilinear
[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 6
  nx = 60
  ymin = 0
  ymax = 6
  ny = 60
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./moving_disk_var]
  [../]
[]

[AuxKernels]
  [./moving_disk_AuxK]
    type = FunctionAux
    variable = moving_disk_var
    function = moving_disk_fcn
  [../]
[]


[Functions]
  [./moving_disk_fcn]
    type = PiecewiseMultilinear
    data_file = twoD2.txt
  [../]
[]


[Executioner]
  type = Transient
  dt = 0.5
  end_time = 10
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = twoDb
  hide = dummy
  exodus = true
  csv = true
[]

(test/tests/functions/generic_function_material/generic_function_vector_material_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Functions]
  [diff_func_x]
    type = ParsedFunction
    expression = 1/t
  []
  [diff_func_y]
    type = ParsedFunction
    expression = 't*t + x'
  []
[]

[Kernels]
  [diff]
    type = VectorMatDiffusion
    variable = u
    coeff = diffusion
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = '0'
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = '1'
  []
[]

[Materials]
  [gfm]
    type = GenericFunctionVectorMaterial
    block = 0
    prop_names = diffusion
    prop_values = 'diff_func_x diff_func_y 0'
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/output_in_position/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = sub.i
    output_in_position = true
  [../]
[]

(test/tests/outputs/debug/show_execution_auxkernels.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Debug]
  show_execution_order = 'ALWAYS'
[]

[AuxVariables]
  [a]
    initial_condition = 1
  []
  [b]
    initial_condition = 2
  []
  [c]
    initial_condition = 3
  []

  [a_elem]
    order = CONSTANT
    family = MONOMIAL
    initial_condition = 1
  []
  [b_elem]
    order = CONSTANT
    family = MONOMIAL
    initial_condition = 2
  []
  [c_elem]
    order = CONSTANT
    family = MONOMIAL
    initial_condition = 3
  []
  [d_elem]
    order = CONSTANT
    family = MONOMIAL
    initial_condition = 3
  []
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[Functions]
  [exact_fn]
    type = ParsedFunction
    expression = t
  []

  [a_fn]
    type = ParsedFunction
    expression = t
  []
  [b_fn]
    type = ParsedFunction
    expression = (4-t)/2
  []
[]

[AuxKernels]
  # Nodal
  # this one needs a and b set, should run last
  [c_saux]
    type = QuotientAux
    variable = c
    numerator = a
    denominator = b
    execute_on = 'initial timestep_end'
  []
  # setting b requires a
  [b_saux]
    type = ProjectionAux
    variable = b
    v = a
    execute_on = 'linear timestep_end'
  []

  # Elements
  # this one needs a and b set, should run last
  [c_saux_elem]
    type = QuotientAux
    variable = c_elem
    numerator = a_elem
    denominator = b_elem
    execute_on = 'initial timestep_end'
  []
  # setting b requires a
  [b_saux_elem]
    type = ProjectionAux
    variable = b_elem
    v = a_elem
    execute_on = 'linear timestep_end'
  []

  # boundary auxkernel
  [real_property]
    type = MaterialRealAux
    variable = d_elem
    property = 3
    boundary = 'top bottom'
  []
[]

[Kernels]
  [ie]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  []
[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'

  solve_type = 'PJFNK'
  start_time = 0.0
  num_steps = 1
  dt = 1
[]

(test/tests/meshgenerators/lower_d_block_generator/ids.i)

[Mesh]
  [./gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
  []

  [./lower_d_block]
    type = LowerDBlockFromSidesetGenerator
    input = gmg
    new_block_id = 10
    sidesets = '0 0 1 2 3'
  []
[]

[Variables]
  [./u]
    block = 0
  [../]
  [./v]
    block = 10
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
    block = 0
  [../]
  [./srcv]
    type = BodyForce
    block = 10
    variable = v
    function = 1
  [../]
  [./time_v]
    type = TimeDerivative
    block = 10
    variable = v
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/functional_expansion_tools/test/tests/errors/multiapp_bad_function_series.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '3'
    physical_bounds = '0.0  10.0'
    x = Legendre
  [../]
  [./AnotherFunction]
    type = ConstantFunction
    value = -1
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = multiapp_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = AnotherFunction
    multi_app_object_name = FX_Basis_Value_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(test/tests/bcs/periodic/trapezoid_non_periodic.i)

[Mesh]
  file = trapezoid.e
  uniform_refine = 1
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[AuxVariables]
  [periodic_dist]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []

  [forcing]
    type = GaussContForcing
    variable = u
    x_center = 2
    y_center = -1
    x_spread = 0.25
    y_spread = 0.5
  []

  [dot]
    type = TimeDerivative
    variable = u
  []
[]

[AuxKernels]
  [periodic_dist]
    type = PeriodicDistanceAux
    variable = periodic_dist
    point = '0.2 1.7 0.0'
  []
[]

[BCs]
  [right]
    type = DirichletBC
    variable = u
    value = 1
    boundary = 2
  []
  [left]
    type = DirichletBC
    variable = u
    value = 2
    boundary = 2
  []
[]

[Executioner]
  type = Transient
  dt = 0.5
  num_steps = 6
  solve_type = NEWTON
[]

[Outputs]
  exodus = true
[]

(modules/ray_tracing/test/tests/traceray/adaptivity/adaptivity_1d.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 2
  []
[]

[Variables/u]
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  steps = 1
  marker = marker
  initial_marker = marker
  max_h_level = 2
  [Indicators/indicator]
    type = GradientJumpIndicator
    variable = u
  []
  [Markers/marker]
    type = ErrorFractionMarker
    indicator = indicator
    coarsen = 0.1
    refine = 0.1
  []
[]

[UserObjects/study]
  type = LotsOfRaysRayStudy
  ray_kernel_coverage_check = false
  vertex_to_vertex = true
  centroid_to_vertex = true
  centroid_to_centroid = true
  execute_on = timestep_end
[]

[RayBCs/kill]
  type = KillRayBC
  boundary = 'left right'
[]

[Postprocessors]
  [total_distance]
    type = RayTracingStudyResult
    study = study
    result = total_distance
    execute_on = timestep_end
  []
  [total_rays]
    type = RayTracingStudyResult
    study = study
    result = total_rays_started
    execute_on = timestep_end
  []
[]

[Outputs]
  exodus = false
  csv = true
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test6.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 4
    ny = 4
    nz = 2
    xmin = 0
    xmax = 4
    ymin = 0
    ymax = 4
    zmin = 0
    zmax = 2
  []

  [SubdomainBoundingBox1]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '1 2 1'
  []
  [SubdomainBoundingBox2]
    type = SubdomainBoundingBoxGenerator
    input = SubdomainBoundingBox1
    block_id = 1
    bottom_left = '1 1 0'
    top_right = '3 3 1'
  []
  [SubdomainBoundingBox3]
    type = SubdomainBoundingBoxGenerator
    input = SubdomainBoundingBox2
    block_id = 1
    bottom_left = '2 2 1'
    top_right = '3 3 2'
  []
  [ed0]
    type = BlockDeletionGenerator
    block = 1
    input = SubdomainBoundingBox3
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [top]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 1
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 10
  dt = 10

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/initial_intactive/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    positions = '0 0 0'
    type = TransientMultiApp
    input_files = 'sub.i'
    app_type = MooseTestApp
    enable = false # Start with a multiapp that's disabled up front
    sub_cycling = true
  [../]
[]

[Controls]
  [./multiapp_enable]
    type = TimePeriod
    disable_objects = 'MultiApps::sub'
    start_time = 0
    end_time = 1.3
    execute_on = 'timestep_begin'
    reverse_on_false = true
  [../]
[]

(test/tests/time_steppers/constant_dt/constant_dt.i)

###########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of the TimeStepper system.
#
# @Requirement F1.20
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  # Pluggable TimeStepper System
  [./TimeStepper]
    type = ConstantDT
    dt = 0.2
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/heat_transfer/test/tests/directional_flux_bc/2d_elem.i)

[Mesh]
  [shade]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 1
    ny = 3
    xmax = 0.2
    ymax = 0.5
  []

  [screen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 1
    ny = 20
    xmax = 0.05
  []
  [screen_block]
    type = SubdomainIDGenerator
    input = screen
    subdomain_id = 1
  []

  [combine]
    type = CombinerGenerator
    inputs = 'shade screen_block'
    positions = '0 0 0 1 0 0'
  []

  [all_sides]
    type = SideSetsAroundSubdomainGenerator
    block = '0 1'
    new_boundary = 100
    input = combine
  []
  [shaded_side]
    type = SideSetsAroundSubdomainGenerator
    normal = '-1 0 0'
    block = 1
    input = all_sides
    new_boundary = 101
  []
[]

[GlobalParams]
  illumination_flux = '1 0 0'
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [dt]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [flux]
    type = DirectionalFluxBC
    variable = u
    boundary = 101
    self_shadow_uo = shadow
  []
[]

[UserObjects]
  [shadow]
    type = SelfShadowSideUserObject
    boundary = 100
    execute_on = INITIAL
  []
[]

[Postprocessors]
  [light]
    type = SideIntegralVariablePostprocessor
    variable = u
    boundary = 101
  []
[]

[Executioner]
  type = Transient
  dt = 0.01
  num_steps = 1
[]

[Outputs]
  csv = true
[]

(test/tests/auxkernels/constant_scalar_aux/constant_scalar_aux.i)

#
# Testing a solution that is second order in space and first order in time
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD9
[]

[AuxVariables]
  [./x]
    family = SCALAR
    order = FIRST
  [../]
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[ICs]
  [./ic_x]
    type = ScalarConstantIC
    variable = x
    value = 11
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    expression = ((x*x)+(y*y))-(4*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]
[]

[AuxScalarKernels]
  [./const_x]
    type = ConstantScalarAux
    variable = x
    value = 11
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
    execute_on = 'initial timestep_end'
  [../]

[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.25

#  [./Adaptivity]
#    refine_fraction = 0.2
#    coarsen_fraction = 0.3
#    max_h_level = 4
#  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/postprocessors/nodal_extreme_value/nodal_max_value_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
[]

[Functions]
  [exact_fn]
    type = ParsedFunction
    expression = (sin(pi*t))
  []

  [forcing_fn]
    type = ParsedFunction
    expression = sin(pi*t)
  []
[]

[Variables]
  active = 'u'

  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  active = 'diff' #ffn'

  [ie]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []

  [ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  num_steps = 20
[]

[Postprocessors]
  [max_nodal_val]
    type = NodalExtremeValue
    variable = u
  []
[]

[Outputs]
  file_base = out_nodal_max
  exodus = true
[]

(modules/porous_flow/examples/multiapp_fracture_flow/diffusion_multiapp/fracture_app.i)

# Temperature is transferred between the fracture and matrix apps
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 100
    xmin = 0
    xmax = 50.0
  []
[]

[Variables]
  [frac_T]
  []
[]

[ICs]
  [frac_T]
    type = FunctionIC
    variable = frac_T
    function = 'if(x<1E-6, 2, 0)'  # delta function
  []
[]

[AuxVariables]
  [transferred_matrix_T]
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = frac_T
  []
  [fracture_diffusion]
    type = Diffusion
    variable = frac_T
  []
  [toMatrix]
    type = PorousFlowHeatMassTransfer
    variable = frac_T
    v = transferred_matrix_T
    transfer_coefficient = 0.004
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]

[VectorPostprocessors]
  [final_results]
    type = LineValueSampler
    start_point = '0 0 0'
    end_point = '50 0 0'
    num_points = 11
    sort_by = x
    variable = frac_T
    outputs = final_csv
  []
[]

[Outputs]
  print_linear_residuals = false
  [final_csv]
    type = CSV
    sync_times = 100
    sync_only = true
  []
[]

[MultiApps]
  [matrix_app]
    type = TransientMultiApp
    input_files = matrix_app.i
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [T_to_matrix]
    type = MultiAppCopyTransfer
    to_multi_app = matrix_app
    source_variable = frac_T
    variable = transferred_frac_T
  []
  [T_from_matrix]
    type = MultiAppCopyTransfer
    from_multi_app = matrix_app
    source_variable = matrix_T
    variable = transferred_matrix_T
  []
[]

(test/tests/restart/restart_steady_from_transient/transient.i)

# We run a simple problem (5 time steps and save off the solution)
# In part2, we load the solution and solve a steady problem. The test check, that the initial state in part 2 is the same as the last state from part1

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
  parallel_type = replicated
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = -4+(x*x+y*y)
  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'ie diff ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.2
  start_time = 0
  num_steps = 5
[]

[Outputs]
  exodus = true
  checkpoint = true
[]

(test/tests/userobjects/postprocessor_spatial_user_object/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 4
[]

[Functions]
  [./ic_fn]
    type = ParsedFunction
    expression = 'x * y'
  [../]
[]

[Variables]
  [./u]
    family = LAGRANGE
    order = FIRST
  [../]
[]

[ICs]
  [./u_ic]
    type = FunctionIC
    variable = u
    function = ic_fn
  [../]

  [./a_ic]
    type = ConstantIC
    variable = a
    value = 1
  [../]
[]

[AuxVariables]
  [./a]
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./rhs]
    type = BodyForce
    variable = u
    function = 1
  [../]
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    input_files = 'sub.i'
    positions = '
      0.25 0.25 0
      0.75 0.75 0'
    execute_on = 'initial timestep_end'
  [../]
[]

[Transfers]
  [./master_to_sub]
    type = MultiAppNearestNodeTransfer
    to_multi_app = sub
    source_variable = u
    variable = a
  [../]

  [./sub_to_master]
    type = MultiAppUserObjectTransfer
    from_multi_app = sub
    user_object = fn_uo
    variable = a
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 10
[]

[Outputs]
  exodus = true
[]

(test/tests/userobjects/setup_interface_count/nodal.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 2
    ny = 2
  []
  [./right_side]
    input = gen
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0 0 0'
    top_right = '1 0.5 0'
    block_id = 1
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [./initial] # 1 per simulation
    type = NodalSetupInterfaceCount
    count_type = 'initial'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./timestep] # once per timestep
    type = NodalSetupInterfaceCount
    count_type = 'timestep'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./subdomain] # 0, not execute for this type of object
    type = NodalSetupInterfaceCount
    count_type = 'subdomain'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./initialize] # 1 for initial and 2 for each timestep
    type = NodalSetupInterfaceCount
    count_type = 'initialize'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./finalize] # 1 for initial and 2 for each timestep
    type = NodalSetupInterfaceCount
    count_type = 'finalize'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./execute] # 6 for initial and 12 for each timestep (3 nodes on two boundaries)
    type = NodalSetupInterfaceCount
    count_type = 'execute'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
  [./threadjoin] # 1 for initial and 2 for each timestep
    type = NodalSetupInterfaceCount
    count_type = 'threadjoin'
    execute_on = 'initial timestep_begin timestep_end'
    boundary = '1 2'
  [../]
[]

[Outputs]
  csv = true
[]

(test/tests/postprocessors/num_failed_timesteps/failed_timesteps.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  [TimeStepper]
    type = ConstantDT
    dt = 0.2
  []
[]

[Problem]
  type = FailingProblem
  fail_steps = '1 1 1 2 4 5'
[]

[Postprocessors]
  [num_failed]
    type = NumFailedTimeSteps
  []
[]

(test/tests/transfers/multiapp_scalar_to_auxscalar_transfer/from_sub/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmin = 0.0
  xmax = 1.0
  ymin = 0.0
  ymax = 1.0
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./b]
    family = SCALAR
    order = SIXTH
  [../]
[]

[ICs]
  [./ic]
    type = ScalarComponentIC
    variable = b
    values = '1.0 2.0 3.0 4.0 5.0 6.0'
  [../]
[]

[Kernels]
  [./diffusion]
    type = Diffusion
    variable = u
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient
[]

[Outputs]
  hide = 'u'
  exodus = true
[]

(test/tests/multiapps/picard_multilevel/2level_picard/sub_level1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [u]
  []
  [w]
  []
[]

[Kernels]
  [time_derivative]
    type = TimeDerivative
    variable = v
  []
  [diffusion]
    type = Diffusion
    variable = v
  []
  [source]
    type = CoupledForce
    variable = v
    v = u
  []
[]

[BCs]
  [dirichlet0]
    type = DirichletBC
    variable = v
    boundary = '0'
    value = 0
  []
  [dirichlet]
    type = DirichletBC
    variable = v
    boundary = '2'
    value = 100
  []
[]

[Postprocessors]
  [avg_u]
    type = ElementAverageValue
    variable = u
    execute_on = 'initial timestep_begin timestep_end'
  []
  [avg_v]
    type = ElementAverageValue
    variable = v
    execute_on = 'initial timestep_begin timestep_end'
  []
  [avg_w]
    type = ElementAverageValue
    variable = w
    execute_on = 'initial timestep_begin timestep_end'
  []
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  end_time = 0.1
  dt = 0.02
[]

[MultiApps]
  [level2-]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = sub_level2.i
    execute_on = 'timestep_end'
  []
[]

[Transfers]
  [v_to_sub]
    type = MultiAppGeneralFieldShapeEvaluationTransfer
    source_variable = v
    variable = v
    to_multi_app = level2-
    execute_on = 'timestep_end'
  []
  [w_from_sub]
    type = MultiAppGeneralFieldShapeEvaluationTransfer
    source_variable = w
    variable = w
    from_multi_app = level2-
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  exodus = true
  perf_graph = true
  [screen]
    type = Console
    execute_postprocessors_on = "timestep_end timestep_begin"
  []
[]

(modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialMultiphase.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
  xmin = -20
  xmax = 20
  ymin = -20
  ymax = 20
[]

[GlobalParams]
  op_num = 2
  var_name_base = etab
[]

[Variables]
  [./w]
  [../]
  [./etaa0]
  [../]
  [./etab0]
  [../]
  [./etab1]
  [../]
[]

[AuxVariables]
  [./bnds]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]

  [./IC_etaa0]
    type = FunctionIC
    variable = etaa0
    function = ic_func_etaa0
  [../]
  [./IC_etab0]
    type = FunctionIC
    variable = etab0
    function = ic_func_etab0
  [../]
  [./IC_etab1]
    type = FunctionIC
    variable = etab1
    function = ic_func_etab1
  [../]
  [./IC_w]
    type = ConstantIC
    value = -0.05
    variable = w
  [../]
[]

[Functions]
  [./ic_func_etaa0]
    type = ParsedFunction
    expression = 'r:=sqrt(x^2+y^2);0.5*(1.0-tanh((r-10.0)/sqrt(2.0)))'
  [../]
  [./ic_func_etab0]
    type = ParsedFunction
    expression = 'r:=sqrt(x^2+y^2);0.5*(1.0+tanh((r-10)/sqrt(2.0)))*0.5*(1.0+tanh((y)/sqrt(2.0)))'
  [../]
  [./ic_func_etab1]
    type = ParsedFunction
    expression = 'r:=sqrt(x^2+y^2);0.5*(1.0+tanh((r-10)/sqrt(2.0)))*0.5*(1.0-tanh((y)/sqrt(2.0)))'
  [../]
[]


[BCs]
[]

[Kernels]
# Order parameter eta_alpha0
  [./ACa0_bulk]
    type = ACGrGrMulti
    variable = etaa0
    v =           'etab0 etab1'
    gamma_names = 'gab   gab'
  [../]
  [./ACa0_sw]
    type = ACSwitching
    variable = etaa0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etab0 etab1 w'
  [../]
  [./ACa0_int]
    type = ACInterface
    variable = etaa0
    kappa_name = kappa
  [../]
  [./ea0_dot]
    type = TimeDerivative
    variable = etaa0
  [../]
# Order parameter eta_beta0
  [./ACb0_bulk]
    type = ACGrGrMulti
    variable = etab0
    v =           'etaa0 etab1'
    gamma_names = 'gab   gbb'
  [../]
  [./ACb0_sw]
    type = ACSwitching
    variable = etab0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etaa0 etab1 w'
  [../]
  [./ACb0_int]
    type = ACInterface
    variable = etab0
    kappa_name = kappa
  [../]
  [./eb0_dot]
    type = TimeDerivative
    variable = etab0
  [../]
# Order parameter eta_beta1
  [./ACb1_bulk]
    type = ACGrGrMulti
    variable = etab1
    v =           'etaa0 etab0'
    gamma_names = 'gab   gbb'
  [../]
  [./ACb1_sw]
    type = ACSwitching
    variable = etab1
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etaa0 etab0 w'
  [../]
  [./ACb1_int]
    type = ACInterface
    variable = etab1
    kappa_name = kappa
  [../]
  [./eb1_dot]
    type = TimeDerivative
    variable = etab1
  [../]
#Chemical potential
  [./w_dot]
    type = SusceptibilityTimeDerivative
    variable = w
    f_name = chi
    coupled_variables = '' # in this case chi (the susceptibility) is simply a constant
  [../]
  [./Diffusion]
    type = MatDiffusion
    variable = w
    diffusivity = Dchi
    args = ''
  [../]
  [./coupled_etaa0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etaa0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0 etab1'
  [../]
  [./coupled_etab0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etab0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0 etab1'
  [../]
  [./coupled_etab1dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etab1
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0 etab1'
  [../]
[]

[AuxKernels]
  [./BndsCalc]
    type = BndsCalcAux
    variable = bnds
    execute_on = timestep_end
  [../]
[]

# enable_jit set to false in many materials to make this test start up faster.
# It is recommended to set enable_jit = true or just remove these lines for
# production runs with this model
[Materials]
  [./ha]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = ha
    all_etas = 'etaa0 etab0 etab1'
    phase_etas = 'etaa0'
  [../]
  [./hb]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hb
    all_etas = 'etaa0 etab0 etab1'
    phase_etas = 'etab0 etab1'
  [../]
  [./omegaa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegaa
    material_property_names = 'Vm ka caeq'
    expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
    derivative_order = 2
    enable_jit = false
  [../]
  [./omegab]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegab
    material_property_names = 'Vm kb cbeq'
    expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq'
    derivative_order = 2
    enable_jit = false
  [../]
  [./rhoa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhoa
    material_property_names = 'Vm ka caeq'
    expression = 'w/Vm^2/ka + caeq/Vm'
    derivative_order = 2
    enable_jit = false
  [../]
  [./rhob]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhob
    material_property_names = 'Vm kb cbeq'
    expression = 'w/Vm^2/kb + cbeq/Vm'
    derivative_order = 2
    enable_jit = false
  [../]
  [./const]
    type = GenericConstantMaterial
    prop_names =  'kappa_c  kappa   L   D    chi  Vm   ka    caeq kb    cbeq  gab gbb mu'
    prop_values = '0        1       1.0 1.0  1.0  1.0  10.0  0.1  10.0  0.9   4.5 1.5 1.0'
  [../]
  [./Mobility]
    type = DerivativeParsedMaterial
    property_name = Dchi
    material_property_names = 'D chi'
    expression = 'D*chi'
    derivative_order = 2
    enable_jit = false
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  lu           1'
  l_tol = 1.0e-3
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1e-8
  num_steps = 2
  [./TimeStepper]
    type = SolutionTimeAdaptiveDT
    dt = 0.1
  [../]

[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/examples/multiapp_fracture_flow/diffusion_multiapp/matrix_app.i)

# Temperature is transferred between the fracture and matrix apps
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 100
    xmin = 0
    xmax = 50.0
  []
[]

[Variables]
  [matrix_T]
  []
[]

[AuxVariables]
  [transferred_frac_T]
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = matrix_T
  []
  [matrix_diffusion]
    type = Diffusion
    variable = matrix_T
  []
  [fromFrac]
    type = PorousFlowHeatMassTransfer
    variable = matrix_T
    v = transferred_frac_T
    transfer_coefficient = 0.004
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]


[Outputs]
  print_linear_residuals = false
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/restricted_elem_parent.i)

num_layers = 2

[Mesh]
  [box]
    type = GeneratedMeshGenerator
    dim = 3
    nx = ${num_layers}
    ny = 3
    nz = 3
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[AuxVariables]
  [a]
    family = MONOMIAL
    order = CONSTANT
  []

  [s]
  []
[]

[AuxKernels]
  [s_ak]
    type = ParsedAux
    variable = s
    use_xyzt = true
    expression = 'x+(z*z)'
  []
[]

[Functions]
[]

[Postprocessors]
  [a_avg]
    type = ElementAverageValue
    variable = a
  []
[]

[UserObjects]
  [S_avg_front]
    type = LayeredSideAverage
    boundary = front
    variable = s
    num_layers = ${num_layers}
    direction = x
  []

  [S_avg_back]
    type = LayeredSideAverage
    boundary = back
    variable = s
    num_layers = ${num_layers}
    direction = x
  []
[]

[MultiApps]
  [ch0]
    type = TransientMultiApp
    input_files = 'restricted_elem_sub.i'
    bounding_box_padding = '0 0.5 1'
    positions = '0 0.5 -0.1'
    output_in_position = true
    cli_args = 'yy=0'
  []
  [ch1]
    type = TransientMultiApp
    input_files = 'restricted_elem_sub.i'
    bounding_box_padding = '0 0.5 1'
    positions = '0 0.5  1.1'
    output_in_position = true
    cli_args = 'yy=1'
  []
[]

[Transfers]
  [from_ch0]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_boundaries = back
    from_multi_app = ch0
    variable = a
    source_user_object = A_avg
    # Bounding box padding is not obeyed
    fixed_bounding_box_size = '0 1 1.5'
    from_app_must_contain_point = false
  []

  [from_ch1]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_boundaries = front
    from_multi_app = ch1
    variable = a
    source_user_object = A_avg
    fixed_bounding_box_size = '0 1 1.5'
    from_app_must_contain_point = false
  []

  [to_ch0]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_blocks = 20
    to_multi_app = ch0
    variable = S
    source_user_object = S_avg_back
    fixed_bounding_box_size = '0 1 1.5'
    from_app_must_contain_point = false
  []

  [to_ch1]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_blocks = 20
    to_multi_app = ch1
    variable = S
    source_user_object = S_avg_front
    fixed_bounding_box_size = '0 1 1.5'
    from_app_must_contain_point = false
  []
[]

[Executioner]
  type = Transient
  num_steps = 2

  dt = 1
  nl_abs_tol = 1e-7
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/jacobian/mass01_fully_saturated.i)

# FullySaturatedMassTimeDerivative
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
  displacements = 'disp_x disp_y disp_z'
[]

[FluidProperties]
  [the_simple_fluid]
    type = SimpleFluidProperties
    thermal_expansion = 0.5
    bulk_modulus = 1.5
    density0 = 1.0
  []
[]

[Variables]
  [pp]
  []
  [T]
  []
  [disp_x]
  []
  [disp_y]
  []
  [disp_z]
  []
[]

[ICs]
  [disp_x]
    type = RandomIC
    min = -0.1
    max = 0.1
    variable = disp_x
  []
  [disp_y]
    type = RandomIC
    min = -0.1
    max = 0.1
    variable = disp_y
  []
  [disp_z]
    type = RandomIC
    min = -0.1
    max = 0.1
    variable = disp_z
  []
  [pp]
    type = RandomIC
    variable = pp
    min = 0
    max = 1
  []
  [T]
    type = RandomIC
    variable = T
    min = 0
    max = 1
  []
[]

[BCs]
  # necessary otherwise volumetric strain rate will be zero
  [disp_x]
    type = DirichletBC
    variable = disp_x
    value = 0
    boundary = 'left right'
  []
  [disp_y]
    type = DirichletBC
    variable = disp_y
    value = 0
    boundary = 'left right'
  []
  [disp_z]
    type = DirichletBC
    variable = disp_z
    value = 0
    boundary = 'left right'
  []
[]

[Kernels]
  [mass0]
    type = PorousFlowFullySaturatedMassTimeDerivative
    variable = pp
    coupling_type = ThermoHydroMechanical
    biot_coefficient = 0.9
  []
  [dummyT]
    type = TimeDerivative
    variable = T
  []
  [grad_stress_x]
    type = StressDivergenceTensors
    variable = disp_x
    component = 0
  []
  [grad_stress_y]
    type = StressDivergenceTensors
    variable = disp_y
    component = 1
  []
  [grad_stress_z]
    type = StressDivergenceTensors
    variable = disp_z
    component = 2
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp disp_x disp_y disp_z T'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [simple1]
    type = TensorMechanicsPlasticSimpleTester
    a = 0
    b = 1
    strength = 1E20
    yield_function_tolerance = 1.0E-9
    internal_constraint_tolerance = 1.0E-9
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    bulk_modulus = 2.0
    shear_modulus = 3.0
  []
  [strain]
    type = ComputeSmallStrain
  []
  [stress]
    type = ComputeLinearElasticStress
  []
  [vol_strain]
    type = PorousFlowVolumetricStrain
  []
  [temperature]
    type = PorousFlowTemperature
    temperature = T
  []
  [ppss]
    type = PorousFlow1PhaseFullySaturated
    porepressure = pp
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = the_simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst  # only the initial vaue of this is ever used
    porosity = 0.1
  []
  [biot_modulus]
    type = PorousFlowConstantBiotModulus
    biot_coefficient = 0.9
    fluid_bulk_modulus = 1.5
    solid_bulk_compliance = 0.5
  []
  [thermal_expansion]
    type = PorousFlowConstantThermalExpansionCoefficient
    biot_coefficient = 0.9
    fluid_coefficient = 0.5
    drained_coefficient = 0.4
  []
[]

[Preconditioning]
  [check]
    type = SMP
    full = true
    #petsc_options = '-snes_test_display'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 2
[]

[Outputs]
  exodus = false
[]

(test/tests/bcs/periodic/auto_periodic_bc_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  nz = 0
  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./periodic_dist]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'diff forcing dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = GaussContForcing
    variable = u
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./periodic_dist]
    type = PeriodicDistanceAux
    variable = periodic_dist
    point = '4 6 0'
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = u
      auto_direction = 'x y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 20
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_auto
  exodus = true
[]

(test/tests/executioners/nl_forced_its/many_nl_forced_its_ref_res.i)

[Problem]
  type = ReferenceResidualProblem
  reference_vector = 'ref'
  extra_tag_vectors = 'ref'
[]

[Mesh]
  type = GeneratedMesh
  dim = 1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
    extra_vector_tags = ref
  [../]
  [./dt]
    type = TimeDerivative
    variable = u
    extra_vector_tags = ref
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    preset = false
    boundary = left
    value = -1
  [../]
  [./right]
    type = DirichletBC
    variable = u
    preset = false
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  line_search = none
  nl_forced_its = 10
  num_steps = 1
[]

(modules/stochastic_tools/test/tests/transfers/monte_carlo/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

[Postprocessors]
  [left_bc]
    type = PointValue
    point = '0 0 0'
    variable = u
  []
  [right_bc]
    type = PointValue
    point = '1 0 0'
    variable = u
  []
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/restart/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  ymin = 0
  xmax = 1
  ymax = 1
  nx = 10
  ny = 10
[]

[Functions]
  [v_fn]
    type = ParsedFunction
    expression = t*x
  []
  [ffn]
    type = ParsedFunction
    expression = x
  []
[]

[AuxVariables]
  [v]
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [ufn]
    type = BodyForce
    variable = u
    function = ffn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = v_fn
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
  checkpoint = true
[]

[MultiApps]
  [sub_app]
    app_type = MooseTestApp
    type = TransientMultiApp
    input_files = 'sub.i'
    execute_on = timestep_end
    positions = '0 -1 0'
  []
[]

[Transfers]
  [from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub_app
    source_variable = u
    variable = v
  []
[]

(test/tests/multiapps/multilevel/time_dt_from_parent_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmax = 100
[]

[Functions]
  [./dts]
    type = PiecewiseLinear
    x = '0     1'
    y = '0.25  1'
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  dt = 0.25
  [./TimeStepper]
    type = FunctionDT
    function = dts
  [../]
[]

[Outputs]
  exodus = true
  [./out]
    type = Console
    output_file = true
  [../]
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0 0.5 0.5 0'
    input_files = time_dt_from_parent_sub.i
  [../]
[]

(test/tests/outputs/oversample/over_sampling_second_file.i)

[Mesh]
  type = FileMesh
  # Read in and work with a second order mesh
  file = wedge18_mesh.e
  # If we have an oversample mesh file, we haven not yet implemented
  # synchronization of its partitioning with the problem mesh, so we
  # need to keep the problem mesh replicated.
  parallel_type = replicated
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = -4+(x*x+y*y)
  [../]
[]

[Variables]
  active = 'u'

  [./u]
  [../]
[]

[Kernels]
  active = 'ie diff ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '1 2 4'
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.2
  start_time = 0
  num_steps = 3
[]

[Outputs]
  file_base = out_wedge
  [./oversample]
    type = Exodus
    file_base = out_wedge_oversample
    file = wedge6_mesh.e
  [../]
[]

(test/tests/controls/time_periods/dampers/control.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_rel_tol = 0.95e-8
[]

[Postprocessors]
  [./nlin]
    type = NumNonlinearIterations
  [../]
[]

[Dampers]
  [./const_damp]
    type = ConstantDamper
    damping = 0.9
  [../]
[]

[Outputs]
  csv = true
[]

[Controls]
  [./damping_control]
    type = TimePeriod
    disable_objects = '*::const_damp'
    start_time = 0.25
    execute_on = 'initial timestep_begin'
  [../]
[]

(modules/thermal_hydraulics/test/tests/components/heat_transfer_from_external_app_1phase/phy.T_wall_transfer_3eqn.parent.i)

# This tests a temperature transfer using the MultiApp system.  Simple heat
# conduction problem is solved, then the temperature is picked up by the child
# side of the solve, child side solves and transfers its variables back to the
# master

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = 1
  nx = 10
[]

[Functions]
  [left_bc_fn]
    type = PiecewiseLinear
    x = '0   1'
    y = '300 310'
  []
[]

[Variables]
  [T]
  []
[]

[ICs]
  [T_ic]
    type = ConstantIC
    variable = T
    value = 300
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = T
  []

  [diff]
    type = Diffusion
    variable = T
  []
[]

[BCs]
  [left]
    type = FunctionDirichletBC
    variable = T
    boundary = left
    function = left_bc_fn
  []
[]

[Executioner]
  type = Transient
  dt = 0.5
  end_time = 5
  nl_abs_tol = 1e-10
  abort_on_solve_fail = true
[]

[MultiApps]
  [thm]
    type = TransientMultiApp
    app_type = ThermalHydraulicsApp
    input_files = phy.T_wall_transfer_3eqn.child.i
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [T_to_child]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = thm
    source_variable = T
    variable = T_wall
  []
[]

[Outputs]
  exodus = true
[]

(examples/ex08_materials/ex08.i)

[Mesh]
  file = reactor.e
  # Let's assign human friendly names to the blocks on the fly
  block_id = '1 2'
  block_name = 'fuel deflector'

  boundary_id = '4 5'
  boundary_name = 'bottom top'
[]

[Variables]
  [./diffused]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.5 # shortcut/convenience for setting constant initial condition
  [../]

  [./convected]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0 # shortcut/convenience for setting constant initial condition
  [../]
[]

[Kernels]
  # This Kernel consumes a real-gradient material property from the active material
  [./convection]
    type = ExampleConvection
    variable = convected
  [../]

  [./diff_convected]
    type = Diffusion
    variable = convected
  [../]

  [./example_diff]
    # This Kernel uses "diffusivity" from the active material
    type = ExampleDiffusion
    variable = diffused
  [../]

  [./time_deriv_diffused]
    type = TimeDerivative
    variable = diffused
  [../]

  [./time_deriv_convected]
    type = TimeDerivative
    variable = convected
  [../]
[]

[BCs]
  [./bottom_diffused]
    type = DirichletBC
    variable = diffused
    boundary = 'bottom'
    value = 0
  [../]

  [./top_diffused]
    type = DirichletBC
    variable = diffused
    boundary = 'top'
    value = 5
  [../]

  [./bottom_convected]
    type = DirichletBC
    variable = convected
    boundary = 'bottom'
    value = 0
  [../]

  [./top_convected]
    type = NeumannBC
    variable = convected
    boundary = 'top'
    value = 1
  [../]
[]

[Materials]
  [./example]
    type = ExampleMaterial
    block = 'fuel'
    diffusion_gradient = 'diffused'

    # Approximate Parabolic Diffusivity
    independent_vals = '0 0.25 0.5 0.75 1.0'
    dependent_vals = '1e-2 5e-3 1e-3 5e-3 1e-2'
  [../]

  [./example1]
    type = ExampleMaterial
    block = 'deflector'
    diffusion_gradient = 'diffused'

    # Constant Diffusivity
    independent_vals = '0 1.0'
    dependent_vals = '1e-1 1e-1'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  dt = 0.1
  num_steps = 10
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(examples/ex09_stateful_materials/ex09.i)

[Mesh]
  file = square.e
  uniform_refine = 4
[]

[Variables]
  [./convected]
    order = FIRST
    family = LAGRANGE
  [../]

  [./diffused]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./convected_ie]
    type = TimeDerivative
    variable = convected
  [../]

  [./example_diff]
    # This Kernel uses "diffusivity" from the active material
    type = ExampleDiffusion
    variable = convected
  [../]

  [./conv]
    type = ExampleConvection
    variable = convected
    some_variable = diffused
  [../]

  [./diffused_ie]
    type = TimeDerivative
    variable = diffused
  [../]

  [./diff]
    type = Diffusion
    variable = diffused
  [../]
[]

[BCs]
  [./left_convected]
    type = DirichletBC
    variable = convected
    boundary = 'left'
    value = 0
  [../]

  [./right_convected]
    type = DirichletBC
    variable = convected
    boundary = 'right'
    value = 1
  [../]

  [./left_diffused]
    type = DirichletBC
    variable = diffused
    boundary = 'left'
    value = 0
  [../]

  [./right_diffused]
    type = DirichletBC
    variable = diffused
    boundary = 'right'
    value = 1
  [../]

[]

[Materials]
  [./example_material]
    type = ExampleMaterial
    block = 1
    initial_diffusivity = 0.05
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  num_steps = 10
  dt = 1.0
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/multiapps/positions_from_file/dt_from_multi.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1 # This will be constrained by the multiapp

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    positions_file = positions.txt
    type = TransientMultiApp
    input_files = 'dt_from_multi_sub.i'
    app_type = MooseTestApp
  [../]
[]

(modules/porous_flow/test/tests/basic_advection/except2.i)

# PorousFlowDarcyVelocityMaterial attempts to have at_nodes = true
[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 100
  xmin = 0
  xmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [P]
  []
[]

[ICs]
  [P]
    type = FunctionIC
    variable = P
    function = '2*(1-x)'
  []
  [u]
    type = FunctionIC
    variable = u
    function = 'if(x<0.1,1,0)'
  []
[]

[Kernels]
  [u_dot]
    type = TimeDerivative
    variable = u
  []
  [u_advection]
    type = PorousFlowBasicAdvection
    variable = u
    phase = 1
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = ''
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    density0 = 4
    thermal_expansion = 0
    viscosity = 150.0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = P
    capillary_pressure = pc
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '5 0 0 0 5 0 0 0 5'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 0
    phase = 0
  []
  [darcy_velocity]
    type = PorousFlowDarcyVelocityMaterial
    gravity = '0.25 0 0'
    at_nodes = true
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = 1
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = 0
    variable = u
  []
[]

[Preconditioning]
  [basic]
    type = SMP
    full = true
    petsc_options_iname = '-pc_type -snes_rtol'
    petsc_options_value = ' lu       1E-10'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 5
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
[]

(modules/combined/test/tests/elastic_patch/elastic_patch_plane_strain.i)

#
# This problem is taken from the Abaqus verification manual:
#   "1.5.1 Membrane patch test"
# The stress solution is given as:
#   xx = yy = 1600
#   zz = 800
#   xy = 400
#   yz = zx = 0
#
# Since the strain is 1e-3 in both directions, the new density should be
#   new_density = original_density * V_0 / V
#   new_density = 0.283 / (1 + 1e-3 + 1e-3) = 0.282435

[GlobalParams]
  displacements = 'disp_x disp_y'
  temperature = temp
[]

[Mesh]
  file = elastic_patch_rz.e
[]

[Variables]
  [temp]
    initial_condition = 117.56
  []
[]

[Physics/SolidMechanics/QuasiStatic/All]
  strain = SMALL
  incremental = true
  planar_formulation = PLANE_STRAIN
  add_variables = true
  generate_output = 'stress_xx stress_yy stress_zz stress_xy stress_yz stress_zx'
[]

[Kernels]
  [heat]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [ur]
    type = FunctionDirichletBC
    variable = disp_x
    boundary = 10
    function = '1e-3*(x+0.5*y)'
  []
  [uz]
    type = FunctionDirichletBC
    variable = disp_y
    boundary = 10
    function = '1e-3*(y+0.5*x)'
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 1e6
    poissons_ratio = 0.25
  []
  [stress]
    type = ComputeStrainIncrementBasedStress
  []

  [density]
    type = Density
    density = 0.283
    outputs = all
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  end_time = 1.0
[]

[Outputs]
  exodus = true
[]

(test/tests/postprocessors/old_vpp_value/old_vpp_value.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[VectorPostprocessors]
  [./point_sample]
    type = PointValueSampler
    variable = 'u'
    points = '0.1 0.1 0'
    sort_by = x

    outputs = none
  [../]
[]

[Postprocessors]
  [./old_vpp_value]
    type = UseOldVectorPostprocessor
    vpp = point_sample
    vector_name = u
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/sub_cycling_failure/failure_with_max_procs_set.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp_ew'
  petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
  petsc_options_value = ' lu       superlu_dist                '
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '0 0 0'
    input_files = sub.i
    sub_cycling = true
    max_procs_per_app = 1
  [../]
[]

(modules/phase_field/test/tests/Nucleation/timestep.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  nz = 0
  xmin = 0
  xmax = 20
  ymin = 0
  ymax = 20
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    boundary = left
    variable = c
    value = 0
  [../]
  [./right]
    type = DirichletBC
    boundary = right
    variable = c
    value = 1
  [../]
  [./Periodic]
    [./all]
      auto_direction = y
    [../]
  [../]
[]

[Kernels]
  [./c]
    type = Diffusion
    variable = c
  [../]
  [./dt]
    type = TimeDerivative
    variable = c
  [../]
[]

[UserObjects]
  [./inserter]
    type = DiscreteNucleationInserter
    hold_time = 1
    probability = 0.0005
    radius = 3.27
  [../]
  [./map]
    type = DiscreteNucleationMap
    periodic = c
    inserter = inserter
  [../]
[]

[Postprocessors]
  [./dt]
    type = TimestepSize
  [../]
  [./dtnuc]
    type = DiscreteNucleationTimeStep
    inserter = inserter
    p2nucleus = 0.1
    dt_max = 0.5
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  num_steps = 20

  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 8
    iteration_window = 2
    timestep_limiting_postprocessor = dtnuc
    dt = 1
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  csv = true
[]

(test/tests/userobjects/toggle_mesh_adaptivity/toggle_mesh_adaptivity_gaussian_ic.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
[]

[Variables]
  [./u]
  [../]
[]

[ICs]
  [./gaussian_ic]
    type = FunctionIC
    variable = u
    function = gaussian_2d
  [../]
[]

[Functions]
  [./gaussian_2d]
    type = ParsedFunction
    expression = exp(-((x-x0)*(x-x0)+(y-y0)*(y-y0))/2.0/sigma/sigma)
    symbol_names = 'sigma x0 y0'
    symbol_values = '0.05 0.35 0.25'
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.02
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = u
      auto_direction = 'x y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  initial_steps = 1
  initial_marker = marker
  cycles_per_step = 1
  marker = marker
  max_h_level = 2
  [./Markers]
    [./marker]
      type = CircleMarker
      point = '0.35 0.25 0'
      radius = 0.2
      inside = refine
      outside = coarsen
    [../]
  [../]
[]

[UserObjects]
  [./mesh_adaptivity_off]
    type = ToggleMeshAdaptivity
    mesh_adaptivity = 'off'
  [../]
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    print_mesh_changed_info = true
  [../]
[]

(modules/solid_mechanics/test/tests/power_law_creep/ad_power_law_creep.i)

# 1x1x1 unit cube with uniform pressure on top face

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
[]

[Variables]
  [temp]
    initial_condition = 1000.0
  []
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = FINITE
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
    use_automatic_differentiation = true
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = ADPressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
  []
  [u_bottom_fix]
    type = ADDirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = ADDirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = ADDirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ADComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
    constant_on = SUBDOMAIN
  []
  [radial_return_stress]
    type = ADComputeMultipleInelasticStress
    inelastic_models = 'power_law_creep'
  []
  [power_law_creep]
    type = ADPowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.0
  end_time = 1.0
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/newmark-beta/newmark_beta_inactive_steps.i)

###########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of the TimeIntegrator system.
#
# Testing that the active_time parameter works as intended.
#
###########################################################

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 1
  ny = 1
[]

[Variables]
  [u]
  []
[]

[Functions]
  [forcing_fn]
    type = PiecewiseLinear
    x = '0.0 0.1 0.6'
    y = '0.0 1.0 1.0'
  []
[]

[Kernels]
  [ie]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = 'left'
    value = 0
  []
  [right]
    type = FunctionDirichletBC
    variable = u
    boundary = 'right'
    function = forcing_fn
  []
[]

[Executioner]
  type = Transient
  start_time = 0.0
  num_steps = 6
  dt = 0.1
  [TimeIntegrator]
    type = NewmarkBeta
    inactive_tsteps = 1
  []
[]

[Postprocessors]
  [udot]
    type = ElementAverageTimeDerivative
    variable = u
  []
  [udotdot]
    type = ElementAverageSecondTimeDerivative
    variable = u
  []
  [u]
    type = ElementAverageValue
    variable = u
  []
[]

[Outputs]
  csv = true
[]

(tutorials/tutorial02_multiapps/step03_coupling/03_parent_subcycling_picard.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [vt]
  []
[]

[Kernels]
  [diff]
    type = MatDiffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Materials]
  [diff]
    type = ParsedMaterial
    property_name = D
    coupled_variables = 'vt'
    expression = 'vt'
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  fixed_point_max_its = 10

  nl_abs_tol = 1e-10
  fixed_point_rel_tol = 1e-6
  fixed_point_abs_tol = 1e-10

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [micro]
    type = TransientMultiApp
    positions = '0.15 0.15 0  0.45 0.45 0  0.75 0.75 0'
    input_files = '03_sub_subcycling_picard.i'
    execute_on = timestep_end
    output_in_position = true
    sub_cycling = true
  []
[]

[Transfers]
  [push_u]
    type = MultiAppVariableValueSampleTransfer
    to_multi_app = micro
    source_variable = u
    variable = ut
  []

  [pull_v]
    type = MultiAppPostprocessorInterpolationTransfer
    from_multi_app = micro
    variable = vt
    postprocessor = average_v
  []
[]

(test/tests/userobjects/Terminator/terminator_pass.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 30
  ny = 6
  xmin = -15.0
  xmax = 15.0
  ymin = -3.0
  ymax = 3.0
  elem_type = QUAD4
[]

[Variables]
  [c]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1
  []
[]

[Postprocessors]
  [dt]
    type = TimestepSize
  []
[]

[UserObjects]
  [arnold]
    type = Terminator
    expression = 'dt > 20'
    fail_mode = HARD
    error_level = INFO
    message = 'Arnold says this should end'
    execute_on = TIMESTEP_END
  []
[]

[Kernels]
  [cres]
    type = Diffusion
    variable = c
  []

  [time]
    type = TimeDerivative
    variable = c
  []
[]

[BCs]
  [c]
    type = DirichletBC
    variable = c
    boundary = left
    value = 0
  []
[]

[Executioner]
  type = Transient
  [TimeStepper]
    type = IterationAdaptiveDT
    dt = 4
  []
  nl_abs_step_tol = 1e-10
[]

[Outputs]
  csv = true
  print_linear_residuals = false
[]

(modules/phase_field/test/tests/phase_field_kernels/SimpleCHInterface.i)

#
# Test the non-split parsed function free enery Cahn-Hilliard kernel
# The free energy used here has the same functional form as the CHPoly kernel
# If everything works, the output of this test should replicate the output
# of marmot/tests/chpoly_test/CHPoly_test.i (exodiff match)
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 16
  ny = 16
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./cv]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./InitialCondition]
    type = CrossIC
    x1 = 5.0
    y1 = 5.0
    x2 = 45.0
    y2 = 45.0
    variable = cv
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = cv
  [../]
  [./CHSolid]
    type = CahnHilliard
    variable = cv
    f_name = F
    mob_name = M
  [../]
  [./CHInterface]
    type = SimpleCHInterface
    variable = cv
    mob_name = M
    kappa_name = kappa_c
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1 0.1'
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'cv'
    expression = '(1-cv)^2 * (1+cv)^2'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 15
  l_tol = 1.0e-4
  nl_max_its = 10
  nl_rel_tol = 1.0e-11

  start_time = 0.0
  num_steps = 2
  dt = 0.7
[]

[Outputs]
  [./out]
    type = Exodus
    refinements = 1
  [../]
[]

(test/tests/postprocessors/internal_side_jump/internal_side_jump.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 4
    ny = 4
  []
  [./box]
    input = gen
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0 0 0'
    top_right = '0.5 0.5 0'
    block_id = 1
  [../]
[]

[Variables]
  [./u]
    family = L2_LAGRANGE
    order = FIRST
  [../]
[]

[ICs]
  [./ic0]
    type = ConstantIC
    variable = u
    block = 0
    value = 4
  [../]
  [./ic1]
    type = ConstantIC
    variable = u
    block = 1
    value = 6
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[DGKernels]
  [./dgdiff]
    type = DGDiffusion
    variable = u
    sigma = 4
    epsilon = 1
  [../]
[]

[BCs]
  [./all]
    type = VacuumBC
    variable = u
    boundary = '0 1 2 3'
  [../]
[]

[Postprocessors]
  [./L2_norm]
    type = ElementL2Norm
    variable = u
  [../]
  [./jump]
    type = InternalSideJump
    variable = u
    execute_on = 'initial timestep_end'
  [../]
  [./jumpold]
    type = InternalSideJump
    variable = u
    implicit = false
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 3
  nl_abs_tol = 1e-12
[]

[Outputs]
  csv = true
[]

(test/tests/time_integrators/newmark-beta/newmark_beta_default_parameters.i)

###########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of the TimeIntegrator system.
#
# Testing that the first and second time derivatives
# are calculated correctly using the Newmark-Beta method
#
# @Requirement F1.30
###########################################################

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 1
  ny = 1
[]

[Variables]
  [./u]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = PiecewiseLinear
    x = '0.0 0.1 0.2    0.3  0.4    0.5  0.6'
    y = '0.0 0.0 0.0025 0.01 0.0175 0.02 0.02'
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = FunctionDirichletBC
    variable = u
    preset = false
    boundary = 'left'
    function = forcing_fn
  [../]
  [./right]
    type = FunctionDirichletBC
    variable = u
    preset = false
    boundary = 'right'
    function = forcing_fn
  [../]
[]

[Executioner]
  type = Transient

  # Time integrator scheme
  scheme = "newmark-beta"

  start_time = 0.0
  num_steps = 6
  dt = 0.1
[]

[Postprocessors]
  [./udot]
    type = ElementAverageTimeDerivative
    variable = u
  [../]
  [./udotdot]
    type = ElementAverageSecondTimeDerivative
    variable = u
  [../]
  [./u]
    type = ElementAverageValue
    variable = u
  [../]
[]

[Outputs]
  csv = true
[]

(test/tests/postprocessors/element_integral_var_pps/pps_old_value.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 4
  ny = 4
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1
  [../]
[]

[Functions]
  [./force_fn]
    type = ParsedFunction
    expression = '1'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = 't'
  [../]
[]

[Kernels]
  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]
[]

[BCs]
  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./a]
    type = ElementIntegralVariablePostprocessor
    variable = u
    execute_on = 'initial timestep_end'
  [../]

  [./total_a]
    type = TimeIntegratedPostprocessor
    value = a
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 1
  start_time = 1
  end_time = 3
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(modules/phase_field/test/tests/MultiPhase/crosstermfreeenergy.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
  nz = 0
  xmin = -8
  xmax = 8
  ymin = -8
  ymax = 8
  elem_type = QUAD4
[]

[AuxVariables]
  [./local_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./cross_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./local_free_energy]
    type = TotalFreeEnergy
    f_name = F0
    variable = local_energy
    additional_free_energy = cross_energy
  [../]
  [./cross_terms]
    type = CrossTermGradientFreeEnergy
    variable = cross_energy
    interfacial_vars = 'eta1 eta2 eta3'
    kappa_names = 'kappa11 kappa12 kappa13
                   kappa21 kappa22 kappa23
                   kappa31 kappa32 kappa33'
  [../]
[]

[Variables]
  [./eta1]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 0.0
      y1 = 5.0
      radius = 5.0
      invalue = 1.0
      outvalue = 0.0
      int_width = 10.0
    [../]
  [../]
  [./eta2]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = -4.0
      y1 = -2.0
      radius = 5.0
      invalue = 1.0
      outvalue = 0.0
      int_width = 10.0
    [../]
  [../]
  [./eta3]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 4.0
      y1 = -2.0
      radius = 5.0
      invalue = 1.0
      outvalue = 0.0
      int_width = 10.0
    [../]
  [../]
[]

[Kernels]
  [./dummy_diff1]
    type = Diffusion
    variable = eta1
  [../]
  [./dummy_time1]
    type = TimeDerivative
    variable = eta1
  [../]
  [./dummy_diff2]
    type = Diffusion
    variable = eta2
  [../]
  [./dummy_time2]
    type = TimeDerivative
    variable = eta2
  [../]
  [./dummy_diff3]
    type = Diffusion
    variable = eta3
  [../]
  [./dummy_tim3]
    type = TimeDerivative
    variable = eta3
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'F0   kappa11 kappa12 kappa13 kappa21 kappa22 kappa23 kappa31 kappa32 kappa33'
    prop_values = '0    11      12      13      12      22      23      13      23      33     '
  [../]

[]

[Executioner]
  type = Transient
  dt = 0.001
  num_steps = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  [./out]
    type = Exodus
    hide = 'eta1 eta2 eta3 local_energy'
  [../]
[]

(test/tests/transfers/multiapp_reporter_transfer/between_multiapp/main.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.01
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  nl_rel_tol = 1e-12
[]

[MultiApps]
  [pp_sub_0]
    app_type = MooseTestApp
    positions = '0.5 0.5 0 0.7 0.7 0'
    execute_on = timestep_end
    type = TransientMultiApp
    input_files = sub0.i
  []
  [pp_sub_1]
    app_type = MooseTestApp
    positions = '0.5 0.5 0 0.7 0.7 0'
    execute_on = timestep_end
    type = TransientMultiApp
    input_files = sub1.i
  []
[]

[Transfers]
  [pp_transfer_1]
    type = MultiAppReporterTransfer
    from_multi_app = pp_sub_0
    to_multi_app = pp_sub_1
    from_reporters = 'base_sub0_vpp/a base_sub0_vpp/b'
    to_reporters = 'from_sub0_vpp/a from_sub0_vpp/b'
  []
  [pp_transfer_2]
    type = MultiAppReporterTransfer
    from_multi_app = pp_sub_1
    to_multi_app = pp_sub_0
    from_reporters = 'base_sub1_vpp/a base_sub1_vpp/b'
    to_reporters = 'from_sub1_vpp/a from_sub1_vpp/b'
  []
[]

(test/tests/time_steppers/iteration_adaptive/adapt_tstep_reject_large_dt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmax = 5
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Functions]
  [./timestep_fn]
    type = PiecewiseConstant
    x = '0.   10.0'
    y = '10.0 1.0'
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./dt]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 10
  [../]
  [./right]
    type = NeumannBC
    variable = u
    boundary = right
    value = -1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  start_time = 0.0
  end_time = 12.0
  dtmax = 10.0
  dtmin = 0.1
  [./TimeStepper]
    type = IterationAdaptiveDT
    timestep_limiting_postprocessor = timestep_pp
    reject_large_step = true
    reject_large_step_threshold = 0.5
    dt = 3.0
    growth_factor = 1.0
  [../]
[]

[Postprocessors]
  [./_dt]
    type = TimestepSize
  [../]

# Just use a simple postprocessor to test capability to limit the time step length to the postprocessor value
  [./timestep_pp]
    type = FunctionValuePostprocessor
    function = timestep_fn
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
  checkpoint = true
[]

(test/tests/time_integrators/dirk/dirk-2d-heat.i)

#
# Testing a solution that is second order in space and first order in time.
#

[Mesh]
  type = GeneratedMesh
  dim  = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx   = 20
  ny   = 20
  elem_type = QUAD9
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = exact_fn
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    expression = ((x*x)+(y*y))-(4*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  start_time = 0.0
  end_time   = 1.0
  dt         = 1.0
  nl_abs_tol=1e-13
  nl_rel_tol=1e-13

  [./TimeIntegrator]
    type = LStableDirk2
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus         = true
[]

(examples/ex21_debugging/ex21.i)

[Mesh]
  file = reactor.e
  #Let's assign human friendly names to the blocks on the fly
  block_id = '1 2'
  block_name = 'fuel deflector'

  boundary_id = '4 5'
  boundary_name = 'bottom top'
[]

[Variables]
  #Use active lists to help debug problems. Switching on and off
  #different Kernels or Variables is extremely useful!
  active = 'diffused convected'
  [diffused]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.5
  []

  [convected]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  []
[]

[Kernels]
  #This Kernel consumes a real-gradient material property from the active material
  active = 'convection diff_convected example_diff time_deriv_diffused time_deriv_convected'
  [convection]
    type = ExampleConvection
    variable = convected
  []

  [diff_convected]
    type = Diffusion
    variable = convected
  []

  [example_diff]
    type = ExampleDiffusion
    variable = diffused
    coupled_coef = convected
  []

  [time_deriv_diffused]
    type = TimeDerivative
    variable = diffused
  []

  [time_deriv_convected]
    type = TimeDerivative
    variable = convected
  []
[]

[BCs]
  [bottom_diffused]
    type = DirichletBC
    variable = diffused
    boundary = 'bottom'
    value = 0
  []

  [top_diffused]
    type = DirichletBC
    variable = diffused
    boundary = 'top'
    value = 5
  []

  [bottom_convected]
    type = DirichletBC
    variable = convected
    boundary = 'bottom'
    value = 0
  []

  [top_convected]
    type = NeumannBC
    variable = convected
    boundary = 'top'
    value = 1
  []
[]

[Materials]
  [example]
    type = ExampleMaterial
    block = 'fuel'
    diffusion_gradient = 'diffused'

    #Approximate Parabolic Diffusivity
    independent_vals = '0 0.25 0.5 0.75 1.0'
    dependent_vals = '1e-2 5e-3 1e-3 5e-3 1e-2'
  []

  [example1]
    type = ExampleMaterial
    block = 'deflector'
    diffusion_gradient = 'diffused'

    # Constant Diffusivity
    independent_vals = '0 1.0'
    dependent_vals = '1e-1 1e-1'
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  dt = 0.1
  num_steps = 10
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(modules/stochastic_tools/test/tests/samplers/ParallelSubsetSimulation/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [average]
    type = ElementAverageValue
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

(modules/stochastic_tools/test/tests/transfers/sampler_transfer_vector/sub.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 10
  []

  # Give the far left element a block so that we can
  # grab its value
  [left_elem_block]
    type = ParsedSubdomainMeshGenerator
    input = gmg
    combinatorial_geometry = 'x < 0.1'
    block_id = 1
  []
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [prop_a]
    family = MONOMIAL
    order = CONSTANT
  []
  [prop_b]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [prop_a]
    type = MaterialRealAux
    variable = prop_a
    property = prop_a
  []
  [prop_b]
    type = MaterialRealAux
    variable = prop_b
    property = prop_b
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Materials]
  [mat]
    type = GenericConstantMaterial
    prop_names = 'prop_a prop_b'
    prop_values = '100    200'
  []
  [mat2]
    type = GenericConstantMaterial
    prop_names = 'prop_c prop_d prop_e'
    prop_values = '300    400    500'
  []
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

[Postprocessors]
  [left_bc]
    type = PointValue
    point = '0 0 0'
    variable = u
  []
  [right_bc]
    type = PointValue
    point = '1 0 0'
    variable = u
  []
  [prop_a]
    type = ElementAverageValue
    variable = prop_a
    block = 1
  []
  [prop_b]
    type = ElementAverageValue
    variable = prop_b
    block = 1
  []
[]

[Outputs]
  csv = true
[]

(modules/combined/test/tests/CHSplitFlux/simple_transient_diffusion_flux.i)

# Same problem as in moose/test/tests/kernels/simple_transient_diffusion

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./c]
  [../]
  [./mu]
  [../]
  [./jx]
  [../]
  [./jy]
  [../]
[]

[Kernels]
  [./conc]
    type = CHSplitConcentration
    variable = c
    mobility = mobility_prop
    chemical_potential_var = mu
  [../]
  [./chempot]
    type = CHSplitChemicalPotential
    variable = mu
    chemical_potential_prop = mu_prop
    c = c
  [../]
  [./flux_x]
    type = CHSplitFlux
    variable = jx
    component = 0
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./flux_y]
    type = CHSplitFlux
    variable = jy
    component = 1
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./chemical_potential]
    type = DerivativeParsedMaterial
    block = 0
    property_name = mu_prop
    coupled_variables = c
    expression = 'c'
    derivative_order = 1
  [../]
  [./var_dependence]
    type = DerivativeParsedMaterial
    block = 0
    expression = '0.1'
    coupled_variables = c
    property_name = var_dep
    derivative_order = 1
  [../]
  [./mobility_tensor]
    type = ConstantAnisotropicMobility
    block = 0
    M_name = mobility_tensor
    tensor = '1 0 0 0 1 0 0 0 1'
  [../]
  [./mobility]
    type = CompositeMobilityTensor
    block = 0
    M_name = mobility_prop
    tensors = mobility_tensor
    weights = var_dep
    args = c
  [../]
[]

[BCs]
  [./leftc]
    type = DirichletBC
    variable = c
    boundary = left
    value = 0
  [../]
  [./rightc]
    type = DirichletBC
    variable = c
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK

  petsc_options_iname = '-pc_type -ksp_grmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  preonly       lu           1'

  nl_max_its = 5
  dt = 0.1
  num_steps = 20
[]

[Preconditioning]
  [./smp]
     type = SMP
     full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/03_parent_subcycle.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1.

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = '03_sub_subcycle.i'
    sub_cycling = true
#    output_sub_cycles = true
  []
[]

(test/tests/parser/cli_multiapp_all/dt_from_parent_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1 # This will be constrained by the parent solve

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/postprocessors/nodal_var_value/nodal_var_value.i)

[Mesh]
  file = square-2x2-nodeids.e
  # NodalVariableValue is not safe on renumbered meshes
  allow_renumbering = false
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '1'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '2'
    value = 0
  [../]
[]

[Postprocessors]
  active = 'l2 scalednode1 node1 node4'

  [./l2]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./node1]
    type = NodalVariableValue
    variable = u
    nodeid = 15
  [../]

  [./scalednode1]
    type = NodalVariableValue
    variable = u
    nodeid = 15
    scale_factor = 2
  [../]

  [./node4]
    type = NodalVariableValue
    variable = v
    nodeid = 10
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_nodal_var_value
  exodus = true
[]

(python/peacock/tests/common/spherical_average.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 10
  ny = 10
  nz = 10
  xmin = -5
  xmax = 5
  ymin = -5
  ymax = 5
  zmin = -5
  zmax = 5
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = FunctionIC
      function = sin(x*7.4+z*4.1)+cos(y*3.8+x*8.7)+sin(z*9.1+y*2.6)
    [../]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[VectorPostprocessors]
  [./average]
    type = SphericalAverage
    variable = c
    radius = 5
    bin_number = 10
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1
  solve_type = PJFNK
[]

[Outputs]
  execute_on = 'initial timestep_end'
  exodus = true
  csv = true
[]

(modules/phase_field/test/tests/rigidbodymotion/grain_forcedensity.i)

# test file for showing reaction forces between particles
[GlobalParams]
  var_name_base = eta
  op_num = 2
[]

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 5
  nz = 0
  xmax = 50
  ymax = 25
  zmax = 0
  elem_type = QUAD4
  uniform_refine = 1
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]
  [./eta0]
  [../]
  [./eta1]
  [../]
[]

[Kernels]
  [./c_res]
    type = SplitCHParsed
    variable = c
    f_name = F
    kappa_name = kappa_c
    coupled_variables = 'eta0 eta1'
    w = w
  [../]
  [./w_res]
    type = SplitCHWRes
    variable = w
    mob_name = M
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./motion]
    type = MultiGrainRigidBodyMotion
    variable = w
    c = c
    v = 'eta0 eta1'
    grain_force = grain_force
    grain_tracker_object = grain_center
    grain_volumes = grain_volumes
  [../]
  [./eta0_dot]
    type = TimeDerivative
    variable = eta0
  [../]
  [./vadv_eta]
    type = SingleGrainRigidBodyMotion
    variable = eta0
    c = c
    v = 'eta0 eta1'
    grain_force = grain_force
    grain_tracker_object = grain_center
    grain_volumes = grain_volumes
    op_index = 0
  [../]
  [./acint_eta0]
    type = ACInterface
    variable = eta0
    mob_name = M
    #coupled_variables = c
    kappa_name = kappa_eta
  [../]
  [./acbulk_eta0]
    type = AllenCahn
    variable = eta0
    mob_name = M
    f_name = F
    coupled_variables = 'c eta1'
  [../]
  [./eta1_dot]
    type = TimeDerivative
    variable = eta1
  [../]
  [./vadv_eta1]
    type = SingleGrainRigidBodyMotion
    variable = eta1
    c = c
    v = 'eta0 eta1'
    op_index = 1
    grain_force = grain_force
    grain_tracker_object = grain_center
    grain_volumes = grain_volumes
  [../]
  [./acint_eta1]
    type = ACInterface
    variable = eta1
    mob_name = M
    #coupled_variables = c
    kappa_name = kappa_eta
  [../]
  [./acbulk_eta1]
    type = AllenCahn
    variable = eta1
    mob_name = M
    f_name = F
    coupled_variables = 'c eta0'
  [../]
[]

[Materials]
  [./pfmobility]
    type = GenericConstantMaterial
    prop_names = 'M    kappa_c  kappa_eta'
    prop_values = '1.0  0.5      0.5'
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'c eta0 eta1'
    constant_names = 'barr_height  cv_eq'
    constant_expressions = '0.1          1.0e-2'
    expression = 16*barr_height*(c-cv_eq)^2*(1-cv_eq-c)^2+eta0*(1-eta0)*c+eta1*(1-eta1)*c
    derivative_order = 2
  [../]
  [./force_density]
    type = ForceDensityMaterial
    c = c
    etas ='eta0 eta1'
  [../]
[]

[AuxVariables]
  [./bnds]
  [../]
  [./df00]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./df01]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./df10]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./df11]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./unique_grains]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./var_indices]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./centroids]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./bnds]
    type = BndsCalcAux
    variable = bnds
    var_name_base = eta
    op_num = 2
    v = 'eta0 eta1'
  [../]
  [./df01]
    type = MaterialStdVectorRealGradientAux
    variable = df01
    index = 0
    component = 1
    property = force_density
  [../]
  [./df11]
    type = MaterialStdVectorRealGradientAux
    variable = df11
    index = 1
    component = 1
    property = force_density
  [../]
  [./df00]
    type = MaterialStdVectorRealGradientAux
    variable = df00
    index = 0
    component = 0
    property = force_density
  [../]
  [./df10]
    type = MaterialStdVectorRealGradientAux
    variable = df10
    index = 1
    component = 0
    property = force_density
  [../]
  [./unique_grains]
    type = FeatureFloodCountAux
    variable = unique_grains
    flood_counter = grain_center
    field_display = UNIQUE_REGION
    execute_on = timestep_begin
  [../]
  [./var_indices]
    type = FeatureFloodCountAux
    variable = var_indices
    flood_counter = grain_center
    field_display = VARIABLE_COLORING
    execute_on = timestep_begin
  [../]
  [./centroids]
    type = FeatureFloodCountAux
    variable = centroids
    execute_on = timestep_begin
    field_display = CENTROID
    flood_counter = grain_center
  [../]
[]

[ICs]
  [./ic_eta0]
    int_width = 1.0
    x1 = 20.0
    y1 = 0.0
    radius = 14.0
    outvalue = 0.0
    variable = eta0
    invalue = 1.0
    type = SmoothCircleIC
  [../]
  [./IC_eta1]
    int_width = 1.0
    x1 = 30.0
    y1 = 25.0
    radius = 14.0
    outvalue = 0.0
    variable = eta1
    invalue = 1.0
    type = SmoothCircleIC
  [../]
  [./ic_c]
    type = SpecifiedSmoothCircleIC
    invalue = 1.0
    outvalue = 0.1
    int_width = 1.0
    x_positions = '20.0 30.0 '
    z_positions = '0.0 0.0 '
    y_positions = '0.0 25.0 '
    radii = '14.0 14.0'
    3D_spheres = false
    variable = c
    block = 0
  [../]
[]

[VectorPostprocessors]
  [./forces]
    type = GrainForcesPostprocessor
    grain_force = grain_force
  [../]
  [./grain_volumes]
    type = FeatureVolumeVectorPostprocessor
    flood_counter = grain_center
    execute_on = 'initial timestep_begin'
  [../]
[]

[UserObjects]
  [./grain_center]
    type = GrainTracker
    outputs = none
    compute_var_to_feature_map = true
    execute_on = 'initial timestep_begin'
  [../]
  [./grain_force]
    type = ComputeGrainForceAndTorque
    execute_on = 'linear nonlinear'
    grain_data = grain_center
    force_density = force_density
    c = c
    etas = 'eta0 eta1'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = NEWTON
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31   preonly   lu      1'
  l_max_its = 30
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  start_time = 0.0
  num_steps = 1
  dt = 0.1
[]

[Outputs]
  exodus = true
  csv = true
[]

(test/tests/transfers/multiapp_nearest_node_transfer/fromsub_fixed_meshes_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [from_sub]
  []
  [elemental_from_sub]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0.1 0.45 0'
    input_files = fromsub_fixed_meshes_sub.i
  []
[]

[Transfers]
  # Note: it's not generally advised to use "fixed_meshes = true" with displaced
  # meshes.  We only do that for this test to make sure the test will fail if
  # "fixed_meshes" isn't working properly.
  [from_sub]
    type = MultiAppNearestNodeTransfer
    from_multi_app = sub
    source_variable = u
    variable = from_sub
    fixed_meshes = true
    displaced_source_mesh = true
  []
  [elemental_from_sub]
    type = MultiAppNearestNodeTransfer
    from_multi_app = sub
    source_variable = u
    variable = elemental_from_sub
    fixed_meshes = true
    displaced_source_mesh = true
  []
[]

(test/tests/ics/from_exodus_solution/nodal_part1.i)

# We run a simple problem (5 time steps and save off the solution)
# In part2, we load the solution and solve a steady problem. The test check, that the initial state in part 2 is the same as the last state from part1

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = -4+(x*x+y*y)
  [../]
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'ie diff ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.2
  start_time = 0
  num_steps = 5
[]

[Outputs]
  file_base = out_nodal_part1
  exodus = true
  xda = true
[]

(test/tests/multiapps/full_solve_multiapp/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/tvdrk2/2d-quadratic.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
  elem_type = QUAD9
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 2*t*((x*x)+(y*y))-(4*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*((x*x)+(y*y))
  [../]
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[ICs]
  [./u_ic]
    type = FunctionIC
    variable = u
    function = ic
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  [./TimeIntegrator]
    type = ExplicitTVDRK2
  [../]
  solve_type = 'LINEAR'

  start_time = 0.0
  num_steps = 10
  dt = 0.0001
  l_tol = 1e-8
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(modules/functional_expansion_tools/test/tests/standard_use/interface_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0.4
  xmax = 2.4
  nx = 30
  ymin = 0.0
  ymax = 10.0
  ny = 20
[]

[Variables]
  [./s]
  [../]
[]

[Kernels]
  [./diff_s]
    type = Diffusion
    variable = s
  [../]
  [./time_diff_s]
    type = TimeDerivative
    variable = s
  [../]
[]

[ICs]
  [./start_s]
    type = ConstantIC
    value = 2
    variable = s
  [../]
[]

[BCs]
  [./bottom]
    type = DirichletBC
    variable = s
    boundary = bottom
    value = 0.1
  [../]
  [./interface_flux]
    type = FXFluxBC
    boundary = left
    variable = s
    function = FX_Basis_Flux_Sub
  [../]
[]

[Functions]
  [./FX_Basis_Value_Sub]
    type = FunctionSeries
    series_type = Cartesian
    orders = '4'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
  [./FX_Basis_Flux_Sub]
    type = FunctionSeries
    series_type = Cartesian
    orders = '5'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Sub]
    type = FXBoundaryValueUserObject
    function = FX_Basis_Value_Sub
    variable = s
    boundary = left
  [../]
  [./FX_Flux_UserObject_Sub]
    type = FXBoundaryFluxUserObject
    function = FX_Basis_Flux_Sub
    variable = s
    boundary = left
    diffusivity = 1.0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 1.0
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(test/tests/multiapps/picard/fully_coupled.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./v]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./force_u]
    type = CoupledForce
    variable = u
    v = v
  [../]
  [./force_v]
    type = CoupledForce
    variable = v
    v = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
  [./left_v]
    type = DirichletBC
    variable = v
    boundary = left
    value = 1
  [../]
  [./right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 8
  xmax = 0.1
  ymax = 0.5
  coord_type = rz
[]

[Variables]
  [u]
    initial_condition = 1
  []
[]

[AuxVariables]
  [layered_average_value]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Functions]
  [axial_force]
    type = ParsedFunction
    expression = 1000*y
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    function = axial_force
  []
[]

[AuxKernels]
  [layered_aux]
    type = SpatialUserObjectAux
    variable = layered_average_value
    execute_on = timestep_end
    user_object = layered_average
  []
[]

[BCs]
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[UserObjects]
  [layered_average]
    type = LayeredAverage
    variable = u
    direction = y
    num_layers = 4
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.001

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/kernels/block_kernel/block_kernel_test.i)

[Mesh]
  file = rectangle.e
  uniform_refine = 1
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1.0
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./body_force]
    type = BodyForce
    variable = u
    block = 1
    value = 10
    function = 'x+y'
  [../]

  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  dt = 0.1
  num_steps = 10
[]

[Outputs]
  file_base = out
  exodus = true
[]

(test/tests/kernels/ad_vector_couple/ad_grad_vector_couple.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
[]

[Variables]
  [u]
    family = LAGRANGE
    order = FIRST
  []
  [v]
    family = LAGRANGE_VEC
    order = FIRST
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = ADDiffusion
    variable = u
  []
  [convection]
    type = ADCoupledVectorConvection
    variable = u
    velocity_vector = v
    use_grad_row = true
  []
  [diff_v]
    type = ADVectorDiffusion
    variable = v
  []
[]

[BCs]
  [left]
    type = ADFunctionDirichletBC
    variable = u
    function = 1
    boundary = 'left'
  []
  [right]
    type = ADFunctionDirichletBC
    variable = u
    function = 2
    boundary = 'bottom'
  []

  [left_v]
    type = ADVectorFunctionDirichletBC
    variable = v
    function_x = 1
    function_y = 2
    boundary = 'left'
  []
  [right_v]
    type = ADVectorFunctionDirichletBC
    variable = v
    function_x = 4
    function_y = 8
    boundary = 'top'
  []
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  num_steps = 10
  dt = 0.05
[]

[Outputs]
  execute_on = TIMESTEP_END
  exodus = true
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/restricted_node_sub.i)

# yy is passed in from the parent app

[Mesh]
  [line]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 5
    xmax = 2.5
  []
  [box]
    type = SubdomainBoundingBoxGenerator
    input = line
    bottom_left = '0 -0.1 -0.1'
    top_right = '1.5 0.1 0.1'
    # need a different block ID than what is in the parent app to make sure the transfer works properly
    block_id = 20
  []
[]

[AuxVariables]
  [A]
  []

  [S]
  []
[]

[AuxKernels]
  [A_ak]
    type = ParsedAux
    variable = A
    use_xyzt = true
    expression = '2*x+4*${yy}'
    execute_on = 'TIMESTEP_BEGIN'
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[UserObjects]
  [A_avg]
    type = LayeredAverage
    block = 20
    num_layers = 2
    direction = x
    variable = A
    execute_on = TIMESTEP_END
  []
[]

[Executioner]
  type = Transient
[]

[Outputs]
  exodus = true
[]

(test/tests/controls/time_periods/transfers/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.01
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./average]
    type = ElementAverageValue
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  nl_rel_tol = 1e-12
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./pp_sub]
    app_type = MooseTestApp
    positions = '0.5 0.5 0 0.7 0.7 0'
    execute_on = timestep_end
    type = TransientMultiApp
    input_files = sub.i
  [../]
[]

[Transfers]
  [./pp_transfer]
    type = MultiAppPostprocessorToAuxScalarTransfer
    to_multi_app = pp_sub
    from_postprocessor = average
    to_aux_scalar = from_master_app
  [../]
[]

[Controls]
  [./transfers]
    type = TimePeriod
    enable_objects = Transfer::pp_transfer
    start_time = 2
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/dirackernels/multiplicity/multiplicity.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 2
  ny = 2
  elem_type = QUAD4
  uniform_refine = 2
[]

[Variables]
  [./u1]
  [../]
  [./u2]
  [../]
  [./u3]
  [../]
[]

[Kernels]
  [./diff1]
    type = Diffusion
    variable = u1
  [../]
  [./diff2]
    type = Diffusion
    variable = u2
  [../]
  [./diff3]
    type = Diffusion
    variable = u3
  [../]

  [./dt1]
    type = TimeDerivative
    variable = u1
  [../]
  [./dt2]
    type = TimeDerivative
    variable = u2
  [../]
  [./dt3]
    type = TimeDerivative
    variable = u3
  [../]
[]

[DiracKernels]
  [./material_source1]
    type = MaterialMultiPointSource
    variable = u1
    points = '0.2 0.3 0.0
              0.7 0.5 0.0'
  [../]
  [./material_source2]
    type = MaterialMultiPointSource
    variable = u2
    points = '0.2 0.3 0.0
              0.2 0.3 0.0'
  [../]
  [./material_source3]
    type = MaterialMultiPointSource
    variable = u3
    drop_duplicate_points = false
    points = '0.2 0.3 0.0
              0.2 0.3 0.0'
  [../]
[]

[Postprocessors]
  [./u1]
    type = ElementIntegralVariablePostprocessor
    variable = u1
  [../]
  [./u2]
    type = ElementIntegralVariablePostprocessor
    variable = u2
  [../]
  [./u3]
    type = ElementIntegralVariablePostprocessor
    variable = u3
  [../]
[]

[Materials]
  [./const]
    type = GenericConstantMaterial
    prop_names = matp
    prop_values = 1.0
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 1
[]

[Outputs]
  csv = true
  print_linear_residuals = false
[]

(test/tests/multiapps/sub_cycling_failure/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '0 0 0'
    input_files = sub.i
    sub_cycling = true
  [../]
[]

(modules/porous_flow/test/tests/functions/mpf1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dummy]
    type = TimeDerivative
    variable = u
  []
[]

[Functions]
  [dist]
    type = PiecewiseLinear
    x = '1 10'  # time
    y = '0 9'   # distance
  []
  [moving_planar_front]
    type = MovingPlanarFront
    start_posn = '1 1 0'
    end_posn = '2 2 0' # it does not matter that dist exceeds this
    active_length = 5
    activation_time = 1
    deactivation_time = 9
    distance = dist
  []
[]

[AuxVariables]
  [mpf]
  []
[]

[AuxKernels]
  [mpf]
    type = FunctionAux
    variable = mpf
    function = moving_planar_front
  []
[]

[Executioner]
  type = Transient
  dt = 0.5
  end_time = 10
[]

[Outputs]
  file_base = mpf1
  exodus = true
[]

(test/tests/transfers/multiapp_postprocessor_to_scalar/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./from_parent_app]
    order = FIRST
    family = SCALAR
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.01
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 2
  [../]
[]

[Postprocessors]
  [./from_parent]
    type = ScalarVariable
    variable = from_parent_app
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  num_steps = 1
  dt = 1
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  nl_rel_tol = 1e-12
[]

[Outputs]
  exodus = true
  hide = from_parent_app
[]

(tutorials/tutorial02_multiapps/step02_transfers/04_sub_multiscale.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [ut]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Postprocessors]
  [average_v]
    type = ElementAverageValue
    variable = v
  []
[]

(modules/phase_field/test/tests/free_energy_material/MathEBFreeEnergy.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 25
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c]
    type = SmoothCircleIC
    variable = c
    x1 = 25.0
    y1 = 25.0
    radius = 6.0
    invalue = 1.0
    outvalue = -0.8
    int_width = 4.0
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CahnHilliard
    variable = c
    mob_name = M
    f_name = F
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
  [../]
  [./free_energy]
    type = MathEBFreeEnergy
    property_name = F
    c = c
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-5
  nl_max_its = 40
  nl_rel_tol = 5.0e-14

  start_time = 0.0
  num_steps = 1
  dt = 2.0
[]

[Outputs]
  execute_on = 'timestep_end'
  [./oversample]
    type = Exodus
    refinements = 2
  [../]
[]

(test/tests/auxkernels/mesh_integer/dg_mesh_integer.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    xmin = 0
    xmax = 1
    ymin = 0
    ymax = 1
    nx = 5
    ny = 5
    extra_element_integers = 'material_id'
  []
  [set_material_id0]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    bottom_left = '0 0 0'
    top_right = '0.8 0.6 0'
    block_id = 0
    location = INSIDE
    integer_name = material_id
  []
  [set_material_id1]
    type = SubdomainBoundingBoxGenerator
    input = set_material_id0
    bottom_left = '0 0 0'
    top_right = '0.8 0.6 0'
    block_id = 1
    location = OUTSIDE
    integer_name = material_id
  []
[]

[Variables]
  [u]
    family = L2_LAGRANGE
    order = FIRST
  []
[]

[Kernels]
  [diff]
    type = MatDiffusion
    variable = u
    diffusivity = dc
  []
  [timederivative]
    type = TimeDerivative
    variable = u
  []
  [sourceterm]
    type = BodyForce
    variable = u
    function = 1
  []
[]

[DGKernels]
  [dg_diff]
    type = DGDiffusion
    variable = u
    diff = dc
    epsilon = -1
    sigma = 6
  []
[]

[AuxVariables]
  [id]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [id]
    type = ElementIntegerAux
    variable = id
    integer_names = material_id
  []
[]

[BCs]
  [vacuum]
    type = VacuumBC
    variable = u
    boundary = 'right left top bottom'
 []
[]

[Materials]
  [dc]
    type = ConstantIDMaterial
    prop_name = dc
    prop_values = '1 2'
    id_name = material_id
  []
[]

[Postprocessors]
  [unorm]
    type = ElementL2Norm
    variable = u
  []
[]

[Executioner]
  type = Transient

  end_time = 0.1
  dt = 0.01
  nl_abs_tol = 1.e-15
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/multiapps/picard_multilevel/fullsolve_multilevel/sub_level2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
[]

[Variables]
  [w]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [time_derivative]
    type = TimeDerivative
    variable = w
  []
  [diffusion]
    type = Diffusion
    variable = w
  []
  [source]
    type = CoupledForce
    variable = w
    v = v
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = w
    boundary = '0'
    value = 0
  []
[]

[Postprocessors]
  [avg_v]
    type = ElementAverageValue
    variable = v
    execute_on = 'initial linear'
  []
  [avg_w]
    type = ElementAverageValue
    variable = w
    execute_on = 'initial linear'
  []
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  end_time = 0.1
  dt = 0.02
  # steady_state_detection = true
[]


[Outputs]
  exodus = true
  # print_linear_residuals = false
[]

(modules/optimization/examples/simpleTransient/adjoint_mesh.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
    xmin = -1
    xmax = 1
    ymin = -1
    ymax = 1
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = u
    boundary = 'left right top bottom'
    value = 0
  []
[]

[Reporters]
  [measured_data]
    type = OptimizationData
    measurement_file = mms_data.csv
    file_xcoord = x
    file_ycoord = y
    file_zcoord = z
    file_time = t
    file_value = u
  []
  [src_values]
    type = ConstantReporter
    real_vector_names = 'time values'
    real_vector_values = '0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0;
                          0' # dummy
  []
[]

[DiracKernels]
  [misfit]
    type = ReporterTimePointSource
    variable = u
    value_name = measured_data/misfit_values
    x_coord_name = measured_data/measurement_xcoord
    y_coord_name = measured_data/measurement_ycoord
    z_coord_name = measured_data/measurement_zcoord
    time_name = measured_data/measurement_time
    reverse_time_end = 1
  []
[]

[Functions]
  [source]
    type = ParameterMeshFunction
    exodus_mesh = source_mesh_in.e
    time_name = src_values/time
    parameter_name = src_values/values
  []
[]

[VectorPostprocessors]
  [adjoint]
    type = ElementOptimizationSourceFunctionInnerProduct
    variable = u
    function = source
    reverse_time_end = 1
  []
[]

[Executioner]
  type = Transient

  num_steps = 100
  end_time = 1

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  console = false
[]

(test/tests/restart/new_dt/new_dt_restart.i)

[Mesh]
  file = new_dt_out_cp/0010-mesh.cpa.gz
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10

  # Here we are supplying a different dt
  dt = 0.25
  start_time = 1.0

  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [./exodus]
    type = Exodus
    execute_on = 'timestep_end final'
  [../]
[]

[Problem]
  restart_file_base = new_dt_out_cp/0010
[]

(test/tests/misc/check_error/missing_required_coupled.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 20
  ny = 10
  elem_type = QUAD9
[]

[Functions]
  [./bc_fn_v]
    type = ParsedFunction
    expression = (x*x+y*y)
  [../]
[]

[Variables]
  [./v]
    family = LAGRANGE
    order = SECOND
  [../]

  [./u]
    family = LAGRANGE
    order = SECOND
  [../]
[]

[Kernels]
  # V equation
  [./td_v]
    type = TimeDerivative
    variable = v
  [../]
  [./diff_v]
    type = CoefDiffusion
    variable = v
    coef = 0.5
  [../]
  [./conv_v]
    type = CoupledConvection
    variable = v
    # Coupled parameter is missing for CoupledConvection
  [../]
[]

[BCs]
  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = 'top'
    function = bc_fn_v
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0
  dt = 0.05
  num_steps = 10
[]

[Outputs]
  execute_on = 'timestep_end'
[]

(test/tests/materials/stateful_prop/stateful_prop_copy_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 10
  nx = 4
  ny = 4
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./prop1]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./prop1_output]
    type = MaterialRealAux
    variable = prop1
    property = thermal_conductivity
  [../]
[]

[Kernels]
  [./heat]
    type = MatDiffusionTest
    variable = u
    prop_name = thermal_conductivity
  [../]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./bottom]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0.0
  [../]
  [./top]
    type = MTBC
    variable = u
    boundary = 1
    grad = 1.0
    prop_name = thermal_conductivity
  [../]
[]

[Materials]
  [./stateful]
    type = StatefulSpatialTest
    block = 0
  [../]
[]

[UserObjects]
  [./copy]
    type = MaterialCopyUserObject
    copy_times = 0.3
    copy_from_element = 0
    copy_to_element = 15
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  start_time = 0.0
  num_steps = 5
  dt = .1
[]

[Outputs]
  file_base = out_stateful_copy
  exodus = true
[]

(test/tests/test_harness/exodiff.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 10 # causes a diff
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4 # Gold file only has 4 steps
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  perf_graph = true
[]

(modules/porous_flow/test/tests/poroperm/except2.i)

# Exception test: fluid=true but no solid_bulk is provided
[Mesh]
  type = GeneratedMesh
  dim = 3
[]

[GlobalParams]
  PorousFlowDictator = dictator
  displacements = 'disp_x disp_y disp_z'
  biot_coefficient = 0.7
[]

[Variables]
  [porepressure]
    initial_condition = 2
  []
  [temperature]
    initial_condition = 4
  []
  [disp_x]
  []
  [disp_y]
  []
  [disp_z]
  []
[]

[ICs]
  [disp_x]
    type = FunctionIC
    function = '0.5 * x'
    variable = disp_x
  []
[]

[Kernels]
  [dummy_p]
    type = TimeDerivative
    variable = porepressure
  []
  [dummy_t]
    type = TimeDerivative
    variable = temperature
  []
  [dummy_x]
    type = TimeDerivative
    variable = disp_x
  []
  [dummy_y]
    type = TimeDerivative
    variable = disp_y
  []
  [dummy_z]
    type = TimeDerivative
    variable = disp_z
  []
[]

[AuxVariables]
  [porosity]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [porosity]
    type = PorousFlowPropertyAux
    property = porosity
    variable = porosity
  []
[]

[Postprocessors]
  [porosity]
    type = PointValue
    variable = porosity
    point = '0 0 0'
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'porepressure temperature'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temperature
  []
  [eff_fluid_pressure]
    type = PorousFlowEffectiveFluidPressure
  []
  [vol_strain]
    type = PorousFlowVolumetricStrain
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = porepressure
    capillary_pressure = pc
  []
  [porosity]
    type = PorousFlowPorosity
    mechanical = true
    fluid = true
    thermal = true
    ensure_positive = false
    porosity_zero = 0.5
    thermal_expansion_coeff = 0.5
    reference_porepressure = 3
    reference_temperature = 3.5
  []
[]

[Executioner]
  solve_type = Newton
  type = Transient
  num_steps = 1
[]

[Outputs]
  csv = true
[]

(modules/functional_expansion_tools/test/tests/standard_use/multiapp_different_physical_boundaries.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '3'
    physical_bounds = '1.0  9.0'
    x = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = multiapp_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Value_UserObject_Main
    multi_app_object_name = FX_Basis_Value_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(modules/phase_field/examples/interfacekernels/interface_fluxbc.i)

#
# This test demonstrates an InterfaceKernel (InterfaceDiffusionFlux) that can
# replace a pair of integrated DiffusionFluxBC boundary conditions.
#
# The AuxVariable 'diff' shows the difference between the BC and the InterfaceKernel
# approach.
#

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 50
    ny = 50
  []
  [./box1]
    input = gen
    type = SubdomainBoundingBoxGenerator
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '0.51 1 0'
  [../]
  [./box2]
    input = box1
    type = SubdomainBoundingBoxGenerator
    block_id = 2
    bottom_left = '0.49 0 0'
    top_right = '1 1 0'
  [../]
  [./iface_u]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = 1
    paired_block = 2
    new_boundary = 10
    input = box2
  [../]
  [./iface_v]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = 2
    paired_block = 1
    new_boundary = 11
    input = iface_u
  [../]
[]

[Variables]
  [./u1]
    block = 1
    [./InitialCondition]
      type = FunctionIC
      function = 'r:=sqrt((x-0.4)^2+(y-0.5)^2);if(r<0.05,5,1)'
    [../]
  [../]
  [./v1]
    block = 2
    [./InitialCondition]
      type = FunctionIC
      function = 'r:=sqrt((x-0.7)^2+(y-0.5)^2);if(r<0.05,5,1)'
    [../]
  [../]
  [./u2]
    block = 1
    [./InitialCondition]
      type = FunctionIC
      function = 'r:=sqrt((x-0.4)^2+(y-0.5)^2);if(r<0.05,5,1)'
    [../]
  [../]
  [./v2]
    block = 2
    [./InitialCondition]
      type = FunctionIC
      function = 'r:=sqrt((x-0.7)^2+(y-0.5)^2);if(r<0.05,5,1)'
    [../]
  [../]
[]

[Kernels]
  [./u1_diff]
    type = Diffusion
    variable = u1
    block = 1
  [../]
  [./u1_dt]
    type = TimeDerivative
    variable = u1
    block = 1
  [../]
  [./v1_diff]
    type = Diffusion
    variable = v1
    block = 2
  [../]
  [./v1_dt]
    type = TimeDerivative
    variable = v1
    block = 2
  [../]

  [./u2_diff]
    type = Diffusion
    variable = u2
    block = 1
  [../]
  [./u2_dt]
    type = TimeDerivative
    variable = u2
    block = 1
  [../]
  [./v2_diff]
    type = Diffusion
    variable = v2
    block = 2
  [../]
  [./v2_dt]
    type = TimeDerivative
    variable = v2
    block = 2
  [../]
[]

[AuxVariables]
  [./diff]
  [../]
[]

[AuxKernels]
  [./u_side]
    type = ParsedAux
    variable = diff
    block = 1
    coupled_variables = 'u1 u2'
    expression = 'u1 - u2'
  [../]
  [./v_side]
    type = ParsedAux
    variable = diff
    block = 2
    coupled_variables = 'v1 v2'
    expression = 'v1 - v2'
  [../]
[]

[InterfaceKernels]
  [./iface]
    type = InterfaceDiffusionBoundaryTerm
    boundary = 10
    variable = u2
    neighbor_var = v2
  [../]
[]

[BCs]
  [./u_boundary_term]
    type = DiffusionFluxBC
    variable = u1
    boundary = 10
  [../]
  [./v_boundary_term]
    type = DiffusionFluxBC
    variable = v1
    boundary = 11
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.001
  num_steps = 20
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
[]

(modules/porous_flow/test/tests/dirackernels/bh_except06.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    point_file = bh02.bh
    use_mobility = true
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(modules/phase_field/test/tests/KKS_system/kks_example.i)

#
# KKS toy problem in the non-split form
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  nz = 0
  xmin = -0.5
  xmax = 0.5
  ymin = -0.5
  ymax = 0.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  # order parameter
  [./eta]
    order = THIRD
    family = HERMITE
  [../]

  # hydrogen concentration
  [./c]
    order = THIRD
    family = HERMITE
  [../]

  # hydrogen phase concentration (matrix)
  [./cm]
    order = THIRD
    family = HERMITE
    initial_condition = 0.0
  [../]
  # hydrogen phase concentration (delta phase)
  [./cd]
    order = THIRD
    family = HERMITE
    initial_condition = 0.0
  [../]
[]

[ICs]
  [./eta]
    variable = eta
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 0.2
    invalue = 0.2
    outvalue = 0.1
    int_width = 0.05
  [../]
  [./c]
    variable = c
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 0.2
    invalue = 0.6
    outvalue = 0.4
    int_width = 0.05
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = 'eta c cm cd'
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  # Free energy of the matrix
  [./fm]
    type = DerivativeParsedMaterial
    property_name = fm
    coupled_variables = 'cm'
    expression = '(0.1-cm)^2'
    outputs = oversampling
  [../]

  # Free energy of the delta phase
  [./fd]
    type = DerivativeParsedMaterial
    property_name = fd
    coupled_variables = 'cd'
    expression = '(0.9-cd)^2'
    outputs = oversampling
  [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
    outputs = oversampling
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
    outputs = oversampling
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'L   '
    prop_values = '0.7 '
  [../]
[]

[Kernels]
  # enforce c = (1-h(eta))*cm + h(eta)*cd
  [./PhaseConc]
    type = KKSPhaseConcentration
    ca       = cm
    variable = cd
    c        = c
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotVacancies]
    type = KKSPhaseChemicalPotential
    variable = cm
    cb       = cd
    fa_name  = fm
    fb_name  = fd
  [../]

  #
  # Cahn-Hilliard Equation
  #
  [./CHBulk]
    type = KKSCHBulk
    variable = c
    ca       = cm
    cb       = cd
    fa_name  = fm
    fb_name  = fd
    mob_name = 0.7
  [../]
  [./dcdt]
    type = TimeDerivative
    variable = c
  [../]

  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = fm
    fb_name  = fd
    coupled_variables     = 'cm cd'
    w        = 0.4
  [../]
  [./ACBulkC]
    type = KKSACBulkC
    variable = eta
    ca       = cm
    cb       = cd
    fa_name  = fm
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = 0.4
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type'
  petsc_options_value = ' asm    lu          nonzero'

  l_max_its = 100
  nl_max_its = 100
  nl_rel_tol = 1e-4

  num_steps = 1

  dt = 0.01
  dtmin = 0.01
[]

[Preconditioning]
  [./mydebug]
    type = SMP
    full = true
  [../]
[]

[Outputs]
  file_base = kks_example
  [./oversampling]
    type = Exodus
    refinements = 3
  [../]
[]

(modules/functional_expansion_tools/test/tests/errors/multiapp_incompatible_orders.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '36'
    physical_bounds = '0.0  10.0'
    x = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = multiapp_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Value_UserObject_Main
    multi_app_object_name = FX_Basis_Value_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(test/tests/outputs/checkpoint/checkpoint.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 11
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(modules/combined/examples/phase_field-mechanics/SimplePhaseTrans.i)

#
# Martensitic transformation
# One structural order parameter (SOP) governed by AllenCahn Eqn.
# Chemical driving force described by Landau Polynomial
# Coupled with elasticity (Mechanics)
# Eigenstrain as a function of SOP
#

[GlobalParams]
  displacements = 'disp_x disp_y'
[]

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 100
  ny = 100
  xmin = 0
  xmax = 100
  ymin = 0
  ymax = 100

  elem_type = QUAD4
[]

[Variables]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 50
      y1 = 50
      radius = 10.0
      invalue = 1.0
      outvalue = 0.0
      int_width = 5.0
    [../]
  [../]
[]

[Physics/SolidMechanics/QuasiStatic]
  [./all]
    add_variables = true
    generate_output = 'stress_xx stress_yy'
    eigenstrain_names = 'eigenstrain'
  [../]
[]

[Kernels]
  [./eta_bulk]
    type = AllenCahn
    variable = eta
    f_name = F
  [../]
  [./eta_interface]
    type = ACInterface
    variable = eta
    kappa_name = kappa_eta
  [../]
  [./time]
    type = TimeDerivative
    variable = eta
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'L kappa_eta'
    prop_values = '1 1'
  [../]

  [./chemical_free_energy]
    type = DerivativeParsedMaterial
    property_name = Fc
    coupled_variables = 'eta'
    constant_names = 'A2 A3 A4'
    constant_expressions = '0.2 -12.6 12.4'
    expression = A2/2*eta^2+A3/3*eta^3+A4/4*eta^4
    enable_jit = true
    derivative_order = 2
  [../]

  [./elasticity_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '70 30 30 70 30 70 30 30 30'
    fill_method = symmetric9
  [../]

  [./stress]
    type = ComputeLinearElasticStress
  [../]

  [./var_dependence]
    type = DerivativeParsedMaterial
    expression = eta
    coupled_variables = 'eta'
    property_name = var_dep
    enable_jit = true
    derivative_order = 2
  [../]

  [./eigenstrain]
    type = ComputeVariableEigenstrain
    eigen_base = '0.1 0.1 0 0 0 0'
    prefactor = var_dep
    #outputs = exodus
    args = 'eta'
    eigenstrain_name = eigenstrain
  [../]

  [./elastic_free_energy]
    type = ElasticEnergyMaterial
    f_name = Fe
    args = 'eta'
    derivative_order = 2
  [../]

  [./free_energy]
    type = DerivativeSumMaterial
    property_name = F
    sum_materials = 'Fc Fe'
    coupled_variables = 'eta'
    derivative_order = 2
  [../]
[]

[BCs]
  [./all_y]
    type = DirichletBC
    variable = disp_y
    boundary = 'top bottom left right'
    value = 0
  [../]
  [./all_x]
    type = DirichletBC
    variable = disp_x
    boundary = 'top bottom left right'
    value = 0
  [../]
[]

[Preconditioning]
  # active = ' '
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  # this gives best performance on 4 cores
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type  -sub_pc_type '
  petsc_options_value = 'asm       lu'

  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1.0e-10
  start_time = 0.0
  num_steps = 10

  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 9
    iteration_window = 2
    growth_factor = 1.1
    cutback_factor = 0.75
    dt = 0.3
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/preconditioners/reuse/convergence.i)

# Simple 3D test with diffusion, setup to make sure
# there is a sensible difference in the linear iteration
# counts with re-use versus without re-use

[Variables]
  [u]
  []
[]

[Mesh]
  [msh]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 4
    ny = 4
    nz = 4
  []
[]

[Kernels]
  [diffusion]
    type = FunctionDiffusion
    variable = u
    function = 'arg'
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [body_force]
    type = BodyForce
    variable = u
    function = body
  []
[]

[Functions]
  [body]
    type = ParsedFunction
    expression = 100*sin(t)
  []
  [arg]
    type = ParsedFunction
    expression = 'x*y*z*cos(t)+1'
  []
[]

[BCs]
  [fix_concentration]
    type = DirichletBC
    preset = true
    boundary = left
    variable = u
    value = 0.0
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient

  solve_type = 'newton'
  line_search = none

  petsc_options = ''
  petsc_options_iname = '-pc_type -ksp_type'
  petsc_options_value = 'lu gmres'
  l_tol = 1e-8
  l_max_its = 100

  reuse_preconditioner = false
  reuse_preconditioner_max_linear_its = 10

  nl_max_its = 10
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-10

  start_time = 0.0
  dt = 1.0
  dtmin = 1.0
  end_time = 10.0

  [./Adaptivity]
    interval = 5
    max_h_level = 1
    start_time = 11.0
    stop_time = 6.0
  [../]

[]

[Reporters/iteration_info]
  type = IterationInfo
[]

[Outputs]
  exodus = false
  [./csv]
    type = CSV
    file_base = base_case
  [../]
[]

(test/tests/bcs/periodic/auto_periodic_bc_test_3d.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 10
  ny = 10
  nz = 10
  xmax = 40
  ymax = 40
  zmax = 40
  elem_type = HEX8
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'diff forcing dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = GaussContForcing
    variable = u
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = u
      auto_direction = 'x y z'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 20
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_auto_3d
  exodus = true
[]

(test/tests/multiapps/picard/picard_adaptive_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_abs_tol = 1e-14

  [TimeStepper]
    type = IterationAdaptiveDT
    dt = 0.1
    # cutback_factor, growth_factor, optimal_iterations, time_dt and time_t added through CLI args
  []
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_adaptive_sub.i
    # The input was originally created with effectively no restore
    # see the changes made for #5554 then reverted in #28115
    no_restore = true
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(test/tests/multiapps/catch_up/parent.i)

# ##########################################################
# This is a test of the Multiapp System. This test solves
# four independent applications spaced throughout a
# parent domain interleaved with a parent solve.
#
# @Requirement F7.10
# ##########################################################
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 'left'
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 'right'
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 0.2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    type = TransientMultiApp
    positions = '0 0 0  0.5 0.5 0'
    input_files = 'sub.i failing_sub.i'
    app_type = MooseTestApp
    execute_on = 'timestep_end'
    max_catch_up_steps = 100
    max_failures = 100
    catch_up = true
  [../]
[]

(modules/porous_flow/test/tests/jacobian/pls04.i)

# PorousFlowPiecewiseLinearSink with 2-phase, 3-components, with enthalpy, internal_energy, and thermal_conductivity
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 2
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph0_sp1]
  []
  [massfrac_ph1_sp0]
  []
  [massfrac_ph1_sp1]
  []
  [temp]
  []
[]


[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp ppwater ppgas massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
    number_fluid_phases = 2
    number_fluid_components = 3
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
[]

[ICs]
  [temp]
    type = RandomIC
    variable = temp
    min = 1
    max = 2
  []
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph0_sp1]
    type = RandomIC
    variable = massfrac_ph0_sp1
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp1]
    type = RandomIC
    variable = massfrac_ph1_sp1
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_temp]
    type = TimeDerivative
    variable = temp
  []
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m01]
    type = TimeDerivative
    variable = massfrac_ph0_sp1
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
  [dummy_m11]
    type = TimeDerivative
    variable = massfrac_ph1_sp1
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
    cv = 1.1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
    cv = 1.8
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
  [thermal_conductivity]
    type = PorousFlowThermalConductivityIdeal
    dry_thermal_conductivity = '0.1 0.2 0.3 0.2 0 0.1 0.3 0.1 0.1'
    wet_thermal_conductivity = '10 2 31 2 40 1 31 1 10'
    exponent = 0.5
  []
[]

[BCs]
  [flux_w]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'left'
    pt_vals = '-1 -0.5 0'
    multipliers = '1 2 4'
    variable = ppwater
    mass_fraction_component = 0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
    use_enthalpy = true
    flux_function = 'x*y'
  []
  [flux_g]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'top'
    pt_vals = '0 0.5 1'
    multipliers = '1 -2 4'
    mass_fraction_component = 0
    variable = ppgas
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    use_internal_energy = true
    flux_function = '-x*y'
  []
  [flux_1]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'right'
    pt_vals = '0 0.5 1'
    multipliers = '1 3 4'
    mass_fraction_component = 1
    variable = massfrac_ph0_sp0
    fluid_phase = 0
    use_relperm = true
    use_mobility = true
    use_internal_energy = true
  []
  [flux_2]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'back top'
    pt_vals = '0 0.5 1'
    multipliers = '0 1 -3'
    mass_fraction_component = 1
    variable = massfrac_ph1_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    use_enthalpy = true
    flux_function = '0.5*x*y'
  []
  [flux_3]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'right'
    pt_vals = '0 0.5 1'
    multipliers = '1 3 4'
    mass_fraction_component = 2
    variable = ppwater
    fluid_phase = 0
    use_relperm = true
    use_enthalpy = true
    use_mobility = true
  []
  [flux_4]
    type = PorousFlowPiecewiseLinearSink
    boundary = 'back top'
    pt_vals = '0 0.5 1'
    multipliers = '0 1 -3'
    mass_fraction_component = 2
    variable = massfrac_ph1_sp0
    fluid_phase = 1
    use_relperm = true
    use_mobility = true
    flux_function = '-0.5*x*y'
    use_enthalpy = true
    use_thermal_conductivity = true
  []
[]

[Preconditioning]
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  file_base = pls04
[]

(modules/phase_field/test/tests/misc/equal_gradient_lagrange.i)

#
# This test demonstrates an InterfaceKernel set that can enforce the componentwise
# continuity of the gradient of a variable using the Lagrange multiplier method.
#

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 20
    ny = 10
    ymax = 0.5
  []
  [./box1]
    type = SubdomainBoundingBoxGenerator
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '0.51 1 0'
    input = gen
  [../]
  [./box2]
    type = SubdomainBoundingBoxGenerator
    block_id = 2
    bottom_left = '0.49 0 0'
    top_right = '1 1 0'
    input = box1
  [../]
  [./iface_u]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = 1
    paired_block = 2
    new_boundary = 10
    input = box2
  [../]
[]

[Variables]
  [./u2]
    block = 1
    [./InitialCondition]
      type = FunctionIC
      function = 'r:=sqrt((x-0.4)^2+(y-0.5)^2);if(r<0.05,5,1)'
    [../]
  [../]
  [./v2]
    block = 2
    initial_condition = 0.8
  [../]
  [./lambda]
  [../]
[]

[Kernels]
  [./u2_diff]
    type = Diffusion
    variable = u2
    block = 1
  [../]
  [./u2_dt]
    type = TimeDerivative
    variable = u2
    block = 1
  [../]
  [./v2_diff]
    type = Diffusion
    variable = v2
    block = 2
  [../]
  [./v2_dt]
    type = TimeDerivative
    variable = v2
    block = 2
  [../]
  [./lambda]
    type = NullKernel
    variable = lambda
  [../]
[]

[InterfaceKernels]
  [./iface]
    type = InterfaceDiffusionBoundaryTerm
    boundary = 10
    variable = u2
    neighbor_var = v2
  [../]
  [./lambda]
    type = EqualGradientLagrangeMultiplier
    variable = lambda
    boundary = 10
    element_var = u2
    neighbor_var = v2
    component = 0
  [../]
  [./constraint]
    type = EqualGradientLagrangeInterface
    boundary = 10
    lambda = lambda
    variable = u2
    neighbor_var = v2
    component = 0
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
  [../]
[]

[VectorPostprocessors]
  [./uv]
    type = LineValueSampler
    variable = 'u2 v2'
    start_point = '0 0.5 0'
    end_point = '1 0.5 0'
    sort_by = x
    num_points = 100
  [../]
[]

[Executioner]
  type = Transient

  petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type -pc_factor_shift_type'
  petsc_options_value = ' asm    lu          nonzero                    nonzero'

  dt = 0.002
  num_steps = 10
[]

[Outputs]
  exodus = true
  csv = true
  hide = lambda
  print_linear_residuals = false
[]

(modules/phase_field/test/tests/MultiSmoothCircleIC/multismoothcircleIC_normal_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 15
  ny = 15
  nz = 15
  xmin = 0
  xmax = 100
  ymin = 0
  ymax = 100
  zmin = 0
  zmax = 100
  elem_type = HEX8
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./c]
    type = MultiSmoothCircleIC
    variable = c
    invalue = 1.0
    outvalue = 0.0001
    bubspac = 30.0 # This spacing is from bubble center to bubble center
    numbub = 10
    radius = 10.0
    int_width = 12.0
    rand_seed = 2000
    radius_variation = 2 #This is the standard deviation
    radius_variation_type = normal
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./diff]
    type = MatDiffusion
    variable = c
    diffusivity = D_v
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y z'
    [../]
  [../]
[]

[Materials]
  [./Dv]
    type = GenericConstantMaterial
    prop_names = D_v
    prop_values = 0.074802
  [../]
[]

[Postprocessors]
  [./bubbles]
    type = FeatureFloodCount
    variable = c
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart -mat_mffd_type'
  petsc_options_value = 'hypre boomeramg 101 ds'
  l_max_its = 20
  l_tol = 1e-4
  nl_max_its = 20
  nl_rel_tol = 1e-9
  nl_abs_tol = 1e-11
  start_time = 0.0
  num_steps = 1
  dt = 100.0
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/fluidstate/waterncg_nonisothermal.i)

[Mesh]
  [mesh]
    type = GeneratedMeshGenerator
    dim = 2
  []
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pgas]
    initial_condition = 1e6
  []
  [z]
    initial_condition = 0.25
  []
  [temperature]
    initial_condition = 70
  []
[]

[AuxVariables]
  [pressure_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [pressure_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [saturation_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [saturation_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [density_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [density_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [viscosity_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [viscosity_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [enthalpy_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [enthalpy_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [internal_energy_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [internal_energy_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [x0_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [x0_gas]
    order = CONSTANT
    family = MONOMIAL
  []
  [x1_water]
    order = CONSTANT
    family = MONOMIAL
  []
  [x1_gas]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [pressure_water]
    type = PorousFlowPropertyAux
    variable = pressure_water
    property = pressure
    phase = 0
    execute_on = timestep_end
  []
  [pressure_gas]
    type = PorousFlowPropertyAux
    variable = pressure_gas
    property = pressure
    phase = 1
    execute_on = timestep_end
  []
  [saturation_water]
    type = PorousFlowPropertyAux
    variable = saturation_water
    property = saturation
    phase = 0
    execute_on = timestep_end
  []
  [saturation_gas]
    type = PorousFlowPropertyAux
    variable = saturation_gas
    property = saturation
    phase = 1
    execute_on = timestep_end
  []
  [density_water]
    type = PorousFlowPropertyAux
    variable = density_water
    property = density
    phase = 0
    execute_on = timestep_end
  []
  [density_gas]
    type = PorousFlowPropertyAux
    variable = density_gas
    property = density
    phase = 1
    execute_on = timestep_end
  []
  [viscosity_water]
    type = PorousFlowPropertyAux
    variable = viscosity_water
    property = viscosity
    phase = 0
    execute_on = timestep_end
  []
  [viscosity_gas]
    type = PorousFlowPropertyAux
    variable = viscosity_gas
    property = viscosity
    phase = 1
    execute_on = timestep_end
  []
  [enthalpy_water]
    type = PorousFlowPropertyAux
    variable = enthalpy_water
    property = enthalpy
    phase = 0
    execute_on = timestep_end
  []
  [enthalpy_gas]
    type = PorousFlowPropertyAux
    variable = enthalpy_gas
    property = enthalpy
    phase = 1
    execute_on = timestep_end
  []
  [internal_energy_water]
    type = PorousFlowPropertyAux
    variable = internal_energy_water
    property = internal_energy
    phase = 0
    execute_on = timestep_end
  []
  [internal_energy_gas]
    type = PorousFlowPropertyAux
    variable = internal_energy_gas
    property = internal_energy
    phase = 1
    execute_on = timestep_end
  []
  [x1_water]
    type = PorousFlowPropertyAux
    variable = x1_water
    property = mass_fraction
    phase = 0
    fluid_component = 1
    execute_on = timestep_end
  []
  [x1_gas]
    type = PorousFlowPropertyAux
    variable = x1_gas
    property = mass_fraction
    phase = 1
    fluid_component = 1
    execute_on = timestep_end
  []
  [x0_water]
    type = PorousFlowPropertyAux
    variable = x0_water
    property = mass_fraction
    phase = 0
    fluid_component = 0
    execute_on = timestep_end
  []
  [x0_gas]
    type = PorousFlowPropertyAux
    variable = x0_gas
    property = mass_fraction
    phase = 1
    fluid_component = 0
    execute_on = timestep_end
  []
[]

[Kernels]
  [mass0]
    type = PorousFlowMassTimeDerivative
    variable = pgas
    fluid_component = 0
  []
  [mass1]
    type = PorousFlowMassTimeDerivative
    variable = z
    fluid_component = 1
  []
  [heat]
    type = TimeDerivative
    variable = temperature
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pgas z '
    number_fluid_phases = 2
    number_fluid_components = 2
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0
  []
  [fs]
    type = PorousFlowWaterNCG
    water_fp = water
    gas_fp = co2
    capillary_pressure = pc
  []
[]

[FluidProperties]
  [co2]
    type = CO2FluidProperties
  []
  [water]
    type = Water97FluidProperties
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temperature
  []
  [waterncg]
    type = PorousFlowFluidState
    gas_porepressure = pgas
    z = z
    temperature = temperature
    temperature_unit = Celsius
    capillary_pressure = pc
    fluid_state = fs
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1e-12 0 0 0 1e-12 0 0 0 1e-12'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 1
  end_time = 1
  nl_abs_tol = 1e-12
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Postprocessors]
  [density_water]
    type = ElementIntegralVariablePostprocessor
    variable = density_water
  []
  [density_gas]
    type = ElementIntegralVariablePostprocessor
    variable = density_gas
  []
  [viscosity_water]
    type = ElementIntegralVariablePostprocessor
    variable = viscosity_water
  []
  [viscosity_gas]
    type = ElementIntegralVariablePostprocessor
    variable = viscosity_gas
  []
  [enthalpy_water]
    type = ElementIntegralVariablePostprocessor
    variable = enthalpy_water
  []
  [enthalpy_gas]
    type = ElementIntegralVariablePostprocessor
    variable = enthalpy_gas
  []
  [internal_energy_water]
    type = ElementIntegralVariablePostprocessor
    variable = internal_energy_water
  []
  [internal_energy_gas]
    type = ElementIntegralVariablePostprocessor
    variable = internal_energy_gas
  []
  [x0_water]
    type = ElementIntegralVariablePostprocessor
    variable = x0_water
  []
  [x1_gas]
    type = ElementIntegralVariablePostprocessor
    variable = x1_gas
  []
  [x0_gas]
    type = ElementIntegralVariablePostprocessor
    variable = x0_gas
  []
  [sg]
    type = ElementIntegralVariablePostprocessor
    variable = saturation_gas
  []
  [sw]
    type = ElementIntegralVariablePostprocessor
    variable = saturation_water
  []
  [pwater]
    type = ElementIntegralVariablePostprocessor
    variable = pressure_water
  []
  [pgas]
    type = ElementIntegralVariablePostprocessor
    variable = pressure_gas
  []
  [x0mass]
    type = PorousFlowFluidMass
    fluid_component = 0
    phase = '0 1'
  []
  [x1mass]
    type = PorousFlowFluidMass
    fluid_component = 1
    phase = '0 1'
  []
[]

[Outputs]
  csv = true
  execute_on = timestep_end
[]

(modules/phase_field/test/tests/phase_field_kernels/CoupledCoefAllenCahn.i)

#
# Test the CoefReaction kernel (which adds -L*v to the residual) for the case
# where v is a coupled variable
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmin = 0
  xmax = 50
  ymin = 0
  ymax = 50
  zmin = 0
  zmax = 50
  elem_type = QUAD4
[]

[Variables]
  [./w]
  [../]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 25.0
      y1 = 25.0
      radius = 6.0
      invalue = 1.0
      outvalue = 0.0
      int_width = 3.0
    [../]
  [../]
[]

[Kernels]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
  [./ACBulk]
    type = CoupledAllenCahn
    variable = w
    v = eta
    f_name = F
    mob_name = 1
  [../]
  [./W]
    type = MatReaction
    variable = w
    reaction_rate = -1
  [../]
  [./CoupledBulk]
    type = MatReaction
    variable = eta
    v = w
    reaction_rate = L
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = 1
    mob_name = L
    coupled_variables = w
  [../]
[]

[Materials]
  [./mobility]
    type = DerivativeParsedMaterial
    property_name  = L
    coupled_variables = 'eta w'
    expression = '(1.5-eta)^2+(1.5-w)^2'
    derivative_order = 2
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'eta'
    expression = 'eta^2 * (1-eta)^2'
    derivative_order = 2
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'PJFNK'

  l_max_its = 15
  l_tol = 1.0e-4

  nl_max_its = 10
  nl_rel_tol = 1.0e-11

  start_time = 0.0
  num_steps = 2
  dt = 0.5
[]

[Outputs]
  hide = w
  exodus = true
[]

(test/tests/multiapps/grid-sequencing/coarse.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 20
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [rxn]
    type = Reaction
    variable = u
  []
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]


[Executioner]
  type = Transient
  num_steps = 2
  dt = 1

  solve_type = 'PJFNK'
  petsc_options = '-snes_monitor_solution'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/restart/restart_diffusion/restart_diffusion_from_end_part1.i)

[Mesh]
  [./square]
    type = GeneratedMeshGenerator
    nx = 2
    ny = 2
    dim = 2
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 6
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/examples/kim-kim-suzuki/kks_example_dirichlet.i)

#
# KKS simple example in the split form
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  elem_type = QUAD4
  nx = 50
  ny = 2
  nz = 0
  xmin = 0
  xmax = 20
  ymin = 0
  ymax = 0.4
  zmin = 0
  zmax = 0
[]

[AuxVariables]
  [./Fglobal]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Variables]
  # order parameter
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]

  # hydrogen concentration
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]

  # chemical potential
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]

  # Liquid phase solute concentration
  [./cl]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.1
  [../]
  # Solid phase solute concentration
  [./cs]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.9
  [../]
[]

[Functions]
  [./ic_func_eta]
    type = ParsedFunction
    expression = 0.5*(1.0-tanh((x)/sqrt(2.0)))
  [../]
  [./ic_func_c]
    type = ParsedFunction
    expression = '0.9*(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10)+0.1*(1-(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10))'
  [../]
[]

[ICs]
  [./eta]
    variable = eta
    type = FunctionIC
    function = ic_func_eta
  [../]
  [./c]
    variable = c
    type = FunctionIC
    function = ic_func_c
  [../]
[]

[BCs]
  [./left_c]
    type = DirichletBC
    variable = 'c'
    boundary = 'left'
    value = 0.5
  [../]
  [./left_eta]
    type = DirichletBC
    variable = 'eta'
    boundary = 'left'
    value = 0.5
  [../]
[]

[Materials]
  # Free energy of the liquid
  [./fl]
    type = DerivativeParsedMaterial
    property_name = fl
    coupled_variables = 'cl'
    expression = '(0.1-cl)^2'
  [../]

  # Free energy of the solid
  [./fs]
    type = DerivativeParsedMaterial
    property_name = fs
    coupled_variables = 'cs'
    expression = '(0.9-cs)^2'
  [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   eps_sq'
    prop_values = '0.7 0.7 1.0  '
  [../]
[]

[Kernels]
  # enforce c = (1-h(eta))*cl + h(eta)*cs
  [./PhaseConc]
    type = KKSPhaseConcentration
    ca       = cl
    variable = cs
    c        = c
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotSolute]
    type = KKSPhaseChemicalPotential
    variable = cl
    cb       = cs
    fa_name  = fl
    fb_name  = fs
  [../]

  #
  # Cahn-Hilliard Equation
  #
  [./CHBulk]
    type = KKSSplitCHCRes
    variable = c
    ca       = cl
    fa_name  = fl
    w        = w
  [../]

  [./dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  [../]

  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = fl
    fb_name  = fs
    w        = 1.0
    coupled_variables = 'cl cs'
  [../]
  [./ACBulkC]
    type = KKSACBulkC
    variable = eta
    ca       = cl
    cb       = cs
    fa_name  = fl
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = eps_sq
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[AuxKernels]
  [./GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fl
    fb_name = fs
    w = 1.0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type'
  petsc_options_value = 'asm      ilu          nonzero'

  l_max_its = 100
  nl_max_its = 100
  nl_abs_tol = 1e-10

  end_time = 800
  dt = 4.0
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]

[Postprocessors]
  [./dofs]
    type = NumDOFs
  [../]
  [./integral]
    type = ElementL2Error
    variable = eta
    function = ic_func_eta
  [../]
[]

[Outputs]
  exodus = true
  console = true
  gnuplot = true
[]

(test/tests/meshgenerators/file_mesh_generator/exact_discontinuous_iga.i)

[Mesh]
  [cyl2d_iga]
    type = FileMeshGenerator
    file = test_quadratic.e
    discontinuous_spline_extraction = true
  []
[]

[Variables]
  [u]
    order = SECOND  # Must match mesh order
    family = RATIONAL_BERNSTEIN
  []
[]

[ICs]
  [u]
    type = FunctionIC
    variable = u
    function = 'x'
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
    block = 0  # Avoid direct calculations on spline nodes
  []
  [./time]
    type = TimeDerivative
    variable = u
    block = 0
  [../]
  [null]
    type = NullKernel
    variable = u
    block = 1  # Keep kernel coverage check happy
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
  solve_type = NEWTON
  dt = 1
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/bdf2/bdf2_adapt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 4
  ny = 4
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.25

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/outputs/hide_vector_pp/hide_vector_pp.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./pp]
    type = NumElements
    outputs = csv
  [../]
[]

[VectorPostprocessors]
  [./vpp]
    type = LineValueSampler
    variable = u
    start_point = '0 0 0'
    end_point = '1 1 0'
    num_points = 10
    sort_by = id
    outputs = 'test'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  csv = true
  [./test]
    type = CSV
    execute_on = 'FINAL'
  [../]
[]

(modules/porous_flow/examples/flow_through_fractured_media/diffusion.i)

[Mesh]
  file = diffusion_1.e # or diffusion_5.e or diffusion_fine.e
[]

[Variables]
  [T]
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = 2
    variable = T
    value = 1
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = T
  []
  [fracture_diffusion]
    type = AnisotropicDiffusion
    block = 1
    tensor_coeff = '1 0 0  0 1 0  0 0 1'
    variable = T
  []
  [matrix_diffusion]
    type = AnisotropicDiffusion
    block = '2 3'
    tensor_coeff = '0 0 0  0 0 0  0 0 0'
    variable = T
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 10
  end_time = 100
  nl_abs_tol = 1E-13
  nl_rel_tol = 1E-12
[]

[Outputs]
  print_linear_residuals = false
  exodus = true
[]

(test/tests/variables/time_derivatives_neighbor/test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 4
  nx = 2
[]

[Functions]
  [a_fn]
    type = ParsedFunction
    expression = 't*(t+x)'
  []
[]

[AuxVariables]
  [a]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [a_ak]
    type = FunctionAux
    variable = a
    function = a_fn
  []
[]

[Materials]
  [cm]
    type = CoupledValuesMaterial
    variable = a
  []
[]

[Variables]
  [u]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[DGKernels]
  [dgk]
    type = MatDGKernel
    variable = u
    mat_prop = a_value
  []
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 3

  [TimeIntegrator]
    type = NewmarkBeta
  []
  [Quadrature]
    type = GAUSS
    order = FIRST
  []
[]

[Outputs]
  [./out]
    type = Exodus
    output_material_properties = true
    show_material_properties = 'a_value a_dot a_dot_dot a_dot_du a_dot_dot_du'
    execute_on = 'TIMESTEP_END'
  [../]
[]

(test/tests/postprocessors/nodal_extreme_value/nodal_extreme_pps_test.i)

[Mesh]
  type = FileMesh
  file = trapezoid.e
  uniform_refine = 1
  # This test will not work in parallel with DistributedMesh enabled
  # due to a bug in PeriodicBCs.
  parallel_type = replicated
[]

[Functions]
  [./tr_x]
    type = ParsedFunction
    expression = -x*cos(pi/3)
  [../]
  [./tr_y]
    type = ParsedFunction
    expression = x*sin(pi/3)
  [../]
  [./itr_x]
    type = ParsedFunction
    expression = -x/cos(pi/3)
  [../]
  [./itr_y]
    type = ParsedFunction
    expression = 0
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./forcing]
    type = GaussContForcing
    variable = u
    x_center = 2
    y_center = -1
    x_spread = 0.25
    y_spread = 0.5
  [../]
  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  # active = ' '
  [./Periodic]
    [./x]
      primary = 1
      secondary = 4
      transform_func = 'tr_x tr_y'
      inv_transform_func = 'itr_x itr_y'
    [../]
  [../]
[]

[Postprocessors]
  [./max_nodal_pps]
    type = NodalExtremeValue
    variable = u
  [../]
  [./max_node_id]
    type = NodalMaxValueId
    variable = u
  [../]
  [./min_nodal_pps]
    type = NodalExtremeValue
    variable = u
    value_type = min
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.5
  num_steps = 6
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/multiapps/picard/function_dt_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  ymin = 0
  xmax = 1
  ymax = 1
  nx = 10
  ny = 10
[]

[Functions]
  [v_fn]
    type = ParsedFunction
    expression = t*x
  []
  [ffn]
    type = ParsedFunction
    expression = x
  []

  [dts]
    type = PiecewiseLinear
    x = '0.1  10'
    y = '0.1  10'
  []
[]

[AuxVariables]
  [v]
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [ufn]
    type = BodyForce
    variable = u
    function = ffn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = v_fn
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  solve_type = 'PJFNK'

  nl_abs_tol = 1e-10
  fixed_point_max_its = 2
  start_time = 0
  num_steps = 3
  [TimeStepper]
    type = FunctionDT
    function = dts
  []
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    app_type = MooseTestApp
    type = TransientMultiApp
    input_files = 'function_dt_sub.i'
    execute_on = timestep_end
    positions = '0 -1 0'
  []
[]

[Transfers]
  [from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub_app
    source_variable = u
    variable = v
  []
[]

(test/tests/controls/time_periods/error/steady_error.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
#  The TimeDerivative existing in a Steady calculation will trigger an error itself!
#  [./time]
#    type = TimeDerivative
#    variable = u
#  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Steady
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Dampers]
  [./const_damp]
    type = ConstantDamper
    damping = 0.9
  [../]
[]

[Controls]
  [./damping_control]
    type = TimePeriod
    disable_objects = 'const_damp'
    start_time = 0.25
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/dirackernels/reporter_point_source/2d_vpp_transient.i)

[Mesh]
  [square]
    type = GeneratedMeshGenerator
    nx = 2
    ny = 2
    dim = 2
  []
  uniform_refine = 4
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [dot]
    type = TimeDerivative
    variable = u
  []
[]

[DiracKernels]
  [vpp_point_source]
    type = ReporterPointSource
    variable = u
    value_name = point_sample_source/u
    x_coord_name = point_sample_source/x
    y_coord_name = point_sample_source/y
    z_coord_name = point_sample_source/z
  []
[]

[VectorPostprocessors]
  [point_sample_source]
    type = PointValueSampler
    variable = u
    points = '0.2 0.8 0.0  0.2 0.2 0.0'
    sort_by = id
    execute_on = 'timestep_begin'
    outputs = none
  []
  [point_sample_out]
    type = PointValueSampler
    variable = u
    points = '0.2 0.8 0.0'
    sort_by = id
    execute_on = 'timestep_begin'
    contains_complete_history = true
    outputs = 'csv'
  []
[]

[Functions]
  [left_bc_fn]
    type = ParsedFunction
    expression = 1+5*y*y
  []
[]

[BCs]
  [left]
    type = FunctionNeumannBC
    variable = u
    boundary = left
    function = left_bc_fn
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  dt = 0.01
  num_steps = 5
  solve_type = 'PJFNK'
  nl_rel_tol = 1e-10
[]

[Outputs]
  csv = true
[]

(test/tests/userobjects/shape_element_user_object/simple_shape_element_uo_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 2
  ny = 2
  nz = 2
  parallel_type = replicated
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = (x-0.5)^2
    [../]
  [../]
[]

[Kernels]
  [./diff_u]
    type = Diffusion
    variable = u
  [../]
  [./time_u]
    type = TimeDerivative
    variable = u
  [../]
  [./shape_u]
    type = SimpleTestShapeElementKernel
    user_object = example_uo
    variable = u
  [../]
[]

[UserObjects]
  [./example_uo]
    type = SimpleTestShapeElementUserObject
    u = u
    # as this userobject computes quantities for both the residual AND the jacobian
    # it needs to have these execute_on flags set.
    execute_on = 'linear nonlinear'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  petsc_options = '-snes_test_display'
  petsc_options_iname = '-snes_type'
  petsc_options_value = 'test'
  dt = 0.1
  num_steps = 2
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(test/tests/userobjects/Terminator/terminator.i)

###########################################################
# This is a test of the UserObject System. The
# Terminator UserObject executes independently after
# each solve and can terminate the solve early due to
# user-defined criteria. (Type: GeneralUserObject)
#
# @Requirement F6.40
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 30
  ny = 6
  xmin = -15.0
  xmax = 15.0
  ymin = -3.0
  ymax = 3.0
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1
  [../]
[]

[Postprocessors]
  [./max_c]
    type = NodalExtremeValue
    variable = c
    execute_on = 'initial timestep_end'
  [../]
[]

[UserObjects]
  [./arnold]
    type = Terminator
    expression = 'max_c < 0.5'
  [../]
[]

[Kernels]
  [./cres]
    type = Diffusion
    variable = c
  [../]

  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[BCs]
  [./c]
    type = DirichletBC
    variable = c
    boundary = left
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  dt = 100
  num_steps = 6
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_conservative_transfer/sub_userobject.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 8
  xmax = 0.1
  ymax = 0.5
  coord_type = rz
[]

[Variables]
  [u]
    initial_condition = 1
  []
[]

[AuxVariables]
  [layered_average_value]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Postprocessors]
  [from_postprocessor]
    type = ElementIntegralVariablePostprocessor
    variable = layered_average_value
  []
[]

[Functions]
  [axial_force]
    type = ParsedFunction
    expression = 1000*y
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    function = axial_force
  []
[]

[AuxKernels]
  [layered_aux]
    type = SpatialUserObjectAux
    variable = layered_average_value
    execute_on = 'nonlinear TIMESTEP_END'
    user_object = layered_average
  []
[]

[BCs]
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[UserObjects]
  [layered_average]
    type = LayeredAverage
    variable = u
    direction = y
    num_layers = 4
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.001
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/04_parent_multiple.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1.

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions   = '0 0 0  1 0 0  2 0 0'
#    positions_file = 04_positions.txt
    input_files = '04_sub1_multiple.i'
#    input_files = '04_sub1_multiple.i  04_sub2_multiple.i 04_sub3_multiple.i'
#    output_in_position = true
  []
[]

(python/chigger/tests/input/mug_blocks.i)

[Mesh]
  type = FileMesh
  file = mug.e
[]

[MeshModifiers]
  [./subdomains]
    type = SubdomainBoundingBox
    top_right = '3 3 3'
    bottom_left = '0 -3 -2.1'
    block_id = '76'
  [../]
[]

[Variables]
  [./convected]
    order = FIRST
    family = LAGRANGE
  [../]
  [./diffused]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./aux_elem]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff_convected]
    type = Diffusion
    variable = convected
  [../]
  [./conv]
    # Couple a variable into the convection kernel using local_name = simulationg_name syntax
    type = Convection
    variable = convected
    velocity = '1 1 1'
  [../]
  [./diff_diffused]
    type = Diffusion
    variable = diffused
  [../]
  [./diff_t]
    type = TimeDerivative
    variable = diffused
  [../]
  [./conv_t]
    type = TimeDerivative
    variable = convected
    block = '76'
  [../]
[]

[BCs]
  [./bottom_convected]
    type = DirichletBC
    variable = convected
    boundary = bottom
    value = 1
  [../]
  [./top_convected]
    type = DirichletBC
    variable = convected
    boundary = top
    value = 0
  [../]
  [./bottom_diffused]
    type = DirichletBC
    variable = diffused
    boundary = bottom
    value = 2
  [../]
  [./top_diffused]
    type = DirichletBC
    variable = diffused
    boundary = top
    value = 0
  [../]
[]

[Postprocessors]
  [./func_pp]
    type = FunctionValuePostprocessor
    function = 2*t
  [../]
[]

[Executioner]
  # Preconditioned JFNK (default)
  type = Transient
  num_steps = 20
  solve_type = PJFNK
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

[ICs]
  [./aux_ic]
    variable = aux_elem
    max = 10
    seed = 2
    type = RandomIC
  [../]
[]

(test/tests/multiapps/move/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = sub.i
    output_in_position = true
    move_time = 0.05
    move_positions = '2 2 0'
    move_apps = 0
  [../]
[]

(test/tests/materials/stateful_coupling/stateful_coupling.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]

  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 'left'
    value = 1
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 'right'
    value = 2
  [../]
[]

[Materials]
  # This material couples in a stateful property from StatefulTest
  [./coupled_mat]
    type = CoupledMaterial
    mat_prop = 'some_prop'
    coupled_mat_prop = 'thermal_conductivity'
    use_old_prop = true
  [../]

  [./stateful_mat]
    type = StatefulTest
    prop_names = thermal_conductivity
    prop_values = 1.0
    output_properties = thermal_conductivity
    outputs = exodus
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  num_steps = 4
[]

[Outputs]
  exodus = true
[]

[Debug]
  show_material_props = true
[]

(test/tests/multiapps/slow_sub/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Problem]
  solve = false
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [pg]
    type = PerfGraphOutput
    level = 3
  []
[]

[MultiApps]
  [really_slow]
    type = TransientMultiApp
    app_type = MooseTestApp
    input_files = 'sub.i'
    positions = '0   0   0'
  []
[]

(modules/combined/test/tests/elastic_patch/elastic_patch_rz_nonlinear.i)

#
# This problem is taken from the Abaqus verification manual:
#   "1.5.4 Patch test for axisymmetric elements"
# The stress solution is given as:
#   xx = yy = zz = 19900
#   xy = 0
#
# If strain = log(1+1e-2) = 0.00995033...
# then
# stress = E/(1+PR)/(1-2*PR)*(1-PR +PR +PR)*strain = 19900.6617
# with E = 1e6 and PR = 0.25.
#
# The code computes stress = 19900.6617 when
# increment_calculation = eigen.  There is a small error when the
# rashidapprox option is used.
#
# Since the strain is 1e-3 in all three directions, the new density should be
#   new_density = original_density * V_0 / V
#   new_density = 0.283 / (1 + 9.95e-3 + 9.95e-3 + 9,95e-3) = 0.2747973
#
# The code computes a new density of .2746770


[GlobalParams]
  displacements = 'disp_x disp_y'
  temperature = temp
[]

[Problem]
  coord_type = RZ
[]

[Mesh]
  file = elastic_patch_rz.e
[]

[Variables]
  [temp]
    initial_condition = 117.56
  []
[]

[Physics/SolidMechanics/QuasiStatic/All]
  strain = FINITE
  decomposition_method = EigenSolution
  add_variables = true
  generate_output = 'stress_xx stress_yy stress_zz stress_xy stress_yz stress_zx'
[]

[Kernels]
  [heat]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [ur]
    type = FunctionDirichletBC
    variable = disp_x
    preset = false
    boundary = 10
    function = '1e-2*x'
  []
  [uz]
    type = FunctionDirichletBC
    variable = disp_y
    preset = false
    boundary = 10
    function = '1e-2*y'
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 1e6
    poissons_ratio = 0.25
  []
  [stress]
    type = ComputeFiniteStrainElasticStress
  []

  [density]
    type = Density
    density = 0.283
    outputs = all
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton

  end_time = 1.0
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/move_and_reset/multilevel_sub_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/05_sub_parallel.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 40
  ny = 40
  nz = 40
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/restart/restart_transient_from_steady/restart_trans_with_2subs.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = 'replicated'
[]

[Problem]
  restart_file_base = steady_with_2subs_out_cp/LATEST
[]

[AuxVariables]
  [Tf]
  []
[]

[Variables]
  [power_density]
  []
[]

[Functions]
  [pwr_func]
    type = ParsedFunction
    expression = '1e3*x*(1-x)+5e2' # increase this function to drive transient
  []
[]

[Kernels]
  [timedt]
    type = TimeDerivative
    variable = power_density
  []

  [diff]
    type = Diffusion
    variable = power_density
  []

  [coupledforce]
    type = BodyForce
    variable = power_density
    function = pwr_func
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = power_density
    boundary = left
    value = 50
  []
  [right]
    type = DirichletBC
    variable = power_density
    boundary = right
    value = 1e3
  []
[]

[Postprocessors]
  [pwr_avg]
    type = ElementAverageValue
    block = '0'
    variable = power_density
    execute_on = 'initial timestep_end'
  []
  [temp_avg]
    type = ElementAverageValue
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [temp_max]
    type = ElementExtremeValue
    value_type = max
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [temp_min]
    type = ElementExtremeValue
    value_type = min
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 3
  dt = 1.0

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  nl_abs_tol = 1e-8
  nl_rel_tol = 1e-7

  fixed_point_rel_tol = 1e-7
  fixed_point_abs_tol = 1e-07
  fixed_point_max_its = 4

  line_search = none
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0   0 0
                 0.5 0 0'
    input_files  = restart_trans_with_sub_sub.i
    execute_on = 'timestep_end'
  [../]
[]

[Transfers]
  [p_to_sub]
    type = MultiAppProjectionTransfer
    source_variable = power_density
    variable = power_density
    to_multi_app = sub
    execute_on = 'timestep_end'
  []
  [t_from_sub]
    type = MultiAppGeometricInterpolationTransfer
    source_variable = temp
    variable = Tf
    from_multi_app = sub
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(modules/solid_mechanics/test/tests/power_law_creep/power_law_creep.i)

# 1x1x1 unit cube with uniform pressure on top face

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [temp]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1000.0
  []
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = FINITE
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
  []
[]

[Functions]
  [top_pull]
    type = PiecewiseLinear
    x = '0 1'
    y = '1 1'
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = Pressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
    function = top_pull
  []
  [u_bottom_fix]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = DirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
  []
  [radial_return_stress]
    type = ComputeMultipleInelasticStress
    inelastic_models = 'power_law_creep'
    tangent_operator = elastic
  []
  [power_law_creep]
    type = PowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.0
  end_time = 1.0
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  exodus = true
[]

(tutorials/tutorial02_multiapps/step01_multiapps/04_sub3_multiple.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 3
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/move_and_reset/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/functions/piecewise_multilinear/except2.i)

# PiecewiseMultilinear function exception test
# Grid is not monotonic

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 1
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./f]
  [../]
[]

[AuxKernels]
  [./f_auxK]
    type = FunctionAux
    variable = f
    function = except1_fcn
  [../]
[]


[Functions]
  [./except1_fcn]
    type = PiecewiseMultilinear
    data_file = except2.txt
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  hide = dummy
[]

(test/tests/multiapps/application_block_multiapps/application_block_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = application_block_sub.i
    output_in_position = true
    move_time = 0.05
    move_positions = '2 2 0'
    move_apps = 0
  []
[]

(modules/phase_field/test/tests/PolynomialFreeEnergy/direct_order6_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
  xmax = 125
[]

[GlobalParams]
  polynomial_order = 6
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c_IC]
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 60.0
    invalue = 1.0
    outvalue = 0.1
    int_width = 60.0
    variable = c
  [../]
[]

[Kernels]
  [./local_energy]
    type = CahnHilliard
    variable = c
    f_name = F
  [../]
  [./gradient_energy]
    type = CHInterface
    variable = c
    mob_name = M
    kappa_name = kappa
  [../]
  [./cdot]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./Copper]
    type = PFParamsPolyFreeEnergy
    c = c
    T = 1000 # K
    int_width = 30.0
    length_scale = 1.0e-9
    time_scale = 1.0e-9
    D0 = 3.1e-5 # m^2/s, from Brown1980
    Em = 0.71 # in eV, from Balluffi1978 Table 2
    Ef = 1.28 # in eV, from Balluffi1978 Table 2
    surface_energy = 0.7 # Total guess
  [../]
  [./free_energy]
    type = PolynomialFreeEnergy
    c = c
    derivative_order = 2
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = -pc_type
  petsc_options_value = lu

  l_max_its = 30
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8

  start_time = 0.0
  num_steps = 100
  dt = 4
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/move_and_reset/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = sub.i
    reset_apps = 0
    reset_time = 0.05
    move_time = 0.05
    move_positions = '2 2 0'
    move_apps = 0
    output_in_position = true
  [../]
[]

(test/tests/multiapps/picard_multilevel/multilevel_dt_rejection/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[AuxKernels]
  [set_v]
    type = FunctionAux
    variable = v
    function = 't'
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [coupled_force]
    type = CoupledForce
    variable = u
    v = v
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  num_steps = 2
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 1
  auto_advance = false
[]

[MultiApps]
  [sub1]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = picard_sub.i
    execute_on = 'timestep_end'
  []
[]

[Transfers]
  [u_to_v2]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub1
    source_variable = u
    variable = v2
  []
  [time_to_sub]
    type = MultiAppPostprocessorTransfer
    from_postprocessor = time
    to_postprocessor = parent_time
    to_multi_app = sub1
  []
  [dt_to_sub]
    type = MultiAppPostprocessorTransfer
    from_postprocessor = dt
    to_postprocessor = parent_dt
    to_multi_app = sub1
  []
[]

[Postprocessors]
  [time]
    type = TimePostprocessor
    execute_on = 'timestep_end'
  []
  [dt]
    type = TimestepSize
    execute_on = 'timestep_end'
  []
[]

(modules/combined/test/tests/DiffuseCreep/variable_base_eigen_strain.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 2
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = FunctionIC
      function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);0.1+0.01*v'
    [../]
  [../]
  [./mu]
  [../]
  [./disp_x]
  [../]
  [./disp_y]
  [../]
[]

[AuxVariables]
  [./gb]
    family = LAGRANGE
    order  = FIRST
  [../]
  [./eigen_strain_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./eigen_strain_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
[]

[Kernels]
  [./conc]
    type = CHSplitConcentration
    variable = c
    mobility = mobility_prop
    chemical_potential_var = mu
  [../]
  [./chempot]
    type = CHSplitChemicalPotential
    variable = mu
    chemical_potential_prop = mu_prop
    c = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
  [./TensorMechanics]
    displacements = 'disp_x disp_y'
  [../]
[]

[AuxKernels]
  [./gb]
    type = FunctionAux
    variable = gb
    function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);v'
  [../]
  [./eigenstrain_xx]
    type = RankTwoAux
    variable = eigen_strain_xx
    rank_two_tensor = eigenstrain
    index_i = 0
    index_j = 0
  [../]
  [./eigenstrain_yy]
    type = RankTwoAux
    variable = eigen_strain_yy
    rank_two_tensor = eigenstrain
    index_i = 1
    index_j = 1
  [../]
  [./stress_xx]
    type = RankTwoAux
    variable = stress_xx
    rank_two_tensor = stress
    index_i = 0
    index_j = 0
  [../]
  [./stress_yy]
    type = RankTwoAux
    variable = stress_yy
    rank_two_tensor = stress
    index_i = 1
    index_j = 1
  [../]
[]

[Materials]
  [./chemical_potential]
    type = DerivativeParsedMaterial
    block = 0
    property_name = mu_prop
    coupled_variables = c
    expression = 'c'
    derivative_order = 1
  [../]
  [./var_dependence]
    type = DerivativeParsedMaterial
    block = 0
    expression = 'c*(1.0-c)'
    coupled_variables = c
    property_name = var_dep
    derivative_order = 1
  [../]
  [./mobility]
    type = CompositeMobilityTensor
    block = 0
    M_name = mobility_prop
    tensors = diffusivity
    weights = var_dep
    args = c
  [../]
  [./phase_normal]
    type = PhaseNormalTensor
    phase = gb
    normal_tensor_name = gb_normal
  [../]
  [./aniso_tensor]
    type = GBDependentAnisotropicTensor
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = aniso_tensor
  [../]
  [./diffusivity]
    type = GBDependentDiffusivity
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = diffusivity
  [../]
  [./eigenstrain_prefactor]
    type = DerivativeParsedMaterial
    block = 0
    expression = 'c-0.1'
    coupled_variables = c
    property_name = eigenstrain_prefactor
    derivative_order = 1
  [../]
  [./eigenstrain]
    type = ComputeVariableBaseEigenStrain
    base_tensor_property_name = aniso_tensor
    prefactor = eigenstrain_prefactor
    eigenstrain_name = eigenstrain
  [../]
  [./strain]
    type = ComputeIncrementalStrain
    displacements = 'disp_x disp_y'
    eigenstrain_names = eigenstrain
  [../]
  [./stress]
    type = ComputeStrainIncrementBasedStress
  [../]
  [./elasticity_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '120.0 80.0'
    fill_method = symmetric_isotropic
  [../]
[]

[BCs]
  [./Periodic]
    [./cbc]
      auto_direction = 'x y'
      variable = c
    [../]
  [../]
  [./fix_x]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0
  [../]
  [./fix_y]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK

  petsc_options_iname = '-pc_type -ksp_grmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  preonly       lu           1'

  nl_rel_tol = 1e-10
  nl_max_its = 5

  l_tol = 1e-4
  l_max_its = 20

  dt = 1
  num_steps = 5
[]

[Preconditioning]
  [./smp]
     type = SMP
     full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/transient_multiapp/dt_from_parent_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1 # This will be constrained by the parent solve

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/misc/check_error/scalar_dot_integrity_check.i)

# Test that coupling a time derivative of a scalar variable (ScalarDotCouplingAux) and
# using a Steady executioner errors out

[Mesh]
  type = GeneratedMesh
  dim = 2
[]

[Functions]
  [./a_fn]
    type = ParsedFunction
    expression = t
  [../]
[]

[AuxVariables]
  [./v]
  [../]

  [./a]
    family = SCALAR
    order = FIRST
  [../]
[]

[AuxScalarKernels]
  [./a_sak]
    type = FunctionScalarAux
    variable = a
    function = a_fn
  [../]
[]

[AuxKernels]
  [./ak_v]
    type = ScalarDotCouplingAux
    variable = v
    v = a
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Steady
[]

(test/tests/multiapps/restart/sub2.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 1
  nx = 10
[]

[Functions]
  [./u_fn]
    type = ParsedFunction
    expression = t*x
  [../]
  [./ffn]
    type = ParsedFunction
    expression = x
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./fn]
    type = BodyForce
    variable = u
    function = ffn
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = u_fn
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/iterative/iterative_csv.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./iterations]
     type = NumResidualEvaluations
     execute_on = linear
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = NEWTON
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
[]

[Outputs]
  execute_on = 'timestep_end'
  [./out]
    type = CSV
    nonlinear_residual_dt_divisor = 100
    linear_residual_dt_divisor = 100
    start_time = 1.8
    end_time = 1.85
    execute_on = 'nonlinear linear timestep_end'
  [../]
[]

(modules/stochastic_tools/test/tests/multiapps/sampler_transient_multiapp/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
    #    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_userobject_transfer/restricted_elem_sub.i)

# yy is passed in from the parent app

[Mesh]
  [line]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 4
    xmax = 2
  []
  [box]
    type = SubdomainBoundingBoxGenerator
    input = line
    bottom_left = '0 -0.1 -0.1'
    top_right = '1 0.1 0.1'
    # need a different block ID than what is in the parent app to make sure the transfer works properly
    block_id = 20
  []
[]

[AuxVariables]
  [A]
    family = MONOMIAL
    order = CONSTANT
  []

  [S]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [A_ak]
    type = ParsedAux
    variable = A
    use_xyzt = true
    expression = '2*x+4*${yy}'
    execute_on = 'TIMESTEP_BEGIN'
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[UserObjects]
  [A_avg]
    type = LayeredAverage
    block = 20
    num_layers = 2
    direction = x
    variable = A
    execute_on = TIMESTEP_END
  []
[]

[Executioner]
  type = Transient
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_postprocessor_interpolation_transfer/parent_quad.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./pp_aux]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./quad]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0.1 0.1 0 0.9 0.1 0 0.1 0.9 0 0.9 0.9 0'
    input_files = 'quad_sub1.i quad_sub1.i quad_sub2.i quad_sub2.i'
  [../]
[]

[Transfers]
  [./sub_to_parent_pp]
    type = MultiAppPostprocessorInterpolationTransfer
    from_multi_app = quad
    variable = pp_aux
    postprocessor = pp
  [../]
[]

(modules/level_set/examples/rotating_circle/circle_rotate_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 32
  ny = 32
  uniform_refine = 2
[]

[AuxVariables]
  [./velocity]
    family = LAGRANGE_VEC
  [../]
[]

[Variables]
  [./phi]
  [../]
[]

[BCs]
  [./all]
    type = DirichletBC
    variable = phi
    boundary = 'top bottom left right'
    value = 0
  [../]
[]

[Functions]
  [./phi_exact]
    type = LevelSetOlssonBubble
    epsilon = 0.03
    center = '0 0.5 0'
    radius = 0.15
  [../]
  [./velocity_func]
    type = ParsedVectorFunction
    expression_x = '4*y'
    expression_y = '-4*x'
  [../]
[]

[ICs]
  [./phi_ic]
    type = FunctionIC
    function = phi_exact
    variable = phi
  [../]
  [./vel_ic]
    type = VectorFunctionIC
    variable = velocity
    function = velocity_func
  []
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = phi
  [../]

  [./advection]
    type = LevelSetAdvection
    velocity = velocity
    variable = phi
  [../]
[]

[Postprocessors]
  [./area]
    type = LevelSetVolume
    threshold = 0.5
    variable = phi
    location = outside
    execute_on = 'initial timestep_end'
  [../]
  [./cfl]
    type = LevelSetCFLCondition
    velocity = velocity
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  start_time = 0
  end_time = 1.570796
  scheme = crank-nicolson
  petsc_options_iname = '-pc_type -pc_sub_type'
  petsc_options_value = 'asm      ilu'
  [./TimeStepper]
    type = PostprocessorDT
    postprocessor = cfl
    scale = 0.8
  [../]
[]

[MultiApps]
  [./reinit]
    type = LevelSetReinitializationMultiApp
    input_files = 'circle_rotate_sub.i'
    execute_on = 'timestep_end'
  [../]
[]

[Transfers]
  [./to_sub]
    type = MultiAppCopyTransfer
    source_variable = phi
    variable = phi
    to_multi_app = reinit
    execute_on = 'timestep_end'
  [../]
  [./to_sub_init]
    type = MultiAppCopyTransfer
    source_variable = phi
    variable = phi_0
    to_multi_app = reinit
    execute_on = 'timestep_end'
  [../]
  [./from_sub]
    type = MultiAppCopyTransfer
    source_variable = phi
    variable = phi
    from_multi_app = reinit
    execute_on = 'timestep_end'
  [../]
[]

[Outputs]
  csv = true
  exodus = true
[]

(modules/combined/examples/mortar/mortar_gradient.i)

#
# Compare a diffusion equation with (c) and without (v) periodic gradient
# constraints and a ramped sloped initial condition and value-periodic diffusion (p)
# without a slope.
#

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 40
    ny = 40
  []
  [secondary_x]
    input = gen
    type = LowerDBlockFromSidesetGenerator
    sidesets = '3'
    new_block_id = 10
    new_block_name = "secondary_x"
  []
  [primary_x]
    input = secondary_x
    type = LowerDBlockFromSidesetGenerator
    sidesets = '1'
    new_block_id = 12
    new_block_name = "primary_x"
  []
  [secondary_y]
    input = primary_x
    type = LowerDBlockFromSidesetGenerator
    sidesets = '0'
    new_block_id = 11
    new_block_name = "secondary_y"
  []
  [primary_y]
    input = secondary_y
    type = LowerDBlockFromSidesetGenerator
    sidesets = '2'
    new_block_id = 13
    new_block_name = "primary_y"
  []
[]

[Functions]
  [./init_slope]
    # slope with a concentration spike close to the lower interface
    type = ParsedFunction
    expression = 'if(x>0.4 & x<0.6 & y>0.1 & y<0.3, 3+y, y)'
  [../]
  [./init_flat]
    # no-slope and the same spike
    type = ParsedFunction
    expression = 'if(x>0.4 & x<0.6 & y>0.1 & y<0.3, 3, 0)'
  [../]
[]

[Variables]
  # gradient constrained concentration
  [./c]
    order = FIRST
    family = LAGRANGE
    block = 0
    [./InitialCondition]
      type = FunctionIC
      function = init_slope
    [../]
  [../]

  # unconstrained concentrarion
  [./v]
    order = FIRST
    family = LAGRANGE
    block = 0
    [./InitialCondition]
      type = FunctionIC
      function = init_slope
    [../]
  [../]

  # flat value periodic diffusion
  [./p]
    order = FIRST
    family = LAGRANGE
    block = 0
    [./InitialCondition]
      type = FunctionIC
      function = init_flat
    [../]
  [../]

  # Lagrange multipliers for gradient component in the horizontal directon
  [./lm_left_right_x]
    order = FIRST
    family = LAGRANGE
    block = "secondary_x"
  [../]
  [./lm_left_right_y]
    order = FIRST
    family = LAGRANGE
    block = "secondary_x"
  [../]

  # Lagrange multipliers for gradient component in the vertical directon
  [./lm_up_down_x]
    order = FIRST
    family = LAGRANGE
    block = "secondary_y"
  [../]
  [./lm_up_down_y]
    order = FIRST
    family = LAGRANGE
    block = "secondary_y"
  [../]
[]

[Kernels]
  # the gradient constrained concentration
  [./diff]
    type = Diffusion
    variable = c
    block = 0
  [../]
  [./dt]
    type = TimeDerivative
    variable = c
    block = 0
  [../]

  # the un-constrained concentration
  [./diff2]
    type = Diffusion
    variable = v
    block = 0
  [../]
  [./dt2]
    type = TimeDerivative
    variable = v
    block = 0
  [../]

  # the value periodic concentration
  [./diff3]
    type = Diffusion
    variable = p
    block = 0
  [../]
  [./dt3]
    type = TimeDerivative
    variable = p
    block = 0
  [../]
[]

[Constraints]
  [./equaly_grad_x]
    type = EqualGradientConstraint
    variable = lm_up_down_x
    component = 0
    secondary_variable = c
    secondary_boundary = bottom
    primary_boundary = top
    secondary_subdomain = secondary_y
    primary_subdomain = primary_y
    periodic = true
  [../]
  [./equaly_grad_y]
    type = EqualGradientConstraint
    variable = lm_up_down_y
    component = 1
    secondary_variable = c
    secondary_boundary = bottom
    primary_boundary = top
    secondary_subdomain = secondary_y
    primary_subdomain = primary_y
    periodic = true
  [../]

  [./equalx_grad_x]
    type = EqualGradientConstraint
    variable = lm_left_right_x
    component = 0
    secondary_variable = c
    secondary_boundary = left
    primary_boundary = right
    secondary_subdomain = secondary_x
    primary_subdomain = primary_x
    periodic = true
  [../]
  [./equalx_grad_y]
    type = EqualGradientConstraint
    variable = lm_left_right_y
    component = 1
    secondary_variable = c
    secondary_boundary = left
    primary_boundary = right
    secondary_subdomain = secondary_x
    primary_subdomain = primary_x
    periodic = true
  [../]
[]

[BCs]
  # DiffusionFluxBC is the surface term in the weak form of the Diffusion equation
  [./surface]
    type = DiffusionFluxBC
    boundary = 'top bottom left right'
    variable = c
  [../]
  [./surface2]
    type = DiffusionFluxBC
    boundary = 'top bottom left right'
    variable = v
  [../]

  # for the value periodic diffusion we skip the surface term and apply value PBCs
  [./Periodic]
    [./up_down]
      variable = p
      primary = 0
      secondary = 2
      translation = '0 1 0'
    [../]
    [./left_right]
      variable = p
      primary = 1
      secondary = 3
      translation = '-1 0 0'
    [../]
  [../]
[]

[AuxVariables]
  [./diff_constraint]
    block = 0
  [../]
  [./diff_periodic]
    block = 0
  [../]
  [./diff_slope]
    block = 0
  [../]
  [./slope]
    block = 0
    [./InitialCondition]
      type = FunctionIC
      function = y
    [../]
  [../]
[]

[AuxKernels]
  # difference between the constrained and unconstrained sloped diffusions
  [./diff_constraint]
    type = ParsedAux
    variable = diff_constraint
    expression = 'c-v'
    coupled_variables = 'c v'
    block = 0
  [../]

  # difference between the periodic gradient constrained diffusion and the flat
  # value period diffusien with a constant slope added. This should be the same,
  # but they aren't quite because the gradient constraint affects the gradient in
  # the entire elements (i.e. a larger volume is affected by the gradient constraint
  # compared to the nodal value periodicity)
  [./diff_periodic]
    type = ParsedAux
    variable = diff_periodic
    expression = 'c-p-slope'
    coupled_variables = 'c p slope'
    block = 0
  [../]

  # subtract the constant slope from the gradient periodic simulation (should yield
  # almost p - per the argument above)
  [./diff_slope]
    type = ParsedAux
    variable = diff_slope
    expression = 'c-slope'
    coupled_variables = 'c slope'
    block = 0
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON

  # the shift is necessary to facilitate the solve. The Lagrange multipliers
  # introduce zero-on diaginal blocks, which make the matrix hard to invert.
  petsc_options_iname = '-pc_type -pc_factor_shift_type -pc_factor_shift_amount'
  petsc_options_value = ' lu       NONZERO               1e-10'

  nl_rel_tol = 1e-11
  nl_abs_tol = 1e-10
  l_tol = 1e-10
  dt = 0.01
  num_steps = 20
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/rk-2/2d-quadratic.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 20
  ny = 20
  elem_type = QUAD9
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 2*t*((x*x)+(y*y))-(4*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*((x*x)+(y*y))
  [../]
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  [./TimeIntegrator]
    type = ExplicitMidpoint
  [../]
  solve_type = 'LINEAR'

  start_time = 0.0
  num_steps = 10
  dt = 0.0001
  l_tol = 1e-8
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(test/tests/functions/piecewise_multilinear/oneDb.i)

# PiecewiseMultilinear function tests in 1D
# See [Functions] block for a description of the tests
# The functions are compared with ParsedFunctions using postprocessors

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 10
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./linear1_var]
  [../]
  [./linear2_var]
  [../]
[]

[AuxKernels]
  [./linear1_AuxK]
    type = FunctionAux
    variable = linear1_var
    function = linear1_fcn
  [../]
  [./linear2_AuxK]
    type = FunctionAux
    variable = linear2_var
    function = linear2_fcn
  [../]
[]


[Functions]
# This is just f = x
  [./linear1_fcn]
    type = PiecewiseMultilinear
    data_file = linear1.txt
  [../]
  [./linear1_answer]
    type = ParsedFunction
    expression = x
  [../]

# This is a hat function
  [./linear2_fcn]
    type = PiecewiseMultilinear
    data_file = linear2.txt
  [../]
  [./linear2_answer]
    type = ParsedFunction
    expression = min(x,1)+min(2-x,1)-1
  [../]

[]

[Postprocessors]
  [./linear1_pp]
    type = NodalL2Error
    function = linear1_answer
    variable = linear1_var
  [../]
  [./linear2_pp]
    type = NodalL2Error
    function = linear2_answer
    variable = linear2_var
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = oneDb
  hide = dummy
  csv = true
[]

(modules/porous_flow/examples/multiapp_fracture_flow/fracture_diffusion/matrix_app_dirac.i)

# A fracture, which is a 1D line of elements, is embedded in a matrix, which is a 2D surface of elements.
# The meshes conform: all fracture nodes are also matrix nodes (the fracture elements are sides of matrix elements).
#
# The heat equation governs temperature in the fracture and matrix system, and heat energy is transferred between the two using a MultiApp approach
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 20
    xmin = 0
    xmax = 10.0
    ny = 20 # anything less than this produces over/under-shoots
    ymin = -2
    ymax = 2
  []
[]

[Variables]
  [matrix_T]
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = matrix_T
  []
  [matrix_diffusion]
    type = AnisotropicDiffusion
    variable = matrix_T
    tensor_coeff = '1E-3 0 0 0 1E-3 0 0 0 1E-3'
  []
[]

[DiracKernels]
  [heat_from_fracture]
    type = ReporterPointSource
    variable = matrix_T
    value_name = heat_transfer_rate/transferred_joules_per_s
    x_coord_name = heat_transfer_rate/x
    y_coord_name = heat_transfer_rate/y
    z_coord_name = heat_transfer_rate/z
  []
[]

[VectorPostprocessors]
  [heat_transfer_rate]
    type = ConstantVectorPostprocessor
    vector_names = 'transferred_joules_per_s x y z'
    value = '0; 0; 0; 0'
    outputs = none
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
  nl_rel_tol = 1e-8
  petsc_options_iname = '-pc_type  -pc_factor_mat_solver_package'
  petsc_options_value = 'lu        superlu_dist'
[]


[Outputs]
  print_linear_residuals = false
  exodus = false
  csv=true
[]

[MultiApps]
  [fracture_app]
    type = TransientMultiApp
    input_files = fracture_app_dirac.i
    execute_on = TIMESTEP_BEGIN
  []
[]

[Transfers]
  [T_to_fracture]
    type = MultiAppGeometricInterpolationTransfer
    to_multi_app = fracture_app
    source_variable = matrix_T
    variable = transferred_matrix_T
  []
  [heat_from_fracture]
    type = MultiAppReporterTransfer
    from_multi_app = fracture_app
    from_reporters = 'heat_transfer_rate/joules_per_s heat_transfer_rate/x heat_transfer_rate/y heat_transfer_rate/z'
    to_reporters = 'heat_transfer_rate/transferred_joules_per_s heat_transfer_rate/x heat_transfer_rate/y heat_transfer_rate/z'
  []
[]

(test/tests/userobjects/shape_element_user_object/jacobian_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 2
  parallel_type = replicated
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = (x-0.5)^2
    [../]
  [../]
  [./v]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = (x-0.5)^2
    [../]
  [../]
  [./w]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = (x-0.5)^2
    [../]
  [../]
[]

[Kernels]
  [./diff_u]
    type = Diffusion
    variable = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./shape_w]
    type = ExampleShapeElementKernel2
    user_object = example_uo
    v = v
    u = u
    variable = w
  [../]
  [./time_w]
    type = TimeDerivative
    variable = w
  [../]
  [./time_u]
    type = TimeDerivative
    variable = u
  [../]
  [./time_v]
    type = TimeDerivative
    variable = v
  [../]
[]

[UserObjects]
  [./example_uo]
    type = ExampleShapeElementUserObject
    u = u
    v = v
    # as this userobject computes quantities for both the residual AND the jacobian
    # it needs to have these execute_on flags set.
    execute_on = 'linear nonlinear'
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
    #off_diag_row =    'w w'
    #off_diag_column = 'v u'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  petsc_options = '-snes_test_display'
  petsc_options_iname = '-snes_type'
  petsc_options_value = 'test'
  dt = 0.1
  num_steps = 2
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(modules/combined/test/tests/chemical_reactions_richards/langmuir_jac3.i)

# testing whether when we have a centre block containing 'conc' which is a CONSTANT MONOMIAL, and two-phase Richards flow, we get the correct Jacobian
[Mesh]
  type = FileMesh
  file = three_eles.e
[]

[GlobalParams]
  richardsVarNames_UO = PPNames
  density_UO = 'DensityWater DensityGas'
  relperm_UO = 'RelPermWater RelPermGas'
  SUPG_UO = 'SUPGstandard SUPGstandard'
  sat_UO = 'Saturation Saturation'
  seff_UO = 'SeffWater SeffGas'
  viscosity = '1E-3 1.1E-5'
  gravity = '0 0 -10'
  linear_shape_fcns = true
[]

[UserObjects]
  [./PPNames]
    type = RichardsVarNames
    richards_vars = 'pwater pgas'
  [../]
  [./DensityWater]
    type = RichardsDensityConstBulk
    dens0 = 1000
    bulk_mod = 2E9
  [../]
  [./DensityGas]
    type = RichardsDensityMethane20degC
  [../]
  [./SeffWater]
    type = RichardsSeff2waterVG
    m = 0.8
    al = 1E-5
  [../]
  [./SeffGas]
    type = RichardsSeff2gasVG
    m = 0.8
    al = 1E-5
  [../]
  [./RelPermWater]
    type = RichardsRelPermPower
    simm = 0.2
    n = 3
  [../]
  [./RelPermGas]
    type = RichardsRelPermPower
    simm = 0.0
    n = 3
  [../]
  [./Saturation]
    type = RichardsSat
    s_res = 0.0
    sum_s_res = 0.0
  [../]
  [./SUPGstandard]
    type = RichardsSUPGstandard
    p_SUPG = 1.0E+1
  [../]
[]

[Variables]
  [./pwater]
  [../]
  [./pgas]
  [../]
  [./conc]
    family = MONOMIAL
    order = CONSTANT
    block = centre_block
  [../]
[]

[ICs]
  [./water]
    type = ConstantIC
    variable = pwater
    value = 0.0
  [../]
  [./gas]
    type = RandomIC
    variable = pgas
    min = 0
    max = 5E5
  [../]
  [./conc_ic]
    type = RandomIC
    variable = conc
    min = 0
    max = 20
    block = centre_block
  [../]
[]


[Kernels]
  [./richardstwater]
    type = RichardsMassChange
    variable = pwater
  [../]
  [./richardsfwater]
    type = RichardsFlux
    variable = pwater
  [../]
  [./richardstgas]
    type = RichardsMassChange
    variable = pgas
  [../]
  [./richardsfgas]
    type = RichardsFlux
    variable = pgas
  [../]
  [./c_dot]
    type = TimeDerivative
    block = centre_block
    variable = conc
  [../]
  [./flow_from_matrix]
    type = DesorptionFromMatrix
    block = centre_block
    variable = conc
    pressure_var = pgas
  [../]
  [./flux_to_porespace]
    type = DesorptionToPorespace
    block = centre_block
    variable = pgas
    conc_var = conc
  [../]
[]

[Materials]
  [./all_blocks]
    type = RichardsMaterial
    block = 'left_block centre_block right_block'
    mat_porosity = 0.02
    mat_permeability = '1E-15 0 0  0 1E-15 0  0 0 1E-16'
  [../]
  [./langmuir_params]
    type = LangmuirMaterial
    block = centre_block
    one_over_desorption_time_const = 0.813
    one_over_adsorption_time_const = 0.813
    langmuir_density = 20.0
    langmuir_pressure = 1.5E6
    pressure_var = pgas
    conc_var = conc
  [../]
[]


[Preconditioning]
  [./andy]
    type = SMP
    full = true
    #petsc_options = '-snes_test_display'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1E3 # get rid of the large c_dot contribution
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = langmuir_jac3
[]

(test/tests/restart/duplicate_node/duplicate_node.i)

[Mesh]
  type = FileMesh
  # Contains multiple nodes in the same positions
  file = duplicate_nodes.e
  dim = 2
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./top]
    type = DirichletBC
    variable = u
    boundary = top
    value = 1
  [../]
  [./bottom]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/stochastic_tools/test/tests/multiapps/dynamic_sub_app_number_error_with_transient/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
    #    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(modules/chemical_reactions/test/tests/desorption/langmuir_desorption.i)

# testing the entire desorption DEs
[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 1
  xmin = 0
  xmax = 1
[]

[Variables]
  [./pressure]
  [../]
  [./conc]
    family = MONOMIAL
    order = CONSTANT
  [../]
[]

[ICs]
  [./p_ic]
    type = ConstantIC
    variable = pressure
    value = 1.0
  [../]
  [./conc_ic]
    type = ConstantIC
    variable = conc
    value = 1.0
  [../]
[]


[Kernels]
  [./c_dot]
    type = TimeDerivative
    variable = conc
  [../]
  [./flow_from_matrix]
    type = DesorptionFromMatrix
    variable = conc
    pressure_var = pressure
  [../]
  [./rho_dot]
    type = TimeDerivative
    variable = pressure
  [../]
  [./flux_to_porespace]
    type = DesorptionToPorespace
    variable = pressure
    conc_var = conc
  [../]
[]

[Postprocessors]
  [./mass_rho]
    type = ElementIntegralVariablePostprocessor
    block = 0
    variable = pressure
    execute_on = 'initial timestep_end'
  [../]
  [./mass_conc]
    type = ElementIntegralVariablePostprocessor
    block = 0
    variable = conc
    execute_on = 'initial timestep_end'
  [../]
  [./mass_tot]
    type = FunctionValuePostprocessor
    function = mass_fcn
    execute_on = 'initial timestep_end'
  [../]
  [./p0]
    type = PointValue
    variable = pressure
    point = '0 0 0'
    execute_on = 'initial timestep_end'
  [../]
  [./c0]
    type = PointValue
    variable = conc
    point = '0 0 0'
    execute_on = 'initial timestep_end'
  [../]
[]

[Functions]
  [./mass_fcn]
    type = ParsedFunction
    expression = a+b
    symbol_names = 'a b'
    symbol_values = 'mass_rho mass_conc'
  [../]
[]

[Materials]
  [./lang_stuff]
    type = LangmuirMaterial
    block = 0
    one_over_desorption_time_const = 0.90909091
    one_over_adsorption_time_const = 0.90909091
    langmuir_density = 0.88
    langmuir_pressure = 1.23
    pressure_var = pressure
    conc_var = conc
  [../]
[]


[Preconditioning]
  [./andy]
    type = SMP
    full = true
    #petsc_options = '-snes_test_display'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 0.01
  end_time = 2
[]
[Outputs]
  file_base = langmuir_desorption
  time_step_interval = 10
  csv = 10
[] # Outputs

(test/tests/multiapps/check_error/check_error.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[MultiApps]
  [./multi]
    type = TransientMultiApp
    app_type = MooseTestApp
  [../]
[]

(modules/porous_flow/examples/multiapp_fracture_flow/diffusion_multiapp/two_vars.i)

# Heat transfer between matrix and fracture, with the matrix and fracture being identical spatial domains, but a multiapp approach is not used
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 100
    xmin = 0
    xmax = 50.0
  []
[]

[Variables]
  [frac_T]
  []
  [matrix_T]
  []
[]

[ICs]
  [frac_T]
    type = FunctionIC
    variable = frac_T
    function = 'if(x<0.5, 2, 0)'  # delta function
  []
[]

[Kernels]
  [dot_frac]
    type = TimeDerivative
    variable = frac_T
  []
  [frac_diffusion]
    type = Diffusion
    variable = frac_T
  []
  [toMatrix]
    type = PorousFlowHeatMassTransfer
    variable = frac_T
    v = matrix_T
    transfer_coefficient = 0.004
  []
  [dot_matrix]
    type = TimeDerivative
    variable = matrix_T
  []
  [matrix_diffusion]
    type = Diffusion
    variable = matrix_T
  []
  [toFrac]
    type = PorousFlowHeatMassTransfer
    variable = matrix_T
    v = frac_T
    transfer_coefficient = 0.004
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]

[VectorPostprocessors]
  [final_results]
    type = LineValueSampler
    start_point = '0 0 0'
    end_point = '50 0 0'
    num_points = 11
    sort_by = x
    variable = 'frac_T matrix_T'
    outputs = final_csv
  []
[]

[Outputs]
  print_linear_residuals = false
  [final_csv]
    type = CSV
    sync_times = 100
    sync_only = true
  []
[]

(test/tests/bounds/old_value_bounds.i)

[Mesh]
  type = GeneratedMesh

  dim = 2

  xmin = 0
  xmax = 1

  ymin = 0
  ymax = 1

  nx = 10
  ny = 10
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []

  [v]
    order = FIRST
    family = LAGRANGE
  []
[]

[AuxVariables]
  [bounds_dummy]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [time_u]
    type = TimeDerivative
    variable = u
  []
  [diff_u]
    type = Diffusion
    variable = u
  []

  [time_v]
    type = TimeDerivative
    variable = v
  []
  [diff_v]
    type = Diffusion
    variable = v
  []
[]

[BCs]
  [left_u]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  []

  [right_u]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  []

  [left_v]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 0
  []

  [right_v]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 1
  []
[]

[Bounds]
  [u_upper_bound]
    type = ConstantBounds
    variable = bounds_dummy
    bounded_variable = u
    bound_type = upper
    bound_value = 1
  []
  [u_lower_bound]
    type = VariableOldValueBounds
    variable = bounds_dummy
    bounded_variable = u
    bound_type = lower
  []

  [v_upper_bound]
    type = ConstantBounds
    variable = bounds_dummy
    bounded_variable = v
    bound_type = upper
    bound_value = 3
  []
  [v_lower_bound]
    type = VariableOldValueBounds
    variable = bounds_dummy
    bounded_variable = v
    bound_type = lower
  []
[]

[Executioner]
  type = Transient
  num_steps = 2

  solve_type = 'PJFNK'
  petsc_options_iname = '-snes_type'
  petsc_options_value = 'vinewtonrsls'
[]

[Outputs]
  exodus = true
[]

(test/tests/controls/time_periods/kernels/kernels.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff0]
    type = CoefDiffusion
    variable = u
    coef = 0.05
  [../]
  [./diff1]
    type = CoefDiffusion
    variable = u
    coef = 0.5
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Controls]
  [./diff]
    type = TimePeriod
    enable_objects = 'Kernel::diff0'
    disable_objects = '*::diff1'
    start_time = '0'
    end_time = '0.49'
  [../]
[]

(modules/chemical_reactions/test/tests/desorption/langmuir_lumping_problem.i)

# exploring CONSTANT MONOMIAL
[Mesh]
  type = FileMesh
  file = three_eles.e
[]

[Variables]
  [./pressure]
    # try with and without the CONSTANT MONOMIAL to see that
    # CONSTANT MONOMIAL yields the correct result that pressure(x=0) is unchanged
    # but LINEAR LAGRANGE changes pressure(x=0) since pressure is not lumped at x=0
    # (the x=0 eqn is a*dot(p0)+b*dot(p10)=0, and x=10 eqn a*dot(p10)+b*dot(p20)=desorption,
    #  and since dot(p10)>0, we get dot(p0)<0)
    family = MONOMIAL
    order = CONSTANT
  [../]
  [./conc]
    family = MONOMIAL
    order = CONSTANT
    block = centre_block
  [../]
[]

[ICs]
  [./p_ic]
    type = ConstantIC
    variable = pressure
    value = 1.0
  [../]
  [./conc_ic]
    type = ConstantIC
    variable = conc
    value = 1.0
    block = centre_block
  [../]
[]


[Kernels]
  [./c_dot]
    type = TimeDerivative
    block = centre_block
    variable = conc
  [../]
  [./flow_from_matrix]
    type = DesorptionFromMatrix
    block = centre_block
    variable = conc
    pressure_var = pressure
  [../]
  [./rho_dot]
    type = TimeDerivative
    variable = pressure
  [../]
  [./flux_to_porespace]
    type = DesorptionToPorespace
    block = centre_block
    variable = pressure
    conc_var = conc
  [../]
[]

[Materials]
  [./rock]
    type = GenericConstantMaterial
    block = 'left_block centre_block right_block'
  [../]
  [./lang_stuff]
    type = LangmuirMaterial
    block = centre_block
    mat_desorption_time_const = 0.1
    mat_adsorption_time_const = 0.1
    mat_langmuir_density = 1
    mat_langmuir_pressure = 1
    pressure_var = pressure
  [../]
[]


[Preconditioning]
  [./andy]
    type = SMP
    full = true
    #petsc_options = '-snes_test_display'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = Newton
  end_time = 1
[]

[Outputs]
  file_base = langmuir_lumping_problem
[]

(tutorials/tutorial02_multiapps/step02_transfers/03_parent_uot.i)

[Mesh]
  type = GeneratedMesh
  dim = 3

  nx = 10
  ny = 10
  nz = 10

  zmax = 3
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v_average]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [front]
    type = DirichletBC
    variable = u
    boundary = front
    value = 0
  []
  [back]
    type = DirichletBC
    variable = u
    boundary = back
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[UserObjects]
  [layered_integral]
    type = NearestPointLayeredIntegral
    points = '0.15 0.15 0  0.45 0.45 0  0.75 0.75 0'
    direction = z
    num_layers = 4
    variable = u
  []
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions = '0.15 0.15 0  0.45 0.45 0  0.75 0.75 0'
    input_files = '03_sub_uot.i'
    execute_on = timestep_end
    output_in_position = true
  []
[]

[Transfers]
  [push_u]
    type = MultiAppUserObjectTransfer
    to_multi_app = sub_app
    variable = u_integral
    user_object = layered_integral
  []

  [pull_v]
    type = MultiAppUserObjectTransfer
    from_multi_app = sub_app
    variable = v_average
    user_object = layered_average
  []
[]

(modules/phase_field/test/tests/initial_conditions/polycrystalcircles_fromfile.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 100
  ny = 56
  nz = 0
  xmin = 0
  xmax = 200
  ymin = 0
  ymax = 112
  zmin = 0
  zmax = 0
[]

[GlobalParams]
  op_num = 6
  var_name_base = gr
[]

[Variables]
  [./PolycrystalVariables]
  [../]
[]

[UserObjects]
  [./circle_IC]
    type = PolycrystalCircles
    file_name = 'circles.txt'
    read_from_file = true
    execute_on = 'initial'
    threshold = 0.2
    connecting_threshold = 0.08
    int_width = 8
  [../]
[]

[ICs]
  [./PolycrystalICs]
    [./PolycrystalColoringIC]
      polycrystal_ic_uo = circle_IC
    [../]
  [../]
[]

[Kernels]
  [./dt_gr0]
    type = TimeDerivative
    variable = gr0
  [../]
  [./dt_gr1]
    type = TimeDerivative
    variable = gr1
  [../]
  [./dt_gr2]
    type = TimeDerivative
    variable = gr2
  [../]
  [./dt_gr3]
    type = TimeDerivative
    variable = gr3
  [../]
  [./dt_gr4]
    type = TimeDerivative
    variable = gr4
  [../]
  [./dt_gr5]
    type = TimeDerivative
    variable = gr5
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  num_steps = 0
[]

[Outputs]
  exodus = true
  csv = false
[]

(tutorials/tutorial02_multiapps/step03_coupling/01_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [vt]
  []
[]

[Kernels]
  [diff]
    type = MatDiffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Materials]
  [diff]
    type = ParsedMaterial
    property_name = D
    coupled_variables = 'vt'
    expression = 'vt'
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [micro]
    type = TransientMultiApp
    positions = '0.15 0.15 0  0.45 0.45 0  0.75 0.75 0'
    input_files = '01_sub.i'
    execute_on = timestep_end
    output_in_position = true
  []
[]

[Transfers]
  [push_u]
    type = MultiAppVariableValueSampleTransfer
    to_multi_app = micro
    source_variable = u
    variable = ut
  []

  [pull_v]
    type = MultiAppPostprocessorInterpolationTransfer
    from_multi_app = micro
    variable = vt
    postprocessor = average_v
  []
[]

(modules/combined/test/tests/CHSplitFlux/flux_gb.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 2
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = FunctionIC
      function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);0.1+0.1*v'
    [../]
  [../]
  [./mu]
  [../]
  [./jx]
  [../]
  [./jy]
  [../]
[]

[AuxVariables]
  [./gb]
    family = LAGRANGE
    order  = FIRST
  [../]
  [./mobility_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./mobility_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./diffusivity_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./diffusivity_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./aniso_tensor_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./aniso_tensor_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
[]

[Kernels]
  [./conc]
    type = CHSplitConcentration
    variable = c
    mobility = mobility_prop
    chemical_potential_var = mu
  [../]
  [./chempot]
    type = CHSplitChemicalPotential
    variable = mu
    chemical_potential_prop = mu_prop
    c = c
  [../]
  [./flux_x]
    type = CHSplitFlux
    variable = jx
    component = 0
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./flux_y]
    type = CHSplitFlux
    variable = jy
    component = 1
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[AuxKernels]
  [./gb]
    type = FunctionAux
    variable = gb
    function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);v'
  [../]
  [./mobility_xx]
    type = MaterialRealTensorValueAux
    variable = mobility_xx
    property = mobility_prop
    row = 0
    column = 0
  [../]
  [./mobility_yy]
    type = MaterialRealTensorValueAux
    variable = mobility_yy
    property = mobility_prop
    row = 1
    column = 1
  [../]
  [./diffusivity_xx]
    type = MaterialRealTensorValueAux
    variable = diffusivity_xx
    property = diffusivity
    row = 0
    column = 0
  [../]
  [./diffusivity_yy]
    type = MaterialRealTensorValueAux
    variable = diffusivity_yy
    property = diffusivity
    row = 1
    column = 1
  [../]
  [./aniso_tensor_xx]
    type = MaterialRealTensorValueAux
    variable = aniso_tensor_xx
    property = aniso_tensor
    row = 0
    column = 0
  [../]
  [./aniso_tensor_yy]
    type = MaterialRealTensorValueAux
    variable = aniso_tensor_yy
    property = aniso_tensor
    row = 1
    column = 1
  [../]
[]

[Materials]
  [./chemical_potential]
    type = DerivativeParsedMaterial
    block = 0
    property_name = mu_prop
    coupled_variables = c
    expression = 'c'
    derivative_order = 1
  [../]
  [./var_dependence]
    type = DerivativeParsedMaterial
    block = 0
    expression = 'c*(1.0-c)'
    coupled_variables = c
    property_name = var_dep
    derivative_order = 1
  [../]
  [./mobility]
    type = CompositeMobilityTensor
    block = 0
    M_name = mobility_prop
    tensors = diffusivity
    weights = var_dep
    args = c
  [../]
  [./phase_normal]
    type = PhaseNormalTensor
    phase = gb
    normal_tensor_name = gb_normal
  [../]
  [./aniso_tensor]
    type = GBDependentAnisotropicTensor
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = aniso_tensor
  [../]
  [./diffusivity]
    type = GBDependentDiffusivity
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = diffusivity
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK

  petsc_options_iname = '-pc_type -ksp_grmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  preonly       lu           1'

  nl_max_its = 5
  dt = 20
  num_steps = 5
[]

[Preconditioning]
  [./smp]
     type = SMP
     full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/initial_conditions/SmoothSuperellipsoidIC_3D.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 15
  ny = 15
  nz = 15
  xmax = 50
  ymax = 50
  zmax = 50
  elem_type = HEX8
[]

[Variables]
  [./c]
  [../]
[]

[ICs]
  [./c]
    type = SmoothSuperellipsoidIC
    variable = c
    x1 = 25.0
    y1 = 25.0
    z1 = 25.0
    a = 8
    b = 12
    c = 16
    n = 3.5
    invalue = 1.0
    outvalue = 0
    int_width = 4.0
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./Diffusion]
    type = MatDiffusion
    variable = c
  [../]
[]

[BCs]
  [./Periodic]
    [./All]
      auto_direction = 'x y z'
    [../]
  [../]
[]

[Materials]
  [./Diffusivity]
    type = GenericConstantMaterial
    prop_names = D
    prop_values = 1.0
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-5
  nl_max_its = 40
  nl_rel_tol = 5.0e-14

  start_time = 0.0
  num_steps = 1
  dt = 2.0
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/initial_conditions/BoundingBoxIC.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 2
  xmax = 50
  ymax = 25
  elem_type = QUAD4
  uniform_refine = 2
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c_IC]
    type = BoundingBoxIC
    x1 = 15.0
    x2 = 35.0
    y1 = 0.0
    y2 = 25.0
    inside = 1.0
    outside = -0.8
    variable = c
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 15
  nl_max_its = 10

  start_time = 0.0
  num_steps = 2
  dt = 1.0
[]

[Outputs]
  exodus = true
[]

(test/tests/vectorpostprocessors/time_data/time_data.i)

###############################################################
# The following tests that the CSV output object can include an
# additional .csv file that contains the time and timestep
# data from VectorPostprocessor object.
###############################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./v]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
  [./left_v]
    type = DirichletBC
    variable = v
    boundary = left
    value = 1
  [../]
  [./right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 0
  [../]
[]

[VectorPostprocessors]
  [./line_sample]
    type = LineValueSampler
    variable = 'u v'
    start_point = '0 0.5 0'
    end_point = '1 0.5 0'
    num_points = 11
    sort_by = id
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'initial timestep_end'
  [./out]
    type = CSV
    time_data = true
    time_step_interval = 2
  [../]
[]

(test/tests/multiapps/picard/function_dt_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 1
  nx = 10
[]

[Functions]
  [./u_fn]
    type = ParsedFunction
    expression = t*x
  [../]
  [./ffn]
    type = ParsedFunction
    expression = x
  [../]

  [./dts]
    type = PiecewiseLinear
    x = '0.1  10'
    y = '0.1  10'
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./fn]
    type = BodyForce
    variable = u
    function = ffn
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = u_fn
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  solve_type = 'PJFNK'

  nl_abs_tol = 1e-10
  start_time = 0
  num_steps = 3
  [./TimeStepper]
    type = FunctionDT
    function = dts
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/phase_field_kernels/nonuniform_barrier_coefficient.i)

# This material tests the kernels ACBarrierFunction and ACKappaFunction for a
# multiphase system.

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
  xmin = -200
  xmax = 200
  ymin = -200
  ymax = 200
  uniform_refine = 0
[]

[Variables]
  [./gr0]
  [../]
  [./gr1]
  [../]
[]

[ICs]
  [./gr0_IC]
    type = BoundingBoxIC
    variable = gr0
    x1 = -80
    y1 = -80
    x2 = 80
    y2 = 80
    inside = 0
    outside = 1
  [../]
  [./gr1_IC]
    type = BoundingBoxIC
    variable = gr1
    x1 = -80
    y1 = -80
    x2 = 80
    y2 = 80
    inside = 1
    outside = 0
  [../]
[]

[Materials]
  [./constants]
    type = GenericConstantMaterial
    prop_names =  'L   gamma E0 E1'
    prop_values = '0.1 1.5   3  1'
  [../]
  [./h0]
    type = DerivativeParsedMaterial
    property_name = h0
    coupled_variables = 'gr0 gr1'
    expression = 'gr0^2 / (gr0^2 + gr1^2)'
    derivative_order = 2
  [../]
  [./h1]
    type = DerivativeParsedMaterial
    property_name = h1
    coupled_variables = 'gr0 gr1'
    expression = 'gr1^2 / (gr0^2 + gr1^2)'
    derivative_order = 2
  [../]
  [./mu]
    type = DerivativeParsedMaterial
    property_name = mu
    coupled_variables = 'gr0 gr1'
    constant_names = 'mag'
    constant_expressions = '16'
    expression = 'mag * (gr0^2 * gr1^2 + 0.1)'
    derivative_order = 2
  [../]
  [./kappa]
    type = DerivativeParsedMaterial
    property_name = kappa
    coupled_variables = 'gr0 gr1'
    material_property_names = 'h0(gr0,gr1) h1(gr0,gr1)'
    constant_names = 'mag0 mag1'
    constant_expressions = '200 100'
    expression = 'h0*mag0 + h1*mag1'
    derivative_order = 2
  [../]
[]

[Kernels]
  [./gr0_time]
    type = TimeDerivative
    variable = gr0
  [../]
  [./gr0_interface]
    type = ACInterface
    variable = gr0
    coupled_variables = 'gr1'
    mob_name = L
    kappa_name = 'kappa'
  [../]
  [./gr0_switching]
    type = ACSwitching
    variable = gr0
    coupled_variables = 'gr1'
    hj_names = 'h0 h1'
    Fj_names = 'E0 E1'
    mob_name = L
  [../]
  [./gr0_multi]
    type = ACGrGrMulti
    variable = gr0
    v = 'gr1'
    mob_name = L
    gamma_names = 'gamma'
  [../]
  [./gr0_barrier]
    type = ACBarrierFunction
    variable = gr0
    mob_name = L
    gamma = gamma
    v = 'gr1'
  [../]
  [./gr0_kappa]
    type = ACKappaFunction
    variable = gr0
    mob_name = L
    kappa_name = kappa
    v = 'gr1'
  [../]

  [./gr1_time]
    type = TimeDerivative
    variable = gr1
  [../]
  [./gr1_interface]
    type = ACInterface
    variable = gr1
    coupled_variables = 'gr0'
    mob_name = L
    kappa_name = 'kappa'
  [../]
  [./gr1_switching]
    type = ACSwitching
    variable = gr1
    coupled_variables = 'gr0'
    hj_names = 'h0 h1'
    Fj_names = 'E0 E1'
    mob_name = L
  [../]
  [./gr1_multi]
    type = ACGrGrMulti
    variable = gr1
    v = 'gr0'
    mob_name = L
    gamma_names = 'gamma'
  [../]
  [./gr1_barrier]
    type = ACBarrierFunction
    variable = gr1
    mob_name = L
    gamma = gamma
    v = 'gr0'
  [../]
  [./gr1_kappa]
    type = ACKappaFunction
    variable = gr1
    mob_name = L
    kappa_name = kappa
    v = 'gr0'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = NEWTON
  petsc_options_iname = '-pc_type -sub_pc_type -pc_asm_overlap -ksp_gmres_restart -sub_ksp_type'
  petsc_options_value = ' asm      ilu          1               31                 preonly'
  nl_max_its = 20
  l_max_its = 30
  l_tol = 1e-4
  nl_rel_tol = 1e-12
  nl_abs_tol = 1e-12
  start_time = 0
  num_steps = 3
  dt = 1
[]

[Outputs]
  exodus = true
[]

(test/tests/kernels/ad_vector_couple/ad_vector_couple.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
[]

[Variables]
  [u]
    family = LAGRANGE
    order = FIRST
  []
  [v]
    family = LAGRANGE_VEC
    order = FIRST
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = ADDiffusion
    variable = u
  []
  [convection]
    type = ADCoupledVectorConvection
    variable = u
    velocity_vector = v
  []
  [diff_v]
    type = ADVectorDiffusion
    variable = v
  []
[]

[BCs]
  [left]
    type = ADFunctionDirichletBC
    variable = u
    function = 1
    boundary = 'left'
  []
  [right]
    type = ADFunctionDirichletBC
    variable = u
    function = 2
    boundary = 'bottom'
  []

  [left_v]
    type = ADVectorFunctionDirichletBC
    variable = v
    function_x = 1
    function_y = 2
    boundary = 'left'
  []
  [right_v]
    type = ADVectorFunctionDirichletBC
    variable = v
    function_x = 4
    function_y = 8
    boundary = 'top'
  []
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  num_steps = 10
  dt = 0.05
[]

[Outputs]
  execute_on = TIMESTEP_END
  exodus = true
[]

(modules/stochastic_tools/test/tests/samplers/mcmc/sub.i)

left_bc = 0.13508909593042528
right_bc = -1.5530467809139854
mesh1 = 1

param1 = '${fparse left_bc}'
param2 = '${fparse right_bc}'
param3 = '${fparse mesh1}'

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmax = ${param3}
  xmin = 0
  ymax = 1
  ymin = 0
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = ${param1} # Actual = 0.15
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = ${param2} # Actual = -1.5
  []
[]

[Postprocessors]
  [average]
    type = ElementAverageValue
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  console = 'false'
[]

(test/tests/multiapps/move_and_reset/multilevel_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = multilevel_sub.i
    output_in_position = true
    reset_apps = 0
    reset_time = 0.05
    move_time = 0.05
    move_positions = '2 2 0'
    move_apps = 0
  [../]
[]

(modules/phase_field/test/tests/flood_counter_aux_test/flood_counter_boundary_restrictable.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
  nz = 0

  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./bubble_map]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  active = 'diff forcing_1 forcing_2 forcing_3 forcing_4 dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing_1]
    type = GaussContForcing
    variable = u
    x_center = 1.0
    y_center = 1.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./forcing_2]
    type = GaussContForcing
    variable = u
    x_center = 20.0
    y_center = 39.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./forcing_3]
    type = GaussContForcing
    variable = u
    x_center = 39.0
    y_center = 20.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./forcing_4]
    type = GaussContForcing
    variable = u
    x_center = 15.0
    y_center = 15.0
    x_spread = 0.5
    y_spread = 0.5
    amplitude = 2.0
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./mapper]
    type = FeatureFloodCountAux
    variable = bubble_map
    execute_on = 'initial timestep_end'
    flood_counter = bubbles
  [../]
[]

[Postprocessors]
  [./bubbles]
    type = FeatureFloodCount
    variable = u
    threshold = 0.1
    execute_on = 'initial timestep_end'
    boundary = 'top right left bottom'
  [../]
[]

[Executioner]
  type = Transient
  dt = 4.0
  num_steps = 2
[]

[Outputs]
  execute_on = 'timestep_end'
  csv = true
[]

(modules/porous_flow/test/tests/dirackernels/bh_except04.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    at_nodes = true # Needed to force exepected error
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    function_of = temperature
    point_file = bh02.bh
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(modules/functional_expansion_tools/test/tests/errors/multiapp_missing_local_object.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '3'
    physical_bounds = '0.0  10.0'
    x = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = multiapp_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Value_UserObject
    multi_app_object_name = FX_Basis_Value_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(test/tests/misc/exception/parallel_exception_residual_transient.i)

[Mesh]
  file = 2squares.e
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./exception]
    type = ExceptionKernel
    variable = u
    when = residual
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./time_deriv]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  [../]
  [./right2]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  dtmin = 0.005
  solve_type = 'PJFNK'
  snesmf_reuse_base = false
[]

[Outputs]
  exodus = true
[]

(test/tests/interfaces/random/random_uo.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./random_elemental]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./random_elemental]
    type = RandomAux
    variable = random_elemental
    random_user_object = random_uo
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[UserObjects]
  [./random_uo]
    type = RandomElementalUserObject
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/jacobian/line_sink01.i)

# PorousFlowPeacemanBorehole with 2-phase, 3-components, with enthalpy, internal_energy, and thermal_conductivity
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph0_sp1]
  []
  [massfrac_ph1_sp0]
  []
  [massfrac_ph1_sp1]
  []
  [temp]
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp ppwater ppgas massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
    number_fluid_phases = 2
    number_fluid_components = 3
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
  [dummy_outflow0]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow1]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow2]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow3]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow4]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow5]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow6]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow7]
    type = PorousFlowSumQuantity
  []
[]

[ICs]
  [temp]
    type = RandomIC
    variable = temp
    min = 1
    max = 2
  []
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph0_sp1]
    type = RandomIC
    variable = massfrac_ph0_sp1
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp1]
    type = RandomIC
    variable = massfrac_ph1_sp1
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_temp]
    type = TimeDerivative
    variable = temp
  []
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m01]
    type = TimeDerivative
    variable = massfrac_ph0_sp1
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
  [dummy_m11]
    type = TimeDerivative
    variable = massfrac_ph1_sp1
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
    cv = 1.1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
    cv = 1.8
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
  [thermal_conductivity]
    type = PorousFlowThermalConductivityIdeal
    dry_thermal_conductivity = '0.1 0.02 0.03 0.02 0.0 0.01 0.03 0.01 0.3'
  []
[]

[DiracKernels]
  [dirac0]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = ppwater
    point_file = one_point.bh
    line_length = 1
    SumQuantityUO = dummy_outflow0
    character = 1
    bottom_p_or_t = -10
    unit_weight = '1 2 3'
    re_constant = 0.123
  []
  [dirac1]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = ppgas
    line_length = 1
    line_direction = '-1 -1 -1'
    use_relative_permeability = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow1
    character = -0.5
    bottom_p_or_t = 10
    unit_weight = '1 2 -3'
    re_constant = 0.3
  []
  [dirac2]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = massfrac_ph0_sp0
    line_length = 1.3
    line_direction = '1 0 1'
    use_mobility = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow2
    character = 0.6
    bottom_p_or_t = -4
    unit_weight = '-1 -2 -3'
    re_constant = 0.4
  []
  [dirac3]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = massfrac_ph0_sp1
    line_length = 1.3
    line_direction = '1 1 1'
    use_enthalpy = true
    mass_fraction_component = 0
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow3
    character = -1
    bottom_p_or_t = 3
    unit_weight = '0.1 0.2 0.3'
    re_constant = 0.5
  []
  [dirac4]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = massfrac_ph1_sp0
    function_of = temperature
    line_length = 0.9
    line_direction = '1 1 1'
    mass_fraction_component = 1
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow4
    character = 1.1
    bottom_p_or_t = -7
    unit_weight = '-1 2 3'
    re_constant = 0.6
  []
  [dirac5]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = temp
    line_length = 0.9
    function_of = temperature
    line_direction = '1 2 3'
    mass_fraction_component = 2
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow5
    character = 0.9
    bottom_p_or_t = -8
    unit_weight = '1 2 1'
    re_constant = 0.7
  []
  [dirac6]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = ppwater
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow6
    character = 0
    bottom_p_or_t = 10
    unit_weight = '0.0 0.0 0.0'
  []
  [dirac7]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = massfrac_ph0_sp0
    use_mobility = true
    mass_fraction_component = 1
    use_relative_permeability = true
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow7
    character = -1
    bottom_p_or_t = 10
    unit_weight = '0.1 0.2 0.3'
  []
[]

[Preconditioning]
  [check]
    type = SMP
    full = true
    #petsc_options = '-snes_test_display'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  file_base = line_sink01
[]

(test/tests/multiapps/secant_postprocessor/transient_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  parallel_type = replicated
  uniform_refine = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [sink]
    type = BodyForce
    variable = u
    value = -1
  []
[]

[BCs]
  [right]
    type = PostprocessorDirichletBC
    variable = u
    boundary = right
    postprocessor = 'from_main'
  []
[]

[Postprocessors]
  [from_main]
    type = Receiver
    default = 0
  []
  [to_main]
    type = SideAverageValue
    variable = u
    boundary = left
  []
  [average]
    type = ElementAverageValue
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-14

  fixed_point_algorithm = 'secant'
[]

[Outputs]
  [csv]
    type = CSV
    start_step = 6
  []
  exodus = false
[]

(modules/rdg/test/tests/advection_1d/1d_aefv_square_wave.i)

############################################################
[GlobalParams]
  order = CONSTANT
  family = MONOMIAL
  u = u
  slope_limiting = lslope
  implicit = false
[]
############################################################
[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 1
  nx = 100
[]
############################################################
[Functions]
  [./ic_u]
    type = PiecewiseConstant
    axis = x
    direction = right
    xy_data = '0.1 0.5
               0.6 1.0
               1.0 0.5'
  [../]
[]
############################################################
[UserObjects]
  [./lslope]
    type = AEFVSlopeLimitingOneD
    execute_on = 'linear'
    scheme = 'none' #none | minmod | mc | superbee
  [../]

  [./internal_side_flux]
    type = AEFVUpwindInternalSideFlux
    execute_on = 'linear'
  [../]

  [./free_outflow_bc]
    type = AEFVFreeOutflowBoundaryFlux
    execute_on = 'linear'
  [../]
[]
############################################################
[Variables]
  [./u]
  [../]
[]
############################################################
[ICs]
  [./u_ic]
    type = FunctionIC
    variable = 'u'
    function = ic_u
  [../]
[]
############################################################
[Kernels]
  [./time_u]
    implicit = true
    type = TimeDerivative
    variable = u
  [../]
[]
############################################################
[DGKernels]
  [./concentration]
    type = AEFVKernel
    variable = u
    component = 'concentration'
    flux = internal_side_flux
  [../]
[]
############################################################
[BCs]
  [./concentration]
    type = AEFVBC
    boundary = 'left right'
    variable = u
    component = 'concentration'
    flux = free_outflow_bc
  [../]
[]
############################################################
[Materials]
  [./aefv]
    type = AEFVMaterial
    block = 0
  [../]
[]
############################################################
[Executioner]
  type = Transient
  [./TimeIntegrator]
    type = ExplicitMidpoint
  [../]
  solve_type = 'LINEAR'

  l_tol = 1e-4
  nl_rel_tol = 1e-20
  nl_abs_tol = 1e-8
  nl_max_its = 60

  start_time = 0.0
  num_steps = 4 # 4 | 400 for complete run
  dt = 5e-4
  dtmin = 1e-6
[]

[Outputs]
  [./Exodus]
    type = Exodus
    file_base = 1d_aefv_square_wave_none_out
    time_step_interval = 2
  [../]
  perf_graph = true
[]

(test/tests/time_integrators/dirk/dirk-2d-heat-adap.i)

[Mesh]
  type = GeneratedMesh
  dim  = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx   = 4
  ny   = 4
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value    = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value    = 1
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  start_time = 0.0
  num_steps  = 5
  dt         = 0.25

  [./TimeIntegrator]
    type = LStableDirk2
  [../]

  [./Adaptivity]
    refine_fraction  = 0.07
    coarsen_fraction = 0.
    max_h_level      = 4
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/kernels/tag_errors/tag_doesnt_exist/bad_transient.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  # Preconditioned JFNK (default)
  type = Steady
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(test/tests/misc/dont_overghost/test_vector_type.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  uniform_refine = 2
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [test_time_type]
    type = TestVectorType
    system = nl
    vector = TIME
    vector_type = parallel
  []
  [test_nontime_type]
    type = TestVectorType
    system = nl
    vector = NONTIME
    vector_type = parallel
  []
[]

(test/tests/userobjects/shape_element_user_object/jacobian.i)

[GlobalParams]
  use_displaced_mesh = true
[]

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 2
  parallel_type = replicated
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = (x-0.5)^2
    [../]
  [../]
  [./v]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = (x-0.5)^2
    [../]
  [../]
[]

[Kernels]
  [./diff_u]
    type = Diffusion
    variable = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./shape_w]
    type = ExampleShapeElementKernel
    user_object = example_uo
    v = v
    variable = u
  [../]
  [./time_u]
    type = TimeDerivative
    variable = u
  [../]
  [./time_v]
    type = TimeDerivative
    variable = v
  [../]
[]

[UserObjects]
  [./example_uo]
    type = ExampleShapeElementUserObject
    u = u
    v = v
    # as this userobject computes quantities for both the residual AND the jacobian
    # it needs to have these execute_on flags set.
    execute_on = 'linear nonlinear'
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    #full = true
    off_diag_row =    'u'
    off_diag_column = 'v'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 0.1
  num_steps = 2
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(test/tests/outputs/dofmap/simple_transient.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  marker = marker
  initial_steps = 1
  initial_marker = marker
  [./Markers]
    [./marker]
      type = UniformMarker
      mark = REFINE
    [../]
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  [./dofmap]
    type = DOFMap
    execute_on = timestep_begin
  [../]
[]

(modules/phase_field/test/tests/KKS_system/kks_xevac.i)

#
# KKS toy problem in the split form
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmin = -2.5
  xmax = 2.5
  ymin = -2.5
  ymax = 2.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[AuxVariables]
  [./Fglobal]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Variables]
  # gas concentration
  [./cg]
    order = FIRST
    family = LAGRANGE
  [../]

  # vac concentration
  [./cv]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./cv]
    variable = cv
    type = SmoothCircleIC
    x1 = -0.5
    y1 = 0.0
    radius = 1.5
    invalue = 0.9
    outvalue = 0.1
    int_width = 0.75
  [../]
  [./cg]
    variable = cg
    type = SmoothCircleIC
    x1 = 0.5
    y1 = 0.0
    radius = 1.5
    invalue = 0.7
    outvalue = 0.0
    int_width = 0.75
  [../]
[]


[BCs]
  [./Periodic]
    [./all]
      variable = 'cg cv'
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  # Free energy of the matrix
  [./fm]
    type = KKSXeVacSolidMaterial
    property_name = fm
    cmg = cg
    cmv = cv
    T = 300
    outputs = exodus
    derivative_order = 2
  [../]
[]

[Kernels]
  [./diff_g]
    type = Diffusion
    variable = cg
  [../]
  [./time_g]
    type = TimeDerivative
    variable = cg
  [../]

  [./diff_v]
    type = Diffusion
    variable = cv
  [../]
  [./time_v]
    type = TimeDerivative
    variable = cv
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  num_steps = 3
  dt = 0.1
  petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type'
  petsc_options_value = ' asm    lu          nonzero'
[]

[Outputs]
  file_base = kks_xevac
  exodus = true
[]

(test/tests/restart/restart_subapp_not_parent/two_step_solve_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax =  1
  ymin = -1
  ymax =  1
  nx = 2
  ny = 2
  elem_type = QUAD9
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*t*(x*x+y*y)
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 2*t*(x*x+y*y)-4*t*t
  [../]
[]

[Variables]
  [./u]
    family = LAGRANGE
    order = SECOND
  [../]
[]

[ICs]
  active = ''
  [./u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./average]
    type = ElementAverageValue
    variable = u
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  start_time = 2.0
  end_time = 4.0
  dt = 1.0
[]

[MultiApps]
  [./full_solve]
    type = FullSolveMultiApp
    execute_on = initial
    positions = '0 0 0'
    # input file will come from cli-coupled_variables
  [../]
[]

[Transfers]
  [./transfer_u]
    type = MultiAppProjectionTransfer
    multi_app = full_solve
    direction = FROM_MULTIAPP
    variable = u
    source_variable = u
  [../]
[]

[Outputs]
  #file_base will come from cli-coupled_variables
  exodus = true
[]

(test/tests/multiapps/restart_multilevel/parent2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  ymin = 0
  xmax = 1
  ymax = 1
  nx = 10
  ny = 10
[]

[Functions]
  [v_fn]
    type = ParsedFunction
    expression = t*x
  []
  [ffn]
    type = ParsedFunction
    expression = x
  []
[]

[AuxVariables]
  [v]
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [ufn]
    type = BodyForce
    variable = u
    function = ffn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = v_fn
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    app_type = MooseTestApp
    type = TransientMultiApp
    input_files = 'sub.i'
    execute_on = timestep_end
    positions = '0 -1 0'
  []
[]

[Transfers]
  [from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub_app
    source_variable = u
    variable = v
  []
[]

[Problem]
  restart_file_base = parent_out_cp/0005
[]

(modules/phase_field/test/tests/flood_counter_aux_test/flood_aux.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  nz = 0

  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./bubble_map]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'diff forcing_1 forcing_2 forcing_3 forcing_4 dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing_1]
    type = GaussContForcing
    variable = u
    x_center = 1.0
    y_center = 1.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./forcing_2]
    type = GaussContForcing
    variable = u
    x_center = 20.0
    y_center = 39.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./forcing_3]
    type = GaussContForcing
    variable = u
    x_center = 39.0
    y_center = 20.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./forcing_4]
    type = GaussContForcing
    variable = u
    x_center = 15.0
    y_center = 15.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./mapper]
    type = FeatureFloodCountAux
    variable = bubble_map
    execute_on = timestep_end
    flood_counter = bubbles
  [../]
[]

[BCs]
  [./Periodic]
    [./x]
      variable = u
      auto_direction = 'x y'
    [../]
  [../]
[]

[UserObjects]
  [./bubbles]
    type = FeatureFloodCount
    variable = u
    threshold = 0.3
    execute_on = timestep_end
    outputs = none
    flood_entity_type = NODAL
  [../]
[]

[Executioner]
  active = ''

  type = Transient
  dt = 4.0
  num_steps = 5

  [./Adaptivity]
    refine_fraction = .40
    coarsen_fraction = .02
    max_h_level = 3
    error_estimator = KellyErrorEstimator
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out
  exodus = true
[]

(test/tests/multiapps/cliargs_from_file/cliargs_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

 [Outputs]
  exodus = true
[]

(test/tests/transfers/get_transfers_from_feproblem/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./nearest_node]
  [../]
  [./mesh_function]
  [../]
[]

[Kernels]
  [./cd]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.01
  num_steps = 1
  nl_rel_tol = 1e-10
[]

(test/tests/thewarehouse/test1.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 100
    ny = 100
  []
  [manyblocks]
    input = gen
    type = ElemUniqueSubdomainsGenerator
  []
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[Materials]
  [mat_props]
    type = GenericConstantMaterial
    prop_names = diffusivity
    prop_values = 2
  []
[]

[UserObjects]
[]

[Postprocessors]
  [avg_flux_right]
    # Computes -\int(exp(y)+1) from 0 to 1 which is -2.718281828
    type = SideDiffusiveFluxAverage
    variable = u
    boundary = right
    diffusivity = diffusivity
  []
  [u1_avg]
    type = ElementAverageValue
    variable = u
    execute_on = 'initial timestep_end'
  []

  [u2_avg]
    type = ElementAverageValue
    variable = u
    execute_on = 'initial timestep_end'
  []

  [diff]
    type = DifferencePostprocessor
    value1 = u1_avg
    value2 = u2_avg
    execute_on = 'initial timestep_end'
  []
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(test/tests/restart/restart_subapp_not_parent/two_step_solve_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax =  1
  ymin = -1
  ymax =  1
  nx = 2
  ny = 2
  elem_type = QUAD9
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*t*(x*x+y*y)
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 2*t*(x*x+y*y)-4*t*t
  [../]
[]

[Variables]
  [./u]
    family = LAGRANGE
    order = SECOND
  [../]
[]

[ICs]
  [./u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./average]
    type = ElementAverageValue
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0.0
  end_time = 2.0
  dt = 1.0
[]

[Outputs]
  [./checkpoint]
    type = Checkpoint
    num_files = 3
  [../]
[]

(modules/porous_flow/test/tests/dirackernels/bh_except13.i)

# PorousFlowPeacemanBorehole exception test
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [pp]
    initial_condition = 1E7
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [borehole_total_outflow_mass]
    type = PorousFlowSumQuantity
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1e-7
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 2e9
    viscosity = 1e-3
    density0 = 1000
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [porosity]
    type = PorousFlowPorosityConst
    porosity = 0.1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1E-12 0 0 0 1E-12 0 0 0 1E-12'
  []
[]

[DiracKernels]
  [bh]
    type = PorousFlowPeacemanBorehole
    bottom_p_or_t = 0
    fluid_phase = 0
    point_file = coincident_points.bh
    SumQuantityUO = borehole_total_outflow_mass
    variable = pp
    unit_weight = '0 0 0'
    character = 1
  []
[]

[Postprocessors]
  [bh_report]
    type = PorousFlowPlotQuantity
    uo = borehole_total_outflow_mass
  []

  [fluid_mass0]
    type = PorousFlowFluidMass
    execute_on = timestep_begin
  []

  [fluid_mass1]
    type = PorousFlowFluidMass
    execute_on = timestep_end
  []

  [zmass_error]
    type = FunctionValuePostprocessor
    function = mass_bal_fcn
    execute_on = timestep_end
  []

  [p0]
    type = PointValue
    variable = pp
    point = '0 0 0'
    execute_on = timestep_end
  []
[]

[Functions]
  [mass_bal_fcn]
    type = ParsedFunction
    expression = abs((a-c+d)/2/(a+c))
    symbol_names = 'a c d'
    symbol_values = 'fluid_mass1 fluid_mass0 bh_report'
  []
[]

[Preconditioning]
  [usual]
    type = SMP
    full = true
    petsc_options = '-snes_converged_reason'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -ksp_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-10 1E-10 10000 30'
  []
[]

[Executioner]
  type = Transient
  end_time = 0.5
  dt = 1E-2
  solve_type = NEWTON
[]

(modules/thermal_hydraulics/test/tests/controls/terminate/terminate.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [dt_pp]
    type = TimestepSize
  []
[]

[Components]
[]

[ControlLogic]
  [threshold]
    type = UnitTripControl
    condition = 'dt_pp > 3'
    symbol_names = 'dt_pp'
    symbol_values = 'dt_pp'
  []

  [terminate]
    type = TerminateControl
    input = threshold:state
    termination_message = 'Threshold exceeded'
  []
[]

[Functions]
  [dt_fn]
    type = ParsedFunction
    expression = '1 + t'
  []
[]

[Executioner]
  type = Transient
  [TimeStepper]
    type = FunctionDT
    function = dt_fn
  []
  num_steps = 10
  abort_on_solve_fail = true
[]

(test/tests/multiapps/picard_sub_cycling/fully_coupled.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./v]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./force_u]
    type = CoupledForce
    variable = u
    v = v
  [../]
  [./force_v]
    type = CoupledForce
    variable = v
    v = u
  [../]
  [./td_v]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
  [./left_v]
    type = DirichletBC
    variable = v
    boundary = left
    value = 1
  [../]
  [./right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_rel_tol = 1e-10
  nl_abs_tol = 1e-14
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/KKS_system/kks_multiphase.i)

#
# This test is for the 3-phase KKS model
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
  nz = 0
  xmin = 0
  xmax = 40
  ymin = 0
  ymax = 40
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[AuxVariables]
  [./Energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Variables]
  # concentration
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]

  # order parameter 1
  [./eta1]
    order = FIRST
    family = LAGRANGE
  [../]

  # order parameter 2
  [./eta2]
    order = FIRST
    family = LAGRANGE
  [../]

  # order parameter 3
  [./eta3]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]

  # phase concentration 1
  [./c1]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.2
  [../]

  # phase concentration 2
  [./c2]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.5
  [../]

  # phase concentration 3
  [./c3]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.8
  [../]

  # Lagrange multiplier
  [./lambda]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
[]

[ICs]
  [./eta1]
    variable = eta1
    type = SmoothCircleIC
    x1 = 20.0
    y1 = 20.0
    radius = 10
    invalue = 0.9
    outvalue = 0.1
    int_width = 4
  [../]
  [./eta2]
    variable = eta2
    type = SmoothCircleIC
    x1 = 20.0
    y1 = 20.0
    radius = 10
    invalue = 0.1
    outvalue = 0.9
    int_width = 4
  [../]
  [./c]
    variable = c
    type = SmoothCircleIC
    x1 = 20.0
    y1 = 20.0
    radius = 10
    invalue = 0.2
    outvalue = 0.5
    int_width = 2
  [../]
[]


[Materials]
  # simple toy free energies
  [./f1]
    type = DerivativeParsedMaterial
    property_name = F1
    coupled_variables = 'c1'
    expression = '20*(c1-0.2)^2'
  [../]
  [./f2]
    type = DerivativeParsedMaterial
    property_name = F2
    coupled_variables = 'c2'
    expression = '20*(c2-0.5)^2'
  [../]
  [./f3]
    type = DerivativeParsedMaterial
    property_name = F3
    coupled_variables = 'c3'
    expression = '20*(c3-0.8)^2'
  [../]

  # Switching functions for each phase
  # h1(eta1, eta2, eta3)
  [./h1]
    type = SwitchingFunction3PhaseMaterial
    eta_i = eta1
    eta_j = eta2
    eta_k = eta3
    property_name = h1
  [../]
  # h2(eta1, eta2, eta3)
  [./h2]
    type = SwitchingFunction3PhaseMaterial
    eta_i = eta2
    eta_j = eta3
    eta_k = eta1
    property_name = h2
  [../]
  # h3(eta1, eta2, eta3)
  [./h3]
    type = SwitchingFunction3PhaseMaterial
    eta_i = eta3
    eta_j = eta1
    eta_k = eta2
    property_name = h3
  [../]

  # Coefficients for diffusion equation
  [./Dh1]
    type = DerivativeParsedMaterial
    material_property_names = 'D h1'
    expression = D*h1
    property_name = Dh1
  [../]
  [./Dh2]
    type = DerivativeParsedMaterial
    material_property_names = 'D h2'
    expression = D*h2
    property_name = Dh2
  [../]
  [./Dh3]
    type = DerivativeParsedMaterial
    material_property_names = 'D h3'
    expression = D*h3
    property_name = Dh3
  [../]

  # Barrier functions for each phase
  [./g1]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta1
    function_name = g1
  [../]
  [./g2]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta2
    function_name = g2
  [../]
  [./g3]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta3
    function_name = g3
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'L   kappa  D'
    prop_values = '0.7 1.0    1'
  [../]
[]

[Kernels]
  #Kernels for diffusion equation
  [./diff_time]
    type = TimeDerivative
    variable = c
  [../]
  [./diff_c1]
    type = MatDiffusion
    variable = c
    diffusivity = Dh1
    v = c1
  [../]
  [./diff_c2]
    type = MatDiffusion
    variable = c
    diffusivity = Dh2
    v = c2
  [../]
  [./diff_c3]
    type = MatDiffusion
    variable = c
    diffusivity = Dh3
    v = c3
  [../]

  # Kernels for Allen-Cahn equation for eta1
  [./deta1dt]
    type = TimeDerivative
    variable = eta1
  [../]
  [./ACBulkF1]
    type = KKSMultiACBulkF
    variable  = eta1
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    gi_name   = g1
    eta_i     = eta1
    wi        = 1.0
    coupled_variables      = 'c1 c2 c3 eta2 eta3'
  [../]
  [./ACBulkC1]
    type = KKSMultiACBulkC
    variable  = eta1
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    cj_names  = 'c1 c2 c3'
    eta_i     = eta1
    coupled_variables      = 'eta2 eta3'
  [../]
  [./ACInterface1]
    type = ACInterface
    variable = eta1
    kappa_name = kappa
  [../]
  [./multipler1]
    type = MatReaction
    variable = eta1
    v = lambda
    reaction_rate = L
  [../]

  # Kernels for Allen-Cahn equation for eta2
  [./deta2dt]
    type = TimeDerivative
    variable = eta2
  [../]
  [./ACBulkF2]
    type = KKSMultiACBulkF
    variable  = eta2
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    gi_name   = g2
    eta_i     = eta2
    wi        = 1.0
    coupled_variables      = 'c1 c2 c3 eta1 eta3'
  [../]
  [./ACBulkC2]
    type = KKSMultiACBulkC
    variable  = eta2
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    cj_names  = 'c1 c2 c3'
    eta_i     = eta2
    coupled_variables      = 'eta1 eta3'
  [../]
  [./ACInterface2]
    type = ACInterface
    variable = eta2
    kappa_name = kappa
  [../]
  [./multipler2]
    type = MatReaction
    variable = eta2
    v = lambda
    reaction_rate = L
  [../]

  # Kernels for the Lagrange multiplier equation
  [./mult_lambda]
    type = MatReaction
    variable = lambda
    reaction_rate = 3
  [../]
  [./mult_ACBulkF_1]
    type = KKSMultiACBulkF
    variable  = lambda
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    gi_name   = g1
    eta_i     = eta1
    wi        = 1.0
    mob_name  = 1
    coupled_variables      = 'c1 c2 c3 eta2 eta3'
  [../]
  [./mult_ACBulkC_1]
    type = KKSMultiACBulkC
    variable  = lambda
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    cj_names  = 'c1 c2 c3'
    eta_i     = eta1
    coupled_variables      = 'eta2 eta3'
    mob_name  = 1
  [../]
  [./mult_CoupledACint_1]
    type = SimpleCoupledACInterface
    variable = lambda
    v = eta1
    kappa_name = kappa
    mob_name = 1
  [../]
  [./mult_ACBulkF_2]
    type = KKSMultiACBulkF
    variable  = lambda
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    gi_name   = g2
    eta_i     = eta2
    wi        = 1.0
    mob_name  = 1
    coupled_variables      = 'c1 c2 c3 eta1 eta3'
  [../]
  [./mult_ACBulkC_2]
    type = KKSMultiACBulkC
    variable  = lambda
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    cj_names  = 'c1 c2 c3'
    eta_i     = eta2
    coupled_variables      = 'eta1 eta3'
    mob_name  = 1
  [../]
  [./mult_CoupledACint_2]
    type = SimpleCoupledACInterface
    variable = lambda
    v = eta2
    kappa_name = kappa
    mob_name = 1
  [../]
  [./mult_ACBulkF_3]
    type = KKSMultiACBulkF
    variable  = lambda
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    gi_name   = g3
    eta_i     = eta3
    wi        = 1.0
    mob_name  = 1
    coupled_variables      = 'c1 c2 c3 eta1 eta2'
  [../]
  [./mult_ACBulkC_3]
    type = KKSMultiACBulkC
    variable  = lambda
    Fj_names  = 'F1 F2 F3'
    hj_names  = 'h1 h2 h3'
    cj_names  = 'c1 c2 c3'
    eta_i     = eta3
    coupled_variables      = 'eta1 eta2'
    mob_name  = 1
  [../]
  [./mult_CoupledACint_3]
    type = SimpleCoupledACInterface
    variable = lambda
    v = eta3
    kappa_name = kappa
    mob_name = 1
  [../]

  # Kernels for constraint equation eta1 + eta2 + eta3 = 1
  # eta3 is the nonlinear variable for the constraint equation
  [./eta3reaction]
    type = MatReaction
    variable = eta3
    reaction_rate = 1
  [../]
  [./eta1reaction]
    type = MatReaction
    variable = eta3
    v = eta1
    reaction_rate = 1
  [../]
  [./eta2reaction]
    type = MatReaction
    variable = eta3
    v = eta2
    reaction_rate = 1
  [../]
  [./one]
    type = BodyForce
    variable = eta3
    value = -1.0
  [../]

  # Phase concentration constraints
  [./chempot12]
    type = KKSPhaseChemicalPotential
    variable = c1
    cb       = c2
    fa_name  = F1
    fb_name  = F2
  [../]
  [./chempot23]
    type = KKSPhaseChemicalPotential
    variable = c2
    cb       = c3
    fa_name  = F2
    fb_name  = F3
  [../]
  [./phaseconcentration]
    type = KKSMultiPhaseConcentration
    variable = c3
    cj = 'c1 c2 c3'
    hj_names = 'h1 h2 h3'
    etas = 'eta1 eta2 eta3'
    c = c
  [../]
[]

[AuxKernels]
  [./Energy_total]
    type = KKSMultiFreeEnergy
    Fj_names = 'F1 F2 F3'
    hj_names = 'h1 h2 h3'
    gj_names = 'g1 g2 g3'
    variable = Energy
    w = 1
    interfacial_vars =  'eta1  eta2  eta3'
    kappa_names =       'kappa kappa kappa'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -sub_pc_type   -sub_pc_factor_shift_type'
  petsc_options_value = 'asm       ilu            nonzero'
  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  nl_abs_tol = 1.0e-11

  num_steps = 2
  dt = 0.5
[]

[Preconditioning]
  active = 'full'
  [./full]
    type = SMP
    full = true
  [../]
  [./mydebug]
    type = FDP
    full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/restart/restart_diffusion/restart_diffusion_from_end_part2.i)

[Mesh]
  file = restart_diffusion_from_end_part1_out.e
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    initial_from_file_var = u
    initial_from_file_timestep = LATEST
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/porous_flow/test/tests/numerical_diffusion/framework.i)

# Using framework objects: no mass lumping or upwinding
[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 100
  xmin = 0
  xmax = 1
[]

[Variables]
  [tracer]
  []
[]

[ICs]
  [tracer]
    type = FunctionIC
    variable = tracer
    function = 'if(x<0.1,0,if(x>0.3,0,1))'
  []
[]

[Kernels]
  [mass_dot]
    type = TimeDerivative
    variable = tracer
  []
  [flux]
    type = ConservativeAdvection
    velocity = '0.1 0 0'
    variable = tracer
  []
[]

[BCs]
  [no_tracer_on_left]
    type = DirichletBC
    variable = tracer
    value = 0
    boundary = left
  []
  [remove_tracer]
    # Ideally, an OutflowBC would be used, but that does not exist in the framework
    # In 1D VacuumBC is the same as OutflowBC, with the alpha parameter being twice the velocity
    type = VacuumBC
    boundary = right
    alpha = 0.2 # 2 * velocity
    variable = tracer
  []
[]

[Preconditioning]
  active = basic
  [basic]
    type = SMP
    full = true
    petsc_options = '-ksp_diagonal_scale -ksp_diagonal_scale_fix'
    petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type -pc_asm_overlap'
    petsc_options_value = ' asm      lu           NONZERO                   2'
  []
  [preferred_but_might_not_be_installed]
    type = SMP
    full = true
    petsc_options_iname = '-pc_type -pc_factor_mat_solver_package'
    petsc_options_value = ' lu       mumps'
  []
[]

[VectorPostprocessors]
  [tracer]
    type = LineValueSampler
    start_point = '0 0 0'
    end_point = '1 0 0'
    num_points = 101
    sort_by = x
    variable = tracer
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  end_time = 6
  dt = 6E-1
  nl_abs_tol = 1E-8
  timestep_tolerance = 1E-3
[]

[Outputs]
  [out]
    type = CSV
    execute_on = final
  []
[]

(test/tests/kernels/ad_vector_couple/ad_vector_couple_default.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
[]

[Variables]
  [u]
    family = LAGRANGE
    order = FIRST
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = ADDiffusion
    variable = u
  []
  [convection]
    type = ADCoupledVectorConvection
    variable = u
    velocity_vector = '0 1'
  []
[]

[BCs]
  [left]
    type = ADFunctionDirichletBC
    variable = u
    function = 1
    boundary = 'left'
  []
  [right]
    type = ADFunctionDirichletBC
    variable = u
    function = 2
    boundary = 'bottom'
  []
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  execute_on = TIMESTEP_END
  exodus = true
[]

(test/tests/transfers/transfer_interpolation/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./nearest_node]
  [../]
  [./mesh_function]
  [../]
  [./user_object]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./interpolation]
  [../]
[]

[Kernels]
  [./cd]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.01
  nl_rel_tol = 1e-10

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/move_and_reset/multilevel_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = multilevel_sub_sub.i
    output_in_position = true
  [../]
[]

(modules/phase_field/test/tests/GrandPotentialPFM/GrandPotentialAnisotropyAntitrap.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  xmin = -2
  xmax = 2
  ymin = -2
  ymax = 2
[]

[GlobalParams]
  radius = 1.0
  int_width = 0.8
  x1 = 0
  y1 = 0
  enable_jit = true
  derivative_order = 2
[]

[Variables]
  [./w]
  [../]
  [./etaa0]
  [../]
  [./etab0]
  [../]
[]

[AuxVariables]
  [./bnds]
  [../]
[]

[AuxKernels]
  [./bnds]
    type = BndsCalcAux
    variable = bnds
    v = 'etaa0 etab0'
  [../]
[]

[ICs]
  [./w]
    type = SmoothCircleIC
    variable = w
    outvalue = -4.0
    invalue = 0.0
  [../]
  [./etaa0]
    type = SmoothCircleIC
    variable = etaa0
    #Solid phase
    outvalue = 0.0
    invalue = 1.0
  [../]
  [./etab0]
    type = SmoothCircleIC
    variable = etab0
    #Liquid phase
    outvalue = 1.0
    invalue = 0.0
  [../]
[]

[Kernels]
# Order parameter eta_alpha0
  [./ACa0_bulk]
    type = ACGrGrMulti
    variable = etaa0
    v =           'etab0'
    gamma_names = 'gab'
  [../]
  [./ACa0_sw]
    type = ACSwitching
    variable = etaa0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etab0 w'
  [../]
  [./ACa0_int1]
    type = ACInterface2DMultiPhase1
    variable = etaa0
    etas = 'etab0'
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
    d2kappadgrad_etaa_name = d2kappadgrad_etaa
  [../]
  [./ACa0_int2]
    type = ACInterface2DMultiPhase2
    variable = etaa0
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
  [../]
  [./ea0_dot]
    type = TimeDerivative
    variable = etaa0
  [../]
# Order parameter eta_beta0
  [./ACb0_bulk]
    type = ACGrGrMulti
    variable = etab0
    v =           'etaa0'
    gamma_names = 'gab'
  [../]
  [./ACb0_sw]
    type = ACSwitching
    variable = etab0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etaa0 w'
  [../]
  [./ACb0_int1]
    type = ACInterface2DMultiPhase1
    variable = etab0
    etas = 'etaa0'
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
    d2kappadgrad_etaa_name = d2kappadgrad_etab
  [../]
  [./ACb0_int2]
    type = ACInterface2DMultiPhase2
    variable = etab0
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
  [../]
  [./eb0_dot]
    type = TimeDerivative
    variable = etab0
  [../]
#Chemical potential
  [./w_dot]
    type = SusceptibilityTimeDerivative
    variable = w
    f_name = chi
    coupled_variables = '' # in this case chi (the susceptibility) is simply a constant
  [../]
  [./Diffusion]
    type = MatDiffusion
    variable = w
    diffusivity = Dchi
    args = ''
  [../]
  [./coupled_etaa0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etaa0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0'
  [../]
  [./coupled_etab0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etab0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0'
  [../]
  [./coupled_etaa0dot_int]
    type = AntitrappingCurrent
    variable = w
    v = etaa0
    f_name = rhodiff
  [../]
  [./coupled_etab0dot_int]
    type = AntitrappingCurrent
    variable = w
    v = etab0
    f_name = rhodiff
  [../]
[]

[Materials]
  [./ha]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = ha
    all_etas = 'etaa0 etab0'
    phase_etas = 'etaa0'
  [../]
  [./hb]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hb
    all_etas = 'etaa0 etab0'
    phase_etas = 'etab0'
  [../]
  [./omegaa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegaa
    material_property_names = 'Vm ka caeq'
    expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
  [../]
  [./omegab]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegab
    material_property_names = 'Vm kb cbeq'
    expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq'
  [../]
  [./rhoa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhoa
    material_property_names = 'Vm ka caeq'
    expression = 'w/Vm^2/ka + caeq/Vm'
  [../]
  [./rhob]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhob
    material_property_names = 'Vm kb cbeq'
    expression = 'w/Vm^2/kb + cbeq/Vm'
  [../]
  [./int]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhodiff
    material_property_names = 'rhoa rhob'
    constant_names = 'int_width'
    constant_expressions = '0.8'
    expression = 'int_width*(rhob-rhoa)'
  [../]
  [./kappaa]
    type = InterfaceOrientationMultiphaseMaterial
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
    d2kappadgrad_etaa_name = d2kappadgrad_etaa
    etaa = etaa0
    etab = etab0
  [../]
  [./kappab]
    type = InterfaceOrientationMultiphaseMaterial
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
    d2kappadgrad_etaa_name = d2kappadgrad_etab
    etaa = etab0
    etab = etaa0
  [../]
  [./const]
    type = GenericConstantMaterial
    prop_names =  'L   D    chi  Vm   ka    caeq kb    cbeq  gab mu'
    prop_values = '1.0 1.0  0.1  1.0  10.0  0.1  10.0  0.9   4.5 10.0'
  [../]
  [./Mobility]
    type = ParsedMaterial
    property_name = Dchi
    material_property_names = 'D chi'
    expression = 'D*chi'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  lu           1'
  l_tol = 1.0e-3
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1e-8
  num_steps = 3
  [./TimeStepper]
    type = IterationAdaptiveDT
    dt = 0.001
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/recover/recover_nemesis.i)

[Mesh]
  [mesh]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
  []
  parallel_type = distributed
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  file_base = recover_nemesis_out
  nemesis = true
  [recover]
    type = Checkpoint
    file_base = test_nemesis_recover_dir
  []
[]

(test/tests/transfers/multiapp_postprocessor_interpolation_transfer/quad_sub1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef= 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./pp]
    type = Receiver
    default = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/variables/coupled_scalar/coupled_scalar_old.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Functions]
  [./lin1_fn]
    type = ParsedFunction
    expression = t
  [../]
  [./lin2_fn]
    type = ParsedFunction
    expression = 't+1'
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux_scalar]
    order = SECOND
    family = SCALAR
  [../]
  [./coupled]
  [../]
  [./coupled_1]
  [../]
[]

[ICs]
  [./aux_scalar_ic]
    variable = aux_scalar
    values = '1.2 4.3'
    type = ScalarComponentIC
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[AuxKernels]
  [./coupled]
    type = CoupledScalarAux
    variable = coupled
    coupled = aux_scalar
  [../]
  [./coupled_1]
    # Coupling to the "1" component of an aux scalar
    type = CoupledScalarAux
    variable = coupled_1
    component = 1
    coupled = aux_scalar
  [../]
[]

[AuxScalarKernels]
  [./aux_scalar_k]
    type = FunctionScalarAux
    variable = aux_scalar
    function = 'lin1_fn lin2_fn'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 4
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/test_harness/output_csv_and_exodus.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [./x_field]
    type = PointValue
    variable = u
    point = '0.5 0.5 0'
  [../]
  [./y_field]
    type = PointValue
    variable = u
    point = '0.25 0.25 0'
  [../]
  [./z_field]
    type = PointValue
    variable = u
    point = '0.75 0.75 0'
  [../]
[]

[Outputs]
  csv = true
  exodus = true
[]

(test/tests/materials/output/block_via_outputs.i)

[Mesh]
  type = FileMesh
  file = rectangle.e
  dim = 2
  uniform_refine = 1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 10
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  [../]
[]

[Materials]
  [./block_1]
    type = OutputTestMaterial
    block = 1
    variable = u
  [../]
  [./block_2]
    type = OutputTestMaterial
    block = 2
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [./out]
    type = Exodus
    output_material_properties = true
    show_material_properties = real_property
  [../]
[]

(test/tests/outputs/system_info/system_info_mesh.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Adaptivity]
  marker = marker
  max_h_level = 2
  [./Indicators]
    [./indicator]
      type = GradientJumpIndicator
      variable = u
    [../]
  [../]
  [./Markers]
    [./marker]
      type = ErrorFractionMarker
      coarsen = 0.1
      indicator = indicator
      refine = 0.7
    [../]
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux_u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  print_mesh_changed_info = true
[]

(test/tests/time_integrators/explicit-euler/ee-2d-quadratic.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD9
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = ((x*x)+(y*y))-(4*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*((x*x)+(y*y))
  [../]
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
    implicit = true
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'explicit-euler'
  solve_type = 'LINEAR'

  l_tol = 1e-13
  start_time = 0.0
  num_steps = 20
  dt = 0.00005
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(modules/phase_field/test/tests/rigidbodymotion/grain_motion_fauxGT.i)

# test file for showing reaction forces between particles
[GlobalParams]
  var_name_base = eta
  op_num = 2
[]

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 5
  nz = 0
  xmax = 50
  ymax = 25
  zmax = 0
  elem_type = QUAD4
  uniform_refine = 1
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]
  [./eta0]
  [../]
  [./eta1]
  [../]
[]

[Kernels]
  [./c_res]
    type = SplitCHParsed
    variable = c
    f_name = F
    kappa_name = kappa_c
    coupled_variables = 'eta0 eta1'
    w = w
  [../]
  [./w_res]
    type = SplitCHWRes
    variable = w
    mob_name = M
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./motion]
    type = MultiGrainRigidBodyMotion
    variable = w
    c = c
    v = 'eta0 eta1'
    grain_force = grain_force
    grain_tracker_object = grain_center
    grain_volumes = grain_volumes
  [../]
  [./eta0_dot]
    type = TimeDerivative
    variable = eta0
  [../]
  [./vadv_eta]
    type = SingleGrainRigidBodyMotion
    variable = eta0
    c = c
    v = 'eta0 eta1'
    grain_force = grain_force
    grain_tracker_object = grain_center
    grain_volumes = grain_volumes
    op_index = 0
  [../]
  [./acint_eta0]
    type = ACInterface
    variable = eta0
    mob_name = M
    #coupled_variables = c
    kappa_name = kappa_eta
  [../]
  [./acbulk_eta0]
    type = AllenCahn
    variable = eta0
    mob_name = M
    f_name = F
    coupled_variables = 'c eta1'
  [../]
  [./eta1_dot]
    type = TimeDerivative
    variable = eta1
  [../]
  [./vadv_eta1]
    type = SingleGrainRigidBodyMotion
    variable = eta1
    c = c
    v = 'eta0 eta1'
    op_index = 1
    grain_force = grain_force
    grain_tracker_object = grain_center
    grain_volumes = grain_volumes
  [../]
  [./acint_eta1]
    type = ACInterface
    variable = eta1
    mob_name = M
    #coupled_variables = c
    kappa_name = kappa_eta
  [../]
  [./acbulk_eta1]
    type = AllenCahn
    variable = eta1
    mob_name = M
    f_name = F
    coupled_variables = 'c eta0'
  [../]
[]

[Materials]
  [./pfmobility]
    type = GenericConstantMaterial
    prop_names = 'M    kappa_c  kappa_eta'
    prop_values = '1.0  0.5      0.5'
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'c eta0 eta1'
    constant_names = 'barr_height  cv_eq'
    constant_expressions = '0.1          1.0e-2'
    expression = 16*barr_height*(c-cv_eq)^2*(1-cv_eq-c)^2+eta0*(1-eta0)*c+eta1*(1-eta1)*c
    derivative_order = 2
  [../]
  [./force_density]
    type = ForceDensityMaterial
    c = c
    etas ='eta0 eta1'
  [../]
[]

[AuxVariables]
  [./bnds]
  [../]
  [./df00]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./df01]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./df10]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./df11]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./unique_grains]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./var_indices]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./centroids]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./bnds]
    type = BndsCalcAux
    variable = bnds
    var_name_base = eta
    op_num = 2
    v = 'eta0 eta1'
  [../]
  [./df01]
    type = MaterialStdVectorRealGradientAux
    variable = df01
    index = 0
    component = 1
    property = force_density
  [../]
  [./df11]
    type = MaterialStdVectorRealGradientAux
    variable = df11
    index = 1
    component = 1
    property = force_density
  [../]
  [./df00]
    type = MaterialStdVectorRealGradientAux
    variable = df00
    index = 0
    component = 0
    property = force_density
  [../]
  [./df10]
    type = MaterialStdVectorRealGradientAux
    variable = df10
    index = 1
    component = 0
    property = force_density
  [../]
  [./unique_grains]
    type = FeatureFloodCountAux
    variable = unique_grains
    flood_counter = grain_center
    field_display = UNIQUE_REGION
    execute_on = 'initial timestep_end'
  [../]
  [./var_indices]
    type = FeatureFloodCountAux
    variable = var_indices
    flood_counter = grain_center
    field_display = VARIABLE_COLORING
    execute_on = 'initial timestep_end'
  [../]
  [./centroids]
    type = FeatureFloodCountAux
    variable = centroids
    execute_on = 'initial timestep_end'
    field_display = CENTROID
    flood_counter = grain_center
  [../]
[]

[ICs]
  [./ic_eta0]
    int_width = 1.0
    x1 = 20.0
    y1 = 0.0
    radius = 14.0
    outvalue = 0.0
    variable = eta0
    invalue = 1.0
    type = SmoothCircleIC
  [../]
  [./IC_eta1]
    int_width = 1.0
    x1 = 30.0
    y1 = 25.0
    radius = 14.0
    outvalue = 0.0
    variable = eta1
    invalue = 1.0
    type = SmoothCircleIC
  [../]
  [./ic_c]
    type = SpecifiedSmoothCircleIC
    invalue = 1.0
    outvalue = 0.1
    int_width = 1.0
    x_positions = '20.0 30.0 '
    z_positions = '0.0 0.0 '
    y_positions = '0.0 25.0 '
    radii = '14.0 14.0'
    3D_spheres = false
    variable = c
    block = 0
  [../]
[]

[VectorPostprocessors]
  [./forces]
    type = GrainForcesPostprocessor
    grain_force = grain_force
  [../]
  [./grain_volumes]
    type = FeatureVolumeVectorPostprocessor
    flood_counter = grain_center
    execute_on = 'initial timestep_begin'
  [../]
[]

[UserObjects]
  [./grain_center]
    type = FauxGrainTracker
    outputs = none
    compute_var_to_feature_map = true
    execute_on = 'initial timestep_begin'
    variable = 'eta0 eta1'
  [../]
  [./grain_force]
    type = ComputeGrainForceAndTorque
    execute_on = 'linear nonlinear'
    grain_data = grain_center
    force_density = force_density
    c = c
    etas = 'eta0 eta1'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = NEWTON
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31   preonly   lu      1'
  l_max_its = 30
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  start_time = 0.0
  num_steps = 1
  dt = 0.1
[]

[Outputs]
  exodus = true
  csv = true
[]

(test/tests/outputs/recover/recover1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  file_base = recover_out
  exodus = true
  [./recover]
    type = Checkpoint
    file_base = test_recover_dir
  [../]
[]

(modules/porous_flow/test/tests/energy_conservation/heat02.i)

# checking that the heat-energy postprocessor correctly calculates the energy
# 1phase, constant porosity
[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 3
  xmin = 0
  xmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [temp]
  []
  [pp]
  []
[]

[ICs]
  [tinit]
    type = FunctionIC
    function = '100*x'
    variable = temp
  []
  [pinit]
    type = FunctionIC
    function = 'x'
    variable = pp
  []
[]

[Kernels]
  [dummyt]
    type = TimeDerivative
    variable = temp
  []
  [dummyp]
    type = TimeDerivative
    variable = pp
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 1
    density0 = 1
    viscosity = 0.001
    thermal_expansion = 0
    cv = 1.3
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [porosity]
    type = PorousFlowPorosity
    porosity_zero = 0.1
  []
  [rock_heat]
    type = PorousFlowMatrixInternalEnergy
    specific_heat_capacity = 2.2
    density = 0.5
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
[]

[Postprocessors]
  [total_heat]
    type = PorousFlowHeatEnergy
    phase = 0
  []
  [rock_heat]
    type = PorousFlowHeatEnergy
  []
  [fluid_heat]
    type = PorousFlowHeatEnergy
    include_porous_skeleton = false
    phase = 0
  []
[]

[Preconditioning]
  [andy]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it'
    petsc_options_value = 'bcgs bjacobi 1 1 10000'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = heat02
  csv = true
[]

(modules/ray_tracing/test/tests/traceray/adaptivity/adaptivity_3d.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 2
    ny = 2
    nz = 2
  []
[]

[Variables/u]
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 3
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Adaptivity]
  steps = 1
  marker = marker
  initial_marker = marker
  max_h_level = 2
  [Indicators/indicator]
    type = GradientJumpIndicator
    variable = u
  []
  [Markers/marker]
    type = ErrorFractionMarker
    indicator = indicator
    coarsen = 0.1
    refine = 0.1
  []
[]

[UserObjects/study]
  type = LotsOfRaysRayStudy
  ray_kernel_coverage_check = false
  vertex_to_vertex = true
  centroid_to_vertex = true
  centroid_to_centroid = true
  execute_on = timestep_end
[]

[RayBCs/kill]
  type = KillRayBC
  boundary = 'top right bottom left front back'
[]

[Postprocessors]
  [total_distance]
    type = RayTracingStudyResult
    study = study
    result = total_distance
    execute_on = timestep_end
  []
  [total_rays]
    type = RayTracingStudyResult
    study = study
    result = total_rays_started
    execute_on = timestep_end
  []
[]

[Outputs]
  exodus = false
  csv = true
[]

(modules/phase_field/test/tests/KKS_system/nonlinear.i)

#
# This test checks if the thwo phase and lagrange multiplier solutions can be replicated
# with a two order parameter approach, where the second order parameter eta2 is a
# nonlinear variable that is set as eta2 := 1 - eta1 (using Reaction, CoupledForce, and BodyForce)
# The solution is reproduced.
#

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 20
  xmax = 5
[]

[AuxVariables]
  [Fglobal]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Variables]
  # concentration
  [c]
    order = FIRST
    family = LAGRANGE
    [InitialCondition]
      type = FunctionIC
      function = x/5
    []
  []

  # order parameter 1
  [eta1]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.5
  []
  # order parameter 2
  [eta2]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.5
  []

  # phase concentration 1
  [c1]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.9
  []

  # phase concentration 2
  [c2]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.1
  []
[]

[Materials]
  # simple toy free energies
  [f1] # = fd
    type = DerivativeParsedMaterial
    property_name = F1
    coupled_variables = 'c1'
    expression = '(0.9-c1)^2'
  []
  [f2] # = fm
    type = DerivativeParsedMaterial
    property_name = F2
    coupled_variables = 'c2'
    expression = '(0.1-c2)^2'
  []

  # Switching functions for each phase
  [h1_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta1
    function_name = h1
  []
  [h2_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta2
    function_name = h2
  []

  # Coefficients for diffusion equation
  [Dh1]
    type = DerivativeParsedMaterial
    material_property_names = 'D h1(eta1)'
    expression = D*h1
    property_name = Dh1
    coupled_variables = eta1
  []
  [Dh2]
    type = DerivativeParsedMaterial
    material_property_names = 'D h2(eta2)'
    expression = D*h2
    property_name = Dh2
    coupled_variables = eta2
  []

  # Barrier functions for each phase
  [g1]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta1
    function_name = g1
  []
  [g2]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta2
    function_name = g2
  []

  # constant properties
  [constants]
    type = GenericConstantMaterial
    prop_names  = 'D   L   kappa'
    prop_values = '0.7 0.7 0.2'
  []
[]

[Kernels]
  #Kernels for diffusion equation
  [diff_time]
    type = TimeDerivative
    variable = c
  []
  [diff_c1]
    type = MatDiffusion
    variable = c
    diffusivity = Dh1
    v = c1
    args = 'eta1'
  []
  [diff_c2]
    type = MatDiffusion
    variable = c
    diffusivity = Dh2
    v = c2
    args = 'eta2'
  []

  # Kernels for Allen-Cahn equation for eta1
  [deta1dt]
    type = TimeDerivative
    variable = eta1
  []
  [ACBulkF1]
    type = KKSMultiACBulkF
    variable = eta1
    Fj_names = 'F1 F2 '
    hj_names = 'h1 h2 '
    gi_name = g1
    eta_i = eta1
    wi = 0.2
    coupled_variables = 'c1 c2 eta2'
  []
  [ACBulkC1]
    type = KKSMultiACBulkC
    variable = eta1
    Fj_names = 'F1 F2'
    hj_names = 'h1 h2'
    cj_names = 'c1 c2'
    eta_i = eta1
    coupled_variables = 'eta2'
  []
  [ACInterface1]
    type = ACInterface
    variable = eta1
    kappa_name = kappa
  []

  # Phase concentration constraints
  [chempot12]
    type = KKSPhaseChemicalPotential
    variable = c1
    cb = c2
    fa_name = F1
    fb_name = F2
  []
  [phaseconcentration]
    type = KKSMultiPhaseConcentration
    variable = c2
    cj = 'c1 c2'
    hj_names = 'h1 h2'
    etas = 'eta1 eta2'
    c = c
  []

  # equation for eta2 = 1 - eta1
  # 0 = eta2 + eta1 -1
  [constraint_eta1] #   eta2
    type = Reaction
    variable = eta2
  []
  [constraint_eta2] # + eta1
    type = CoupledForce
    variable = eta2
    coef = -1
    v = eta1
  []
  [constraint_one]  # - 1
    type = BodyForce
    variable = eta2
  []
[]

[AuxKernels]
  [Fglobal_total]
    type = KKSMultiFreeEnergy
    Fj_names = 'F1 F2 '
    hj_names = 'h1 h2 '
    gj_names = 'g1 g2 '
    variable = Fglobal
    w = 0.2
    interfacial_vars = 'eta1  eta2 '
    kappa_names      = 'kappa kappa'
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  petsc_options_iname = '-pc_type -sub_pc_factor_shift_type'
  petsc_options_value = 'lu       nonzero'
  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  nl_abs_tol = 1.0e-11

  end_time = 350
  dt = 10
[]

[VectorPostprocessors]
  [c]
    type = LineValueSampler
    variable = c
    start_point = '0 0 0'
    end_point = '5 0 0'
    num_points = 21
    sort_by = x
  []
[]

[Outputs]
  csv = true
  execute_on = FINAL
[]

(test/tests/multiapps/time_offset/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.2

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    type = TransientMultiApp
    input_files = 'sub.i'
    global_time_offset = 0.8
  [../]
[]

(test/tests/postprocessors/num_failed_timesteps/failed_timesteps_composition.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  [TimeSteppers]
    [constant_1]
      type = ConstantDT
      dt = 0.2
    []
    [constant_2]
      type = ConstantDT
      dt = 0.2
    []
  []
[]

[Problem]
  type = FailingProblem
  fail_steps = '1 1 1 2 4 5'
[]

[Postprocessors]
  [num_failed]
    type = NumFailedTimeSteps
  []
[]

(modules/level_set/test/tests/reinitialization/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 8
  ny = 8
  uniform_refine = 3 #1/64
[]

[AuxVariables]
  [./velocity]
    family = LAGRANGE_VEC
  [../]
[]

[Variables]
  [./phi]
  [../]
[]

[Functions]
  [./phi_exact]
    type = LevelSetOlssonBubble
    epsilon = 0.05
    center = '0.5 0.5 0'
    radius = 0.15
  [../]
  [./velocity_func]
    type = ParsedVectorFunction
    expression_x = '1'
    expression_y = '1'
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = phi
      auto_direction = 'x y'
    [../]
  [../]
[]

[ICs]
  [./phi_ic]
    type = FunctionIC
    function = phi_exact
    variable = phi
  [../]
  [./vel_ic]
    type = VectorFunctionIC
    variable = velocity
    function = velocity_func
  []
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = phi
  [../]

  [./advection]
    type = LevelSetAdvection
    velocity = velocity
    variable = phi
  [../]
[]

[Postprocessors]

  [./area]
    type = LevelSetVolume
    threshold = 0.5
    variable = phi
    location = outside
    execute_on = 'initial timestep_end'
  [../]

  [./cfl]
    type = LevelSetCFLCondition
    velocity = velocity
    execute_on = 'initial'
  [../]

[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  start_time = 0
  end_time = 1
  nl_rel_tol = 1e-12
  scheme = crank-nicolson
  petsc_options_iname = '-pc_type -pc_sub_type'
  petsc_options_value = 'asm      ilu'
  [./TimeStepper]
    type = PostprocessorDT
    postprocessor = cfl
    scale = 1
  [../]

[]

[MultiApps]
  [./reinit]
    type = LevelSetReinitializationMultiApp
    input_files = 'reinit.i'
    execute_on = 'timestep_end'
  [../]
[]

[Transfers]
  [./to_sub]
    type = MultiAppCopyTransfer
    variable = phi
    source_variable = phi
    to_multi_app = reinit
    execute_on = 'timestep_end'
  [../]

  [./to_sub_init]
    type = MultiAppCopyTransfer
    variable = phi_0
    source_variable = phi
    to_multi_app = reinit
    execute_on = 'timestep_end'
  [../]

  [./from_sub]
    type = MultiAppCopyTransfer
    variable = phi
    source_variable = phi
    from_multi_app = reinit
    execute_on = timestep_end
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/phase_field_kernels/CoupledAllenCahn.i)

#
# Test the coupled Allen-Cahn Bulk kernel
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmax = 12
  ymax = 12
  elem_type = QUAD4
[]

[Variables]
  [./w]
  [../]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 0.0
      y1 = 0.0
      radius = 6.0
      invalue = 0.9
      outvalue = 0.1
      int_width = 3.0
    [../]
  [../]
[]

[Kernels]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]

  [./ACBulk]
    type = CoupledAllenCahn
    variable = w
    v = eta
    f_name = F
  [../]

  [./W]
    type = Reaction
    variable = w
  [../]

  [./CoupledBulk]
    type = MatReaction
    variable = eta
    v = w
    reaction_rate = L
  [../]

  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = 1
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'L'
    prop_values = '1'
  [../]

  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'eta'
    expression = '2 * eta^2 * (1-eta)^2 - 0.2*eta'
    derivative_order = 2
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'PJFNK'

  l_max_its = 15
  l_tol = 1.0e-4

  nl_max_its = 10
  nl_rel_tol = 1.0e-11

  start_time = 0.0
  num_steps = 2
  dt = 0.5
[]

[Debug]
  show_var_residual_norms = true
[]

[Outputs]
  hide = w
  file_base = AllenCahn_out
  exodus = true
[]

(modules/porous_flow/test/tests/jacobian/line_sink04.i)

# PorousFlowPolyLineSink with 2-phase, 3-components, with enthalpy, internal_energy, and thermal_conductivity
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 2
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph0_sp1]
  []
  [massfrac_ph1_sp0]
  []
  [massfrac_ph1_sp1]
  []
  [temp]
  []
[]


[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp ppwater ppgas massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
    number_fluid_phases = 2
    number_fluid_components = 3
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
  [dummy_outflow]
    type = PorousFlowSumQuantity
  []
[]

[ICs]
  [temp]
    type = RandomIC
    variable = temp
    min = 1
    max = 2
  []
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph0_sp1]
    type = RandomIC
    variable = massfrac_ph0_sp1
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp1]
    type = RandomIC
    variable = massfrac_ph1_sp1
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_temp]
    type = TimeDerivative
    variable = temp
  []
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m01]
    type = TimeDerivative
    variable = massfrac_ph0_sp1
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
  [dummy_m11]
    type = TimeDerivative
    variable = massfrac_ph1_sp1
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
    cv = 1.1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
    cv = 1.8
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
  [thermal_conductivity]
    type = PorousFlowThermalConductivityIdeal
    dry_thermal_conductivity = '0.1 0.2 0.3 0.2 0 0.1 0.3 0.1 0.1'
  []
[]

[DiracKernels]
  [dirac0]
    type = PorousFlowPolyLineSink
    fluid_phase = 0
    variable = ppwater
    point_file = one_point.bh
    line_length = 1
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-0.9 1.5'
    fluxes = '-1.1 2.2'
  []
  [dirac1]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = ppgas
    line_length = 1
    use_relative_permeability = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -2.2'
  []
  [dirac2]
    type = PorousFlowPolyLineSink
    fluid_phase = 0
    variable = massfrac_ph0_sp0
    line_length = 1.3
    use_mobility = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac3]
    type = PorousFlowPolyLineSink
    fluid_phase = 0
    variable = massfrac_ph0_sp1
    line_length = 1.3
    use_enthalpy = true
    mass_fraction_component = 0
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac4]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = massfrac_ph1_sp0
    function_of = temperature
    line_length = 0.9
    mass_fraction_component = 1
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac5]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = temp
    line_length = 0.9
    mass_fraction_component = 2
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '1.1 -0.2'
  []
  [dirac6]
    type = PorousFlowPolyLineSink
    fluid_phase = 1
    variable = massfrac_ph0_sp0
    use_mobility = true
    function_of = temperature
    mass_fraction_component = 1
    use_relative_permeability = true
    use_internal_energy = true
    point_file = ten_points.bh
    SumQuantityUO = dummy_outflow
    p_or_t_vals = '-1.9 1.5'
    fluxes = '0 -0.2'
  []
[]


[Preconditioning]
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  file_base = line_sink04
[]

(tutorials/tutorial02_multiapps/step03_coupling/01_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [ut]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [force]
    type = CoupledForce
    variable = v
    v = ut
    coef = 100
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Postprocessors]
  [average_v]
    type = ElementAverageValue
    variable = v
  []
[]

(test/tests/time_steppers/time_stepper_system/AB2PredictorCorrector.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  nx = 10

  xmin = 0.0
  xmax = 1.0

[]

#still need BC for Energy, IC's for both.
[Variables]
  active = 'Time'

  [./Time]
    order =  FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
[]

[Functions]
  active = 'func'

  [./func]
    type = ParsedFunction
    expression = 2.0*t
  [../]
[]

[Kernels]
  active = 't_time func_time'

  [./t_time]
    type = TimeDerivative
    variable = Time
  [../]

  [./func_time]
    type = BodyForce
    variable = Time
    function = func
  [../]
[]

[BCs]
  active = 'Top_Temperature'

  [./Top_Temperature]
    type = NeumannBC
    variable = Time
    boundary = 'left right'
  [../]

[]

[Executioner]
  type = Transient
  scheme = 'BDF2'
  start_time = 0
  num_steps = 4
  nl_abs_tol = 1e-15
  petsc_options = '-snes_converged_reason'
  abort_on_solve_fail = true
  # Use the same test case as AB2PredictorCorrector test, add one more time stepper
  # to test if AB2PredictorCorrector works correctly with time stepper composition
 [TimeSteppers]
    [AB2]
      type = AB2PredictorCorrector
      dt = .01
      e_max = 10
      e_tol = 1
    []
    [IterationAdapDT]
      type = IterationAdaptiveDT
      dt = 100
    []
  []
[]

[Outputs]
  exodus = true
  file_base='aee_out'
[]

(test/tests/restart/restart_diffusion/restart_diffusion_test_transient_new_name.i)

[Mesh]
  file = steady_out.e
[]

[Variables]
  [./u_new]
    order = FIRST
    family = LAGRANGE

    # Testing that we can load a solution from a different variable name
    initial_from_file_var = u
    initial_from_file_timestep = 2
  [../]
[]

[Kernels]
  active = 'bodyforce ie'

  [./bodyforce]
    type = BodyForce
    variable = u_new
    value = 10.0
  [../]

  [./ie]
    type = TimeDerivative
    variable = u_new
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u_new
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u_new
    boundary = 1
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 10
  dt = .1
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/3d_1d_parent.i)

# This does a dummy diffusion solve in 3D space, then computes a layered average
# in the z direction. Those values are transferred into a sub-app that has 1D mesh
# in the z-direction (the mesh was displaced so that it is aligned in such a way).
# The sub-app also does a dummy diffusion solve and then computes layered average
# in the z-direction. Those value are transferred back to the parent app.
#
# Physically the 1D sub-app is placed in the center of the 3D mesh and is oriented
# in the z-direction.  The bounding box of the sub-app is expanded such that it
# contains the 4 central elements of the 3D mesh (i.e. the values are transferred
# only into a part of parent mesh)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 4
  ny = 4
  nz = 10
[]

[AuxVariables]
  [./from_sub_app_var]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[UserObjects]
  [main_uo]
    type = LayeredAverage
    direction = z
    num_layers = 10
    variable = u
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = front
    value = -1
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = back
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 5

  solve_type = 'NEWTON'
  l_tol = 1e-8
  nl_rel_tol = 1e-10
[]

[Outputs]
  exodus = true
  execute_on = final
[]

[MultiApps]
  [sub_app]
    positions = '0.5 0.5 0.0'
    type = TransientMultiApp
    input_files = 3d_1d_sub.i
    app_type = MooseTestApp
    bounding_box_padding = '0.25 0.25 0'
    bounding_box_inflation = 0
    use_displaced_mesh = true
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [layered_transfer_to_sub_app]
    type = MultiAppGeneralFieldUserObjectTransfer
    source_user_object = main_uo
    variable = sub_app_var
    to_multi_app = sub_app
    displaced_target_mesh = true

    # Cover the whole target mesh from the 1D line
    fixed_bounding_box_size = '2.1 2.1 0'
    from_app_must_contain_point = false
  []
  [layered_transfer_from_sub_app]
    type = MultiAppGeneralFieldUserObjectTransfer
    source_user_object = sub_app_uo
    variable = from_sub_app_var
    from_multi_app = sub_app
    displaced_source_mesh = true

    fixed_bounding_box_size = '0.25 0.25 0'
    from_app_must_contain_point = false
  []
[]

(modules/chemical_reactions/test/tests/desorption/langmuir_jac2.i)

# testing whether when we have a centre block containing 'conc' which is a CONSTANT MONOMIAL, we get the correct Jacobian
[Mesh]
  type = FileMesh
  file = three_eles.e
[]

[Variables]
  [./pressure]
  [../]
  [./conc]
    family = MONOMIAL
    order = CONSTANT
    block = centre_block
  [../]
[]

[ICs]
  [./p_ic]
    type = RandomIC
    variable = pressure
    min = -1
    max = 1
  [../]
  [./conc_ic]
    type = RandomIC
    variable = conc
    min = -1
    max = 1
    block = centre_block
  [../]
[]


[Kernels]
  [./p_dot] # this is just so a kernel is defined everywhere
    type = TimeDerivative
    variable = pressure
  [../]
  [./flow_from_matrix]
    type = DesorptionFromMatrix
    block = centre_block
    variable = conc
    pressure_var = pressure
  [../]
  [./flux_to_porespace]
    type = DesorptionToPorespace
    block = centre_block
    variable = pressure
    conc_var = conc
  [../]
[]

[Materials]
  [./nothing] # when any block contains a material, all blocks need to
    type = GenericConstantMaterial
    block = 'left_block centre_block right_block'
    prop_names = ''
    prop_values = ''
  [../]
  [./langmuir_params]
    type = MollifiedLangmuirMaterial
    block = centre_block
    one_over_desorption_time_const = 0.813E-10
    one_over_adsorption_time_const = 0.813E-10
    langmuir_density = 2.34
    langmuir_pressure = 1.5
    pressure_var = pressure
    conc_var = conc
  [../]
[]


[Preconditioning]
  [./andy]
    type = SMP
    full = true
    #petsc_options = '-snes_test_display'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = Newton
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = langmuir_jac2
[]

(modules/rdg/test/tests/advection_1d/rdgP0.i)

# This test demonstrates the advection of a tracer in 1D using the RDG module.
# There is no slope limiting.  Changing the SlopeLimiting scheme to minmod, mc,
# or superbee means that a linear reconstruction is performed, and the slope
# limited according to the scheme chosen.  Doing this produces RDG(P0P1) and
# substantially reduces numerical diffusion

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 100
  xmin = 0
  xmax = 1
[]

[Variables]
  [./tracer]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[ICs]
  [./tracer]
    type = FunctionIC
    variable = tracer
    function = 'if(x<0.1,0,if(x>0.3,0,1))'
  [../]
[]

[UserObjects]
  [./lslope]
    type = AEFVSlopeLimitingOneD
    execute_on = 'linear'
    scheme = 'none' #none | minmod | mc | superbee
    u = tracer
  [../]

  [./internal_side_flux]
    type = AEFVUpwindInternalSideFlux
    execute_on = 'linear'
    velocity = 0.1
  [../]

  [./free_outflow_bc]
    type = AEFVFreeOutflowBoundaryFlux
    execute_on = 'linear'
    velocity = 0.1
  [../]
[]

[Kernels]
  [./dot]
    type = TimeDerivative
    variable = tracer
  [../]
[]
[DGKernels]
  [./concentration]
    type = AEFVKernel
    variable = tracer
    component = 'concentration'
    flux = internal_side_flux
    u = tracer
  [../]
[]

[BCs]
  [./concentration]
    type = AEFVBC
    boundary = 'left right'
    variable = tracer
    component = 'concentration'
    flux = free_outflow_bc
    u = tracer
  [../]
[]

[Materials]
  [./aefv]
    type = AEFVMaterial
    slope_limiting = lslope
    u = tracer
  [../]
[]


[VectorPostprocessors]
  [./tracer]
    type = LineValueSampler
    start_point = '0 0 0'
    end_point = '1 0 0'
    num_points = 100
    sort_by = x
    variable = tracer
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  end_time = 6
  dt = 6E-1
  nl_abs_tol = 1E-8
  timestep_tolerance = 1E-3
[]

[Outputs]
  #exodus = true
  csv = true
  execute_on = final
[]

(modules/thermal_hydraulics/test/tests/components/form_loss_from_external_app_1phase/phy.form_loss_1phase.parent.i)

# This tests a form loss transfer using the MultiApp system.  A dummy heat
# conduction problem is solved, then the form loss evaluated and transferred
# to the child app side of the solve, then the child app solves and then the
# parent continues solving

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = 2
  nx = 10
[]

[Functions]
  [left_bc_fn]
    type = PiecewiseLinear
    x = '0   1'
    y = '300 310'
  []

  [K_prime_fn]
    type = ParsedFunction
    expression = 't*(2-x)*x'
  []
[]

[AuxVariables]
  [K_prime]
  []
[]

[AuxKernels]
  [K_prime_ak]
    type = FunctionAux
    variable = K_prime
    function = K_prime_fn
  []
[]

[Variables]
  [T]
  []
[]

[ICs]
  [T_ic]
    type = ConstantIC
    variable = T
    value = 300
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = T
  []

  [diff]
    type = Diffusion
    variable = T
  []
[]

[BCs]
  [left]
    type = FunctionDirichletBC
    variable = T
    boundary = left
    function = left_bc_fn
  []
[]

[Executioner]
  type = Transient
  dt = 0.5
  end_time = 5
  nl_abs_tol = 1e-10
  abort_on_solve_fail = true
[]

[MultiApps]
  [child]
    type = TransientMultiApp
    app_type = ThermalHydraulicsApp
    input_files = phy.form_loss_1phase.child.i
    execute_on = 'timestep_end'
  []
[]

[Transfers]
  [K_to_s]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = child
    source_variable = K_prime
    variable = K_prime
  []
[]

(modules/porous_flow/test/tests/poroperm/poro_tm.i)

# Test that porosity is correctly calculated.
# Porosity = 1 + (phi0 - 1) * exp(-vol_strain + thermal_exp_coeff * (temperature - ref_temperature))
# The parameters used are:
# phi0 = 0.5
# vol_strain = 0.5
# thermal_exp_coeff = 0.5
# temperature = 4
# ref_temperature = 3.5
# which yield porosity = 0.610599608464
[Mesh]
  type = GeneratedMesh
  dim = 3
[]

[GlobalParams]
  PorousFlowDictator = dictator
  displacements = 'disp_x disp_y disp_z'
[]

[Variables]
  [porepressure]
    initial_condition = 2
  []
  [temperature]
    initial_condition = 4
  []
  [disp_x]
  []
  [disp_y]
  []
  [disp_z]
  []
[]

[ICs]
  [disp_x]
    type = FunctionIC
    function = '0.5 * x'
    variable = disp_x
  []
[]

[Kernels]
  [dummy_p]
    type = TimeDerivative
    variable = porepressure
  []
  [dummy_t]
    type = TimeDerivative
    variable = temperature
  []
  [dummy_x]
    type = TimeDerivative
    variable = disp_x
  []
  [dummy_y]
    type = TimeDerivative
    variable = disp_y
  []
  [dummy_z]
    type = TimeDerivative
    variable = disp_z
  []
[]

[AuxVariables]
  [porosity]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [porosity]
    type = PorousFlowPropertyAux
    property = porosity
    variable = porosity
  []
[]

[Postprocessors]
  [porosity]
    type = PointValue
    variable = porosity
    point = '0 0 0'
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'porepressure temperature'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temperature
  []
  [eff_fluid_pressure]
    type = PorousFlowEffectiveFluidPressure
  []
  [total_strain]
    type = ComputeSmallStrain
  []
  [vol_strain]
    type = PorousFlowVolumetricStrain
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = porepressure
    capillary_pressure = pc
  []
  [porosity]
    type = PorousFlowPorosity
    mechanical = true
    thermal = true
    ensure_positive = false
    porosity_zero = 0.5
    thermal_expansion_coeff = 0.5
    reference_temperature = 3.5
  []
[]

[Executioner]
  solve_type = Newton
  type = Transient
  num_steps = 1
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/picard/picard_abs_tol_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-12
  fixed_point_max_its = 10
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_sub.i
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(test/tests/multiapps/picard_failure/picard_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_abs_tol = 1e-14
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  active = 'sub' # will be modified by CLI overrides
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_sub.i
  []
  [sub_no_fail]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_sub_no_fail.i
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(test/tests/multiapps/petsc_options/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 1
  l_max_its = 4
  nl_max_its = 2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  petsc_options = '-test'
  l_tol = 1e-12
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '0 0 0'
    input_files = sub.i
  [../]
[]

(test/tests/outputs/csv/csv_transient.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux0]
    order = SECOND
    family = SCALAR
  [../]
  [./aux1]
    family = SCALAR
    initial_condition = 5
  [../]
  [./aux2]
    family = SCALAR
    initial_condition = 10
  [../]
  [./aux_sum]
    family = SCALAR
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxScalarKernels]
  [./sum_nodal_aux]
    type = SumNodalValuesAux
    variable = aux_sum
    sum_var = u
    nodes = '1 2 3 4 5'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./mid_point]
    type = PointValue
    variable = u
    point = '0.5 0.5 0'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  verbose = true
[]

[Outputs]
  csv = true
[]

(modules/phase_field/test/tests/GrandPotentialPFM/SinteringDilute.i)

#input file to test the GrandPotentialSinteringMaterial using the dilute energy profile

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 17
  ny = 10
  xmin = 0
  xmax = 660
  ymin = 0
  ymax = 380
[]

[GlobalParams]
  op_num = 2
  var_name_base = gr
  int_width = 40
[]

[Variables]
  [./w]
    [./InitialCondition]
      type = FunctionIC
      variable = w
      function = f_w
    [../]
  [../]
  [./phi]
  [../]
  [./PolycrystalVariables]
  [../]
[]

[AuxVariables]
  [./T]
    order = CONSTANT
    family = MONOMIAL
    [./InitialCondition]
      type = FunctionIC
      variable = T
      function = f_T
    [../]
  [../]
[]

[ICs]
  [./phi_IC]
    type = SpecifiedSmoothCircleIC
    variable = phi
    x_positions = '190 470'
    y_positions = '190 190'
    z_positions = '  0   0'
    radii = '150 150'
    invalue = 0
    outvalue = 1
  [../]
  [./gr0_IC]
    type = SmoothCircleIC
    variable = gr0
    x1 = 190
    y1 = 190
    z1 = 0
    radius = 150
    invalue = 1
    outvalue = 0
  [../]
  [./gr1_IC]
    type = SmoothCircleIC
    variable = gr1
    x1 = 470
    y1 = 190
    z1 = 0
    radius = 150
    invalue = 1
    outvalue = 0
  [../]
[]

[Functions]
  [./f_T]
    type = ConstantFunction
    value = 1600
  [../]
  [./f_w]
    type = ParsedFunction
    expression = '1.515e-7 * x'
  [../]
[]

[Materials]
  # Free energy coefficients for parabolic curve
  [./kv]
    type = ParsedMaterial
    property_name = kv
    coupled_variables = 'T'
    constant_names = 'a b'
    constant_expressions = '-0.025 1571.6'
    expression = 'a*T + b'
  [../]
  # Diffusivity and mobilities
  [./chiD]
    type = GrandPotentialTensorMaterial
    f_name = chiD
    solid_mobility = L
    void_mobility = Lv
    chi = chi
    surface_energy = 19.7
    c = phi
    T = T
    D0 = 2.0e11
    GBmob0 = 1.4759e9
    Q = 2.77
    Em = 2.40
    bulkindex = 1
    gbindex = 20
    surfindex = 100
  [../]
  # Equilibrium vacancy concentration
  [./cs_eq]
    type = DerivativeParsedMaterial
    property_name = cs_eq
    coupled_variables = 'gr0 gr1 T'
    constant_names = 'Ef Egb kB'
    constant_expressions = '2.69 2.1 8.617343e-5'
    expression = 'bnds:=gr0^2 + gr1^2; cb:=exp(-Ef/kB/T); cgb:=exp(-(Ef-Egb)/kB/T);
                cb + 4.0*(cgb-cb)*(1.0 - bnds)^2'
  [../]
  # Everything else
  [./sintering]
    type = GrandPotentialSinteringMaterial
    chemical_potential = w
    void_op = phi
    Temperature = T
    surface_energy = 19.7
    grainboundary_energy = 9.86
    void_energy_coefficient = kv
    equilibrium_vacancy_concentration = cs_eq
    solid_energy_model = DILUTE
    outputs = exodus
  [../]

  # Concentration is only meant for output
  [./c]
    type = ParsedMaterial
    property_name = c
    material_property_names = 'hs rhos hv rhov'
    constant_names = 'Va'
    constant_expressions = '0.04092'
    expression = 'Va*(hs*rhos + hv*rhov)'
    outputs = exodus
  [../]
[]

[Kernels]
  [./dt_gr0]
    type = TimeDerivative
    variable = gr0
  [../]
  [./dt_gr1]
    type = TimeDerivative
    variable = gr1
  [../]
  [./dt_phi]
    type = TimeDerivative
    variable = phi
  [../]
  [./dt_w]
    type = TimeDerivative
    variable = w
  [../]
[]

[AuxKernels]
  [./T_aux]
    type = FunctionAux
    variable = T
    function = f_T
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = JFNK
  dt = 1
  num_steps = 2
  nl_abs_tol = 1e-10
[]

[Outputs]
  exodus = true
[]

(test/tests/functions/solution_function/solution_function_rot4.i)

# checking rotation of points by 45 deg about z axis in a SolutionUserObject for a 2D situation
[Mesh]
  # this is chosen so when i rotate through 45deg i get a length of "1" along the x or y direction
  type = GeneratedMesh
  dim = 2
  xmin = -0.70710678
  xmax = 0.70710678
  nx = 3
  ymin = -0.70710678
  ymax = 0.70710678
  ny = 3
[]

[UserObjects]
  [./solution_uo]
    type = SolutionUserObject
    mesh = square_with_u_equals_x.e
    timestep = 1
    system_variables = u
    rotation0_vector = '0 0 1'
    rotation0_angle = 45
    transformation_order = rotation0
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[ICs]
  [./u_init]
    type = FunctionIC
    variable = u
    function = solution_fcn
  [../]
[]

[Functions]
  [./solution_fcn]
    type = SolutionFunction
    from_variable = u
    solution = solution_uo
  [../]
[]

[Kernels]
  [./diff]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'NEWTON'

  l_max_its = 800
  nl_rel_tol = 1e-10
  num_steps = 1
  end_time = 1
  dt = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = solution_function_rot4
  exodus = true
[]

(modules/porous_flow/test/tests/aux_kernels/darcy_velocity_lower_except.i)

# Exception testing for PorousFlowDarcyVelocityComponentLowerDimensional
# Checking that an error is produced if the AuxVariable is not defined only on
# lower-dimensional elements
[Mesh]
  type = FileMesh
  file = fractured_block.e
[]

[GlobalParams]
  PorousFlowDictator = dictator
  gravity = '1 0.5 0.2'
[]

[Variables]
  [pp]
  []
[]

[Kernels]
  [dummy]
    type = TimeDerivative
    variable = pp
  []
[]

[AuxVariables]
  [fracture_vel_x]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[AuxKernels]
  [fracture_vel_x]
    type = PorousFlowDarcyVelocityComponentLowerDimensional
    variable = fracture_vel_x
    component = x
    fluid_phase = 0
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 1E16
    viscosity = 10
    density0 = 2
    thermal_expansion = 0
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '5 0 0 0 5 0 0 0 5'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

(test/tests/multiapps/catch_up/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1 # This will be constrained by the parent solve

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/picard_multilevel/picard_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [coupled_force]
    type = CoupledForce
    variable = u
    v = v
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub1]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_sub.i
    execute_on = 'timestep_end'
    # The input was originally created with effectively no restore
    # see the changes made for #5554 then reverted in #28115
    no_restore = true
  []
[]

[Transfers]
  [v]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub1
    source_variable = v
    variable = v
  []
[]

(test/tests/mesh/adapt/adapt_time_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  uniform_refine = 3
[]

[Variables]
  active = 'u v'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'udiff uconv uie vdiff vconv vie'

  [./udiff]
    type = Diffusion
    variable = u
  [../]

  [./uconv]
    type = Convection
    variable = u
    velocity = '10 1 0'
  [../]

  [./uie]
    type = TimeDerivative
    variable = u
  [../]

  [./vdiff]
    type = Diffusion
    variable = v
  [../]

  [./vconv]
    type = Convection
    variable = v
    velocity = '-10 1 0'
  [../]

  [./vie]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  active = 'uleft uright vleft vright'

  [./uleft]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./uright]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]

  [./vleft]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 1
  [../]

  [./vright]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 0
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 7
  dt = 0.1

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
    start_time = 0.2
    stop_time = 0.4
  [../]
[]

[Outputs]
  file_base = out_time
  exodus = true
  print_mesh_changed_info = true
[]

(test/tests/parser/cli_multiapp_all/dt_from_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

[MultiApps]
  [./sub_left]
    positions = '0 0 0  0.5 0.5 0  0.6 0.6 0  0.7 0.7 0'
    type = TransientMultiApp
    input_files = 'dt_from_parent_sub.i'
    app_type = MooseTestApp
  [../]

  [./sub_right]
    positions = '0 0 0  0.5 0.5 0  0.6 0.6 0  0.7 0.7 0'
    type = TransientMultiApp
    input_files = 'dt_from_parent_sub.i'
    app_type = MooseTestApp
  [../]
[]

(modules/external_petsc_solver/test/tests/external_petsc_problem/moose_as_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./v]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./cf]
    type = CoupledForce
    coef = 10000
    variable = u
    v=v
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-12

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Postprocessors]
  [./picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  [../]
[]

(test/tests/functions/linear_combination_function/except1.i)

# LinearCombinationFunction function test
# See [Functions] block for a description of the tests

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 10
[]

[Variables]
  [./dummy]
  [../]
[]

[Kernels]
  [./dummy_u]
    type = TimeDerivative
    variable = dummy
  [../]
[]


[AuxVariables]
  [./the_linear_combo]
  [../]
[]

[AuxKernels]
  [./the_linear_combo]
    type = FunctionAux
    variable = the_linear_combo
    function = the_linear_combo
  [../]
[]


[Functions]
  [./twoxplus1]
    type = ParsedFunction
    expression = 2*x+1
  [../]

  [./xsquared]
    type = ParsedFunction
    expression = x*x
  [../]

  [./the_linear_combo]
    type = LinearCombinationFunction
    functions = 'x twoxplus1 xsquared'
    w = '0.5 5 0.4 0.3'
  [../]

  [./should_be_answer]
    type = ParsedFunction
    expression = 0.5*x+5*(2*x+1)*0.4*x*x+0.3*7
  [../]
[]

[Postprocessors]
  [./should_be_zero]
    type = NodalL2Error
    function = should_be_answer
    variable = the_linear_combo
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.5
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  hide = dummy
  exodus = false
  csv = true
[]

(modules/stochastic_tools/test/tests/vectorpostprocessors/stochastic_results_complete_history/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

[Postprocessors]
  [avg]
    type = AverageNodalVariableValue
    variable = u
  []
[]

(test/tests/time_integrators/aee/aee.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  nx = 10

  xmin = 0.0
  xmax = 1.0

[]

#still need BC for Energy, IC's for both.
[Variables]
  active = 'Time'

  [./Time]
    order =  FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
[]

[Functions]
  active = 'func'

  [./func]
    type = ParsedFunction
    expression = 2.0*t
  [../]
[]

[Kernels]
  active = 't_time func_time'

  [./t_time]
    type = TimeDerivative
    variable = Time
  [../]

  [./func_time]
    type = BodyForce
    variable = Time
    function = func
  [../]
[]

[BCs]
  active = 'Top_Temperature'

  [./Top_Temperature]
    type = NeumannBC
    variable = Time
    boundary = 'left right'
  [../]

[]

[Executioner]
  type = Transient
  scheme = 'BDF2'
  #scheme = 'crank-nicolson'
  start_time = 0
  num_steps = 4
  nl_abs_tol = 1e-15
  petsc_options = '-snes_converged_reason'
  abort_on_solve_fail = true
 [./TimeStepper]
    type = AB2PredictorCorrector
    dt = .01
    e_max = 10
    e_tol = 1
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/mesh/adapt/displaced_adapt_test.i)

# Adaptivity on displaced problem
# - testing initial_refinement and adaptivity as well
#
# variables:
# - u and v_aux are used for displacing the problem
# - v is used to get some refinements
#

[Mesh]
  type = GeneratedMesh
  nx = 2
  ny = 2
  dim = 2
  uniform_refine = 3
  displacements = 'u aux_v'
[]

[Functions]
  [./aux_v_fn]
    type = ParsedFunction
    expression = x*(y-0.5)/5
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'udiff uie vdiff vconv vie'

  [./udiff]
    type = Diffusion
    variable = u
  [../]

  [./uie]
    type = TimeDerivative
    variable = u
  [../]

  [./vdiff]
    type = Diffusion
    variable = v
  [../]

  [./vconv]
    type = Convection
    variable = v
    velocity = '-10 1 0'
  [../]

  [./vie]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  active = 'uleft uright vleft vright'

  [./uleft]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./uright]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0.1
  [../]

  [./vleft]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 1
  [../]

  [./vright]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 0
  [../]
[]

[AuxVariables]
  [./aux_v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxKernels]
  [./aux_k_1]
    type = FunctionAux
    variable = aux_v
    function = aux_v_fn
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 2
  dt = .1

  [./Adaptivity]
    refine_fraction = 0.2
    coarsen_fraction = 0.3
    max_h_level = 4
  [../]
[]

[Outputs]
  exodus = true
  [./displaced]
    type = Exodus
    use_displaced = true
  [../]
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 20
  ny = 20
  nz = 20
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [multi_layered_average]
  []
  [element_multi_layered_average]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.001 # This will be constrained by the multiapp

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  l_tol = 1e-8
  nl_rel_tol = 1e-10
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    positions = '0.3 0.1 0.3 0.7 0.1 0.3'
    type = TransientMultiApp
    input_files = sub.i
    app_type = MooseTestApp
  []
[]

[Transfers]
  [layered_transfer]
    type = MultiAppGeneralFieldUserObjectTransfer
    source_user_object = layered_average
    variable = multi_layered_average
    from_multi_app = sub_app
    skip_coordinate_collapsing = true
    from_app_must_contain_point = false
    bbox_factor = 1.0000001
  []
  [element_layered_transfer]
    type = MultiAppGeneralFieldUserObjectTransfer
    source_user_object = layered_average
    variable = element_multi_layered_average
    from_multi_app = sub_app
    skip_coordinate_collapsing = true
    from_app_must_contain_point = false
    bbox_factor = 1.0000001
  []
[]

(modules/misc/test/tests/dynamic_loading/dynamic_obj_registration/dynamic_wrong_lib.i)

# This input file contains objects only available in solid_mechanics
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 2
  nz = 0
  xmax = 50
  ymax = 25
  zmax = 0
  elem_type = QUAD4
  uniform_refine = 2
[]

[Variables]
  [c]
    order = THIRD
    family = HERMITE
    [InitialCondition]
      type = BoundingBoxIC
      x1 = 15.0
      x2 = 35.0
      y1 = 0.0
      y2 = 25.0
      inside = 1.0
      outside = -0.8
      variable = c
    []
  []
[]

[Kernels]
  [ie_c]
    type = TimeDerivative
    variable = c
  []
  [CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  []
  [CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  []
[]

[BCs]
  [Periodic]
    [all]
      auto_direction = 'x y'
    []
  []
[]

[Materials]
  [constant]
    type = GenericConstantMaterial
    prop_names = 'M kappa_c'
    prop_values = '1.0 1.0'
    block = 0
  []
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 101'
  l_max_its = 15
  nl_max_its = 10
  start_time = 0.0
  num_steps = 2
  dt = 1.0
[]

[Outputs]
  exodus = true
[]

# Here we'll load the wrong library and check for the correct error condition
[Problem]
  register_objects_from = 'SolidMechanicsApp'
  library_path = '../../../../../solid_mechanics/lib'
[]

(modules/phase_field/test/tests/initial_conditions/polycrystalcircles_clipped.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 100
  ny = 56
  nz = 0
  xmin = 80
  xmax = 200
  ymin = 0
  ymax = 112
  zmin = 0
  zmax = 0
[]

[GlobalParams]
  op_num = 6
  var_name_base = gr
[]

[Variables]
  [./PolycrystalVariables]
  [../]
[]

[AuxVariables]
  [./unique_grains]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./var_indices]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./unique_grains]
    type = FeatureFloodCountAux
    variable = unique_grains
    flood_counter = grain_tracker
    field_display = UNIQUE_REGION
    execute_on = 'initial timestep_end'
  [../]
  [./var_indices]
    type = FeatureFloodCountAux
    variable = var_indices
    flood_counter = grain_tracker
    field_display = VARIABLE_COLORING
    execute_on = 'initial timestep_end'
  [../]
[]

[UserObjects]
  [./circle_IC]
    type = PolycrystalCircles
    file_name = 'circles.txt'
    read_from_file = true
    execute_on = 'initial'
    int_width = 2
  [../]
  [./grain_tracker]
    type = GrainTracker
    remap_grains = true
    compute_halo_maps = false
    polycrystal_ic_uo = circle_IC
  [../]
[]

[ICs]
  [./PolycrystalICs]
    [./PolycrystalColoringIC]
      polycrystal_ic_uo = circle_IC
    [../]
  [../]
[]

[Kernels]
  [./dt_gr0]
    type = TimeDerivative
    variable = gr0
  [../]
  [./dt_gr1]
    type = TimeDerivative
    variable = gr1
  [../]
  [./dt_gr2]
    type = TimeDerivative
    variable = gr2
  [../]
  [./dt_gr3]
    type = TimeDerivative
    variable = gr3
  [../]
  [./dt_gr4]
    type = TimeDerivative
    variable = gr4
  [../]
  [./dt_gr5]
    type = TimeDerivative
    variable = gr5
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  num_steps = 0
[]

[Outputs]
  exodus = true
  csv = false
[]

(test/tests/auxkernels/flux_average/flux_average.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./flux]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Functions]
  [./bc_func]
    type = ParsedFunction
    expression = y+1
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./flux_average]
    type = FluxAverageAux
    variable = flux
    coupled = u
    diffusivity = 0.1
    boundary = right
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = bc_func
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/time_steppers/time_stepper_system/multiple_timesequences.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 0.8
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  # Use as many different time sequence steppers as we could to test the compositionDT
  [TimeSteppers]
    [ConstDT1]
      type = ConstantDT
      dt = 0.2
    []

    [ConstDT2]
      type = ConstantDT
      dt = 0.1
    []

    [LogConstDT]
      type = LogConstantDT
      log_dt = 0.2
      first_dt = 0.1
    []

    [Timesequence1]
      type = TimeSequenceStepper
      time_sequence  = '0  0.25 0.3 0.5 0.8'
    []

    [Timesequence2]
      type = CSVTimeSequenceStepper
      file_name = timesequence.csv
      column_name = time
    []

    [Timesequence3]
      type = ExodusTimeSequenceStepper
      mesh = timesequence.e
    []
  []
[]

[Postprocessors]
  [timestep]
    type = TimePostprocessor
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  csv = true
  file_base='multiple_timesequences'
[]

(modules/phase_field/test/tests/conserved_noise/normal_masked.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmin = 0.0
  xmax = 10.0
  ymin = 0.0
  ymax = 10.0
  elem_type = QUAD4
[]

[Functions]
  [./mask_func]
    type = ParsedFunction
    expression = 'r:=sqrt((x-5)^2+(y-5)^2); if (r<3, 1.0, 0.0)'
  [../]
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = c
  [../]

  [./conserved_langevin]
    type = ConservedLangevinNoise
    amplitude = 0.5
    variable = c
    noise = normal_masked_noise
  []
[]

[BCs]
  [./Periodic]
    [./all]
      variable = c
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./mask_material]
    type = GenericFunctionMaterial
    prop_names  = 'mask_prop'
    prop_values = 'mask_func'
  [../]
[]

[UserObjects]
  [./normal_masked_noise]
    type = ConservedMaskedNormalNoise
    mask = mask_prop
  [../]
[]

[Postprocessors]
  [./total_c]
    type = ElementIntegralVariablePostprocessor
    variable = c
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'BDF2'

  #Preconditioned JFNK (default)
  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'

  l_max_its = 30
  l_tol = 1.0e-3

  nl_max_its = 30
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1.0e-10

  dt = 10.0
  num_steps = 4
[]

[Outputs]
  file_base = normal_masked
  [./csv]
    type = CSV
  [../]
[]

(modules/level_set/test/tests/reinitialization/reinit_modified.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 8
  ny = 8
  uniform_refine = 3
[]

[Variables]
  [./phi]
  [../]
[]

[AuxVariables]
  [./phi_0]
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = phi
      auto_direction = 'x y'
    [../]
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = phi
  [../]

  [./reinit]
    type = LevelSetOlssonReinitialization
    variable = phi
    phi_0 = phi_0
    epsilon = 0.05
    use_modified_reinitilization_formulation = true
  [../]
[]

[Problem]
  type = LevelSetReinitializationProblem
[]

[UserObjects]
  [./arnold]
    type = LevelSetOlssonTerminator
    tol = 1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  start_time = 0
  num_steps = 100
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-10
  scheme = crank-nicolson
  petsc_options_iname = '-pc_type -pc_sub_type -ksp_gmres_restart'
  petsc_options_value = 'hypre    boomeramg    300'
  [./TimeStepper]
    type = IterationAdaptiveDT
    dt = 0.001
    optimal_iterations = 5
    growth_factor = 5
  [../]
[]

(test/tests/misc/exception/parallel_exception_jacobian_transient.i)

[Mesh]
  file = 2squares.e
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./exception]
    type = ExceptionKernel
    variable = u
    when = jacobian
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./time_deriv]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  [../]
  [./right2]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  dtmin = 0.005
  solve_type = 'PJFNK'
  snesmf_reuse_base = false
[]

[Outputs]
  exodus = true
  print_nonlinear_converged_reason = false
  print_linear_converged_reason = false
[]

(modules/porous_flow/examples/multiapp_fracture_flow/diffusion_multiapp/matrix_app_heat.i)

# Heat energy from this fracture app is transferred to the matrix app
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 100
    xmin = 0
    xmax = 50.0
  []
[]

[Variables]
  [matrix_T]
  []
[]

[AuxVariables]
  [heat_from_frac]
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = matrix_T
  []
  [matrix_diffusion]
    type = Diffusion
    variable = matrix_T
  []
  [fromFrac]
    type = CoupledForce
    variable = matrix_T
    v = heat_from_frac
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]


[Outputs]
  print_linear_residuals = false
[]

(tutorials/tutorial02_multiapps/step01_multiapps/07_parent_multilevel.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 40
  ny = 40
  nz = 40
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Executioner]
  type = Transient
  end_time = 1
  dt = 1.

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

[MultiApps]
  [uno]
    type = TransientMultiApp
    positions   = '0 0 0  1 0 0'
    input_files = '07_sub_multilevel.i'
  []
[]

(test/tests/controls/time_periods/aux_kernels/control.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux0]
  [../]
  [./aux1]
  [../]
[]

[Functions]
  [./func]
    type = ParsedFunction
    expression = t*x*y
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./aux0]
    type = FunctionAux
    variable = aux0
    function = func
  [../]
  [./aux1]
    type = FunctionAux
    variable = aux1
    function = func
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Controls]
  [./damping_control]
    type = TimePeriod
    disable_objects    = 'AuxKernels::aux0 AuxKernels::aux1'
    start_time         = '0.25             0.55'
    end_time           = '0.65             0.75'
    execute_on         = 'initial timestep_begin'
  [../]
[]

(modules/phase_field/test/tests/flood_counter_periodic_test/nodal_flood_periodic.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 30
  ny = 30
  nz = 0

  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'diff forcing_1 forcing_2 forcing_3 forcing_4 dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing_1]
    type = GaussContForcing
    variable = u
    x_center = 1.0
    y_center = 1.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./forcing_2]
    type = GaussContForcing
    variable = u
    x_center = 20.0
    y_center = 39.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./forcing_3]
    type = GaussContForcing
    variable = u
    x_center = 39.0
    y_center = 20.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./forcing_4]
    type = GaussContForcing
    variable = u
    x_center = 15.0
    y_center = 15.0
    x_spread = 0.5
    y_spread = 0.5
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    [./x]
      variable = u
      auto_direction = 'x y'
    [../]
  [../]
[]

[Postprocessors]
  active = 'bubbles'

  [./bubbles]
    type = FeatureFloodCount
    variable = u
    threshold = 0.3
    execute_on = timestep_end
    flood_entity_type = NODAL
  [../]
[]

[Executioner]
  type = Transient
  dt = 4.0
  num_steps = 5

  [./Adaptivity]
    refine_fraction = .40
    coarsen_fraction = .02
    max_h_level = 3
    error_estimator = KellyErrorEstimator
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out
  exodus = true
[]

(test/tests/multiapps/cliargs_from_file/cliargs_sub_1.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 10
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

 [Outputs]
  exodus = true
[]

(modules/optimization/examples/simpleTransient/adjoint.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
    xmin = -1
    xmax = 1
    ymin = -1
    ymax = 1
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = u
    boundary = 'left right top bottom'
    value = 0
  []
[]

[Reporters]
  [measured_data]
    type = OptimizationData
    measurement_file = mms_data.csv
    file_xcoord = x
    file_ycoord = y
    file_zcoord = z
    file_time = t
    file_value = u
  []
[]

[DiracKernels]
  [misfit]
    type = ReporterTimePointSource
    variable = u
    value_name = measured_data/misfit_values
    x_coord_name = measured_data/measurement_xcoord
    y_coord_name = measured_data/measurement_ycoord
    z_coord_name = measured_data/measurement_zcoord
    time_name = measured_data/measurement_time
    reverse_time_end = 1
  []
[]

[VectorPostprocessors]
  [src_values]
    type = CSVReader
    csv_file = source_params.csv
    header = true
  []
[]

[Functions]
  [source]
    type = NearestReporterCoordinatesFunction
    x_coord_name = src_values/coordx
    y_coord_name = src_values/coordy
    time_name = src_values/time
    value_name = src_values/values
  []
[]

[VectorPostprocessors]
  [adjoint]
    type = ElementOptimizationSourceFunctionInnerProduct
    variable = u
    function = source
    reverse_time_end = 1
  []
[]

[Executioner]
  type = Transient

  num_steps = 100
  end_time = 1

  solve_type = NEWTON
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
  reuse_preconditioner=true
  reuse_preconditioner_max_linear_its=50
[]

[Outputs]
  console = false
[]

(modules/functional_expansion_tools/test/tests/standard_use/volume_coupled.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '3'
    physical_bounds = '0.0  10.0'
    x = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = volume_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Value_UserObject_Main
    multi_app_object_name = FX_Basis_Value_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(test/tests/transfers/multiapp_projection_transfer/fixed_meshes_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 5
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./from_sub]
  [../]
  [./elemental_from_sub]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 1
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.01
  solve_type = NEWTON
[]

[Outputs]
  exodus = true
  #
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0.0 0.0 0'
    input_files = fixed_meshes_sub.i
  [../]
[]

[Transfers]
  [./from_sub]
    type = MultiAppProjectionTransfer
    from_multi_app = sub
    source_variable = u
    variable = from_sub
    fixed_meshes = true
  [../]
  [./elemental_from_sub]
    type = MultiAppProjectionTransfer
    from_multi_app = sub
    source_variable = u
    variable = elemental_from_sub
    fixed_meshes = true
  [../]
  [./to_sub]
    type = MultiAppProjectionTransfer
    to_multi_app = sub
    source_variable = u
    variable = from_parent
    fixed_meshes = true
  [../]
  [./elemental_to_sub]
    type = MultiAppProjectionTransfer
    to_multi_app = sub
    source_variable = u
    variable = elemental_from_parent
    fixed_meshes = true
  [../]
[]

(test/tests/time_integrators/explicit-euler/ee-2d-linear-adapt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = (x+y)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*(x+y)
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
    lumping = true
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
    implicit = true
  [../]
[]

[Adaptivity]
  steps = 1
  marker = box
  max_h_level = 2
  [./Markers]
    [./box]
      bottom_left = '-0.4 -0.4 0'
      inside = refine
      top_right = '0.4 0.4 0'
      outside = do_nothing
      type = BoxMarker
    [../]
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'explicit-euler'

  start_time = 0.0
  num_steps = 4
  dt = 0.005
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(test/tests/time_steppers/iteration_adaptive/adapt_tstep_shrink_init_dt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmax = 5
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [dt]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 10
  []
  [right]
    type = NeumannBC
    variable = u
    boundary = right
    value = -1
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  start_time = 0.0
  dtmin = 1.0
  end_time = 10.0
  [TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 1
    linear_iteration_ratio = 1
    dt = 5.0
  []
[]

[Postprocessors]
  [_dt]
    type = TimestepSize
  []
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
  checkpoint = true
[]

(test/tests/multiapps/multilevel/time_dt_from_parent_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmax = 100
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    output_file = true
  [../]
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0 0.5 0.5 0'
    input_files = time_dt_from_parent_subsub.i
  [../]
[]

(tutorials/tutorial02_multiapps/step01_multiapps/04_sub2_multiple.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 2
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/auxkernels/time_integration/time_integration.i)

# This test covers the usage of the VariableTimeIntegrationAux
# kernel. Here we test three different schemes for integrating a field
# variable in time.  Midpoint, Trapezoidal, and Simpson's rule are
# used.  For this test, we use a manufactured solution and we compare
# the Trapezoidal and Simpson's rule, which must be exact for this
# exact solution, which is a linear function of time.
#
# The set up problem is
#
#  du/dt - Laplacian(u) = Q
#
# with exact solution: u = t*(x*x+y*y).
[Mesh]
  type = GeneratedMesh
  dim = 2
  elem_type = QUAD9
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
[]

[Functions]
  [./dts]
    type = PiecewiseLinear
    x = '0.01 0.1'
    y = '0.005 0.05'
  [../]
[]

[Variables]
  [./u]
    initial_condition = 0.0
    family = LAGRANGE
    order = SECOND
  [../]
[]

[Kernels]
  [./diff]
     type = Diffusion
     variable = u
  [../]
  [./timederivative]
     type = TimeDerivative
     variable = u
  [../]
  [./sourceterm]
     type = BodyForce
     variable = u
     function = Source
  [../]
[]

[AuxVariables]
  [./v_midpoint]
  [../]
  [./v_trapazoid]
  [../]
  [./v_simpson]
  [../]
[]

[AuxKernels]
  [./MidpointTimeIntegrator]
    type = VariableTimeIntegrationAux
    variable_to_integrate = u
    variable = v_midpoint
    order = 1
  [../]
  [./TrapazoidalTimeIntegrator]
    type = VariableTimeIntegrationAux
    variable_to_integrate = u
    variable = v_trapazoid
    order = 2
  [../]
  [./SimpsonsTimeIntegrator]
    type = VariableTimeIntegrationAux
    variable_to_integrate = u
    variable = v_simpson
    order = 3
  [../]
[]

[BCs]
 [./RightBC]
    type = FunctionDirichletBC
    variable = u
    function = RightBC
    boundary = 'right'
 [../]
 [./LeftBC]
    type = FunctionDirichletBC
    variable = u
    function = LeftBC
    boundary = 'left'
 [../]
 [./TopBC]
    type = FunctionDirichletBC
    variable = u
    function = TopBC
    boundary = 'top'
 [../]
 [./BottomBC]
    type = FunctionDirichletBC
    variable = u
    function = BottomBC
    boundary = 'bottom'
 [../]
[]

[Functions]
 [./Soln]
    type = ParsedFunction
    expression = 't*(x*x+y*y)'
 [../]
 [./Source]
    type = ParsedFunction
    expression = '(x*x + y*y) - 4*t'
 [../]
 [./TopBC]
    type = ParsedFunction
    expression = 't*(x*x+1)'
 [../]
 [./BottomBC]
    type = ParsedFunction
    expression = 't*x*x'
 [../]
 [./RightBC]
   type = ParsedFunction
   expression = 't*(y*y+1)'
 [../]
 [./LeftBC]
    type = ParsedFunction
    expression = 't*y*y'
  [../]
[]
[Postprocessors]
  [./l2_error]
    type = NodalL2Error
    variable = u
    function = Soln
  [../]
[]

[Executioner]
  type = Transient

  end_time = 0.1
#  dt = 0.1
#  num_steps = 10
  [./TimeStepper]
     type = FunctionDT
     function = dts
  [../]

  nl_abs_tol = 1.e-15
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/time_integrators/convergence/implicit_convergence.i)

[Mesh]
  type = GeneratedMesh
  dim  = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx   = 4
  ny   = 4
  elem_type = QUAD9
[]

[Variables]
  active = 'u'

  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
    preset = false
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  start_time = 0.0
  end_time = 1.0
  dt = 0.0625

 [./TimeIntegrator]
   type = ImplicitMidpoint
 [../]
[]

[Outputs]
  execute_on = 'initial timestep_end'
  exodus = true
[]

(modules/thermal_hydraulics/test/tests/misc/count_iterations/count_iterations.i)

# This tests the "Debug/count_iterations" parameter, which creates
# post-processors for numbers of linear and nonlinear iterations. A dummy
# diffusion solve is performed, and the numbers of iterations are stored in a
# CSV file.

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  coord_type = RZ
  rz_coord_axis = X
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [time_derivative]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  scheme = implicit-euler

  [TimeStepper]
    type = ConstantDT
    dt = 0.01
  []

  start_time = 0.0
  num_steps = 2
  abort_on_solve_fail = true

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
[]

[Outputs]
  csv = true
[]

[Debug]
  count_iterations = true
[]

(test/tests/time_integrators/actually_explicit_euler/diverged.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./nan]
    type = NanKernel
    variable = u
    timestep_to_nan = 4
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 'left'
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = 'right'
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.001
  l_tol = 1e-12
  dtmin = 1e-8

  [./TimeIntegrator]
    type = ActuallyExplicitEuler
    solve_type = lump_preconditioned
  [../]
[]

[Outputs]
  exodus = false
[]

(test/tests/time_integrators/explicit-euler/ee-1d-quadratic.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = -1
  xmax = 1
  nx = 20
  elem_type = EDGE3
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = x*x-2*t
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*x*x
  [../]
[]

[Variables]
  [./u]
    order = SECOND
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
#    lumping = true
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1'
    function = exact_fn
    implicit = true
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'explicit-euler'
  solve_type = 'LINEAR'

  l_tol = 1e-12
  start_time = 0.0
  num_steps = 20
  dt = 0.00005
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(tutorials/tutorial02_multiapps/step01_multiapps/06_parent_twoapps.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 40
  ny = 40
  nz = 40
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [force]
    type = BodyForce
    variable = u
    value = 1.
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Executioner]
  type = Transient
  end_time = 1
  dt = 1.

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

[MultiApps]
  [app1]
    type = TransientMultiApp
    positions   = '0 0 0  1 0 0  2 0 0'
    input_files = '06_sub_twoapps.i'
  []

  [app2]
    type = TransientMultiApp
    positions   = '0 0 0  1 0 0'
    input_files = '06_sub_twoapps.i'
  []
[]

(modules/level_set/examples/circle/circle_16.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 16
  ny = 16
[]

[Variables]
  [./phi]
  [../]
[]

[AuxVariables]
  [./velocity]
    family = LAGRANGE_VEC
  [../]
[]

[ICs]
  [./phi_ic]
    type = FunctionIC
    function = phi_exact
    variable = phi
  [../]
  [./vel_ic]
    type = VectorFunctionIC
    variable = velocity
    function = velocity_func
  []
[]

[Functions]
  [./phi_exact]
    type = LevelSetOlssonBubble
    epsilon = 0.05
    center = '0.5 0.5 0'
    radius = 0.15
  [../]
  [./velocity_func]
    type = ParsedVectorFunction
    expression_x = '3'
    expression_y = '3'
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      variable = phi
      auto_direction = 'x y'
    [../]
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = phi
  [../]

  [./advection]
    type = LevelSetAdvection
    velocity = velocity
    variable = phi
  [../]
[]

[Postprocessors]
  [./cfl]
    type = LevelSetCFLCondition
    velocity = velocity
    execute_on = 'initial'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  start_time = 0
  end_time = 1
  scheme = crank-nicolson
  petsc_options_iname = '-pc_type -pc_sub_type'
  petsc_options_value = 'asm      ilu'
  [./TimeStepper]
    type = PostprocessorDT
    postprocessor = cfl
    scale = 0.8
  [../]
[]

[Outputs]
  csv = true
  exodus = true
[]

(test/tests/misc/signal_handler/simple_transient_diffusion_scaled.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  uniform_refine = 2
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 50
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/variables/output_vars_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD9
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
  [../]

  # ODE variables
  [./x]
    family = SCALAR
    order = FIRST
    initial_condition = 1
  [../]
  [./y]
    family = SCALAR
    order = FIRST
    initial_condition = 2
  [../]
[]

[AuxVariables]
  [./elemental]
    order = CONSTANT
    family = MONOMIAL
  [../]

  [./elemental_restricted]
    order = CONSTANT
    family = MONOMIAL
  [../]

  [./nodal]
    order = FIRST
    family = LAGRANGE
  [../]

  [./nodal_restricted]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./conv_u]
    type = CoupledForce
    variable = u
    v = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[AuxKernels]
  [./elemental]
    type = ConstantAux
    variable = elemental
    value = 1
  [../]

  [./elemental_restricted]
    type = ConstantAux
    variable = elemental_restricted
    value = 1
  [../]

  [./nodal]
    type = ConstantAux
    variable = elemental
    value = 2
  [../]

  [./nodal_restricted]
    type = ConstantAux
    variable = elemental_restricted
    value = 2
  [../]
[]

[ScalarKernels]
  [./td1]
    type = ODETimeDerivative
    variable = x
  [../]
  [./ode1]
    type = ImplicitODEx
    variable = x
    y = y
  [../]

  [./td2]
    type = ODETimeDerivative
    variable = y
  [../]
  [./ode2]
    type = ImplicitODEy
    variable = y
    x = x
  [../]
[]

[BCs]
  active = 'left_u right_u left_v'

  [./left_u]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]

  [./right_u]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 9
  [../]

  [./left_v]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 5
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = 2
    value = 2
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  dt = 0.01
  num_steps = 1
[]

[Outputs]
  show = 'x u nodal elemental'
  [./out]
    type = Exodus
    elemental_as_nodal = true
    scalar_as_nodal = true
  [../]
[]

(modules/level_set/examples/vortex/vortex_supg.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmax = 1
  ymax = 1
  nx = 16
  ny = 16
  uniform_refine = 2
  elem_type = QUAD9
[]

[AuxVariables]
  [./velocity]
    family = LAGRANGE_VEC
  [../]
[]

[AuxKernels]
  [./vec]
    type = VectorFunctionAux
    variable = velocity
    function = velocity_func
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
[]

[Variables]
  [./phi]
    family = LAGRANGE
    order = FIRST
  [../]
[]

[Functions]
  [./phi_exact]
    type = LevelSetOlssonBubble
    epsilon = 0.01184
    center = '0.5 0.75 0'
    radius = 0.15
  [../]
  [./velocity_func]
    type = LevelSetOlssonVortex
    reverse_time = 2
  [../]
[]

[ICs]
  [./phi_ic]
    type = FunctionIC
    function = phi_exact
    variable = phi
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = phi
  [../]
  [./advection]
    type = LevelSetAdvection
    velocity = velocity
    variable = phi
  [../]
  [./advection_supg]
    type = LevelSetAdvectionSUPG
    velocity = velocity
    variable = phi
  [../]
  [./time_supg]
    type = LevelSetTimeDerivativeSUPG
    velocity = velocity
    variable = phi
  [../]
[]

[Postprocessors]
  [./area]
    type = LevelSetVolume
    threshold = 0.5
    variable = phi
    location = outside
    execute_on = 'initial timestep_end'
  [../]
  [./cfl]
    type = LevelSetCFLCondition
    velocity = velocity
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  start_time = 0
  end_time = 2
  scheme = crank-nicolson
  petsc_options_iname = '-pc_type -pc_sub_type'
  petsc_options_value = 'asm      ilu'
  [./TimeStepper]
    type = PostprocessorDT
    postprocessor = cfl
    scale = 0.8
  [../]
[]

[Outputs]
  csv = true
  exodus = true
[]

(modules/misc/test/tests/dynamic_loading/dynamic_obj_registration/dynamic_objects2.i)

# This input file contains some objects only available through heat_transfer
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 4
  ny = 2
  xmax = 50
  ymax = 25
  elem_type = QUAD4
  uniform_refine = 2
[]

[Variables]
  [c]
    order = THIRD
    family = HERMITE
  []
[]

[ICs]
  [c_IC]
    type = BoundingBoxIC
    x1 = 15.0
    x2 = 35.0
    y1 = 0.0
    y2 = 25.0
    inside = 1.0
    outside = -0.8
    variable = c
  []
[]

[Kernels]
  [ie_c]
    type = TimeDerivative
    variable = c
  []
  [d]
    type = Diffusion
    variable = c
  []
  [s]
    type = HeatSource
    variable = c
  []
[]

[BCs]
  [Periodic]
    [all]
      auto_direction = 'x y'
    []
  []
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 15
  nl_max_its = 10
  start_time = 0.0

  num_steps = 2
  dt = 1.0
[]

[Problem]
  register_objects_from = 'HeatTransferApp'
  library_path = '../../../../../heat_transfer/lib'
[]

(modules/phase_field/test/tests/Nucleation/parallel.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 100
  ny = 100
  nz = 0
  xmin = 0
  xmax = 20
  ymin = 0
  ymax = 20
[]

[GlobalParams]
  derivative_order = 2
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Kernels]
  [./c]
    type = Diffusion
    variable = c
  [../]
  [./dt]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./nucleation]
    type = DiscreteNucleation
    op_names  = c
    op_values = 1
    map = map
  [../]
[]

[UserObjects]
  [./inserter]
    type = DiscreteNucleationInserter
    hold_time = 1
    probability = 0.01
    radius = 4
  [../]
  [./map]
    type = DiscreteNucleationMap
    periodic = c
    inserter = inserter
  [../]
[]

[Postprocessors]
  [./sum]
    type = ElementIntegralMaterialProperty
    mat_prop = F
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  num_steps = 10
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  [./out]
    type = CSV
  [../]
[]

(test/tests/controls/time_periods/aux_scalar_kernels/control.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux0]
    family = SCALAR
  [../]
  [./aux1]
    family = SCALAR
  [../]
[]

[Functions]
  [./func]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxScalarKernels]
  [./scalar_aux0]
    type = FunctionScalarAux
    variable = aux0
    function = func
  [../]
  [./scalar_aux1]
    type = FunctionScalarAux
    variable = aux1
    function = func
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  csv = true
[]

[Controls]
  [./damping_control]
    type = TimePeriod
    disable_objects = '*/scalar_aux0 */scalar_aux1'
    start_time = 0.25
    end_time = 0.75
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/auxkernels/execute_on_cyclic/execute_on_cyclic.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[AuxVariables]
  [./aux0]
  [../]
  [./aux1]
  [../]
[]

[AuxKernels]
  [./aux0]
    type = CoupledAux
    variable = aux0
    coupled = aux1
    execute_on = linear
  [../]
  [./aux1]
    type = CoupledAux
    variable = aux1
    coupled = aux0
    execute_on = timestep_end
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(modules/phase_field/test/tests/phase_field_kernels/MatGradSquareCoupled.i)

#
# Test the MatGradSquareCoupled kernel
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmin = 0
  xmax = 50
  ymin = 0
  ymax = 50
  zmin = 0
  zmax = 50
  elem_type = QUAD4
[]

[Variables]
  [./w]
  [../]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = 25.0
      y1 = 25.0
      radius = 6.0
      invalue = 1.0
      outvalue = 0.0
      int_width = 3.0
    [../]
  [../]
[]

[Kernels]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
  [./ACBulk]
    type = CoupledAllenCahn
    variable = w
    v = eta
    f_name = F
    mob_name = 1
  [../]
  [./W]
    type = MatReaction
    variable = w
    reaction_rate = -1
  [../]
  [./CoupledBulk]
    type = MatReaction
    variable = eta
    v = w
    reaction_rate = L
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = 1
    mob_name = L
    coupled_variables = w
  [../]
# MatGradSquareCoupled kernel
  [./nabla_eta]
    type = MatGradSquareCoupled
    variable = w
    elec_potential = eta
    prefactor = 0.5
  [../]
[]

[Materials]
  [./mobility]
    type = DerivativeParsedMaterial
    property_name  = L
    coupled_variables = 'eta w'
    expression = '(1.5-eta)^2+(1.5-w)^2'
    derivative_order = 2
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'eta'
    expression = 'eta^2 * (1-eta)^2'
    derivative_order = 2
  [../]
[]

[Preconditioning]
  [./smp]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'PJFNK'

  l_max_its = 15
  l_tol = 1.0e-4

  nl_max_its = 10
  nl_rel_tol = 1.0e-11

  start_time = 0.0
  num_steps = 2
  dt = 0.5
[]

[Outputs]
  hide = w
  exodus = true
  console = true
[]

(test/tests/misc/rename-parameters/rename-coupled-scalar-var.i)

# This input file is used to test the Jacobian of an arbitrary ADScalarKernel.
# A test ADScalarKernel is used that uses values from other scalar variables,
# as well as a quantity computed in an elemental user object using a field
# variable.

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Kernels]
  [time_w]
    type = TimeDerivative
    variable = w
  []
  [diff_w]
    type = Diffusion
    variable = w
  []
[]

[ScalarKernels]
  [time_u]
    type = ADScalarTimeDerivative
    variable = u
  []
  [test_u]
    type = RenameCoupledScalarVarScalarKernel
    variable = u
    coupled_scalar_variable = v
    test_uo = test_uo
  []

  [time_v]
    type = ADScalarTimeDerivative
    variable = v
  []
[]

[UserObjects]
  [test_uo]
    type = TestADScalarKernelUserObject
    variable = w
    execute_on = 'LINEAR NONLINEAR'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    value = 0
    variable = w
    boundary = 'left'
  []
  [right]
    type = DirichletBC
    value = 1
    variable = w
    boundary = 'right'
  []
[]

[Variables]
  [u]
    family = SCALAR
    order = FIRST
    initial_condition = 1.0
  []
  [v]
    family = SCALAR
    order = FIRST
    initial_condition = 3.0
  []
  [w]
    family = LAGRANGE
    order = FIRST
    initial_condition = 3.0
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 1
  solve_type = NEWTON
[]

[Outputs]
  csv = true
[]

(modules/solid_mechanics/test/tests/jacobian/phe01.i)

# Capped weak-plane plasticity, Kernel = PlasticHeatEnergy
[Mesh]
  type = GeneratedMesh
  dim = 3
[]

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Variables]
  [./disp_x]
  [../]
  [./disp_y]
  [../]
  [./disp_z]
  [../]
[]

[Kernels]
  [./silly_phe]
    type = PlasticHeatEnergy
    coeff = 0.5
    variable = disp_x
  [../]
  [./dummy_disp_y]
    type = TimeDerivative
    variable = disp_y
  [../]
  [./dummy_disp_z]
    type = TimeDerivative
    variable = disp_z
  [../]
[]

[UserObjects]
  [./coh]
    type = SolidMechanicsHardeningExponential
    value_0 = 1
    value_residual = 2
    rate = 1
  [../]
  [./tanphi]
    type = SolidMechanicsHardeningExponential
    value_0 = 1.0
    value_residual = 0.5
    rate = 2
  [../]
  [./tanpsi]
    type = SolidMechanicsHardeningExponential
    value_0 = 0.1
    value_residual = 0.05
    rate = 3
  [../]
  [./t_strength]
    type = SolidMechanicsHardeningExponential
    value_0 = 100
    value_residual = 100
    rate = 1
  [../]
  [./c_strength]
    type = SolidMechanicsHardeningCubic
    value_0 = 1
    value_residual = 0
    internal_0 = -2
    internal_limit = 0
  [../]
[]

[Materials]
  [./phe]
    type = ComputePlasticHeatEnergy
  [../]
  [./elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    lambda = 1.0
    shear_modulus = 2.0
  [../]
  [./strain]
    type = ComputeIncrementalStrain
    displacements = 'disp_x disp_y disp_z'
    eigenstrain_names = ini_stress
  [../]
  [./ini_stress]
    type = ComputeEigenstrainFromInitialStress
    initial_stress = '0 0 0  0 0 1  0 1 -1.5'
    eigenstrain_name = ini_stress
  [../]
  [./admissible]
    type = ComputeMultipleInelasticStress
    inelastic_models = mc
    tangent_operator = nonlinear
  [../]
  [./mc]
    type = CappedWeakPlaneStressUpdate
    cohesion = coh
    tan_friction_angle = tanphi
    tan_dilation_angle = tanpsi
    tensile_strength = t_strength
    compressive_strength = c_strength
    max_NR_iterations = 20
    tip_smoother = 0
    smoothing_tol = 1
    yield_function_tol = 1E-10
    perfect_guess = false
  [../]
[]

[Preconditioning]
  [./andy]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  [../]
[]

[Executioner]
  type = Transient
  solve_type = Newton
[]

(modules/phase_field/test/tests/KKS_system/kks_example_offset.i)

#
# KKS toy problem in the split form
# This has an offset in the minima of the free energies so there will be a shift
# in equilibrium composition

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmin = -2.5
  xmax = 2.5
  ymin = -2.5
  ymax = 2.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[AuxVariables]
  [./Fglobal]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Variables]
  # order parameter
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]

  # hydrogen concentration
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]

  # chemical potential
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]

  # hydrogen phase concentration (matrix)
  [./cm]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
  # hydrogen phase concentration (delta phase)
  [./cd]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.0
  [../]
[]

[ICs]
  [./eta]
    variable = eta
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 0.2
    outvalue = 0.1
    int_width = 0.75
  [../]
  [./c]
    variable = c
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 0.6
    outvalue = 0.4
    int_width = 0.75
  [../]
[]


[BCs]
  [./Periodic]
    [./all]
      variable = 'eta w c cm cd'
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  # Free energy of the matrix
  [./fm]
    type = DerivativeParsedMaterial
    property_name = fm
    coupled_variables = 'cm'
    expression = '(0.1-cm)^2'
  [../]

  # Free energy of the delta phase
  [./fd]
    type = DerivativeParsedMaterial
    property_name = fd
    coupled_variables = 'cd'
    expression = '(0.9-cd)^2+0.5'
  [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   kappa'
    prop_values = '0.7 0.7 0.4  '
  [../]
[]

[Kernels]
  # full transient
  active = 'PhaseConc ChemPotVacancies CHBulk ACBulkF ACBulkC ACInterface dcdt detadt ckernel'

  # enforce c = (1-h(eta))*cm + h(eta)*cd
  [./PhaseConc]
    type = KKSPhaseConcentration
    ca       = cm
    variable = cd
    c        = c
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotVacancies]
    type = KKSPhaseChemicalPotential
    variable = cm
    cb       = cd
    fa_name  = fm
    fb_name  = fd
  [../]

  #
  # Cahn-Hilliard Equation
  #
  [./CHBulk]
    type = KKSSplitCHCRes
    variable = c
    ca       = cm
    fa_name  = fm
    w        = w
  [../]

  [./dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  [../]

  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = fm
    fb_name  = fd
    coupled_variables     = 'cm cd'
    w        = 0.4
  [../]
  [./ACBulkC]
    type = KKSACBulkC
    variable = eta
    ca       = cm
    cb       = cd
    fa_name  = fm
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[AuxKernels]
  [./GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fm
    fb_name = fd
    w = 0.4
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type -pc_factor_shift_type'
  petsc_options_value = ' asm    lu          nonzero                    nonzero'

  l_max_its = 100
  nl_max_its = 100
  num_steps = 3

  dt = 0.1
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]


[Outputs]
  file_base = kks_example_offset
  exodus = true
[]

(modules/functional_expansion_tools/test/tests/standard_use/interface_coupled.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0.0
  xmax = 0.4
  nx = 6
  ymin = 0.0
  ymax = 10.0
  ny = 20
[]

[Variables]
  [./m]
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./source_m]
    type = BodyForce
    variable = m
    value = 100
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    value = 2
    variable = m
  [../]
[]

[BCs]
  [./interface_value]
    type = FXValueBC
    variable = m
    boundary = right
    function = FX_Basis_Value_Main
  [../]
  [./interface_flux]
    type = FXFluxBC
    boundary = right
    variable = m
    function = FX_Basis_Flux_Main
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '4'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
  [./FX_Basis_Flux_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '5'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
[]

[UserObjects]
  [./FX_Flux_UserObject_Main]
    type = FXBoundaryFluxUserObject
    function = FX_Basis_Flux_Main
    variable = m
    boundary = right
    diffusivity = 0.1
  [../]
[]

[Postprocessors]
  [./average_interface_value]
    type = SideAverageValue
    variable = m
    boundary = right
  [../]
  [./total_flux]
    type = SideDiffusiveFluxIntegral
    variable = m
    boundary = right
    diffusivity = 0.1
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 1.0
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = interface_sub.i
    sub_cycling = true
  [../]
[]

[Transfers]
  [./FluxToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Flux_UserObject_Main
    multi_app_object_name = FX_Basis_Flux_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
  [./FluxToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Flux_Main
    multi_app_object_name = FX_Flux_UserObject_Sub
  [../]
[]

(modules/phase_field/test/tests/KKS_system/kks_example_nested.i)

#
# Two-phase nested KKS toy problem
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmin = -2.5
  xmax = 2.5
  ymin = -2.5
  ymax = 2.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[AuxVariables]
  [Fglobal]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Variables]
  # order parameter
  [eta]
    order = FIRST
    family = LAGRANGE
  []

  # hydrogen concentration
  [c]
    order = FIRST
    family = LAGRANGE
  []

  # chemical potential
  [w]
    order = FIRST
    family = LAGRANGE
  []
[]

[ICs]
  [eta]
    variable = eta
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 0.2
    outvalue = 0.1
    int_width = 0.75
  []
  [c]
    variable = c
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 1.5
    invalue = 0.6
    outvalue = 0.4
    int_width = 0.75
  []
[]

[BCs]
  [Periodic]
    [all]
      variable = 'eta w c'
      auto_direction = 'x y'
    []
  []
[]

[Materials]
  # Free energy of the matrix
  [fm]
    type = DerivativeParsedMaterial
    property_name = fm
    expression = '(0.1-cm)^2'
    material_property_names = 'cm'
    additional_derivative_symbols = 'cm'
    compute = false
  []

  # Free energy of the delta phase
  [fd]
    type = DerivativeParsedMaterial
    property_name = fd
    expression = '(0.9-cd)^2'
    material_property_names = 'cd'
    additional_derivative_symbols = 'cd'
    compute = false
  []

  # Compute phase concentrations
  [PhaseConcentrationMaterial]
    type = KKSPhaseConcentrationMaterial
    global_cs = 'c'
    ci_names = 'cm cd'
    ci_IC = '0 0'
    fa_name = fm
    fb_name = fd
    h_name = h
    min_iterations = 1
    max_iterations = 100
    absolute_tolerance = 1e-9
    relative_tolerance = 1e-9
    nested_iterations = iter
    outputs = exodus
  []

  # Compute chain rule terms
  [PhaseConcentrationDerivatives]
    type = KKSPhaseConcentrationDerivatives
    global_cs = 'c'
    eta = eta
    ci_names = 'cm cd'
    fa_name = fm
    fb_name = fd
    h_name = h
  []

  # h(eta)
  [h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  []

  # g(eta)
  [g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  []

  # constant properties
  [constants]
    type = GenericConstantMaterial
    prop_names = 'M   L   kappa'
    prop_values = '0.7 0.7 0.4  '
  []
[]

[Kernels]
  # full transient
  active = 'CHBulk ACBulkF ACBulkC ACInterface dcdt detadt ckernel'

  #
  # Cahn-Hilliard Equation
  #
  [CHBulk]
    type = NestedKKSSplitCHCRes
    variable = c
    global_cs = 'c'
    w = w
    all_etas = eta
    ca_names = 'cm cd'
    fa_name = fm
    coupled_variables = 'eta w'
  []
  [dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  []
  [ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  []

  #
  # Allen-Cahn Equation
  #
  [ACBulkF]
    type = NestedKKSACBulkF
    variable = eta
    global_cs = 'c'
    ci_names = 'cm cd'
    fa_name = fm
    fb_name = fd
    g_name = g
    h_name = h
    mob_name = L
    w = 0.4
    coupled_variables = 'c'
  []
  [ACBulkC]
    type = NestedKKSACBulkC
    variable = eta
    global_cs = 'c'
    ci_names = 'cm cd'
    fa_name = fm
    h_name = h
    mob_name = L
    coupled_variables = 'c'
  []
  [ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = kappa
  []
  [detadt]
    type = TimeDerivative
    variable = eta
  []
[]

[AuxKernels]
  [GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fm
    fb_name = fd
    w = 0.4
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options_iname = '-pctype -sub_pc_type -sub_pc_factor_shift_type -pc_factor_shift_type'
  petsc_options_value = ' asm    lu          nonzero                    nonzero'

  l_max_its = 100
  nl_max_its = 100
  num_steps = 3

  dt = 0.1
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [full]
    type = SMP
    full = true
  []
[]

[Outputs]
  file_base = kks_example_nested
  exodus = true
[]

(test/tests/adaptivity/scalar/scalar_adaptivity.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmin = -0.5
  xmax = 0.5
  ymin = -0.5
  ymax = 0.5
[]

[Variables]
  [scalar]
    order = THIRD
    family = SCALAR
  []
  [u]
    [InitialCondition]
      type = FunctionIC
      function = 'x*x+y*y'
    []
  []
[]

[Kernels]
  [u_dot]
    type = TimeDerivative
    variable = u
  []
  [c_res]
    type = Diffusion
    variable = u
  []
[]

[ScalarKernels]
  [d1]
    type = ODETimeDerivative
    variable = scalar
  []
[]

[BCs]
  [Periodic]
    [all]
      auto_direction = 'x y'
      variable = 'u'
    []
  []
[]

[Preconditioning]
  [SMP]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -sub_pc_type'
  petsc_options_value = 'asm         lu     '
  num_steps = 2
[]

[Adaptivity]
  initial_steps = 2
  max_h_level = 2
  marker = EFM
  [Markers]
    [EFM]
      type = ErrorFractionMarker
      coarsen = 0.2
      refine = 0.8
      indicator = GJI
    []
  []
  [Indicators]
    [GJI]
      type = GradientJumpIndicator
      variable = u
    []
  []
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/newmark-beta/newmark_beta_prescribed_parameters.i)

###########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of the TimeIntegrator system.
#
# Testing that the first and second time derivatives
# are calculated correctly using the Newmark-Beta method
#
# @Requirement F1.30
###########################################################

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 1
  ny = 1
[]

[Variables]
  [u]
  []
[]

[Functions]
  [forcing_fn]
    type = PiecewiseLinear
    x = '0.0 0.1 0.2    0.3  0.4    0.5  0.6'
    y = '0.0 0.0 0.0025 0.01 0.0175 0.02 0.02'
  []
[]

[Kernels]
  [ie]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [left]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left'
    function = forcing_fn
  []
  [right]
    type = FunctionDirichletBC
    variable = u
    boundary = 'right'
    function = forcing_fn
  []
[]

[Executioner]
  type = Transient
  start_time = 0.0
  num_steps = 6
  dt = 0.1
  [TimeIntegrator]
    type = NewmarkBeta
    beta = 0.4225
    gamma = 0.8
  []
[]

[Postprocessors]
  [udot]
    type = ElementAverageTimeDerivative
    variable = u
  []
  [udotdot]
    type = ElementAverageSecondTimeDerivative
    variable = u
  []
  [u]
    type = ElementAverageValue
    variable = u
  []
[]

[Outputs]
  csv = true
[]

(test/tests/test_harness/csvdiff_comparison.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [./x_field]
    type = PointValue
    variable = u
    point = '0.5 0.5 0'
  [../]
  [./y_field]
    type = PointValue
    variable = u
    point = '0.25 0.25 0'
  [../]
  [./z_field]
    type = PointValue
    variable = u
    point = '0.75 0.75 0'
  [../]
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/output_in_position/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/time_integrators/actually_explicit_euler/actually_explicit_euler.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 'left'
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 'right'
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.001
  l_tol = 1e-12

  [./TimeIntegrator]
    type = ActuallyExplicitEuler
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/controls/time_periods/nodalkernels/nodal.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./nodal_ode]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[NodalKernels]
  [./td]
    type = TimeDerivativeNodalKernel
    variable = nodal_ode
  [../]
  [./constant_rate]
    type = ConstantRate
    variable = nodal_ode
    rate = 1.0
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
[]

[Controls]
  [./time_period]
    type = TimePeriod
    enable_objects = '*::constant_rate'
    start_time = 0.5
    end_time = 1
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/examples/kim-kim-suzuki/kks_example_noflux.i)

#
# KKS simple example in the split form
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 150
  ny = 15
  nz = 0
  xmin = -25
  xmax = 25
  ymin = -2.5
  ymax = 2.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[AuxVariables]
  [./Fglobal]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Variables]
  # order parameter
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]

  # solute concentration
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]

  # chemical potential
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]

  # Liquid phase solute concentration
  [./cl]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.1
  [../]
  # Solid phase solute concentration
  [./cs]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.9
  [../]
[]

[Functions]
  [./ic_func_eta]
    type = ParsedFunction
    expression = '0.5*(1.0-tanh((x)/sqrt(2.0)))'
  [../]
  [./ic_func_c]
    type = ParsedFunction
    expression = '0.9*(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10)+0.1*(1-(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10))'
  [../]
[]


[ICs]
  [./eta]
    variable = eta
    type = FunctionIC
    function = ic_func_eta
  [../]
  [./c]
    variable = c
    type = FunctionIC
    function = ic_func_c
  [../]
[]

[Materials]
  # Free energy of the liquid
  [./fl]
    type = DerivativeParsedMaterial
    property_name = fl
    coupled_variables = 'cl'
    expression = '(0.1-cl)^2'
  [../]

  # Free energy of the solid
  [./fs]
    type = DerivativeParsedMaterial
    property_name = fs
    coupled_variables = 'cs'
    expression = '(0.9-cs)^2'
  [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   eps_sq'
    prop_values = '0.7 0.7 1.0  '
  [../]
[]

[Kernels]
  active = 'PhaseConc ChemPotSolute CHBulk ACBulkF ACBulkC ACInterface dcdt detadt ckernel'

  # enforce c = (1-h(eta))*cl + h(eta)*cs
  [./PhaseConc]
    type = KKSPhaseConcentration
    ca       = cl
    variable = cs
    c        = c
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotSolute]
    type = KKSPhaseChemicalPotential
    variable = cl
    cb       = cs
    fa_name  = fl
    fb_name  = fs
  [../]

  #
  # Cahn-Hilliard Equation
  #
  [./CHBulk]
    type = KKSSplitCHCRes
    variable = c
    ca       = cl
    fa_name  = fl
    w        = w
  [../]

  [./dcdt]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./ckernel]
    type = SplitCHWRes
    mob_name = M
    variable = w
  [../]

  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = fl
    fb_name  = fs
    w        = 1.0
    coupled_variables = 'cl cs'
  [../]
  [./ACBulkC]
    type = KKSACBulkC
    variable = eta
    ca       = cl
    cb       = cs
    fa_name  = fl
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = eps_sq
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[AuxKernels]
  [./GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fl
    fb_name = fs
    w = 1.0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type'
  petsc_options_value = 'asm      ilu          nonzero'

  l_max_its = 100
  nl_max_its = 100

  num_steps = 50
  dt = 0.1
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]


[VectorPostprocessors]
  [./c]
    type =  LineValueSampler
    start_point = '-25 0 0'
    end_point = '25 0 0'
    variable = c
    num_points = 151
    sort_by =  id
    execute_on = timestep_end
  [../]
  [./eta]
    type =  LineValueSampler
    start_point = '-25 0 0'
    end_point = '25 0 0'
    variable = eta
    num_points = 151
    sort_by =  id
    execute_on = timestep_end
  [../]

[]

[Outputs]
  exodus = true
  [./csv]
    type = CSV
    execute_on = final
  [../]
[]

(test/tests/mesh/named_entities/periodic_bc_names_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  nz = 0
  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
  # This test will not work in parallel with DistributedMesh enabled
  # due to a bug in PeriodicBCs.
  parallel_type = replicated
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'diff forcing dot'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = GaussContForcing
    variable = u
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    [./x]
      variable = u
      primary = 'left'
      secondary = 'right'
      translation = '40 0 0'
    [../]

    [./y]
      variable = u
      primary = 'bottom'
      secondary = 'top'
      translation = '0 40 0'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 20
  solve_type = NEWTON
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(modules/phase_field/test/tests/MultiPhase/mixedswitchingfunctionmaterial.i)

# This is a test of the MixedSwitchingfunctionmaterial
# Several mixed type of switching function with ajustable weight parameter

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 20
  xmin = 0
  xmax = 20
  ymin = 0
  ymax = 20
  elem_type = QUAD4
[]

[Variables]
  [./eta]
  [../]
[]

[ICs]
  [./IC_eta]
    type = SmoothCircleIC
    variable = eta
    x1 = 10
    y1 = 10
    radius = 5
    invalue = 1
    outvalue = 0
    int_width = 1
  [../]
[]

[Kernels]
  [./eta_bulk]
    type = AllenCahn
    variable = eta
    f_name = F
  [../]
  [./eta_interface]
    type = ACInterface
    variable = eta
    kappa_name = kappa_eta
  [../]

  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'L kappa_eta'
    prop_values = '1.0 1.0'
  [../]

  [./switching]
    type = MixedSwitchingFunctionMaterial
    function_name = h
    eta = eta
    h_order = MIX234
    weight = 1.0
  [../]

  [./barrier]
    type = BarrierFunctionMaterial
    eta = eta
    g_order = SIMPLE
  [../]

# Total free energy: F = Fa*(1-h) + Fb*h
  [./free_energy]
    type = DerivativeTwoPhaseMaterial
    property_name = F
    fa_name = '0'
    fb_name = '-1'
    eta = eta
    W = 3.1
    derivative_order = 2
    outputs = exodus
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = 'PJFNK'

  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  nl_abs_tol = 1.0e-12
  start_time = 0.0
  num_steps = 2

  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 9
    iteration_window = 2
    growth_factor = 1.1
    cutback_factor = 0.75
    dt = 0.3
  [../]
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/auxkernels/forcing_function_aux/forcing_function_aux.i)

# This is a test of the ForcingFunctionAux AuxKernel.
# The diffusion equation for u is solved with boundary conditions to force a gradient
# du/dx = 2, which is constant in time.
# du/dx is integrated over the unit square domain using a postprocessor, resulting in 2.
# The value of this postprocessor is supplied to the forcing function f used by
# the ForcingFunctionAux AuxKernel, which increments the AuxVariable T.
# Since the time step is 1, the value of T increases by 2 for each time step.

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./grad_u_x]
    order = CONSTANT
    family = MONOMIAL
    initial_condition = 2
  [../]
  [./T]
    order = CONSTANT
    family = MONOMIAL
    initial_condition = 100
  [../]
[]

[Functions]
  [./u_ic_func]
    type = ParsedFunction
    expression = '2*x'
  [../]
  [./f]
    type = ParsedFunction
    symbol_names = f
    symbol_values = grad_int
    expression = f
  [../]
[]

[ICs]
  [./u_ic]
    type = FunctionIC
    variable = u
    function = u_ic_func
  [../]
[]

[Kernels]
  [./dudt]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[AuxKernels]
  [./grad_u_x_aux]
    type = VariableGradientComponent
    variable = grad_u_x
    component = x
    gradient_variable = u
  [../]
  [./T_increment]
    type = ForcingFunctionAux
    variable = T
    function = f
  [../]
[]

[Postprocessors]
  [./grad_int]
    type = ElementIntegralVariablePostprocessor
    variable = grad_u_x
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 2
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-10
  num_steps = 2
  dt = 1
[]

[Outputs]
  exodus = true
[]

(test/tests/auxkernels/nodal_aux_var/nodal_aux_ts_test.i)

#
# Testing nodal aux variables that are computed only at the end of the time step
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 3
  ny = 3
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  active = 'aux1 aux2'

  [./aux1]
    order = FIRST
    family = LAGRANGE
  [../]

  [./aux2]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'ie diff force'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  #Coupling of nonlinear to Aux
  [./force]
    type = CoupledForce
    variable = u
    v = aux2
  [../]
[]

[AuxKernels]
  active = 'constant field'

  #Simple Aux Kernel
  [./constant]
    variable = aux1
    type = ConstantAux
    value = 1
  [../]

  #Shows coupling of Aux to nonlinear
  [./field]
    variable = aux2
    type = CoupledAux
    value = 2
    coupled = u
    execute_on = timestep_end
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  start_time = 0
  dt = 0.1
  num_steps = 2


  solve_type = 'PJFNK'
[]

[Outputs]
  file_base = out_ts
  exodus = true
[]

(test/tests/kernels/ode/ode_sys_impl_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 2
  ny = 2
  elem_type = QUAD4
[]

[Functions]
  [./f_fn]
    type = ParsedFunction
    expression = -4
  [../]
  [./bc_all_fn]
    type = ParsedFunction
    expression = x*x+y*y
  [../]

  # ODEs
  [./exact_x_fn]
    type = ParsedFunction
    expression = (-1/3)*exp(-t)+(4/3)*exp(5*t)
  [../]
[]

# NL

[Variables]
  [./u]
    family = LAGRANGE
    order = FIRST
  [../]

  # ODE variables
  [./x]
    family = SCALAR
    order = FIRST
    initial_condition = 1
  [../]
  [./y]
    family = SCALAR
    order = FIRST
    initial_condition = 2
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./uff]
    type = BodyForce
    variable = u
    function = f_fn
  [../]
[]

[ScalarKernels]
  [./td1]
    type = ODETimeDerivative
    variable = x
  [../]
  [./ode1]
    type = ImplicitODEx
    variable = x
    y = y
  [../]

  [./td2]
    type = ODETimeDerivative
    variable = y
  [../]
  [./ode2]
    type = ImplicitODEy
    variable = y
    x = x
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = bc_all_fn
  [../]
[]

[Postprocessors]
  active = 'exact_x l2err_x'

  [./exact_x]
    type = FunctionValuePostprocessor
    function = exact_x_fn
    execute_on = 'initial timestep_end'
    point = '0 0 0'
  [../]

  [./l2err_x]
    type = ScalarL2Error
    variable = x
    function = exact_x_fn
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0
  dt = 0.01
  num_steps = 100

  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

(test/tests/executioners/nl_divergence_tolerance/nl_divergence_tolerance.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
[]

[Variables]
  [./u]
    scaling = 1e-5
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    preset = false
    boundary = left
    value = -1000
  [../]
  [./right]
    type = DirichletBC
    variable = u
    preset = false
    boundary = right
    value = 100000
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'implicit-euler'
  line_search = 'none'
  solve_type = PJFNK

  l_max_its = 20
  nl_max_its = 20
  nl_div_tol = 10

  dt = 1
  num_steps = 3

  petsc_options = '-snes_converged_reason -ksp_converged_reason '
  petsc_options_iname = '-pc_type -pc_hypre_type '
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/phase_field_kernels/CahnHilliard.i)

#
# Test the non-split parsed function free enery Cahn-Hilliard Bulk kernel
# The free energy used here has the same functional form as the CHPoly kernel
# If everything works, the output of this test should replicate the output
# of marmot/tests/chpoly_test/CHPoly_test.i (exodiff match)
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 16
  ny = 16
  xmax = 50
  ymax = 50
  elem_type = QUAD4
[]

[Variables]
  [./cv]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./InitialCondition]
    type = CrossIC
    x1 = 5.0
    y1 = 5.0
    x2 = 45.0
    y2 = 45.0
    variable = cv
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = cv
  [../]
  [./CHSolid]
    type = CahnHilliard
    variable = cv
    f_name = F
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = cv
    mob_name = M
    kappa_name = kappa_c
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1 0.1'
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = F
    coupled_variables = 'cv'
    expression = '(1-cv)^2 * (1+cv)^2'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 15
  l_tol = 1.0e-4
  nl_max_its = 10
  nl_rel_tol = 1.0e-11

  start_time = 0.0
  num_steps = 2
  dt = 0.7
[]

[Outputs]
  [./out]
    type = Exodus
    refinements = 1
  [../]
[]

(test/tests/functions/generic_function_material/generic_function_material_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Functions]
  [./diff_func]
    type = ParsedFunction
    expression = 1/t
  [../]
[]

[Kernels]
  [./diff]
    type = GenericDiffusion
    variable = u
    property = diffusion
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./conv]
    type = Convection
    variable = u
    velocity = '1 0 0'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Materials]
  [./gfm]
    type = GenericFunctionMaterial
    block = 0
    prop_names = diffusion
    prop_values = diff_func
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/postprocessors/pps_interval/pps_bad_interval3.i)

[Mesh]
  file = square-2x2-nodeids.e
  # This test can only be run with renumering disabled, so the
  # NodalVariableValue postprocessor's node id is well-defined.
  allow_renumbering = false
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '1'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '2'
    value = 0
  [../]
[]

[Postprocessors]
  active = 'l2 node1 node4'

  [./l2]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./node1]
    type = NodalVariableValue
    variable = u
    nodeid = 15
  [../]

  [./node4]
    type = NodalVariableValue
    variable = v
    nodeid = 10
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = ignore_bad
  time_step_interval = 2
  exodus = true
[]

(test/tests/multiapps/output_in_position/multilevel_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = parent.i
    output_in_position = true
  [../]
[]

(test/tests/time_integrators/explicit-euler/ee-1d-linear.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = -1
  xmax = 1
  nx = 200
  elem_type = EDGE2
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = x
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*x
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = FunctionIC
      function = ic
    [../]
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
    lumping = true
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    preset = false
    boundary = '0 1'
    function = exact_fn
    implicit = true
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'explicit-euler'
  solve_type = 'LINEAR'

  start_time = 0.0
  num_steps = 20
  dt = 0.00005
[]

[Outputs]
  exodus = true
  [./console]
    type = Console
    max_rows = 10
  [../]
[]

(test/tests/userobjects/setup_interface_count/internal_side.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 2
    ny = 2
  []
  [./right_side]
    input = gen
    type = SubdomainBoundingBoxGenerator
    bottom_left = '0 0 0'
    top_right = '1 0.5 0'
    block_id = 1
  [../]
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [./initial] # 1 per simulation
    type = InternalSideSetupInterfaceCount
    count_type = 'initial'
    execute_on = 'initial timestep_begin timestep_end'
  [../]
  [./timestep] # once per timestep
    type = InternalSideSetupInterfaceCount
    count_type = 'timestep'
    execute_on = 'initial timestep_begin timestep_end'
  [../]
  [./subdomain] # 1 on initial and 2 for each timestep
    type = InternalSideSetupInterfaceCount
    count_type = 'subdomain'
    execute_on = 'initial timestep_begin timestep_end'
  [../]
  [./initialize] # 1 for initial and 2 for each timestep
    type = InternalSideSetupInterfaceCount
    count_type = 'initialize'
    execute_on = 'initial timestep_begin timestep_end'
  [../]
  [./finalize] # 1 for initial and 2 for each timestep
    type = InternalSideSetupInterfaceCount
    count_type = 'finalize'
    execute_on = 'initial timestep_begin timestep_end'
  [../]
  [./execute] # 4 for initial and 8 for each timestep
    type = InternalSideSetupInterfaceCount
    count_type = 'execute'
    execute_on = 'initial timestep_begin timestep_end'
  [../]
  [./threadjoin] # 1 for initial and 2 for each timestep
    type = InternalSideSetupInterfaceCount
    count_type = 'threadjoin'
    execute_on = 'initial timestep_begin timestep_end'
  [../]
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/reset/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(modules/stochastic_tools/test/tests/transfers/sampler_transfer/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

[Postprocessors]
  [left_bc]
    type = PointValue
    point = '0 0 0'
    variable = u
  []
  [right_bc]
    type = PointValue
    point = '1 0 0'
    variable = u
  []
[]

[Outputs]
  csv = true
[]

(test/tests/postprocessors/change_over_time/change_over_time.i)

# This test tests the ChangeOverTimePostprocessor, which computes the change
# in a postprocessor value with respect to the previous value or with respect to
# the initial value. This test creates a time-dependent function postprocessor
# and then computes its change over a timestep. The FE problem used here is a
# dummy problem and has no effect on the test.

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 5
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./time_derivative]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = Diffusion
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  start_time = 0.0
  dt = 1.0
  num_steps = 2
[]

[Functions]
  [./my_function]
    type = ParsedFunction
    expression = '1 + t * t'
  [../]
[]

[Postprocessors]
  [./my_postprocessor]
    type = FunctionValuePostprocessor
    function = my_function
    execute_on = 'initial timestep_end'
  [../]
  [./change_over_time]
    type = ChangeOverTimePostprocessor
    postprocessor = my_postprocessor
    change_with_respect_to_initial = false
    execute_on = 'initial timestep_end'
  [../]
[]

[Outputs]
  file_base = 'change_over_time_previous'
  csv = true
[]

(modules/combined/test/tests/DiffuseCreep/stress_flux_n_gb_relax.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 2
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = FunctionIC
      function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);0.1+0.1*v'
    [../]
  [../]
  [./mu]
  [../]
  [./jx]
  [../]
  [./jy]
  [../]
  [./disp_x]
  [../]
  [./disp_y]
  [../]
[]

[AuxVariables]
  [./gb]
    family = LAGRANGE
    order  = FIRST
  [../]
  [./creep_strain_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./creep_strain_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./creep_strain_xy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./stress_xy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
[]

[Kernels]
  [./conc]
    type = CHSplitConcentration
    variable = c
    mobility = mobility_prop
    chemical_potential_var = mu
  [../]
  [./chempot]
    type = CHSplitChemicalPotential
    variable = mu
    chemical_potential_prop = mu_prop
    c = c
  [../]
  [./flux_x]
    type = CHSplitFlux
    variable = jx
    component = 0
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./flux_y]
    type = CHSplitFlux
    variable = jy
    component = 1
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
  [./TensorMechanics]
    displacements = 'disp_x disp_y'
  [../]
[]

[AuxKernels]
  [./gb]
    type = FunctionAux
    variable = gb
    function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);v'
  [../]
  [./creep_strain_xx]
    type = RankTwoAux
    variable = creep_strain_xx
    rank_two_tensor = creep_strain
    index_i = 0
    index_j = 0
  [../]
  [./creep_strain_yy]
    type = RankTwoAux
    variable = creep_strain_yy
    rank_two_tensor = creep_strain
    index_i = 1
    index_j = 1
  [../]
  [./creep_strain_xy]
    type = RankTwoAux
    variable = creep_strain_xy
    rank_two_tensor = creep_strain
    index_i = 0
    index_j = 1
  [../]
  [./stress_xx]
    type = RankTwoAux
    variable = stress_xx
    rank_two_tensor = stress
    index_i = 0
    index_j = 0
  [../]
  [./stress_yy]
    type = RankTwoAux
    variable = stress_yy
    rank_two_tensor = stress
    index_i = 1
    index_j = 1
  [../]
  [./stress_xy]
    type = RankTwoAux
    variable = stress_xy
    rank_two_tensor = stress
    index_i = 0
    index_j = 1
  [../]
[]

[Materials]
  [./chemical_potential]
    type = DerivativeParsedMaterial
    block = 0
    property_name = mu_prop
    coupled_variables = c
    expression = 'c'
    derivative_order = 1
  [../]
  [./var_dependence]
    type = DerivativeParsedMaterial
    block = 0
    expression = 'c*(1.0-c)'
    coupled_variables = c
    property_name = var_dep
    derivative_order = 1
  [../]
  [./mobility]
    type = CompositeMobilityTensor
    block = 0
    M_name = mobility_prop
    tensors = diffusivity
    weights = var_dep
    args = c
  [../]
  [./phase_normal]
    type = PhaseNormalTensor
    phase = gb
    normal_tensor_name = gb_normal
  [../]
  [./aniso_tensor]
    type = GBDependentAnisotropicTensor
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = aniso_tensor
  [../]
  [./diffusivity]
    type = GBDependentDiffusivity
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = diffusivity
  [../]
  [./diffuse_strain_increment]
    type = FluxBasedStrainIncrement
    xflux = jx
    yflux = jy
    gb = gb
    property_name = diffuse
  [../]
  [./gb_relax_prefactor]
    type = DerivativeParsedMaterial
    block = 0
    expression = '0.01*(c-0.15)*gb'
    coupled_variables = 'c gb'
    property_name = gb_relax_prefactor
    derivative_order = 1
  [../]
  [./gb_relax]
    type = GBRelaxationStrainIncrement
    property_name = gb_relax
    prefactor_name = gb_relax_prefactor
    gb_normal_name = gb_normal
  [../]
  [./creep_strain]
    type = SumTensorIncrements
    tensor_name = creep_strain
    coupled_tensor_increment_names = 'diffuse gb_relax'
  [../]
  [./strain]
   type = ComputeIncrementalStrain
    displacements = 'disp_x disp_y'
  [../]
  [./stress]
    type = ComputeStrainIncrementBasedStress
    inelastic_strain_names = creep_strain
  [../]
  [./elasticity_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '120.0 80.0'
    fill_method = symmetric_isotropic
  [../]
[]

[BCs]
  [./Periodic]
    [./cbc]
      auto_direction = 'x y'
      variable = c
    [../]
  [../]
  [./fix_x]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0
  [../]
  [./fix_y]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK

  petsc_options_iname = '-pc_type -ksp_grmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  preonly       lu           1'

  nl_rel_tol = 1e-10
  nl_max_its = 5

  l_tol = 1e-4
  l_max_its = 20

  dt = 1
  num_steps = 5
[]

[Preconditioning]
  [./smp]
     type = SMP
     full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/materials/derivative_material_interface/ad_parsed_material.i)

#
# Test the parsed function free enery Allen-Cahn Bulk kernel
#

[Mesh]
  type = GeneratedMesh
  dim = 2
[]

[Variables]
  [./eta]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = x
    [../]
  [../]
[]

[Kernels]
  [./diff]
    type = ADMatDiffusion
    variable = eta
    diffusivity = F
  [../]
  [./dt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[Materials]
  [./consts]
    type = ADParsedMaterial
    coupled_variables  = 'eta'
    expression ='(eta-0.5)^2'
    outputs = exodus
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/transfers/multiapp_postprocessor_to_scalar/sub2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 2
  [../]
[]

[Postprocessors]
  [./point_value]
    type = PointValue
    variable = u
    point = '1 1 0'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  nl_rel_tol = 1e-12
[]

[Outputs]
  exodus = true
[]

(modules/solid_mechanics/test/tests/power_law_creep/restart1.i)

# 1x1x1 unit cube with uniform pressure on top face

[GlobalParams]
  displacements = 'disp_x disp_y disp_z'
[]

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
[]

[Variables]
  [temp]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1000.0
  []
[]

[Problem]
  allow_initial_conditions_with_restart = true
[]

[Physics/SolidMechanics/QuasiStatic]
  [all]
    strain = FINITE
    incremental = true
    add_variables = true
    generate_output = 'stress_yy creep_strain_xx creep_strain_yy creep_strain_zz elastic_strain_yy'
  []
[]

[Functions]
  [top_pull]
    type = PiecewiseLinear
    x = '0 1'
    y = '1 1'
  []
[]

[Kernels]
  [heat]
    type = Diffusion
    variable = temp
  []
  [heat_ie]
    type = TimeDerivative
    variable = temp
  []
[]

[BCs]
  [u_top_pull]
    type = Pressure
    variable = disp_y
    boundary = top
    factor = -10.0e6
    function = top_pull
  []
  [u_bottom_fix]
    type = DirichletBC
    variable = disp_y
    boundary = bottom
    value = 0.0
  []
  [u_yz_fix]
    type = DirichletBC
    variable = disp_x
    boundary = left
    value = 0.0
  []
  [u_xy_fix]
    type = DirichletBC
    variable = disp_z
    boundary = back
    value = 0.0
  []
  [temp_fix]
    type = DirichletBC
    variable = temp
    boundary = 'bottom top'
    value = 1000.0
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 2e11
    poissons_ratio = 0.3
  []
  [radial_return_stress]
    type = ComputeMultipleInelasticStress
    tangent_operator = elastic
    inelastic_models = 'power_law_creep'
  []
  [power_law_creep]
    type = PowerLawCreepStressUpdate
    coefficient = 1.0e-15
    n_exponent = 4
    activation_energy = 3.0e5
    temperature = temp
  []
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options = '-snes_ksp'
  petsc_options_iname = '-ksp_gmres_restart'
  petsc_options_value = '101'

  line_search = 'none'

  l_max_its = 20
  nl_max_its = 20
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-6
  l_tol = 1e-5
  start_time = 0.0
  end_time = 1.0
  num_steps = 6
  dt = 0.1
[]

[Outputs]
  exodus = true
  [out]
    type = Checkpoint
    num_files = 1
  []
[]

(test/tests/postprocessors/pps_interval/pps_interval_mismatch.i)

[Mesh]
  file = square-2x2-nodeids.e
  # This test can only be run with renumering disabled, so the
  # NodalVariableValue postprocessor's node id is well-defined.
  allow_renumbering = false
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '1'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '2'
    value = 0
  [../]
[]

[Postprocessors]
  active = 'l2 node1 node4'

  [./l2]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./node1]
    type = NodalVariableValue
    variable = u
    nodeid = 15
  [../]

  [./node4]
    type = NodalVariableValue
    variable = v
    nodeid = 10
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 1
[]

[Outputs]
  time_step_interval = 4
  exodus = true
  [./console]
    type = Console
    time_step_interval = 3
  [../]
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/3d_1d_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
  elem_type = EDGE2
  displacements = 'disp_x disp_y disp_z'
[]

[Functions]
  [disp_x_fn]
    type = ParsedFunction
    expression = '-x'
  []
  [disp_z_fn]
    type = ParsedFunction
    expression = 'x'
  []
[]

[AuxVariables]
  [sub_app_var]
    family = MONOMIAL
    order = CONSTANT
  []

  [disp_x]
  []
  [disp_y]
  []
  [disp_z]
  []
[]

[AuxKernels]
  [disp_x_ak]
    type = FunctionAux
    variable = disp_x
    function = 'disp_x_fn'
  []
  [disp_y_ak]
    type = ConstantAux
    variable = disp_y
    value = 0
  []
  [disp_z_ak]
    type = FunctionAux
    variable = disp_z
    function = 'disp_z_fn'
  []
[]

[UserObjects]
  [sub_app_uo]
    type = LayeredAverage
    direction = z
    variable = u
    num_layers = 10
    execute_on = TIMESTEP_END
    use_displaced_mesh = true
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 1
  []

  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 2
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
[]

[Outputs]
  exodus = true
[]

(test/tests/materials/stateful_prop/stateful_prop_test.i)

[Mesh]
  dim = 3
  file = cube.e
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./prop1]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./heat]
    type = MatDiffusionTest
    variable = u
    prop_name = thermal_conductivity
    prop_state = 'old'                  # Use the "Old" value to compute conductivity
  [../]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./prop1_output]
    type = MaterialRealAux
    variable = prop1
    property = thermal_conductivity
  [../]

  [./prop1_output_init]
    type = MaterialRealAux
    variable = prop1
    property = thermal_conductivity
    execute_on = initial
  [../]
[]

[BCs]
  [./bottom]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0.0
  [../]
  [./top]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1.0
  [../]
[]

[Materials]
  [./stateful]
    type = StatefulTest
    prop_names = thermal_conductivity
    prop_values = 1.0
  [../]
[]

[Postprocessors]
  [./integral]
    type = ElementAverageValue
    variable = prop1
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  l_max_its = 10
  start_time = 0.0
  num_steps = 5
  dt = .1
[]

[Outputs]
  file_base = out
  exodus = true
  csv = true
[]

(test/tests/misc/dont_overghost/test_properly_ghosted.i)

[Mesh]
  type = FileMesh
  file = constraints.e
  # NearestNodeLocator, which is needed by TiedValueConstraint,
  # only works with ReplicatedMesh currently
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = 4
    value = 1
  []
[]

[Constraints]
  [complete]
    type = TiedValueConstraint
    variable = u
    secondary = 2
    primary = 3
    primary_variable = u
  []
  [lower]
    type = TiedValueConstraint
    variable = u
    secondary = inside_right_lower
    primary = inside_left_lower
    primary_variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Postprocessors]
  [test_time_type]
    type = TestVectorType
    system = nl
    vector = TIME
    vector_type = ghosted
  []
  [test_nontime_type]
    type = TestVectorType
    system = nl
    vector = NONTIME
    vector_type = ghosted
  []
[]

(modules/porous_flow/test/tests/aux_kernels/darcy_velocity_lower.i)

# checking that the PorousFlowDarcyVelocityComponentLowerDimensional AuxKernel works as expected
# for the fully-saturated case (relative-permeability = 1)
# The fractured_block.e has size = 10x10x10, and a fracture running through its
# centre, with normal = (0, -sin(20deg), cos(20deg))
# Porepressure is initialised to grad(P) = (0, 0, 1)
# Fluid_density = 2
# viscosity = 10
# relative_permeability = 1
# permeability = (5, 5, 5)  (in the bulk)
# permeability = (10, 10, 10)   (in the fracture)
# aperture = 1
# gravity = (1, 0.5, 0.2)
# So Darcy velocity in the bulk = (1, 0.5, -0.3)
# in the fracture grad(P) = (0, 0.3213938, 0.11697778)
# In the fracture the projected gravity vector is
# tangential_gravity = (1, 0.5057899, 0.18409245)
# So the Darcy velocity in the fracture = (2, 0.690186, 0.251207)

[Mesh]
  type = FileMesh
  file = fractured_block.e
[]

[GlobalParams]
  PorousFlowDictator = dictator
  gravity = '1 0.5 0.2'
[]

[Variables]
  [pp]
  []
[]

[ICs]
  [pinit]
    type = FunctionIC
    function = z
    variable = pp
  []
[]

[Kernels]
  [dummy]
    type = TimeDerivative
    variable = pp
  []
[]

[AuxVariables]
  [bulk_vel_x]
    order = CONSTANT
    family = MONOMIAL
  []
  [bulk_vel_y]
    order = CONSTANT
    family = MONOMIAL
  []
  [bulk_vel_z]
    order = CONSTANT
    family = MONOMIAL
  []
  [fracture_vel_x]
    order = CONSTANT
    family = MONOMIAL
    block = 3
  []
  [fracture_vel_y]
    order = CONSTANT
    family = MONOMIAL
    block = 3
  []
  [fracture_vel_z]
    order = CONSTANT
    family = MONOMIAL
    block = 3
  []
[]

[AuxKernels]
  [bulk_vel_x]
    type = PorousFlowDarcyVelocityComponent
    variable = bulk_vel_x
    component = x
    fluid_phase = 0
  []
  [bulk_vel_y]
    type = PorousFlowDarcyVelocityComponent
    variable = bulk_vel_y
    component = y
    fluid_phase = 0
  []
  [bulk_vel_z]
    type = PorousFlowDarcyVelocityComponent
    variable = bulk_vel_z
    component = z
    fluid_phase = 0
  []
  [fracture_vel_x]
    type = PorousFlowDarcyVelocityComponentLowerDimensional
    variable = fracture_vel_x
    component = x
    fluid_phase = 0
  []
  [fracture_vel_y]
    type = PorousFlowDarcyVelocityComponentLowerDimensional
    variable = fracture_vel_y
    component = y
    fluid_phase = 0
  []
  [fracture_vel_z]
    type = PorousFlowDarcyVelocityComponentLowerDimensional
    variable = fracture_vel_z
    component = z
    fluid_phase = 0
 []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 1E16
    viscosity = 10
    density0 = 2
    thermal_expansion = 0
  []
[]

[Postprocessors]
  [bulk_vel_x]
    type = ElementAverageValue
    block = 1
    variable = bulk_vel_x
  []
  [bulk_vel_y]
    type = ElementAverageValue
    block = 1
    variable = bulk_vel_y
  []
  [bulk_vel_z]
    type = ElementAverageValue
    block = 1
    variable = bulk_vel_z
  []
  [fracture_vel_x]
    type = ElementAverageValue
    block = 3
    variable = fracture_vel_x
  []
  [fracture_vel_y]
    type = ElementAverageValue
    block = 3
    variable = fracture_vel_y
  []
  [fracture_vel_z]
    type = ElementAverageValue
    block = 3
    variable = fracture_vel_z
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
  []
  [ppss]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '5 0 0 0 5 0 0 0 5'
    block = '1 2'
  []
  [permeability_fracture]
    type = PorousFlowPermeabilityConst
    permeability = '10 0 0 0 10 0 0 0 10'
    block = 3
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
[]

[Executioner]
  type = Transient
  dt = 1
  end_time = 1
[]

[Outputs]
  csv = true
[]

(modules/level_set/examples/vortex/vortex_reinit.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmax = 1
  ymax = 1
  nx = 16
  ny = 16
  uniform_refine = 2
  elem_type = QUAD9
  second_order = true
[]

[AuxVariables]
  [./velocity]
    family = LAGRANGE_VEC
  [../]
[]

[AuxKernels]
  [./vec]
    type = VectorFunctionAux
    variable = velocity
    function = velocity_func
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
[]

[Variables]
  [phi]
    family = LAGRANGE
  []
[]

[Functions]
  [phi_exact]
    type = LevelSetOlssonBubble
    epsilon = 0.03
    center = '0.5 0.75 0'
    radius = 0.15
  []
  [./velocity_func]
    type = LevelSetOlssonVortex
    reverse_time = 2
  [../]
[]

[ICs]
  [phi_ic]
    type = FunctionIC
    function = phi_exact
    variable = phi
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = phi
  []
  [advection]
    type = LevelSetAdvection
    velocity = velocity
    variable = phi
  []
  [advection_supg]
    type = LevelSetAdvectionSUPG
    velocity = velocity
    variable = phi
  []
  [time_supg]
    type = LevelSetTimeDerivativeSUPG
    velocity = velocity
    variable = phi
  []
[]

[Postprocessors]
  [area]
    type = LevelSetVolume
    threshold = 0.5
    variable = phi
    location = outside
    execute_on = 'initial timestep_end'
  []
  [cfl]
    type = LevelSetCFLCondition
    velocity = velocity
    execute_on = 'initial timestep_end'
  []
[]

[Problem]
  type = LevelSetProblem
[]

[Preconditioning/smp]
    type = SMP
    full = true
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  start_time = 0
  end_time = 2
  scheme = crank-nicolson
  [TimeStepper]
    type = PostprocessorDT
    postprocessor = cfl
    scale = 0.8
  []
[]

[MultiApps]
  [reinit]
    type = LevelSetReinitializationMultiApp
    input_files = 'vortex_reinit_sub.i'
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [to_sub]
    type = MultiAppCopyTransfer
    source_variable = phi
    variable = phi
    to_multi_app = reinit
    execute_on = 'timestep_end'
  []

  [to_sub_init]
    type = MultiAppCopyTransfer
    source_variable = phi
    variable = phi_0
    to_multi_app = reinit
    execute_on = 'timestep_end'
  []

  [from_sub]
    type = MultiAppCopyTransfer
    source_variable = phi
    variable = phi
    from_multi_app = reinit
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  csv = true
  exodus = true
[]

(test/tests/nodalkernels/constraint_enforcement/vi-bounding.i)

l=10
nx=100
num_steps=10

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = ${l}
  nx = ${nx}
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [bounds][]
[]

[Bounds]
  [./u_upper_bounds]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = upper
    bound_value = ${l}
  [../]
  [./u_lower_bounds]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = lower
    bound_value = 0
  [../]
[]

[ICs]
  [u]
    type = FunctionIC
    variable = u
    function = 'x'
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [ffn]
    type = BodyForce
    variable = u
    function = 'if(x<5,-1,1)'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = 0
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = ${l}
    variable = u
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  num_steps = ${num_steps}
  solve_type = NEWTON
  dtmin = 1
  petsc_options_iname = '-snes_max_linear_solve_fail -ksp_max_it -pc_type -sub_pc_factor_levels -snes_linesearch_type -snes_type'
  petsc_options_value = '0                           30          asm      16                    basic                 vinewtonrsls'
[]

[Outputs]
  exodus = true
  [csv]
    type = CSV
    execute_on = 'nonlinear timestep_end'
  []
  [dof]
    type = DOFMap
    execute_on = 'initial'
  []
[]

[Debug]
  show_var_residual_norms = true
[]

[Postprocessors]
  [upper_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = ${fparse 10+1e-8}
    comparator = 'greater'
  []
  [lower_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = -1e-8
    comparator = 'less'
  []
  [nls]
    type = NumNonlinearIterations
  []
  [cum_nls]
    type = CumulativeValuePostprocessor
    postprocessor = nls
  []
[]

(modules/phase_field/examples/anisotropic_interfaces/snow.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 14
  ny = 14
  xmax = 9
  ymax = 9
  uniform_refine = 3
[]

[Variables]
  [./w]
  [../]
  [./T]
  [../]
[]

[ICs]
  [./wIC]
    type = SmoothCircleIC
    variable = w
    int_width = 0.1
    x1 = 4.5
    y1 = 4.5
    radius = 0.07
    outvalue = 0
    invalue = 1
  [../]
[]

[Kernels]
  [./w_dot]
    type = TimeDerivative
    variable = w
  [../]
  [./anisoACinterface1]
    type = ACInterfaceKobayashi1
    variable = w
    mob_name = M
  [../]
  [./anisoACinterface2]
    type = ACInterfaceKobayashi2
    variable = w
    mob_name = M
  [../]
  [./AllenCahn]
    type = AllenCahn
    variable = w
    mob_name = M
    f_name = fbulk
    coupled_variables = T
  [../]
  [./T_dot]
    type = TimeDerivative
    variable = T
  [../]
  [./CoefDiffusion]
    type = Diffusion
    variable = T
  [../]
  [./w_dot_T]
    type = CoefCoupledTimeDerivative
    variable = T
    v = w
    coef = -1.8
  [../]
[]

[Materials]
  [./free_energy]
    type = DerivativeParsedMaterial
    property_name = fbulk
    coupled_variables = 'w T'
    constant_names = pi
    constant_expressions = 4*atan(1)
    expression = 'm:=0.9 * atan(10 * (1 - T)) / pi; 1/4*w^4 - (1/2 - m/3) * w^3 + (1/4 - m/2) * w^2'
    derivative_order = 2
    outputs = exodus
  [../]
  [./material]
    type = InterfaceOrientationMaterial
    op = w
  [../]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'M'
    prop_values = '3333.333'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre    boomeramg      31'

  nl_abs_tol = 1e-10
  nl_rel_tol = 1e-08
  l_max_its = 30

  end_time = 1

  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 6
    iteration_window = 2
    dt = 0.0005
    growth_factor = 1.1
    cutback_factor = 0.75
  [../]
  [./Adaptivity]
    initial_adaptivity = 3 # Number of times mesh is adapted to initial condition
    refine_fraction = 0.7 # Fraction of high error that will be refined
    coarsen_fraction = 0.1 # Fraction of low error that will coarsened
    max_h_level = 5 # Max number of refinements used, starting from initial mesh (before uniform refinement)
    weight_names = 'w T'
    weight_values = '1 0.5'
  [../]
[]

[Outputs]
  time_step_interval = 5
  exodus = true
[]

(modules/phase_field/test/tests/MultiPhase/acmultiinterface_aux.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 20
  ny = 10
  nz = 0
  xmin = -10
  xmax = 10
  ymin = -5
  ymax = 5
  elem_type = QUAD4
[]

[AuxVariables]
  [./eta1]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = -3.5
      y1 =  0.0
      radius = 4.0
      invalue = 0.9
      outvalue = 0.1
      int_width = 2.0
    [../]
  [../]
[]

[Variables]
  [./eta2]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SmoothCircleIC
      x1 =  3.5
      y1 =  0.0
      radius = 4.0
      invalue = 0.9
      outvalue = 0.1
      int_width = 2.0
    [../]
  [../]
  [./eta3]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = SpecifiedSmoothCircleIC
      x_positions = '-4.0 4.0'
      y_positions = ' 0.0 0.0'
      z_positions = ' 0.0 0.0'
      radii = '4.0 4.0'
      invalue = 0.1
      outvalue = 0.9
      int_width = 2.0
    [../]
  [../]

  [./lambda]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1.0
  [../]
[]

[Kernels]
  [./deta2dt]
    type = TimeDerivative
    variable = eta2
  [../]
  [./ACBulk2]
    type = AllenCahn
    variable = eta2
    coupled_variables = 'eta1 eta3'
    mob_name = L2
    f_name = F
  [../]
  [./ACInterface2]
    type = ACMultiInterface
    variable = eta2
    etas = 'eta1 eta2 eta3'
    mob_name = L2
    kappa_names = 'kappa21 kappa22 kappa23'
  [../]
  [./lagrange2]
    type = SwitchingFunctionConstraintEta
    variable = eta2
    h_name   = h2
    lambda = lambda
  [../]

  [./deta3dt]
    type = TimeDerivative
    variable = eta3
  [../]
  [./ACBulk3]
    type = AllenCahn
    variable = eta3
    coupled_variables = 'eta1 eta2'
    mob_name = L3
    f_name = F
  [../]
  [./ACInterface3]
    type = ACMultiInterface
    variable = eta3
    etas = 'eta1 eta2 eta3'
    mob_name = L3
    kappa_names = 'kappa31 kappa32 kappa33'
  [../]
  [./lagrange3]
    type = SwitchingFunctionConstraintEta
    variable = eta3
    h_name   = h3
    lambda = lambda
  [../]

  [./lagrange]
    type = SwitchingFunctionConstraintLagrange
    variable = lambda
    etas    = 'eta1 eta2 eta3'
    h_names = 'h1   h2   h3'
    epsilon = 0
  [../]
[]

[BCs]
  [./Periodic]
    [./All]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'Fx  L1 L2 L3  kappa11 kappa12 kappa13 kappa21 kappa22 kappa23 kappa31 kappa32 kappa33'
    prop_values = '0   1  1  1   1       1       1       1       1       1       1       1       1      '
  [../]

  [./switching1]
    type = SwitchingFunctionMaterial
    function_name = h1
    eta = eta1
    h_order = SIMPLE
  [../]
  [./switching2]
    type = SwitchingFunctionMaterial
    function_name = h2
    eta = eta2
    h_order = SIMPLE
  [../]
  [./switching3]
    type = SwitchingFunctionMaterial
    function_name = h3
    eta = eta3
    h_order = SIMPLE
  [../]

  [./barrier]
    type = MultiBarrierFunctionMaterial
    etas = 'eta1 eta2 eta3'
  [../]

  [./free_energy]
    type = DerivativeMultiPhaseMaterial
    property_name = F
    # we use a constant free energy (GeneriConstantmaterial property Fx)
    fi_names = 'Fx  Fx  Fx'
    hi_names = 'h1  h2  h3'
    etas     = 'eta1 eta2 eta3'
    # the free energy is given by the MultiBarrierFunctionMaterial only
    W = 1
    derivative_order = 2
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'PJFNK'
  #petsc_options = '-snes_ksp -snes_ksp_ew'
  #petsc_options = '-ksp_monitor_snes_lg-snes_ksp_ew'
  #petsc_options_iname = '-ksp_gmres_restart'
  #petsc_options_value = '1000              '

  l_max_its = 15
  l_tol = 1.0e-6

  nl_max_its = 50
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1.0e-10

  start_time = 0.0
  num_steps = 2
  dt = 0.2
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/auxkernels/mesh_integer/mesh_integer.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    xmin = 0
    xmax = 1
    ymin = 0
    ymax = 1
    nx = 5
    ny = 5
    extra_element_integers = 'material_id'
  []
  [set_material_id0]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    bottom_left = '0 0 0'
    top_right = '0.8 0.6 0'
    block_id = 0
    location = INSIDE
    integer_name = material_id
  []
  [set_material_id1]
    type = SubdomainBoundingBoxGenerator
    input = set_material_id0
    bottom_left = '0 0 0'
    top_right = '0.8 0.6 0'
    block_id = 1
    location = OUTSIDE
    integer_name = material_id
  []
[]

[Variables]
  [u][]
[]

[Kernels]
  [diff]
    type = MatDiffusion
    variable = u
    diffusivity = dc
  []
  [timederivative]
    type = TimeDerivative
    variable = u
  []
  [sourceterm]
    type = BodyForce
    variable = u
    function = 1
  []
[]

[AuxVariables]
  [id]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [id]
    type = ElementIntegerAux
    variable = id
    integer_names = material_id
  []
[]

[BCs]
  [vacuum]
    type = VacuumBC
    variable = u
    boundary = 'right left top bottom'
 []
[]

[Materials]
  [dc]
    type = ConstantIDMaterial
    prop_name = dc
    prop_values = '1 2'
    id_name = material_id
  []
[]

[Postprocessors]
  [unorm]
    type = ElementL2Norm
    variable = u
  []
[]

[Executioner]
  type = Transient

  end_time = 0.1
  dt = 0.01
  nl_abs_tol = 1.e-15
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/outputs/iterative/output_start_step.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  [./out]
    type = Exodus
    start_step = 12
  [../]
[]

(modules/stochastic_tools/examples/surrogates/combined/trans_diff_2d/trans_diff_sub.i)

[Functions]
  [src_func]
    type = ParsedFunction
    expression = "1000*sin(f*t)"
    symbol_names = 'f'
    symbol_values = '20'
  []
[]

[Mesh]
  [msh]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 100
    xmin = -0.5
    xmax = 0.5
    ny = 100
    ymin = -0.5
    ymax = 0.5
  []
  [source_domain]
    type = ParsedSubdomainMeshGenerator
    input = msh
    combinatorial_geometry = '(x<0.1 & x>-0.1) & (y<0.1 & y>-0.1)'
    block_id=1
  []
[]

[Variables]
  [T]
    initial_condition = 300
  []
[]

[Kernels]
  [diffusion]
    type = MatDiffusion
    variable = T
    diffusivity = diff_coeff
  []
  [source]
    type = BodyForce
    variable = T
    function = src_func
    block = 1
  []
  [time_deriv]
    type = TimeDerivative
    variable = T
  []
[]

[Materials]
  [diff_coeff]
    type = ParsedMaterial
    property_name = diff_coeff
    coupled_variables = 'T'
    constant_names = 'C'
    constant_expressions = 0.02
    expression = 'C * pow(300/T, 2)'
  []
[]

[BCs]
  [neumann_all]
    type = NeumannBC
    variable = T
    boundary = 'left right top bottom'
    value = 0
  []
[]

[Executioner]
  type = Transient
  num_steps = 100
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_rel_tol = 1e-6
  l_abs_tol = 1e-6
  timestep_tolerance = 1e-6
[]

[Postprocessors]
  [max]
    type = NodalExtremeValue
    variable = T
  []
  [min]
    type = NodalExtremeValue
    variable = T
    value_type = min
  []
  [time_max]
    type = TimeExtremeValue
    postprocessor = max
  []
  [time_min]
    type = TimeExtremeValue
    postprocessor = min
    value_type = min
  []
[]

(test/tests/materials/stateful_prop/stateful_prop_on_bnd_only.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 10
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./heat]
    type = MatDiffusionTest
    variable = u
    prop_name = thermal_conductivity
  [../]

  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0.0
  [../]

  [./right]
    type = MTBC
    variable = u
    boundary = right
    grad = 1.0
    prop_name = thermal_conductivity
  [../]
[]

[Materials]
  [./volatile]
    type = GenericConstantMaterial
    prop_names = 'thermal_conductivity'
    prop_values = 10
    block = 0
  [../]

  [./stateful_on_boundary]
    type = StatefulSpatialTest
    boundary = right
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = .1
[]

[Outputs]
  file_base = out_bnd_only
  exodus = true
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test12.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 8
    ny = 8
    xmin = 0
    xmax = 4
    ymin = 0
    ymax = 4
  []

  [mark]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    block_id = 1
    bottom_left = '0.9 0.9 0'
    top_right = '3.1 3.1 0'
  []
  [delete]
    type = BlockDeletionGenerator
    block = 1
    input = mark
    new_boundary = cut_surface
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [outer]
    type = DirichletBC
    variable = u
    boundary = 'top bottom left right'
    value = 1
  []
  [inner]
    type = DirichletBC
    variable = u
    boundary = cut_surface
    value = 0
  []
[]

[Executioner]
  type = Transient
  num_steps = 1
[]

[Outputs]
  exodus = true
[]

(test/tests/scalar_kernels/ad_scalar_kernel/ad_scalar_kernel.i)

# This input file is used to test the Jacobian of an arbitrary ADScalarKernel.
# A test ADScalarKernel is used that uses values from other scalar variables,
# as well as a quantity computed in an elemental user object using a field
# variable.

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Kernels]
  [time_w]
    type = TimeDerivative
    variable = w
  []
  [diff_w]
    type = Diffusion
    variable = w
  []
[]

[ScalarKernels]
  [time_u]
    type = ADScalarTimeDerivative
    variable = u
  []
  [test_u]
    type = TestADScalarKernel
    variable = u
    v = v
    test_uo = test_uo
  []

  [time_v]
    type = ADScalarTimeDerivative
    variable = v
  []
[]

[UserObjects]
  [test_uo]
    type = TestADScalarKernelUserObject
    variable = w
    execute_on = 'LINEAR NONLINEAR'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    value = 0
    variable = w
    boundary = 'left'
  []
  [right]
    type = DirichletBC
    value = 1
    variable = w
    boundary = 'right'
  []
[]

[Variables]
  [u]
    family = SCALAR
    order = FIRST
    initial_condition = 1.0
  []
  [v]
    family = SCALAR
    order = FIRST
    initial_condition = 3.0
  []
  [w]
    family = LAGRANGE
    order = FIRST
    initial_condition = 3.0
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 1
  solve_type = NEWTON
[]

(modules/phase_field/test/tests/anisotropic_mobility/diffusion.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  xmax = 15.0
  ymax = 15.0
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = CrossIC
      x1 = 0.0
      x2 = 30.0
      y1 = 0.0
      y2 = 30.0
    [../]
  [../]
[]

[Kernels]
  [./cres]
    type = MatAnisoDiffusion
    diffusivity = D
    variable = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./D]
    type = ConstantAnisotropicMobility
    tensor = '0.1 0 0
              0   1 0
              0   0 0'
    M_name = D
  [../]
[]

[Preconditioning]
  [./SMP]
   type = SMP
   full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'BDF2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31      lu      1'

  l_max_its = 30
  l_tol = 1.0e-4
  nl_max_its = 50
  nl_rel_tol = 1.0e-10

  dt = 10.0
  num_steps = 2
[]

[Outputs]
  exodus = true
  print_linear_residuals = true
  perf_graph = true
[]

(modules/stochastic_tools/test/tests/multiapps/sampler_full_solve_multiapp/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
    #    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/csv/csv_no_time.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux0]
    order = SECOND
    family = SCALAR
  [../]
  [./aux1]
    family = SCALAR
    initial_condition = 5
  [../]
  [./aux2]
    family = SCALAR
    initial_condition = 10
  [../]
  [./aux_sum]
    family = SCALAR
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxScalarKernels]
  [./sum_nodal_aux]
    type = SumNodalValuesAux
    variable = aux_sum
    sum_var = u
    nodes = '1 2 3 4 5'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./mid_point]
    type = PointValue
    variable = u
    point = '0.5 0.5 0'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  verbose = true
[]

[Outputs]
  [./out]
    type = CSV
    time_column = false
  [../]
[]

(test/tests/time_integrators/tvdrk2/1d-linear.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = -1
  xmax = 1
  nx = 20
  elem_type = EDGE2
[]

[Functions]
  [./ic]
    type = ParsedFunction
    expression = 0
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = x
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*x
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./ie]
    type = TimeDerivative
    variable = u
    implicit = true
  [../]

  [./diff]
    type = Diffusion
    variable = u
    implicit = false
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
    implicit = false
  [../]
[]

[ICs]
  [./u_ic]
    type = FunctionIC
    variable = u
    function = ic
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient

  [./TimeIntegrator]
    type = ExplicitTVDRK2
  [../]
  solve_type = 'LINEAR'

  start_time = 0.0
  num_steps = 10
  dt = 0.001
  l_tol = 1e-15
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(test/tests/controls/time_periods/bcs/bcs_integrated.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = NeumannBC
    variable = u
    boundary = right
    value = 1
  [../]
  [./right2]
    type = FunctionNeumannBC
    variable = u
    boundary = right
    function = (y*(t-1))+1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Controls]
  [./period0]
    type = TimePeriod
    disable_objects = 'BCs::right2'
    start_time = '0'
    end_time = '0.95'
    execute_on = 'initial timestep_begin'
  [../]

  [./period2]
    type = TimePeriod
    disable_objects = 'BCs::right'
    start_time = '1'
    execute_on = 'initial timestep_begin'
  [../]
[]

(test/tests/kernels/2d_diffusion/matdiffusion.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  xmax = 1.0
  ymax = 1.0
  elem_type = QUAD4
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./cres]
    type = MatDiffusion
    variable = u
    diffusivity = Du
  [../]
  [./ctime]
    type = TimeDerivative
    variable = u
  [../]
[]

[Materials]
  [./Dc]
    type = DerivativeParsedMaterial
    property_name = Du
    expression = '0.01+u^2'
    coupled_variables = 'u'
    derivative_order = 1
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]

  [./right]
    type = NeumannBC
    variable = u
    boundary = 2
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'NEWTON'
  scheme = 'BDF2'
  dt = 1
  num_steps = 2
[]

[Outputs]
  exodus = true
[]

(test/tests/userobjects/shape_element_user_object/shape_element_user_object.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = FunctionIC
      function = (x-0.5)^2
    [../]
  [../]
  [./v]
    order = THIRD
    family = HERMITE
    [./InitialCondition]
      type = FunctionIC
      function = (y-0.5)^2
    [../]
  [../]
[]

[Kernels]
  [./diff_u]
    type = Diffusion
    variable = u
  [../]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./time_u]
    type = TimeDerivative
    variable = u
  [../]
  [./time_v]
    type = TimeDerivative
    variable = v
  [../]
[]

[UserObjects]
  [./test]
    type = TestShapeElementUserObject
    u = u
    # first order lagrange variables have 4 DOFs per element
    u_dofs = 4
    v = v
    # third order hermite variables have 16 DOFs per element
    v_dofs = 16
    # as this userobject computes quantities for both the residual AND the jacobian
    # it needs to have these execute_on flags set.
    execute_on = 'linear nonlinear'
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 2
[]

(modules/phase_field/test/tests/PolynomialFreeEnergy/direct_order4_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
  xmax = 125
[]

[GlobalParams]
  polynomial_order = 4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c_IC]
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 60.0
    invalue = 1.0
    outvalue = 0.1
    int_width = 60.0
    variable = c
  [../]
[]

[Kernels]
  [./local_energy]
    type = CahnHilliard
    variable = c
    f_name = F
  [../]
  [./gradient_energy]
    type = CHInterface
    variable = c
    mob_name = M
    kappa_name = kappa
  [../]
  [./cdot]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./Copper]
    type = PFParamsPolyFreeEnergy
    c = c
    T = 1000 # K
    int_width = 30.0
    length_scale = 1.0e-9
    time_scale = 1.0e-9
    D0 = 3.1e-5 # m^2/s, from Brown1980
    Em = 0.71 # in eV, from Balluffi1978 Table 2
    Ef = 1.28 # in eV, from Balluffi1978 Table 2
    surface_energy = 0.7 # Total guess
  [../]
  [./free_energy]
    type = PolynomialFreeEnergy
    c = c
    derivative_order = 2
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = -pc_type
  petsc_options_value = lu

  l_max_its = 30
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8

  start_time = 0.0
  num_steps = 100
  dt = 4
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/cliargs_from_file/cliargs_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1 # This will be constrained by the multiapp

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    positions_file = positions.txt
    cli_args_files = cliargs.txt
    type = TransientMultiApp
    input_files = 'cliargs_sub.i'
    app_type = MooseTestApp
  [../]
[]

(test/tests/mesh/adapt/adapt_test_cycles.i)

[Mesh]
  type = GeneratedMesh
  nx = 2
  ny = 2
  dim = 2
  uniform_refine = 3
[]

[Variables]
  active = 'u v'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'udiff uconv uie vdiff'

  [./udiff]
    type = Diffusion
    variable = u
  [../]

  [./uconv]
    type = Convection
    variable = u
    velocity = '20 1 0'
  [../]

  [./uie]
    type = TimeDerivative
    variable = u
  [../]

  [./vdiff]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'uleft uright vleft vright'

  [./uleft]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./uright]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]

  [./vleft]
    type = DirichletBC
    variable = v
    boundary = 3
    value = 1
  [../]

  [./vright]
    type = DirichletBC
    variable = v
    boundary = 1
    value = 0
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 2
  dt = .1

  [./Adaptivity]
    refine_fraction = 0.3
    max_h_level = 7
    cycles_per_step = 2
  [../]
[]

[Outputs]
  file_base = out_cycles
  exodus = true
[]

(test/tests/userobjects/force_aux_ordering/force_preaux.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  nx = 2
  ymin = 0
  ymax = 1
  ny = 2
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]
[]


[Postprocessors]
  [./total_u]
    type = ElementIntegralVariablePostprocessor
    variable = u
  [../]

  # scale1 and scale2 depend on the ElementUO total_u. total_u is executed on
  # timestep_end in POST_AUX _before_ the GeneralPostprocessors. scale1 is executed
  # at its default location, timestep_end/POST_AUX/after total_u and hence gets
  # the most up to date information. scale2 is pushed into PRE_AUX and hence picks
  # up the value of total_u from the last timestep.
  [./scale1]
    type = ScalePostprocessor
    value = total_u
    scaling_factor = 1
  [../]

  [./scale2]
    type = ScalePostprocessor
    value = total_u
    scaling_factor = 1
    force_preaux = true
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  dt = 1.0
  end_time = 2.0
[]

[Outputs]
  csv = true
[]

(modules/thermal_hydraulics/test/tests/misc/surrogate_power_profile/power_profile.i)

# This input file generates an Exodus output file with a surrogate power profile
# that is used in the RELAP-7 run.  There is dummy diffusion solve to step through
# the simulation. The power profile (given as power density) is generated via
# aux variable

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0.020652
  xmax = 0.024748
  ymin = 0
  ymax = 3.865
  nx = 5
  ny = 20
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 0
  []
[]

[Functions]
  [power_density_fn]
    type = ParsedFunction
    expression = 'sin(y/3.865*pi)*sin((x-0.020652)/4.096e-3*pi/2.)*10e7*t'
  []
[]

[AuxVariables]
  [power_density]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [pd_aux]
    type = FunctionAux
    variable = power_density
    function = power_density_fn
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 0.1
  dt = 0.01
  abort_on_solve_fail = true
[]

[Outputs]
  [expdus]
    type = Exodus
    file_base = power_profile
  []
[]

(test/tests/executioners/executioner/sln-time-adapt.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    # dudt = 3*t^2*(x^2 + y^2)
    expression = 3*t*t*((x*x)+(y*y))-(4*t*t*t)
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = t*t*t*((x*x)+(y*y))
  [../]
[]

[Kernels]
  active = 'diff ie ffn'

  [./ie]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  active = 'all'

  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  [../]

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Postprocessors]
  [./l2_err]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./dt]
    type = TimestepSize
  [../]
[]

[Executioner]
  type = Transient
  [./TimeStepper]
    type = SolutionTimeAdaptiveDT
    dt = 0.1
  [../]
  scheme = 'implicit-euler'

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_sta
  exodus = true
[]

(modules/external_petsc_solver/test/tests/partition/moose_as_parent.i)

[Mesh]
  [gmg]
    type = DistributedRectilinearMeshGenerator
    dim = 2
    nx = 20
    ny = 21
    partition = square
  []
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./v]
  [../]
  [pid]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [pid_aux]
    type = ProcessorIDAux
    variable = pid
    execute_on = 'INITIAL'
  []
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
  [./cf]
    type = CoupledForce
    coef = 10000
    variable = u
    v=v
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.2

  solve_type = 'PJFNK'

  fixed_point_max_its = 10
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
  nl_rel_tol = 1e-6
  nl_abs_tol = 1e-12

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[Postprocessors]
  [./picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  [../]
[]

[MultiApps]
  [./sub_app]
    type = TransientMultiApp
    input_files = 'petsc_transient_as_sub.i'
    app_type = ExternalPetscSolverApp
    library_path = '../../../../external_petsc_solver/lib'
  [../]
[]

[Transfers]
  [./fromsub]
    type = MultiAppShapeEvaluationTransfer
    from_multi_app = sub_app
    source_variable = u
    variable = v
  [../]
[]

(test/tests/transfers/transfer_with_reset/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./t]
  [../]
  [./u_from_master]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./t]
    type = FunctionAux
    variable = t
    function = t
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/initial_conditions/polycrystalcircles_fromvector.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 100
  ny = 56
  nz = 0
  xmin = 0
  xmax = 200
  ymin = 0
  ymax = 112
  zmin = 0
  zmax = 0
[]

[GlobalParams]
  op_num = 6
  var_name_base = gr
[]

[Variables]
  [./PolycrystalVariables]
  [../]
[]

[AuxVariables]
  [./bnds]
  [../]
[]

[UserObjects]
  [./circle_IC]
    type = PolycrystalCircles
    radii =       '22  22  30  22  22  22  22  22 '
    x_positions = '34  78  122 166 34  78  122 166'
    y_positions = '34  34  34  34  78  78  78  78 '
    z_positions = '0   0   0   0   0   0   0   0  '
    execute_on = 'initial'
    threshold = 0.2
    connecting_threshold = 0.08
    int_width = 8
  [../]
[]

[ICs]
  [./PolycrystalICs]
    [./PolycrystalColoringIC]
      polycrystal_ic_uo = circle_IC
    [../]
  [../]
[]

[Kernels]
  [./dt_gr0]
    type = TimeDerivative
    variable = gr0
  [../]
  [./dt_gr1]
    type = TimeDerivative
    variable = gr1
  [../]
  [./dt_gr2]
    type = TimeDerivative
    variable = gr2
  [../]
  [./dt_gr3]
    type = TimeDerivative
    variable = gr3
  [../]
  [./dt_gr4]
    type = TimeDerivative
    variable = gr4
  [../]
  [./dt_gr5]
    type = TimeDerivative
    variable = gr5
  [../]
[]

[AuxKernels]
  [./bnds_aux]
    type = BndsCalcAux
    variable = bnds
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  num_steps = 0
[]

[Outputs]
  exodus = true
  csv = false
[]

(modules/level_set/test/tests/verification/1d_level_set_mms/level_set_mms.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 32
  nx = 64
  uniform_refine = 0
[]

[Variables]
  [./phi]
  [../]
[]

[AuxVariables]
  [./velocity]
    family = LAGRANGE_VEC
  [../]
[]

[ICs]
  [./phi_ic]
    function = phi_exact
    variable = phi
    type = FunctionIC
  [../]
  [./vel_ic]
    type = VectorFunctionIC
    variable = velocity
    function = velocity_func
  []
[]

[Functions]
  [./phi_exact]
    type = ParsedFunction
    expression = 'a*exp(1/(10*t))*sin(2*pi*x/b) + 1'
    symbol_names = 'a b'
    symbol_values = '1 8'
  [../]
  [./phi_mms]
    type = ParsedFunction
    expression = '-a*exp(1/(10*t))*sin(2*pi*x/b)/(10*t^2) + 2*pi*a*exp(1/(10*t))*cos(2*pi*x/b)/b'
    symbol_names = 'a b'
    symbol_values = '1 8'
  [../]
  [./velocity_func]
    type = ParsedVectorFunction
    expression_x = '1'
    expression_y = '1'
  [../]
[]

[Kernels]
  [./phi_advection]
    type = LevelSetAdvection
    variable = phi
    velocity = velocity
  [../]
  [./phi_time]
    type = TimeDerivative
    variable = phi
  [../]
  [./phi_forcing]
    type = BodyForce
    variable = phi
    function = phi_mms
  [../]
[]

[Postprocessors]
  [./error]
    type = ElementL2Error
    function = phi_exact
    variable = phi
  [../]
  [./h]
    type = AverageElementSize
  [../]
  [./point]
    type = PointValue
    point = '0.1 0 0'
    variable = phi
  [../]
[]

[Executioner]
  type = Transient
  start_time = 1
  dt = 0.01
  end_time = 1.25
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_sub_type'
  petsc_options_value = 'asm      ilu'
  scheme = bdf2
  nl_rel_tol = 1e-12
[]

[Outputs]
  time_step_interval = 10
  execute_on = 'timestep_end'
  csv = true
[]

(modules/phase_field/test/tests/initial_conditions/SmoothCircleIC_3D.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 15
  ny = 15
  nz = 15
  xmax = 50
  ymax = 50
  zmax = 50
  elem_type = HEX8
[]

[Variables]
  [./c]
  [../]
[]

[ICs]
  [./c]
    type = SmoothCircleIC
    variable = c
    x1 = 25.0
    y1 = 25.0
    radius = 12
    invalue = 1.0
    outvalue = 0
    int_width = 12
    3D_spheres = false
    z1 = 25
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./Diffusion]
    type = MatDiffusion
    variable = c
  [../]
[]

[BCs]
  [./Periodic]
    [./All]
      auto_direction = 'x y z'
    [../]
  [../]
[]

[Materials]
  [./Diffusivity]
    type = GenericConstantMaterial
    prop_names = D
    prop_values = 1.0
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 20
  l_tol = 1.0e-5
  nl_max_its = 40
  nl_rel_tol = 5.0e-14

  start_time = 0.0
  num_steps = 1
  dt = 2.0
[]

[Outputs]
  exodus = true
[]

(examples/ex04_bcs/periodic_bc.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 50
  nz = 0

  xmax = 40
  ymax = 40
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./forcing]
    type = ExampleGaussContForcing
    variable = u
    x_center = 2
    y_center = 4
  [../]

  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    #Note: Enable either "auto" or both "manual" conditions for this example
    active = 'manual_x manual_y'

    # Can use auto_direction with Generated Meshes
    [./auto]
      variable = u
      auto_direction = 'x y'
    [../]

     # Use Translation vectors for everything else
     [./manual_x]
       variable = u
       primary = 'left'
       secondary = 'right'
       translation = '40 0 0'
     [../]

     [./manual_y]
       variable = u
       primary = 'bottom'
       secondary = 'top'
       translation = '0 40 0'
     [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = 1
  num_steps = 20
  nl_rel_tol = 1e-12
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/materials/material/exception_material.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./mat]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./time_derivative]
    type = TimeDerivative
    variable = u
  [../]
  [./diff]
    type = MatDiffusionTest
    variable = u
    prop_name = matp
  [../]
  [./f]
    type = BodyForce
    variable = u
    function = '20'
  [../]
[]

[AuxKernels]
  [./mat]
    # Sequence of events:
    # 1.) MaterialRealAux is re-evaluated every linear iteration
    # 2.) MaterialRealAux calls ExceptionMaterial::computeQpProperties()
    # 3.) ExceptionMaterial throws a MooseException.
    # 4.) The MooseException is caught and handled by MOOSE.
    # 5.) The next solve is automatically failed.
    # 6.) Time timestep is cut and we try again.
    #
    # The idea is to test that MOOSE can recover when exceptions are
    # thrown during AuxKernel evaluation, and not just nonlinear
    # residual/jacobian evaluation.
    type = MaterialRealAux
    variable = mat
    property = matp
  [../]
[]

[BCs]
  [./all]
    type = DirichletBC
    variable = u
    boundary = 'left top bottom right'
    value = 0
  [../]
[]

[Materials]
  [./mat]
    type = ExceptionMaterial
    block = 0
    rank = 0
    coupled_var = u
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.1
  end_time = .5
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/examples/kim-kim-suzuki/kks_example_ternary.i)

#
# KKS ternary (3 chemical component) system example in the split form
# We track c1 and c2 only, since c1 + c2 + c3 = 1
#

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 150
  ny = 15
  nz = 0
  xmin = -25
  xmax = 25
  ymin = -2.5
  ymax = 2.5
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[AuxVariables]
  [./Fglobal]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Variables]
  # order parameter
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]

  # solute 1 concentration
  [./c1]
    order = FIRST
    family = LAGRANGE
  [../]

  # solute 2 concentration
  [./c2]
    order = FIRST
    family = LAGRANGE
  [../]


  # chemical potential solute 1
  [./w1]
    order = FIRST
    family = LAGRANGE
  [../]

  # chemical potential solute 2
  [./w2]
    order = FIRST
    family = LAGRANGE
  [../]


  # Liquid phase solute 1 concentration
  [./c1l]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.1
  [../]

  # Liquid phase solute 2 concentration
  [./c2l]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.05
  [../]

  # Solid phase solute 1 concentration
  [./c1s]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.8
  [../]

  # Solid phase solute 2 concentration
  [./c2s]
    order = FIRST
    family = LAGRANGE
    initial_condition = 0.1
  [../]

[]

[Functions]
  [./ic_func_eta]
    type = ParsedFunction
    expression = '0.5*(1.0-tanh((x)/sqrt(2.0)))'
  [../]
  [./ic_func_c1]
    type = ParsedFunction
    expression = '0.8*(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10)+0.1*(1-(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10))'
  [../]
  [./ic_func_c2]
    type = ParsedFunction
    expression = '0.1*(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10)+0.05*(1-(0.5*(1.0-tanh(x/sqrt(2.0))))^3*(6*(0.5*(1.0-tanh(x/sqrt(2.0))))^2-15*(0.5*(1.0-tanh(x/sqrt(2.0))))+10))'
  [../]

[]


[ICs]
  [./eta]
    variable = eta
    type = FunctionIC
    function = ic_func_eta
  [../]
  [./c1]
    variable = c1
    type = FunctionIC
    function = ic_func_c1
  [../]
  [./c2]
    variable = c2
    type = FunctionIC
    function = ic_func_c2
  [../]

[]

[Materials]
  # Free energy of the liquid
  [./fl]
    type = DerivativeParsedMaterial
    property_name = fl
    coupled_variables = 'c1l c2l'
    expression = '(0.1-c1l)^2+(0.05-c2l)^2'
  [../]

  # Free energy of the solid
  [./fs]
    type = DerivativeParsedMaterial
    property_name = fs
    coupled_variables = 'c1s c2s'
    expression = '(0.8-c1s)^2+(0.1-c2s)^2'
  [../]

  # h(eta)
  [./h_eta]
    type = SwitchingFunctionMaterial
    h_order = HIGH
    eta = eta
  [../]

  # g(eta)
  [./g_eta]
    type = BarrierFunctionMaterial
    g_order = SIMPLE
    eta = eta
  [../]

  # constant properties
  [./constants]
    type = GenericConstantMaterial
    prop_names  = 'M   L   eps_sq'
    prop_values = '0.7 0.7 1.0  '
  [../]
[]

[Kernels]
  # enforce c1 = (1-h(eta))*c1l + h(eta)*c1s
  [./PhaseConc1]
    type = KKSPhaseConcentration
    ca       = c1l
    variable = c1s
    c        = c1
    eta      = eta
  [../]

  # enforce c2 = (1-h(eta))*c2l + h(eta)*c2s
  [./PhaseConc2]
    type = KKSPhaseConcentration
    ca       = c2l
    variable = c2s
    c        = c2
    eta      = eta
  [../]

  # enforce pointwise equality of chemical potentials
  [./ChemPotSolute1]
    type = KKSPhaseChemicalPotential
    variable = c1l
    cb       = c1s
    fa_name  = fl
    fb_name  = fs
    args_a   = 'c2l'
    args_b   = 'c2s'
  [../]
  [./ChemPotSolute2]
    type = KKSPhaseChemicalPotential
    variable = c2l
    cb       = c2s
    fa_name  = fl
    fb_name  = fs
    args_a   = 'c1l'
    args_b   = 'c1s'

  [../]

  #
  # Cahn-Hilliard Equations
  #
  [./CHBulk1]
    type = KKSSplitCHCRes
    variable = c1
    ca       = c1l
    fa_name  = fl
    w        = w1
    args_a   = 'c2l'
  [../]
  [./CHBulk2]
    type = KKSSplitCHCRes
    variable = c2
    ca       = c2l
    fa_name  = fl
    w        = w2
    args_a   = 'c1l'
  [../]

  [./dc1dt]
    type = CoupledTimeDerivative
    variable = w1
    v = c1
  [../]
  [./dc2dt]
    type = CoupledTimeDerivative
    variable = w2
    v = c2
  [../]

  [./w1kernel]
    type = SplitCHWRes
    mob_name = M
    variable = w1
  [../]
  [./w2kernel]
    type = SplitCHWRes
    mob_name = M
    variable = w2
  [../]


  #
  # Allen-Cahn Equation
  #
  [./ACBulkF]
    type = KKSACBulkF
    variable = eta
    fa_name  = fl
    fb_name  = fs
    w        = 1.0
    coupled_variables = 'c1l c1s c2l c2s'
  [../]
  [./ACBulkC1]
    type = KKSACBulkC
    variable = eta
    ca       = c1l
    cb       = c1s
    fa_name  = fl
    coupled_variables     = 'c2l'
  [../]
  [./ACBulkC2]
    type = KKSACBulkC
    variable = eta
    ca       = c2l
    cb       = c2s
    fa_name  = fl
    coupled_variables     = 'c1l'
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    kappa_name = eps_sq
  [../]
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
[]

[AuxKernels]
  [./GlobalFreeEnergy]
    variable = Fglobal
    type = KKSGlobalFreeEnergy
    fa_name = fl
    fb_name = fs
    w = 1.0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -sub_pc_type -sub_pc_factor_shift_type'
  petsc_options_value = 'asm      ilu          nonzero'

  l_max_its = 100
  nl_max_its = 100

  num_steps = 50
  dt = 0.1
[]

#
# Precondition using handcoded off-diagonal terms
#
[Preconditioning]
  [./full]
    type = SMP
    full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/level_set/test/tests/kernels/olsson_reinitialization/olsson_1d.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 8
  ny = 8
  uniform_refine = 2
[]

[Variables]
  [./phi]
  [../]
[]

[AuxVariables]
  [./phi_0]
    family = MONOMIAL
    order = FIRST
  [../]
  [./phi_exact]
  [../]
[]

[AuxKernels]
  [./phi_exact]
    type = FunctionAux
    function = phi_exact
    variable = phi_exact
  [../]
[]

[Functions]
  [./phi_initial]
    type = ParsedFunction
    expression = '1-x'
  [../]
  [./phi_exact]
    type = ParsedFunction
    symbol_names = epsilon
    symbol_values = 0.05
    expression = '1 / (1+exp((x-0.5)/epsilon))'
  [../]
[]

[ICs]
  [./phi_ic]
    type = FunctionIC
    function = phi_initial
    variable = phi
  [../]
  [./phi_0_ic]
    type = FunctionIC
    function = phi_initial
    variable = phi_0
  [../]
[]

[Kernels]
  [./time]
    type = TimeDerivative
    variable = phi
  [../]

  [./reinit]
    type = LevelSetOlssonReinitialization
    variable = phi
    phi_0 = phi_0
    epsilon = 0.05
  [../]
[]

[UserObjects]
  [./arnold]
    type = LevelSetOlssonTerminator
    tol = 0.1
  [../]
[]

[Postprocessors]
  [./error]
    type = ElementL2Error
    variable = phi
    function = phi_exact
    execute_on = 'initial timestep_end'
  [../]
  [./ndofs]
    type = NumDOFs
  [../]
[]

[VectorPostprocessors]
  [./line]
    type = LineValueSampler
    start_point = '0 0.5 0'
    end_point =  '1 0.5 0'
    variable = phi
    num_points = 100
    sort_by = x
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  l_max_its = 100
  nl_max_its = 100
  solve_type = PJFNK
  num_steps = 10
  start_time = 0
  nl_abs_tol = 1e-13
  scheme = implicit-euler
  dt = 0.05
  petsc_options_iname = '-pc_type -pc_sub_type -ksp_gmres_restart'
  petsc_options_value = 'hypre    boomeramg    300'
[]

[Outputs]
  exodus = true
  [./out]
    type = CSV
    time_data = true
    file_base = output/olsson_1d_out
  [../]
[]

(modules/phase_field/test/tests/rigidbodymotion/grain_motion.i)

# test file for applyting advection term and observing rigid body motion of grains
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 25
  ny = 15
  nz = 0
  xmax = 50
  ymax = 25
  zmax = 0
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = FIRST
    family = LAGRANGE
  [../]
  [./w]
    order = FIRST
    family = LAGRANGE
  [../]
  [./eta]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./c_res]
    type = SplitCHParsed
    variable = c
    f_name = F
    kappa_name = kappa_c
    w = w
    coupled_variables = eta
  [../]
  [./w_res]
    type = SplitCHWRes
    variable = w
    mob_name = M
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]
  [./motion]
    type = MultiGrainRigidBodyMotion
    variable = w
    c = c
    v = eta
    grain_tracker_object = grain_center
    grain_force = grain_force
    grain_volumes = grain_volumes
  [../]
  [./eta_dot]
    type = TimeDerivative
    variable = eta
  [../]
  [./vadv_eta]
    type = SingleGrainRigidBodyMotion
    variable = eta
    c = c
    v = eta
    grain_tracker_object = grain_center
    grain_force = grain_force
    grain_volumes = grain_volumes
  [../]
  [./acint_eta]
    type = ACInterface
    variable = eta
    mob_name = M
    coupled_variables = c
    kappa_name = kappa_eta
  [../]
  [./acbulk_eta]
    type = AllenCahn
    variable = eta
    mob_name = M
    f_name = F
    coupled_variables = c
  [../]
[]

[Materials]
  [./pfmobility]
    type = GenericConstantMaterial
    prop_names = 'M    kappa_c  kappa_eta'
    prop_values = '5.0  2.0      0.1'
  [../]
  [./free_energy]
    type = DerivativeParsedMaterial
    coupled_variables = 'c eta'
    constant_names = 'barr_height  cv_eq'
    constant_expressions = '0.1          1.0e-2'
    expression = 16*barr_height*(c-cv_eq)^2*(1-cv_eq-c)^2+(c-eta)^2
    derivative_order = 2
  [../]
[]

[VectorPostprocessors]
  [./forces]
    type = GrainForcesPostprocessor
    grain_force = grain_force
  [../]
  [./grain_volumes]
    type = FeatureVolumeVectorPostprocessor
    flood_counter = grain_center
    execute_on = 'initial timestep_begin'
  [../]
[]

[UserObjects]
  [./grain_center]
    type = GrainTracker
    variable = eta
    outputs = none
    compute_var_to_feature_map = true
    execute_on = 'initial timestep_begin'
  [../]
  [./grain_force]
    type = ConstantGrainForceAndTorque
    execute_on = 'linear nonlinear'
    force = '0.5 0.0 0.0 '
    torque = '0.0 0.0 10.0 '
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  nl_max_its = 30
  scheme = bdf2
  solve_type = NEWTON
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31   preonly   lu      1'
  l_max_its = 30
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-10
  start_time = 0.0
  dt = 0.2
  num_steps = 1
[]

[Outputs]
  exodus = true
[]

[ICs]
  [./rect_c]
    y2 = 20.0
    y1 = 5.0
    inside = 1.0
    x2 = 30.0
    variable = c
    x1 = 10.0
    type = BoundingBoxIC
  [../]
  [./rect_eta]
    y2 = 20.0
    y1 = 5.0
    inside = 1.0
    x2 = 30.0
    variable = eta
    x1 = 10.0
    type = BoundingBoxIC
  [../]
[]

(test/tests/postprocessors/print_perf_data/use_log_data_no_print.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Postprocessors]
  [./elapsed]
    type = PerfGraphData
    section_name = "Root"
    data_type = total
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(test/tests/restart/restart_diffusion/exodus_refined_restart_2_test.i)

[Mesh]
  file = exodus_refined_restart_1.e
  # Restart relies on the ExodusII_IO::copy_nodal_solution()
  # functionality, which only works with ReplicatedMesh.
  parallel_type = replicated
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
    initial_from_file_var = u
    initial_from_file_timestep = 2
  [../]
[]

[Kernels]
  active = 'bodyforce ie'

  [./bodyforce]
    type = BodyForce
    variable = u
    value = 10.0
  [../]

  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  active = 'left right'

  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./right]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 10
  dt = .1
[]

[Outputs]
  file_base = exodus_refined_restart_2
  exodus = true
[]

(test/tests/materials/stateful_prop/stateful_prop_spatial_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 10
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./prop1]
    order = SECOND
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./prop1_output]
    type = MaterialRealAux
    variable = prop1
    property = thermal_conductivity
  [../]
[]

[Kernels]
  [./heat]
    type = MatDiffusionTest
    variable = u
    prop_name = thermal_conductivity
  [../]
  [./ie]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0.0
  [../]
  [./right]
    type = MTBC
    variable = u
    boundary = 1
    grad = 1.0
    prop_name = thermal_conductivity
  [../]
[]

[Materials]
  [./stateful]
    type = StatefulSpatialTest
    block = 0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = 'PJFNK'
  start_time = 0.0
  num_steps = 5
  dt = .1
[]

[Outputs]
  file_base = out_spatial
  [./out]
    type = Exodus
    elemental_as_nodal = true
    execute_elemental_on = none
  [../]
[]

(test/tests/postprocessors/pps_interval/pps_out_interval.i)

[Mesh]
  file = square-2x2-nodeids.e
  # This test can only be run with renumering disabled, so the
  # NodalVariableValue postprocessor's node id is well-defined.
  allow_renumbering = false
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '1'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '2'
    value = 0
  [../]
[]

[Postprocessors]
  active = 'l2 node1 node4'

  [./l2]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./node1]
    type = NodalVariableValue
    variable = u
    nodeid = 15
  [../]

  [./node4]
    type = NodalVariableValue
    variable = v
    nodeid = 10
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 1
[]

[Outputs]
  file_base = pps_out_interval
  time_step_interval = 2
  exodus = true
  [./console]
    type = Console
    time_step_interval = 1
  [../]
[]

(modules/porous_flow/test/tests/jacobian/esbc01.i)

# Tests the Jacobian of PorousFlowEnthalpySink when pore pressure is specified

[Mesh]
  type = GeneratedMesh
  dim = 2
[]

[GlobalParams]
  PorousFlowDictator = dictator
  at_nodes = true
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp temp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0.1
  []
[]

[Variables]
  [pp]
    initial_condition = 1
  []
  [temp]
    initial_condition = 2
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []

  [heat_conduction]
    type = TimeDerivative
    variable = temp
  []
[]

[FluidProperties]
  [simple_fluid]
    type = IdealGasFluidProperties
  []
[]

[Materials]
  [ppss]
    type = PorousFlow1PhaseFullySaturated
    porepressure = pp
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []

  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
[]

[BCs]
  [left]
    type = PorousFlowEnthalpySink
    variable = temp
    boundary = left
    fluid_phase = 0
    T_in = 300
    fp = simple_fluid
    flux_function = -23
  []
[]

[Preconditioning]
  [andy]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 0.1
  num_steps = 1
  nl_rel_tol = 1E-12
  nl_abs_tol = 1E-12

  petsc_options_iname = '-snes_test_err'
  petsc_options_value = '1e-2'
[]

(test/tests/userobjects/pointwise_renormalize_vector/test.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
  []
[]

[Variables]
  [v_x]
  []
  [v_y]
  []
[]

[ICs]
  [v_x]
    type = FunctionIC
    variable = v_x
    function = sin(2*y*pi)
  []
  [v_y]
    type = FunctionIC
    variable = v_y
    function = cos(2*x*pi)
  []
[]

[Kernels]
  [diff_x]
    type = Diffusion
    variable = v_x
  []
  [dt_x]
    type = TimeDerivative
    variable = v_x
  []
  [diff_y]
    type = Diffusion
    variable = v_y
  []
  [dt_y]
    type = TimeDerivative
    variable = v_y
  []
[]

[UserObjects]
  [renormalize]
    type = PointwiseRenormalizeVector
    v = 'v_x v_y'
    execute_on = TIMESTEP_END
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
  dt = 0.01
  num_steps = 10
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/secant_postprocessor/transient_main.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  parallel_type = replicated
  uniform_refine = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [source]
    type = BodyForce
    variable = u
    value = 1
  []
[]

[BCs]
  [left]
    type = PostprocessorDirichletBC
    variable = u
    boundary = left
    postprocessor = 'from_sub'
  []
[]

[Postprocessors]
  [coupling_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
  [from_sub]
    type = Receiver
    default = 0
  []
  [to_sub]
    type = SideAverageValue
    variable = u
    boundary = right
  []
  [average]
    type = ElementAverageValue
    variable = u
  []
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_abs_tol = 1e-14

  # App coupling parameters
  fixed_point_algorithm = 'secant'
  fixed_point_max_its = 30
  transformed_postprocessors = 'from_sub'
[]

[Outputs]
  csv = true
  exodus = false
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = 'transient_sub.i'
    clone_parent_mesh = true
    execute_on = 'timestep_begin'
    # The input was originally created with effectively no restore
    # see the changes made for #5554 then reverted in #28115
    no_restore = true
  []
[]

[Transfers]
  [left_from_sub]
    type = MultiAppPostprocessorTransfer
    from_multi_app = sub
    from_postprocessor = 'to_main'
    to_postprocessor = 'from_sub'
    reduction_type = 'average'
  []
  [right_to_sub]
    type = MultiAppPostprocessorTransfer
    to_multi_app = sub
    from_postprocessor = 'to_sub'
    to_postprocessor = 'from_main'
  []
[]

(test/tests/multiapps/picard_sub_cycling/picard_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./v]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
  [./force_u]
    type = CoupledForce
    variable = u
    v = v
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = picard_sub.i
    sub_cycling = true
    interpolate_transfers = true
  [../]
[]

[Transfers]
  [./v_from_sub]
    type = MultiAppNearestNodeTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  [../]
  [./u_to_sub]
    type = MultiAppNearestNodeTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  [../]
[]

(modules/porous_flow/test/tests/jacobian/line_sink03.i)

# PorousFlowPeacemanBorehole with 2-phase, 3-components, with enthalpy, internal_energy, and thermal_conductivity
# NOTE: this test has suffered from repeated failures since its inception.  The problem always appears to be caused by having too many Dirac points in an element: see #10471.  As of Nov2020, the dirac7 DiracKernel uses only one Dirac point, not ten_points.bh.  One day it would be good to be able to use point_file = ten_points.bh
[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 1
  ny = 1
  nz = 1
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  zmin = -1
  zmax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [ppwater]
  []
  [ppgas]
  []
  [massfrac_ph0_sp0]
  []
  [massfrac_ph0_sp1]
  []
  [massfrac_ph1_sp0]
  []
  [massfrac_ph1_sp1]
  []
  [temp]
  []
[]


[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp ppwater ppgas massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
    number_fluid_phases = 2
    number_fluid_components = 3
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.5
    alpha = 1
  []
  [dummy_outflow0]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow1]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow2]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow3]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow4]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow5]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow6]
    type = PorousFlowSumQuantity
  []
  [dummy_outflow7]
    type = PorousFlowSumQuantity
  []
[]

[ICs]
  [temp]
    type = RandomIC
    variable = temp
    min = 1
    max = 2
  []
  [ppwater]
    type = RandomIC
    variable = ppwater
    min = -1
    max = 0
  []
  [ppgas]
    type = RandomIC
    variable = ppgas
    min = 0
    max = 1
  []
  [massfrac_ph0_sp0]
    type = RandomIC
    variable = massfrac_ph0_sp0
    min = 0
    max = 1
  []
  [massfrac_ph0_sp1]
    type = RandomIC
    variable = massfrac_ph0_sp1
    min = 0
    max = 1
  []
  [massfrac_ph1_sp0]
    type = RandomIC
    variable = massfrac_ph1_sp0
    min = 0
    max = 1
  []
  [massfrac_ph1_sp1]
    type = RandomIC
    variable = massfrac_ph1_sp1
    min = 0
    max = 1
  []
[]

[Kernels]
  [dummy_temp]
    type = TimeDerivative
    variable = temp
  []
  [dummy_ppwater]
    type = TimeDerivative
    variable = ppwater
  []
  [dummy_ppgas]
    type = TimeDerivative
    variable = ppgas
  []
  [dummy_m00]
    type = TimeDerivative
    variable = massfrac_ph0_sp0
  []
  [dummy_m01]
    type = TimeDerivative
    variable = massfrac_ph0_sp1
  []
  [dummy_m10]
    type = TimeDerivative
    variable = massfrac_ph1_sp0
  []
  [dummy_m11]
    type = TimeDerivative
    variable = massfrac_ph1_sp1
  []
[]

[FluidProperties]
  [simple_fluid0]
    type = SimpleFluidProperties
    bulk_modulus = 1.5
    density0 = 1
    thermal_expansion = 0
    viscosity = 1
    cv = 1.1
  []
  [simple_fluid1]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 0.5
    thermal_expansion = 0
    viscosity = 1.4
    cv = 1.8
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [ppss]
    type = PorousFlow2PhasePP
    phase0_porepressure = ppwater
    phase1_porepressure = ppgas
    capillary_pressure = pc
  []
  [massfrac]
    type = PorousFlowMassFraction
    mass_fraction_vars = 'massfrac_ph0_sp0 massfrac_ph0_sp1 massfrac_ph1_sp0 massfrac_ph1_sp1'
  []
  [simple_fluid0]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid0
    phase = 0
  []
  [simple_fluid1]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid1
    phase = 1
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm0]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [relperm1]
    type = PorousFlowRelativePermeabilityCorey
    n = 3
    phase = 1
  []
  [thermal_conductivity]
    type = PorousFlowThermalConductivityIdeal
    dry_thermal_conductivity = '0.1 0.02 0.03 0.02 0.0 0.01 0.03 0.01 0.3'
  []
[]

[DiracKernels]
  #active = 'dirac6 dirac2' # incorrect jacobian for ny=2
  #active = 'dirac0 dirac1 dirac2 dirac3 dirac4 dirac5' # correct jacobian for ny=2
  #active = 'dirac0 dirac1 dirac2 dirac3 dirac4 dirac5 dirac6' # incorrect jacobian for ny=2
  #active = 'dirac0 dirac1 dirac2 dirac3 dirac4 dirac5 dirac7' # correct jacobian in dbg, but not in opt, for ny=2
  #active = 'dirac0 dirac1 dirac2 dirac3 dirac4 dirac5 dirac6' # incorrect jacobian in dbg, but correct for opt, for ny=1
  #active = 'dirac0 dirac1 dirac2 dirac3 dirac4 dirac5' # correct jacobian, for ny=1
  #active = 'dirac0 dirac1 dirac2 dirac3 dirac4 dirac5 dirac6' # incorrect jacobian in dbg, but correct for opt, for ny=1.  row24, col 21 and 22 are wrong.  row24=node3, 21=ppwater, 22=ppgas, 24=massfrac_ph0_sp1 (all at node3)
  [dirac0]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = ppwater
    point_file = one_point.bh
    line_length = 1
    SumQuantityUO = dummy_outflow0
    character = 1
    bottom_p_or_t = -10
    unit_weight = '1 2 3'
    re_constant = 0.123
  []
  [dirac1]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = ppgas
    line_length = 1
    line_direction = '-1 -1 -1'
    use_relative_permeability = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow1
    character = -0.5
    bottom_p_or_t = 10
    unit_weight = '1 2 -3'
    re_constant = 0.3
  []
  [dirac2]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = massfrac_ph0_sp0
    line_length = 1.3
    line_direction = '1 0 1'
    use_mobility = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow2
    character = 0.6
    bottom_p_or_t = -4
    unit_weight = '-1 -2 -3'
    re_constant = 0.4
  []
  [dirac3]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = massfrac_ph0_sp1
    line_length = 1.3
    line_direction = '1 1 1'
    use_enthalpy = true
    mass_fraction_component = 0
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow3
    character = -1
    bottom_p_or_t = 3
    unit_weight = '0.1 0.2 0.3'
    re_constant = 0.5
  []
  [dirac4]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = massfrac_ph1_sp0
    function_of = temperature
    line_length = 0.9
    line_direction = '1 1 1'
    mass_fraction_component = 1
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow4
    character = 1.1
    bottom_p_or_t = -7
    unit_weight = '-1 2 3'
    re_constant = 0.6
  []
  [dirac5]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = temp
    line_length = 0.9
    function_of = temperature
    line_direction = '1 2 3'
    mass_fraction_component = 2
    use_internal_energy = true
    point_file = one_point.bh
    SumQuantityUO = dummy_outflow5
    character = 0.9
    bottom_p_or_t = -8
    unit_weight = '1 2 1'
    re_constant = 0.7
  []
  [dirac6]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 0
    variable = ppwater
    point_file = nine_points.bh
    SumQuantityUO = dummy_outflow6
    character = 0
    bottom_p_or_t = 10
    unit_weight = '0.0 0.0 0.0'
  []
  [dirac7]
    type = PorousFlowPeacemanBorehole
    fluid_phase = 1
    variable = massfrac_ph0_sp0
    use_mobility = true
    mass_fraction_component = 1
    use_relative_permeability = true
    use_internal_energy = true
    point_file = one_point.bh
    #NOTE this commented-out line: point_file = ten_points.bh
    SumQuantityUO = dummy_outflow7
    character = -1
    bottom_p_or_t = 10
    unit_weight = '0.1 0.2 0.3'
  []
[]


[Preconditioning]
  [check]
    type = SMP
    full = true
    #petsc_options = '-snes_test_display'
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  file_base = line_sink03
[]

(modules/porous_flow/test/tests/hysteresis/vary_sat_1.i)

# The saturation is varied with time and the capillary pressure is computed
[Mesh]
  [mesh]
    type = GeneratedMeshGenerator
    dim = 1
  []
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    number_fluid_phases = 1
    number_fluid_components = 1
    porous_flow_vars = ''
  []
[]

[Variables]
  [dummy]
  []
[]

[Kernels]
  [dummy]
    type = TimeDerivative
    variable = dummy
  []
[]

[AuxVariables]
  [sat]
    initial_condition = 1
  []
  [hys_order]
    family = MONOMIAL
    order = CONSTANT
  []
  [pc]
    family = MONOMIAL
    order = CONSTANT
  []
[]

[AuxKernels]
  [sat_aux]
    type = FunctionAux
    variable = sat
    function = '1 - t'
  []
  [hys_order]
    type = PorousFlowPropertyAux
    variable = hys_order
    property = hysteresis_order
  []
  [pc]
    type = PorousFlowPropertyAux
    variable = pc
    property = hysteretic_info
  []
[]

[Materials]
  [hys_order]
    type = PorousFlowHysteresisOrder
  []
  [pc_calculator]
    type = PorousFlowHystereticInfo
    alpha_d = 10.0
    alpha_w = 7.0
    n_d = 1.5
    n_w = 1.9
    S_l_min = 0.1
    S_lr = 0.2
    S_gr_max = 0.3
    Pc_max = 12.0
    high_ratio = 0.9
    low_extension_type = quadratic
    high_extension_type = power
    sat_var = sat
  []
[]

[Postprocessors]
  [hys_order]
    type = PointValue
    point = '0 0 0'
    variable = hys_order
  []
  [sat]
    type = PointValue
    point = '0 0 0'
    variable = sat
  []
  [pc]
    type = PointValue
    point = '0 0 0'
    variable = pc
  []
[]

[Executioner]
  type = Transient
  solve_type = Linear
  dt = 0.1
  end_time = 1
[]

[Outputs]
  csv = true
[]

(test/tests/postprocessors/average_variable_change/transient.i)

!include base.i

[Kernels]
  [time_derivative]
    type = TimeDerivative
    variable = sol
  []
[]

[Postprocessors]
  [sol_nlit]
    type = AverageVariableChange
    variable = sol
    change_over = nonlinear_iteration
    norm = l1
    execute_on = ${pp_execute_on}
  []
  [sol_ts]
    type = AverageVariableChange
    variable = sol
    change_over = time_step
    norm = l1
    execute_on = ${pp_execute_on}
  []

  [aux_nlit]
    type = AverageVariableChange
    variable = aux
    change_over = nonlinear_iteration
    norm = l1
    execute_on = ${pp_execute_on}
  []
  [aux_ts]
    type = AverageVariableChange
    variable = aux
    change_over = time_step
    norm = l1
    execute_on = ${pp_execute_on}
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 2
[]

(test/tests/multiapps/sub_cycling/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '0 0 0'
    input_files = sub.i
    sub_cycling = true
  [../]
[]

(test/tests/materials/output/ad_output.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 5
  ny = 5
  xmax = 10
  ymax = 10
  uniform_refine = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 10
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Materials]
  [test_material]
    type = ADOutputTestMaterial
    block = 0
    variable = u
    outputs = all
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(python/peacock/tests/input_tab/InputTree/gold/lcf1.i)

# LinearCombinationFunction function test
# See [Functions] block for a description of the tests
[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 2
  nx = 10
[]

[Variables]
  [dummy]
  []
[]

[Kernels]
  [dummy_u]
    type = TimeDerivative
    variable = dummy
  []
[]

[AuxVariables]
  [the_linear_combo]
  []
[]

[AuxKernels]
  [the_linear_combo]
    type = FunctionAux
    variable = the_linear_combo
    function = the_linear_combo
  []
[]

[Functions]
  [xtimes]
    type = ParsedFunction
    expression = '1.1*x'
  []
  [twoxplus1]
    type = ParsedFunction
    expression = '2*x+1'
  []
  [xsquared]
    type = ParsedFunction
    expression = '(x-2)*x'
  []
  [tover2]
    type = ParsedFunction
    expression = '0.5*t'
  []
  [the_linear_combo]
    type = LinearCombinationFunction
    functions = 'xtimes twoxplus1 xsquared tover2'
    w = '3 -1.2 0.4 3'
  []
  [should_be_answer]
    type = ParsedFunction
    expression = '3*1.1*x-1.2*(2*x+1)+0.4*(x-2)*x+3*0.5*t'
  []
[]

[Postprocessors]
  [should_be_zero]
    type = NodalL2Error
    function = should_be_answer
    variable = 'the_linear_combo'
  []
[]

[Executioner]
  type = Transient
  dt = 0.5
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = lcf1
  hide = 'dummy'
  exodus = false
  csv = true
[]

(modules/phase_field/test/tests/PolynomialFreeEnergy/direct_order8_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
  xmax = 125
[]

[GlobalParams]
  polynomial_order = 8
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./c_IC]
    type = SmoothCircleIC
    x1 = 0.0
    y1 = 0.0
    radius = 60.0
    invalue = 1.0
    outvalue = 0.1
    int_width = 60.0
    variable = c
  [../]
[]

[Kernels]
  [./local_energy]
    type = CahnHilliard
    variable = c
    f_name = F
  [../]
  [./gradient_energy]
    type = CHInterface
    variable = c
    mob_name = M
    kappa_name = kappa
  [../]
  [./cdot]
    type = TimeDerivative
    variable = c
  [../]
[]

[Materials]
  [./Copper]
    type = PFParamsPolyFreeEnergy
    c = c
    T = 1000 # K
    int_width = 30.0
    length_scale = 1.0e-9
    time_scale = 1.0e-9
    D0 = 3.1e-5 # m^2/s, from Brown1980
    Em = 0.71 # in eV, from Balluffi1978 Table 2
    Ef = 1.28 # in eV, from Balluffi1978 Table 2
    surface_energy = 0.7 # Total guess
  [../]
  [./free_energy]
    type = PolynomialFreeEnergy
    c = c
    derivative_order = 2
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = NEWTON
  petsc_options_iname = -pc_type
  petsc_options_value = lu

  l_max_its = 30
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8

  start_time = 0.0
  num_steps = 100
  dt = 4
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/misc/interface_grad.i)

#
# Test a gradient continuity interfacekernel
#

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 20
    ny = 10
    ymax = 0.5
  []
  [./box1]
    type = SubdomainBoundingBoxGenerator
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '0.51 1 0'
    input = gen
  [../]
  [./box2]
    type = SubdomainBoundingBoxGenerator
    block_id = 2
    bottom_left = '0.49 0 0'
    top_right = '1 1 0'
    input = box1
  [../]
  [./iface_u]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = 1
    paired_block = 2
    new_boundary = 10
    input = box2
  [../]
  [./iface_v]
    type = SideSetsBetweenSubdomainsGenerator
    primary_block = 2
    paired_block = 1
    new_boundary = 11
    input = iface_u
  [../]
[]

[Variables]
  [./u]
    block = 1
    [./InitialCondition]
      type = FunctionIC
      function = 'r:=sqrt((x-0.4)^2+(y-0.5)^2);if(r<0.05,5,1)'
    [../]
  [../]
  [./v]
    block = 2
    initial_condition = 0.8
  [../]
[]

[Kernels]
  [./u_diff]
    type = Diffusion
    variable = u
    block = 1
  [../]
  [./u_dt]
    type = TimeDerivative
    variable = u
    block = 1
  [../]
  [./v_diff]
    type = Diffusion
    variable = v
    block = 2
  [../]
  [./v_dt]
    type = TimeDerivative
    variable = v
    block = 2
  [../]
[]

[InterfaceKernels]
  [./iface]
    type = InterfaceDiffusionFluxMatch
    variable = u
    boundary = 10
    neighbor_var = v
  [../]
[]

[BCs]
  [./u_boundary_term]
    type = DiffusionFluxBC
    variable = u
    boundary = 10
  [../]
  [./v_boundary_term]
    type = DiffusionFluxBC
    variable = v
    boundary = 11
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.002
  num_steps = 10
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
[]

(modules/combined/test/tests/multiphase_mechanics/nonsplit_gradderiv_action.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 5
  xmax = 10
  ymax = 10
[]

[GlobalParams]
  displacements = 'disp_x disp_y'
  displacement_gradients = 'gxx gxy gyx gyy'
[]

[Modules]
  [./PhaseField]
    [./DisplacementGradients]
    [../]
  [../]
[]

[AuxVariables]
  [./disp_x]
    [./InitialCondition]
      type = FunctionIC
      function = '0.1*sin(2*x/10*3.14159265359)'
    [../]
  [../]
  [./disp_y]
    [./InitialCondition]
      type = FunctionIC
      function = '0.1*sin(1*y/10*3.14159265359)'
    [../]
  [../]
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
    initial_condition = 0
  [../]
[]

[Kernels]
  [./dt]
    type = TimeDerivative
    variable = c
  [../]
  [./bulk]
    type = CahnHilliard
    variable = c
    mob_name = M
    f_name = F
  [../]
  [./int]
    type = CHInterface
    variable = c
    mob_name = M
    kappa_name = kappa_c
  [../]
[]

[BCs]
  [./Periodic]
    [./All]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'M  kappa_c'
    prop_values = '1  0.1'
  [../]

  [./elasticity_tensor]
    type = ComputeConcentrationDependentElasticityTensor
    c = c
    C0_ijkl = '1.0 1.0'
    C1_ijkl = '3.0 3.0'
    fill_method0 = symmetric_isotropic
    fill_method1 = symmetric_isotropic
  [../]
  [./smallstrain]
    type = ComputeSmallStrain
  [../]
  [./linearelastic_a]
    type = ComputeLinearElasticStress
  [../]
  [./elastic_free_energy]
    type = ElasticEnergyMaterial
    f_name = F
    args = 'c'
    derivative_order = 3
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = NEWTON

  l_max_its = 30
  l_tol = 1.0e-6

  nl_max_its = 15
  nl_rel_tol = 1.0e-7
  nl_abs_tol = 1.0e-10

  num_steps = 2
  dt = 1
[]

[Outputs]
  perf_graph = true
  file_base = nonsplit_gradderiv_out
  exodus = true
[]

(test/tests/outputs/recover/recover2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  file_base = recover_out
  exodus = true
[]

(modules/functional_expansion_tools/examples/2D_interface_no_material/sub.i)

# Derived from the example '2D_interface' with the following differences:
#
#   1) No materials are used
[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0.4
  xmax = 2.4
  nx = 30
  ymin = 0.0
  ymax = 10.0
  ny = 20
[]

[Variables]
  [./s]
  [../]
[]

[Kernels]
  [./diff_s]
    type = Diffusion
    variable = s
  [../]
  [./time_diff_s]
    type = TimeDerivative
    variable = s
  [../]
[]

[ICs]
  [./start_s]
    type = ConstantIC
    value = 2
    variable = s
  [../]
[]

[BCs]
  [./bottom]
    type = DirichletBC
    variable = s
    boundary = bottom
    value = 0.1
  [../]
  [./interface_flux]
    type = FXFluxBC
    boundary = left
    variable = s
    function = FX_Basis_Flux_Sub
  [../]
[]

[Functions]
  [./FX_Basis_Value_Sub]
    type = FunctionSeries
    series_type = Cartesian
    orders = '4'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
  [./FX_Basis_Flux_Sub]
    type = FunctionSeries
    series_type = Cartesian
    orders = '5'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Sub]
    type = FXBoundaryValueUserObject
    function = FX_Basis_Value_Sub
    variable = s
    boundary = left
  [../]
  [./FX_Flux_UserObject_Sub]
    type = FXBoundaryFluxUserObject
    function = FX_Basis_Flux_Sub
    variable = s
    boundary = left
    diffusivity = 1.0
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1.0
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

(test/tests/time_steppers/timesequence_stepper/timesequence_restart_failure.i)

[Mesh]
  file = timesequence_restart_failure1_cp/0002-mesh.cpa.gz
[]

[Problem]
  restart_file_base = timesequence_restart_failure1_cp/0002
  # There is an initial conditions overwriting the restart on the nonlinear variable u
  # As you can see in the gold file, this makes the initial step output be from the
  # initial condition
  allow_initial_conditions_with_restart = true
[]

[Functions]
  [exact_fn]
    type = ParsedFunction
    expression = t*t*(x*x+y*y)
  []

  [forcing_fn]
    type = ParsedFunction
    expression = 2*t*(x*x+y*y)-4*t*t
  []
[]

[Variables]
  [u]
    family = LAGRANGE
    order = SECOND
  []
[]

[ICs]
  [u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []

  [ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  []
[]

[BCs]
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  []
[]

[Executioner]
  type = Transient
  end_time = 4.0
  [TimeStepper]
    type = TimeSequenceStepper
    time_sequence = '0   0.85 1.2 1.3 2 4'
  []
[]

[Outputs]
  exodus = true
[]

(modules/thermal_hydraulics/test/tests/controls/thm_solve_postprocessor_control/test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Functions]
  [active_fn]
    type = PiecewiseConstant
    direction = right
    xy_data = '
      0.2 0
      0.4 1
      0.6 0'
  []
[]

[Postprocessors]
  [active]
    type = FunctionValuePostprocessor
    function = active_fn
  []
[]

[Components]
[]

[ControlLogic]
  [solve_on_off]
    type = THMSolvePostprocessorControl
    postprocessor = active
  []
[]


[Executioner]
  type = Transient
  dt = 0.1
  num_steps = 6
  abort_on_solve_fail = true
[]

[Outputs]
  csv = true
[]

(test/tests/userobjects/nodal_patch_recovery/nodal_patch_recovery.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
  []
[]

[UserObjects]
  [u_patch]
    type = NodalPatchRecoveryMaterialProperty
    patch_polynomial_order = FIRST
    property = 'u'
    execute_on = 'TIMESTEP_END'
  []
[]

[Variables]
  [v]
    order = FIRST
    family = LAGRANGE
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = v
  []
  [diff]
    type = Diffusion
    variable = v
  []
[]

[AuxVariables]
  [u_recovered]
  []
  [u_nodal]
  []
  [u_diff]
  []
[]

[AuxKernels]
  [u_recovered]
    type = NodalPatchRecoveryAux
    variable = u_recovered
    nodal_patch_recovery_uo = u_patch
    execute_on = 'TIMESTEP_END'
  []
  [u_nodal]
    type = ParsedAux
    variable = u_nodal
    expression = v^2
    coupled_variables = v
  []
  [u_diff]
    type = ParsedAux
    variable = u_diff
    expression = u_nodal-u_recovered
    coupled_variables = 'u_nodal u_recovered'
  []
[]

[BCs]
  [fix_left]
    type = FunctionDirichletBC
    variable = v
    boundary = 'left'
    function = y+1
  []
  [fix_right]
    type = DirichletBC
    variable = v
    boundary = 'right'
    value = 0
  []
[]

[Materials]
  [u]
    type = ParsedMaterial
    expression = v^2
    property_name = u
    coupled_variables = v
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON

  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'

  automatic_scaling = true

  dt = 0.4
  num_steps = 5

  nl_abs_tol = 1e-10
  nl_rel_tol = 1e-10
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
[]

(modules/phase_field/test/tests/initial_conditions/RndBoundingBoxIC.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 40
  ny = 8
  xmax = 50
  ymax = 25
  elem_type = QUAD4
[]

[Variables]
  [./c]
    order = THIRD
    family = HERMITE
  [../]
[]

[ICs]
  [./InitialCondition]
    type = RndBoundingBoxIC
    x1 = 15.0
    x2 = 35.0
    y1 = 0.0
    y2 = 25.0
    mx_invalue = 1.0
    mn_invalue = 0.9
    mx_outvalue = -0.7
    mn_outvalue = -0.8
    variable = c
  [../]
[]

[Kernels]
  [./ie_c]
    type = TimeDerivative
    variable = c
  [../]
  [./CHSolid]
    type = CHMath
    variable = c
    mob_name = M
  [../]
  [./CHInterface]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Materials]
  [./constant]
    type = GenericConstantMaterial
    prop_names  = 'M kappa_c'
    prop_values = '1.0 1.0'
  [../]
[]

[Executioner]
  type = Transient
  scheme = 'bdf2'

  solve_type = 'NEWTON'
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre boomeramg 31'

  l_max_its = 15
  nl_max_its = 10

  start_time = 0.0
  num_steps = 4
  dt = 5.0
[]

[Outputs]
  exodus = true
[]

(modules/scalar_transport/test/tests/multiple-species/single-specie.i)

Krtt=0.
Kdt2=1
Pt2_left=1
Pt2_right=0
d_t=1
l=1

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 20
  xmax = ${l}
[]

[Problem]
  type = ReferenceResidualProblem
  extra_tag_vectors = 'ref'
  reference_vector = ref
[]

[Variables]
  [t][]
[]

[Kernels]
  [time_t]
    type = TimeDerivative
    variable = t
    extra_vector_tags = ref
  []
  [diff_t]
    type = MatDiffusion
    variable = t
    diffusivity = ${d_t}
    extra_vector_tags = ref
  []
[]

[BCs]
  [tt_recombination]
    type = BinaryRecombinationBC
    variable = t
    v = t
    Kr = Krtt
    boundary = 'left right'
  []
  [t_from_t2_left]
    type = DissociationFluxBC
    variable = t
    v = ${Pt2_left} # Partial pressure of T2
    Kd = Kdt2
    boundary = left
  []
  [t_from_t2_right]
    type = DissociationFluxBC
    variable = t
    v = ${Pt2_right} # Partial pressure of T2
    Kd = Kdt2
    boundary = right
  []
[]

[Materials]
  [Krtt]
    type = ADConstantMaterial
    property_name = 'Krtt'
    value = ${Krtt}
  []
  [Kdt2]
    type = ADConstantMaterial
    property_name = 'Kdt2'
    value = '${Kdt2}'
  []
[]

[Postprocessors]
  [downstream_t_flux]
    type = SideFluxAverage
    variable = t
    boundary = right
    diffusivity = ${d_t}
  []
  [downstream_t_conc]
    type = SideAverageValue
    variable = t
    boundary = right
    outputs = 'none'
  []
  [upstream_t_conc]
    type = SideAverageValue
    variable = t
    boundary = left
    outputs = 'none'
  []
  [difference]
    type = DifferencePostprocessor
    value1 = upstream_t_conc
    value2 = downstream_t_conc
    outputs = 'none'
  []
  [domain_averaged_flux]
    type = ScalePostprocessor
    scaling_factor = ${fparse d_t / l}
    value = difference
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  num_steps = 40
  steady_state_detection = true
  dt = .1
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/multiapp_projection_transfer/fixed_meshes_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 5
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./from_parent]
  [../]
  [./elemental_from_parent]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.01
  solve_type = NEWTON
[]

[Outputs]
  exodus = true
  #
[]

(test/tests/postprocessors/nodal_var_value/screen_output_test.i)

[Mesh]
  file = square-2x2-nodeids.e
  # This test can only be run with renumering disabled, so the
  # NodalVariableValue postprocessor's node id is well-defined.
  allow_renumbering = false
[]

[Variables]
  active = 'u v'

  [./u]
    order = SECOND
    family = LAGRANGE
  [../]

  [./v]
    order = SECOND
    family = LAGRANGE
  [../]
[]

[Functions]
  active = 'force_fn exact_fn left_bc'

  [./force_fn]
    type = ParsedFunction
    expression = '1-x*x+2*t'
  [../]

  [./exact_fn]
    type = ParsedFunction
    expression = '(1-x*x)*t'
  [../]

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = '
    time_u diff_u ffn_u
    time_v diff_v'

  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diff_u]
    type = Diffusion
    variable = u
  [../]

  [./ffn_u]
    type = BodyForce
    variable = u
    function = force_fn
  [../]

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[BCs]
  active = 'all_u left_v right_v'

  [./all_u]
    type = FunctionDirichletBC
    variable = u
    boundary = '1'
    function = exact_fn
  [../]

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '2'
    value = 0
  [../]
[]

[Postprocessors]
  active = 'l2 node1 node4'

  [./l2]
    type = ElementL2Error
    variable = u
    function = exact_fn
  [../]

  [./node1]
    type = NodalVariableValue
    variable = u
    nodeid = 15
  [../]

  [./node4]
    type = NodalVariableValue
    variable = v
    nodeid = 10
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
  [./console]
    type = Console
    max_rows = 2
  [../]
[]

(modules/porous_flow/test/tests/jacobian/heat_advection01.i)

# 1phase, unsaturated, heat advection
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  xmin = 0
  xmax = 1
  ny = 1
  ymin = 0
  ymax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [temp]
  []
  [pp]
  []
[]

[ICs]
  [temp]
    type = RandomIC
    variable = temp
    max = 1.0
    min = 0.0
  []
  [pp]
    type = RandomIC
    variable = pp
    max = 0.0
    min = -1.0
  []
[]

[Kernels]
  [pp]
    type = TimeDerivative
    variable = pp
  []
  [heat_advection]
    type = PorousFlowHeatAdvection
    variable = temp
    gravity = '1 2 3'
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureVG
    m = 0.6
    alpha = 1.3
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 1.1
    thermal_expansion = 0
    viscosity = 1
    cv = 1.1
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [relperm]
    type = PorousFlowRelativePermeabilityCorey
    n = 2
    phase = 0
  []
  [PS]
    type = PorousFlow1PhaseP
    porepressure = pp
    capillary_pressure = pc
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
[]

[Preconditioning]
  active = check
  [andy]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000'
  []
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-ksp_type -pc_type -snes_atol -snes_rtol -snes_max_it -snes_type'
    petsc_options_value = 'bcgs bjacobi 1E-15 1E-10 10000 test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  exodus = false
[]

(modules/navier_stokes/test/tests/finite_element/ins/lid_driven/lid_driven_split.i)

[GlobalParams]
  gravity = '0 0 0'
[]

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    xmin = 0
    xmax = 1.0
    ymin = 0
    ymax = 1.0
    nx = 40
    ny = 40
    elem_type = QUAD4
  []
  [./corner_node]
    type = ExtraNodesetGenerator
    boundary = 99
    nodes = '0'
    input = gen
  [../]
[]

[Variables]
  # x-velocity
  [./u]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0.0
    [../]
  [../]

  # y-velocity
  [./v]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0.0
    [../]
  [../]

  # x-acceleration
  [./a1]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0.0
    [../]
  [../]

  # y-acceleration
  [./a2]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0.0
    [../]
  [../]

  # Pressure
  [./p]
    order = FIRST
    family = LAGRANGE

    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]



[Kernels]
  # split-momentum, x
  [./x_split_momentum]
    type = INSSplitMomentum
    variable = a1
    u = u
    v = v
    a1 = a1
    a2 = a2
    component = 0
  [../]

  # split-momentum, y
  [./y_split_momentum]
    type = INSSplitMomentum
    variable = a2
    u = u
    v = v
    a1 = a1
    a2 = a2
    component = 1
  [../]

  # projection-x, space
  [./x_proj_space]
    type = INSProjection
    variable = u
    a1 = a1
    a2 = a2
    pressure = p
    component = 0
  [../]

  # projection-y, space
  [./y_proj_space]
    type = INSProjection
    variable = v
    a1 = a1
    a2 = a2
    pressure = p
    component = 1
  [../]

  # projection-x, time
  [./x_proj_time]
    type = TimeDerivative
    variable = u
  [../]

  # projection-y, time
  [./y_proj_time]
    type = TimeDerivative
    variable = v
  [../]

  # Pressure
  [./pressure_poisson]
    type = INSPressurePoisson
    variable = p
    a1 = a1
    a2 = a2
  [../]
[]




[BCs]
  [./x_no_slip]
    type = DirichletBC
    variable = u
    boundary = 'bottom right left'
    value = 0.0
  [../]

  [./lid]
    type = DirichletBC
    variable = u
    boundary = 'top'
    value = 100.0
  [../]

  [./y_no_slip]
    type = DirichletBC
    variable = v
    boundary = 'bottom right top left'
    value = 0.0
  [../]

  # Acceleration boundary conditions.  What should these
  # be on the lid?  What should they be in general?  I tried pinning
  # values of acceleration at one node but that didn't seem to work.
  # I also tried setting non-zero acceleration values on the lid but
  # that didn't converge.
  [./x_no_accel]
    type = DirichletBC
    variable = a1
    boundary = 'bottom right top left'
    value = 0.0
  [../]

  [./y_no_accel]
    type = DirichletBC
    variable = a2
    boundary = 'bottom right top left'
    value = 0.0
  [../]

  # With solid walls everywhere, we specify dp/dn=0, i.e the
  # "natural BC" for pressure.  Technically the problem still
  # solves without pinning the pressure somewhere, but the pressure
  # bounces around a lot during the solve, possibly because of
  # the addition of arbitrary constants.
  [./pressure_pin]
    type = DirichletBC
    variable = p
    boundary = '99'
    value = 0
  [../]
[]

[Materials]
  [./const]
    type = GenericConstantMaterial
    block = 0
    # rho = 1000    # kg/m^3
    # mu = 0.798e-3 # Pa-s at 30C
    # cp = 4.179e3  # J/kg-K at 30C
    # k = 0.58      # W/m-K at ?C

    # Dummy parameters
    prop_names = 'rho mu cp k'
    prop_values = '1  1  1  1'
  [../]
[]

[Preconditioning]
# [./FDP_Newton]
#   type = FDP
#   full = true
#   petsc_options = '-snes'
#   #petsc_options_iname = '-mat_fd_coloring_err'
#   #petsc_options_value = '1.e-10'
# [../]

[./SMP_PJFNK]
  type = SMP
  full = true

  #Preconditioned JFNK (default)
  solve_type = 'PJFNK'


[../]
[]


[Executioner]
  type = Transient
  dt = 1.e-4
  dtmin = 1.e-6
  petsc_options_iname = '-ksp_gmres_restart '
  petsc_options_value = '300                '

  line_search = 'none'

  nl_rel_tol = 1e-5
  nl_max_its = 6
  l_tol = 1e-6
  l_max_its = 100
  start_time = 0.0
  num_steps = 1000
[]




[Outputs]
  file_base = lid_driven_split_out
  exodus = true
[]

(test/tests/transfers/multiapp_userobject_transfer/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 20
  ny = 20
  nz = 20
  # The MultiAppUserObjectTransfer object only works with ReplicatedMesh
  parallel_type = replicated
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./multi_layered_average]
  [../]
  [./element_multi_layered_average]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 1
  dt = 0.001 # This will be constrained by the multiapp

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  l_tol = 1e-8
  nl_rel_tol = 1e-10
[]


[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub_app]
    positions = '0.3 0.1 0.3 0.7 0.1 0.3'
    type = TransientMultiApp
    input_files = sub.i
    app_type = MooseTestApp
  [../]
[]

[Transfers]
  [./layered_transfer]
    user_object = layered_average
    variable = multi_layered_average
    type = MultiAppUserObjectTransfer
    from_multi_app = sub_app
    skip_coordinate_collapsing = true
  [../]
  [./element_layered_transfer]
    user_object = layered_average
    variable = element_multi_layered_average
    type = MultiAppUserObjectTransfer
    from_multi_app = sub_app
    skip_coordinate_collapsing = true
  [../]
[]

(modules/porous_flow/test/tests/jacobian/heat_advection01_fullsat_upwind.i)

# 1phase, using fully-saturated, fully-upwinded version, heat advection
[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  xmin = 0
  xmax = 1
  ny = 1
  ymin = 0
  ymax = 1
[]

[GlobalParams]
  PorousFlowDictator = dictator
[]

[Variables]
  [temp]
  []
  [pp]
  []
[]

[ICs]
  [temp]
    type = RandomIC
    variable = temp
    max = 1.0
    min = 0.0
  []
  [pp]
    type = RandomIC
    variable = pp
    max = 0.0
    min = -1.0
  []
[]

[Kernels]
  [pp]
    type = TimeDerivative
    variable = pp
  []
  [heat_advection]
    type = PorousFlowFullySaturatedUpwindHeatAdvection
    variable = temp
    gravity = '1 2 3'
  []
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'temp pp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
[]

[FluidProperties]
  [simple_fluid]
    type = SimpleFluidProperties
    bulk_modulus = 0.5
    density0 = 1.1
    thermal_expansion = 1
    viscosity = 1
    cv = 1.1
  []
[]

[Materials]
  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
  [permeability]
    type = PorousFlowPermeabilityConst
    permeability = '1 0 0 0 2 0 0 0 3'
  []
  [PS]
    type = PorousFlow1PhaseFullySaturated
    porepressure = pp
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []
[]

[Preconditioning]
  active = check
  [check]
    type = SMP
    full = true
    petsc_options_iname = '-snes_type'
    petsc_options_value = 'test'
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 1
  end_time = 1
[]

[Outputs]
  exodus = false
[]

(modules/functional_expansion_tools/examples/2D_interface_no_material/main.i)

# Derived from the example '2D_interface' with the following differences:
#
#   1) No materials are used
[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0.0
  xmax = 0.4
  nx = 6
  ymin = 0.0
  ymax = 10.0
  ny = 20
[]

[Variables]
  [./m]
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./source_m]
    type = BodyForce
    variable = m
    value = 100
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    value = 2
    variable = m
  [../]
[]

[BCs]
  [./interface_value]
    type = FXValueBC
    variable = m
    boundary = right
    function = FX_Basis_Value_Main
  [../]
  [./interface_flux]
    type = FXFluxBC
    boundary = right
    variable = m
    function = FX_Basis_Flux_Main
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '4'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
  [./FX_Basis_Flux_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '5'
    physical_bounds = '0.0 10'
    y = Legendre
  [../]
[]

[UserObjects]
  [./FX_Flux_UserObject_Main]
    type = FXBoundaryFluxUserObject
    function = FX_Basis_Flux_Main
    variable = m
    boundary = right
    diffusivity = 0.1
  [../]
[]

[Postprocessors]
  [./average_interface_value]
    type = SideAverageValue
    variable = m
    boundary = right
  [../]
  [./total_flux]
    type = SideDiffusiveFluxIntegral
    variable = m
    boundary = right
    diffusivity = 0.1
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 1.0
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = sub.i
    sub_cycling = true
  [../]
[]

[Transfers]
  [./FluxToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Flux_UserObject_Main
    multi_app_object_name = FX_Basis_Flux_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
  [./FluxToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Flux_Main
    multi_app_object_name = FX_Flux_UserObject_Sub
  [../]
[]

(modules/functional_expansion_tools/test/tests/standard_use/volume_coupling_custom_norm.i)

[Mesh]
  type = GeneratedMesh
  dim = 1

  xmin = 0.0
  xmax = 10.0
  nx = 15
[]

[Variables]
  [./m]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./s_in]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff_m]
    type = Diffusion
    variable = m
  [../]
  [./time_diff_m]
    type = TimeDerivative
    variable = m
  [../]
  [./s_in]
    type = CoupledForce
    variable = m
    v = s_in
  [../]
[]

[AuxKernels]
  [./reconstruct_s_in]
    type = FunctionSeriesToAux
    variable = s_in
    function = FX_Basis_Value_Main
  [../]
[]

[ICs]
  [./start_m]
    type = ConstantIC
    variable = m
    value = 1
  [../]
[]

[BCs]
  [./surround]
    type = DirichletBC
    variable = m
    value = 1
    boundary = 'left right'
  [../]
[]

[Functions]
  [./FX_Basis_Value_Main]
    type = FunctionSeries
    series_type = Cartesian
    orders = '3'
    physical_bounds = '0.0  10.0'
    x = Legendre
    generation_type = 'sqrt_mu'
    expansion_type = 'sqrt_mu'
  [../]
[]

[UserObjects]
  [./FX_Value_UserObject_Main]
    type = FXVolumeUserObject
    function = FX_Basis_Value_Main
    variable = m
  [../]
[]

[Postprocessors]
  [./average_value]
    type = ElementAverageValue
    variable = m
  [../]
  [./peak_value]
    type = ElementExtremeValue
    value_type = max
    variable = m
  [../]
  [./picard_iterations]
    type = NumFixedPointIterations
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.5
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_rel_tol = 1e-8
  nl_abs_tol = 1e-9
  fixed_point_rel_tol = 1e-8
  fixed_point_abs_tol = 1e-9
[]

[Outputs]
  exodus = true
  file_base = 'volume_coupled_out'
[]

[MultiApps]
  [./FXTransferApp]
    type = TransientMultiApp
    input_files = volume_coupling_custom_norm_sub.i
  [../]
[]

[Transfers]
  [./ValueToSub]
    type = MultiAppFXTransfer
    to_multi_app = FXTransferApp
    this_app_object_name = FX_Value_UserObject_Main
    multi_app_object_name = FX_Basis_Value_Sub
  [../]
  [./ValueToMe]
    type = MultiAppFXTransfer
    from_multi_app = FXTransferApp
    this_app_object_name = FX_Basis_Value_Main
    multi_app_object_name = FX_Value_UserObject_Sub
  [../]
[]

(modules/porous_flow/test/tests/heat_mass_transfer/variable_transfer_0D.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 1
  ny = 1
[]

[Variables]
  [u]
    initial_condition = 1
  []
[]

[AuxVariables]
  [v]
    initial_condition = 10
  []
[]

[Kernels]
  [u_dot]
    type = TimeDerivative
    variable = u
  []
  [value_transfer]
    type = PorousFlowHeatMassTransfer
    variable = u
    v = v
    transfer_coefficient = 1e-1
  []
[]

[Postprocessors]
  [point_value]
    type = PointValue
    variable = u
    point = '0.5 0.5 0.'
    execute_on = 'initial timestep_end'
  []
[]

[Preconditioning]
  [basic]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  num_steps = 11
  dt = 1
[]


[Outputs]
  csv = true
[]

(test/tests/meshgenerators/file_mesh_generator/2d_diffusion_iga.i)

[Mesh]
  [cyl2d_iga]
    type = FileMeshGenerator
    file = PressurizedCyl_Patch6_4Elem.e
  []
  allow_renumbering = false   # VTK diffs via XMLDiff are
  parallel_type = replicated  # really fragile
[]

[Variables]
  [u]
    order = SECOND  # Must match mesh order
    family = RATIONAL_BERNSTEIN
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
    block = 0  # Avoid direct calculations on spline nodes
  []
  [diff]
    type = Diffusion
    variable = u
    block = 0  # Avoid direct calculations on spline nodes
  []
  [null]
    type = NullKernel
    variable = u
    block = 1  # Keep kernel coverage check happy
  []
[]

[ICs]
  [u]
    type = FunctionIC
    variable = u
    function = 'sin(x)'
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  solve_type = NEWTON
  dtmin = 1
[]

[Outputs]
  vtk = true
[]

(tutorials/tutorial02_multiapps/step02_transfers/01_sub_meshfunction.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 9
  ny = 9
[]

[Variables]
  [v]
  []
[]

[AuxVariables]
  [tu]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = v
  []
  [td]
    type = TimeDerivative
    variable = v
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = v
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = v
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 2
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test7.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 4
    ny = 4
    xmin = 0
    xmax = 4
    ymin = 0
    ymax = 4
  []

  [SubdomainBoundingBox1]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '1 1 1'
  []
  [SubdomainBoundingBox2]
    type = SubdomainBoundingBoxGenerator
    input = SubdomainBoundingBox1
    block_id = 1
    bottom_left = '2 2 0'
    top_right = '3 3 1'
  []
  [ed0]
    type = BlockDeletionGenerator
    block = 1
    input = SubdomainBoundingBox2
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [top]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 1
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 10
  dt = 10

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/phase_field/test/tests/mobility_derivative/mobility_derivative_direct_coupled_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  xmax = 30
  ymax = 30
  elem_type = QUAD4
[]

[Variables]
  [./c]
    family = HERMITE
    order = THIRD
  [../]
  [./d]
  [../]
[]

[ICs]
  [./c_IC]
    type = SmoothCircleIC
    x1 = 15
    y1 = 15
    radius = 12
    variable = c
    int_width = 3
    invalue = 1
    outvalue = 0
  [../]
  [./d_IC]
    type = BoundingBoxIC
    x1 = 0
    x2 = 15
    y1 = 0
    y2 = 30
    inside = 1.0
    outside = 0.0
    variable = d
  [../]
[]

[Kernels]
  [./c_bulk]
    type = CahnHilliard
    variable = c
    mob_name = M
    f_name = F
    coupled_variables = d
  [../]
  [./c_int]
    type = CHInterface
    variable = c
    kappa_name = kappa_c
    mob_name = M
    coupled_variables = d
  [../]
  [./c_dot]
    type = TimeDerivative
    variable = c
  [../]
  [./d_dot]
    type = TimeDerivative
    variable = d
  [../]
  [./d_diff]
    type = MatDiffusion
    variable = d
    diffusivity = diffusivity
  [../]
[]

[Materials]
  [./kappa]
    type = GenericConstantMaterial
    prop_names = kappa_c
    prop_values = 2.0
  [../]
  [./mob]
    type = DerivativeParsedMaterial
    property_name = M
    coupled_variables = 'c d'
    expression = if(d>0.001,d,0.001)*if(c<0,0.5,if(c>1,0.5,1-0.5*c^2))
    derivative_order = 2
  [../]
  [./free_energy]
    type = MathEBFreeEnergy
    property_name = F
    c = c
  [../]
  [./d_diff]
    type = GenericConstantMaterial
    prop_names = diffusivity
    prop_values = 1.0
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = BDF2

  solve_type = NEWTON
  petsc_options_iname = '-pc_type -ksp_gmres_restart -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm         31      lu      1'

  l_max_its = 30
  l_tol = 1.0e-4
  nl_max_its = 50
  nl_rel_tol = 1.0e-10

  dt = 0.25
  num_steps = 2
[]

[Outputs]
  execute_on = 'timestep_end'
  [./oversample]
    refinements = 2
    type = Exodus
  [../]
[]

(test/tests/time_steppers/time_stepper_system/multiple_timesteppers.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[Functions]
  [dts]
    type = PiecewiseLinear
    x = '0   0.85 2'
    y = '0.2 0.15  0.2'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  end_time = 0.8
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  # Use as many different time steppers as we could to test the compositionDT,
  # SolutionTimeAdaptiveDT give slightly different dt per run, set rel_err = 1e-2
  # to ensure the test won't fail due to the small difference in the high-digit.
  [TimeSteppers]
    [ConstDT1]
      type = ConstantDT
      dt = 0.2
    []

    [FunctionDT]
      type = FunctionDT
      function = dts
    []

    [LogConstDT]
      type = LogConstantDT
      log_dt = 0.2
      first_dt = 0.1
    []

    [IterationAdapDT]
      type = IterationAdaptiveDT
      dt = 0.5
    []

    [Timesequence]
      type = TimeSequenceStepper
      time_sequence  = '0  0.25 0.3 0.5 0.8'
    []

    [PPDT]
      type = PostprocessorDT
      postprocessor = PostDT
      dt = 0.1
    []
  []
[]

[Postprocessors]
  [timestep]
    type = TimePostprocessor
    execute_on = 'timestep_end'
  []

  [PostDT]
    type = ElementAverageValue
    variable = u
    execute_on = 'initial timestep_end'
  []
[]

[Outputs]
  csv = true
  file_base='multiple_timesteppers'
[]

(test/tests/actions/add_auxkernel_action/flux_average.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [flux]
    order = CONSTANT
    family = MONOMIAL
    [AuxKernel]
      type = FluxAverageAux
      coupled = u
      diffusivity = 0.1
      boundary = right
    []
  []
[]

[Functions]
  [bc_func]
    type = ParsedFunction
    expression = y+1
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[AuxKernels]
  [flux_average]
    type = FluxAverageAux
    variable = flux
    coupled = u
    diffusivity = 0.1
    boundary = right
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = bc_func
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/transfers/general_field/user_object/duplicated_user_object_tests/restricted_node_parent.i)

num_layers = 2

[Mesh]
  [box]
    type = GeneratedMeshGenerator
    dim = 3
    nx = ${num_layers}
    ny = 3
    nz = 3
    xmin = 0.25
    xmax = 1.25
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [td]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

[AuxVariables]
  [a]
  []

  [s]
  []
[]

[AuxKernels]
  [s_ak]
    type = ParsedAux
    variable = s
    use_xyzt = true
    expression = 'x+(z*z)'
  []
[]

[Functions]
[]

[Postprocessors]
  [a_avg]
    type = ElementAverageValue
    variable = a
  []
[]

[UserObjects]
  [S_avg_front]
    type = LayeredSideAverage
    boundary = front
    variable = s
    num_layers = ${num_layers}
    direction = x
  []

  [S_avg_back]
    type = LayeredSideAverage
    boundary = back
    variable = s
    num_layers = ${num_layers}
    direction = x
  []
[]

[MultiApps]
  [ch0]
    type = TransientMultiApp
    input_files = 'restricted_node_sub.i'
    bounding_box_padding = '0 0.5 1'
    positions = '0 0.5 -0.1'
    output_in_position = true
    cli_args = 'yy=0'
  []
  [ch1]
    type = TransientMultiApp
    input_files = 'restricted_node_sub.i'
    bounding_box_padding = '0 0.5 1'
    positions = '0 0.5  1.1'
    output_in_position = true
    cli_args = 'yy=1'
  []
[]

[Transfers]
  [from_ch0]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_boundaries = back
    from_multi_app = ch0
    variable = a
    source_user_object = A_avg
    fixed_bounding_box_size = '0 1 1.5'
    from_app_must_contain_point = false
  []

  [from_ch1]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_boundaries = front
    from_multi_app = ch1
    variable = a
    source_user_object = A_avg
    fixed_bounding_box_size = '0 1 1.5'
    from_app_must_contain_point = false
  []

  [to_ch0]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_blocks = 20
    to_multi_app = ch0
    variable = S
    source_user_object = S_avg_back
    fixed_bounding_box_size = '1.5 1 1.5'
    from_app_must_contain_point = false
  []

  [to_ch1]
    type = MultiAppGeneralFieldUserObjectTransfer
    to_blocks = 20
    to_multi_app = ch1
    variable = S
    source_user_object = S_avg_front
    fixed_bounding_box_size = '1.5 1 1.5'
    from_app_must_contain_point = false
  []
[]

[Executioner]
  type = Transient
  num_steps = 2

  dt = 1
  nl_abs_tol = 1e-7
[]

[Outputs]
  exodus = true
[]

(test/tests/executioners/aux-ss-detection/simple_transient_diffusion.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [u_copy]
  []
  [large_constant]
    initial_condition = 1000
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[AuxKernels]
  [copy_u_to_v]
    type = CopyValueAux
    variable = u_copy
    source = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  dt = 0.1
  steady_state_detection = true
  check_aux = true
  steady_state_tolerance = 1e-2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/meshgenerators/block_deletion_generator/block_deletion_test2.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 4
    ny = 4
    nz = 1
    xmin = 0
    xmax = 4
    ymin = 0
    ymax = 4
    zmin = 0
    zmax = 1
  []

  [SubdomainBoundingBox]
    type = SubdomainBoundingBoxGenerator
    input = gmg
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '3 3 1'
  []
  [ed0]
    type = BlockDeletionGenerator
    input = SubdomainBoundingBox
    block = 1
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
[]

[BCs]
  [top]
    type = DirichletBC
    variable = u
    boundary = bottom
    value = 1
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 10
  dt = 10

  solve_type = NEWTON

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(test/tests/outputs/iterative/iterative_inline.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 20
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  [./out]
    type = Exodus
    nonlinear_residual_dt_divisor = 100
    linear_residual_dt_divisor = 100
    nonlinear_residual_start_time = 1.8
    linear_residual_start_time = 1.8
    nonlinear_residual_end_time = 1.85
    linear_residual_end_time = 1.85
  [../]
[]

(test/tests/transfers/multiapp_userobject_transfer/two_pipe_parent.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 3
    xmin = 0
    xmax = 5
    nx = 5

    ymin = 0
    ymax = 5
    ny = 5

    zmin = 0
    zmax = 5
    nz = 5
  []
  [./blocks]
    input = gen
    type = SubdomainBoundingBoxGenerator
    block_id = 1
    bottom_left = '1 1 0'
    top_right = '4 4 5'
  [../]
[]

[AuxVariables]
  [./from_sub_app_var]
    order = CONSTANT
    family = MONOMIAL
    block = 1
    initial_condition = 0
  [../]
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = front
    value = -1
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = back
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 5

  solve_type = 'NEWTON'
  l_tol = 1e-8
  nl_rel_tol = 1e-10
[]

[Outputs]
  exodus = true
  execute_on = final
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    positions = '0 0 0'
    input_files = two_pipe_sub.i
    app_type = MooseTestApp
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [layered_transfer_from_sub_app]
    type = MultiAppUserObjectTransfer
    user_object = sub_app_uo
    variable = from_sub_app_var
    from_multi_app = sub_app
    displaced_source_mesh = true
    skip_bounding_box_check = true
  []
[]

(test/tests/outputs/vtk/vtk_diff_serial_mesh_parallel.i)

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 2
    ny = 2
  []

  # We found that the Metis partitioner sometimes partitioned this 2x2
  # mesh differently on Mac vs. Linux?
  partitioner = centroid
  centroid_partitioner_direction = x
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./aux]
    family = MONOMIAL
    order = CONSTANT
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  vtk = true
[]

(test/tests/time_steppers/zero_dt/test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  dt = 0
[]

(test/tests/vectorpostprocessors/element_variables_difference_max/element_variables_difference_max.i)

[Mesh]
  type = GeneratedMesh
  dim = 3
  nx = 10
  ny = 10
  nz = 10
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Functions]
  [./forcing_v]
    type = ParsedFunction
    expression = 'x * y * z'
  [../]
[]

[Kernels]
  [./diffusion_u]
    type = Diffusion
    variable = u
  [../]
  [./time_u]
    type = TimeDerivative
    variable = u
  [../]

  [./diffusion_v]
    type = Diffusion
    variable = v
  [../]
  [./forcing_v]
    type = BodyForce
    variable = v
    function = forcing_v
  [../]
  [./time_v]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  [./bottom]
    type = DirichletBC
    variable = 'u'
    boundary = 'bottom'
    value = 1
  [../]

  [./top]
    type = DirichletBC
    variable = 'u'
    boundary = 'top'
    value = 0
  [../]
[]

[VectorPostprocessors]
  [./difference]
    type = ElementVariablesDifferenceMax
    compare_a = u
    compare_b = v
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 1
  solve_type = PJFNK
[]

[Outputs]
  execute_on = 'initial timestep_end'
  csv = true
[]

(modules/porous_flow/test/tests/jacobian/esbc02.i)

# Tests the Jacobian of PorousFlowEnthalpySink when pressure

[Mesh]
  type = GeneratedMesh
  dim = 2
[]

[GlobalParams]
  PorousFlowDictator = dictator
  at_nodes = true
[]

[UserObjects]
  [dictator]
    type = PorousFlowDictator
    porous_flow_vars = 'pp temp'
    number_fluid_phases = 1
    number_fluid_components = 1
  []
  [pc]
    type = PorousFlowCapillaryPressureConst
    pc = 0.1
  []
[]

[Variables]
  [pp]
    initial_condition = 1
  []
  [temp]
    initial_condition = 2
  []
[]

[AuxVariables]
  [pressure]
  []
[]

[Kernels]
  [mass0]
    type = TimeDerivative
    variable = pp
  []

  [heat_conduction]
    type = TimeDerivative
    variable = temp
  []
[]

[FluidProperties]
  [simple_fluid]
    type = IdealGasFluidProperties
  []
[]

[Materials]
  [ppss]
    type = PorousFlow1PhaseFullySaturated
    porepressure = pp
  []
  [simple_fluid]
    type = PorousFlowSingleComponentFluid
    fp = simple_fluid
    phase = 0
  []

  [temperature]
    type = PorousFlowTemperature
    temperature = temp
  []
[]

[BCs]
  [left]
    type = PorousFlowEnthalpySink
    variable = temp
    boundary = left
    porepressure_var = pressure
    T_in = 300
    fp = simple_fluid
    flux_function = -23
  []
[]

[Preconditioning]
  [andy]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = Newton
  dt = 0.1
  num_steps = 1
  nl_rel_tol = 1E-12
  nl_abs_tol = 1E-12

  petsc_options_iname = '-snes_test_err'
  petsc_options_value = '1e-1'
[]

(modules/porous_flow/examples/multiapp_fracture_flow/diffusion_multiapp/fracture_app_heat.i)

# Heat energy from this fracture app is transferred to the matrix app
[Mesh]
  [generate]
    type = GeneratedMeshGenerator
    dim = 1
    nx = 100
    xmin = 0
    xmax = 50.0
  []
[]

[Variables]
  [frac_T]
  []
[]

[ICs]
  [frac_T]
    type = FunctionIC
    variable = frac_T
    function = 'if(x<1E-6, 2, 0)'  # delta function
  []
[]

[AuxVariables]
  [transferred_matrix_T]
  []
  [heat_to_matrix]
  []
[]

[Kernels]
  [dot]
    type = TimeDerivative
    variable = frac_T
  []
  [fracture_diffusion]
    type = Diffusion
    variable = frac_T
  []
  [toMatrix]
    type = PorousFlowHeatMassTransfer
    variable = frac_T
    v = transferred_matrix_T
    transfer_coefficient = 0.004
  []
[]

[AuxKernels]
  [heat_to_matrix]
    type = ParsedAux
    variable = heat_to_matrix
    coupled_variables = 'frac_T transferred_matrix_T'
    expression = '0.004 * (frac_T - transferred_matrix_T)'
  []
[]

[Preconditioning]
  [entire_jacobian]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  solve_type = NEWTON
  dt = 100
  end_time = 100
[]

[VectorPostprocessors]
  [final_results]
    type = LineValueSampler
    start_point = '0 0 0'
    end_point = '50 0 0'
    num_points = 11
    sort_by = x
    variable = frac_T
    outputs = final_csv
  []
[]

[Outputs]
  print_linear_residuals = false
  [final_csv]
    type = CSV
    sync_times = 100
    sync_only = true
  []
[]

[MultiApps]
  [matrix_app]
    type = TransientMultiApp
    input_files = matrix_app_heat.i
    execute_on = TIMESTEP_END
  []
[]

[Transfers]
  [heat_to_matrix]
    type = MultiAppCopyTransfer
    to_multi_app = matrix_app
    source_variable = heat_to_matrix
    variable = heat_from_frac
  []
  [T_from_matrix]
    type = MultiAppCopyTransfer
    from_multi_app = matrix_app
    source_variable = matrix_T
    variable = transferred_matrix_T
  []
[]

(modules/stochastic_tools/test/tests/transfers/sampler_transfer/errors/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [time]
    type = TimeDerivative
    variable = u
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.01
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Controls]
  [stochastic]
    type = SamplerReceiver
  []
[]

(test/tests/multiapps/transient_multiapp/dt_from_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub_app]
    type = TransientMultiApp
    app_type = MooseTestApp
    input_files = 'dt_from_parent_sub.i'
    positions = '0   0   0
                 0.5 0.5 0
                 0.6 0.6 0
                 0.7 0.7 0'
  []
[]

(test/tests/postprocessors/element_time_derivative/el_time_deriv_1d_test.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = -5
  xmax = 5
  ymin = -1
  nx = 5
  elem_type = EDGE
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
    [./InitialCondition]
      type = ConstantIC
      value = 0
    [../]
  [../]
[]

[Functions]
  [./forcing_fn]
    type = ParsedFunction
    expression = t*x+1
  [../]
[]

[Kernels]
  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
  [./diffusion]
    type = Diffusion
    variable = u
  [../]
  [./timeDer]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./all]
    type = DirichletBC
    variable = u
    boundary = '0 1'
    value = 0
  [../]
[]

[Postprocessors]
  [./elementAvgTimeDerivative]
    type = ElementAverageTimeDerivative
    variable = u
  [../]
  [./elementAvgValue]
    type = ElementAverageValue
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  scheme = implicit-euler

  solve_type = 'PJFNK'

  start_time = 0.0
  num_steps = 5
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_el_time_deriv_1d
  csv = true
[]

(test/tests/nodalkernels/constraint_enforcement/lower-bound.i)

l=10
nx=100
num_steps=10

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = ${l}
  nx = ${nx}
[]

[Variables]
  [u]
  []
  [lm]
  []
[]

[ICs]
  [u]
    type = FunctionIC
    variable = u
    function = '${l} - x'
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [ffn]
    type = BodyForce
    variable = u
    function = '-1'
  []
[]

[NodalKernels]
  [positive_constraint]
    type = LowerBoundNodalKernel
    variable = lm
    v = u
    exclude_boundaries = 'left right'
  []
  [forces]
    type = CoupledForceNodalKernel
    variable = u
    v = lm
  []
[]


[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = ${l}
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = 0
    variable = u
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  num_steps = ${num_steps}
  solve_type = NEWTON
  dtmin = 1
  petsc_options_iname = '-snes_max_linear_solve_fail -ksp_max_it -pc_type -sub_pc_factor_levels -snes_linesearch_type'
  petsc_options_value = '0                           30          asm      16                    basic'
[]

[Outputs]
  exodus = true
  [csv]
    type = CSV
    execute_on = 'nonlinear timestep_end'
  []
  [dof]
    type = DOFMap
    execute_on = 'initial'
  []
[]

[Debug]
  show_var_residual_norms = true
[]

[Postprocessors]
  [active_lm]
    type = GreaterThanLessThanPostprocessor
    variable = lm
    execute_on = 'nonlinear timestep_end'
    value = 1e-8
  []
  [violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = -1e-8
    comparator = 'less'
  []
[]

(modules/phase_field/test/tests/free_energy_material/CoupledValueFunctionFreeEnergy.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  nz = 0
  xmin = 0
  xmax = 500
  ymin = 0
  ymax = 500
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[GlobalParams]
  op_num = 4
  var_name_base = gr
[]

[Variables]
  [PolycrystalVariables]
  []
[]

[Functions]
  [grain_growth_energy]
    type = PiecewiseMultilinear
    data_file = grain_growth_energy.data
  []
  [grain_growth_mu0]
    type = PiecewiseMultilinear
    data_file = grain_growth_mu0.data
  []
  [grain_growth_mu1]
    type = PiecewiseMultilinear
    data_file = grain_growth_mu1.data
  []
  [grain_growth_mu2]
    type = PiecewiseMultilinear
    data_file = grain_growth_mu2.data
  []
  [grain_growth_mu3]
    type = PiecewiseMultilinear
    data_file = grain_growth_mu3.data
  []

  [matrix]
    type = ParsedFunction
    expression = '1-x-y-z'
  []
[]

[ICs]
  [gr1]
    type = SmoothCircleIC
    variable = gr1
    x1 = 0
    y1 = 0
    radius = 150
    int_width = 90
    invalue = 1
    outvalue = 0
  []
  [gr2]
    type = SmoothCircleIC
    variable = gr2
    x1 = 500
    y1 = 0
    radius = 120
    int_width = 90
    invalue = 1
    outvalue = 0
  []
  [gr3]
    type = SmoothCircleIC
    variable = gr3
    x1 = 250
    y1 = 500
    radius = 300
    int_width = 90
    invalue = 1
    outvalue = 0
  []
  [gr0]
    type = CoupledValueFunctionIC
    variable = gr0
    v = 'gr1 gr2 gr3'
    function = matrix
  []
[]

[AuxVariables]
  [bnds]
    order = FIRST
    family = LAGRANGE
  []
  [local_energy]
    order = CONSTANT
    family = MONOMIAL
  []
[]

[Kernels]
  [gr0dot]
    type = TimeDerivative
    variable = gr0
  []
  [gr0bulk]
    type = AllenCahn
    variable = gr0
    f_name = F
    coupled_variables = 'gr1 gr2 gr3'
  []
  [gr0int]
    type = ACInterface
    variable = gr0
    kappa_name = kappa_op
  []

  [gr1dot]
    type = TimeDerivative
    variable = gr1
  []
  [gr1bulk]
    type = AllenCahn
    variable = gr1
    f_name = F
    coupled_variables = 'gr0 gr2 gr3'
  []
  [gr1int]
    type = ACInterface
    variable = gr1
    kappa_name = kappa_op
  []

  [gr2dot]
    type = TimeDerivative
    variable = gr2
  []
  [gr2bulk]
    type = AllenCahn
    variable = gr2
    f_name = F
    coupled_variables = 'gr0 gr1 gr3'
  []
  [gr2int]
    type = ACInterface
    variable = gr2
    kappa_name = kappa_op
  []

  [gr3dot]
    type = TimeDerivative
    variable = gr3
  []
  [gr3bulk]
    type = AllenCahn
    variable = gr3
    f_name = F
    coupled_variables = 'gr0 gr1 gr2'
  []
  [gr3int]
    type = ACInterface
    variable = gr3
    kappa_name = kappa_op
  []
[]

[AuxKernels]
  [BndsCalc]
    type = BndsCalcAux
    variable = bnds
  []
  [local_free_energy]
    type = TotalFreeEnergy
    variable = local_energy
    kappa_names = 'kappa_op kappa_op kappa_op kappa_op'
    interfacial_vars = 'gr0 gr1 gr2 gr3'
  []
[]

[Materials]
  [Copper]
    type = GBEvolution
    T = 500 # K
    wGB = 60 # nm
    GBmob0 = 2.5e-6 # m^4/(Js) from Schoenfelder 1997
    Q = 0.23 # Migration energy in eV
    GBenergy = 0.708 # GB energy in J/m^2
  []
  [Tabulated]
    type = CoupledValueFunctionFreeEnergy
    free_energy_function = grain_growth_energy
    chemical_potential_functions = 'grain_growth_mu0 grain_growth_mu1 grain_growth_mu2 '
                                   'grain_growth_mu3'
    v = 'gr0 gr1 gr2 gr3'
  []
[]

[Postprocessors]
  [total_energy]
    type = ElementIntegralVariablePostprocessor
    variable = local_energy
  []
[]

[Preconditioning]
  [SMP]
    type = SMP
    coupled_groups = 'gr0,gr1 gr0,gr2 gr0,gr3'
  []
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = NEWTON
  l_tol = 1.0e-4
  l_max_its = 30
  nl_max_its = 30
  nl_rel_tol = 1.0e-9
  start_time = 0.0
  num_steps = 3
  dt = 100.0
[]

[Outputs]
  exodus = true
  print_linear_residuals = false
  perf_graph = true
[]

(modules/richards/test/tests/darcy/pp.i)

# investigating pressure pulse in 1D
# transient

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 10
  xmin = 0
  xmax = 100
[]

[GlobalParams]
  variable = pressure
  fluid_weight = '0 0 0'
  fluid_viscosity = 1E-3
[]


[Variables]
  [./pressure]
    order = FIRST
    family = LAGRANGE
    initial_condition = 2E6
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    boundary = left
    value = 3E6
  [../]
[]

[Kernels]
  [./time_deriv]
    type = TimeDerivative
  [../]
  [./darcy]
    type = DarcyFlux
  [../]
[]

[AuxVariables]
  [./f_0]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./f_0]
    type = DarcyFluxComponent
    component = x
    variable = f_0
    porepressure = pressure
  [../]
[]

[Materials]
  [./solid]
    type = DarcyMaterial
    block = 0
    mat_permeability = '2E-5 0 0  0 2E-5 0  0 0 2E-5' # this is the permeability (1E-15) multiplied by the bulk modulus (2E9) divided by the porosity (0.1)
  [../]
[]


[Preconditioning]
  [./andy]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  solve_type = Newton
  petsc_options_iname = '-ksp_type -pc_type'
  petsc_options_value = 'bcgs bjacobi'
  dt = 1E3
  end_time = 1E4
[]

[Outputs]
  file_base = pp
  execute_on = 'timestep_end final'
  time_step_interval = 10000
  exodus = true
[]

(test/tests/multiapps/restart_subapp_ic/sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmin = 0
  xmax = 1
  nx = 10
[]

[Functions]
  [u_fn]
    type = ParsedFunction
    expression = t*x
  []
  [ffn]
    type = ParsedFunction
    expression = x
  []
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    type = TimeDerivative
    variable = u
  []
  [fn]
    type = BodyForce
    variable = u
    function = ffn
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [right]
    type = FunctionDirichletBC
    variable = u
    boundary = right
    function = u_fn
  []
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = 'PJFNK'
[]

[Outputs]
  exodus = true
[]

(test/tests/userobjects/force_aux_ordering/force_postaux.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = 0
  xmax = 1
  nx = 5
  ymin = 0
  ymax = 1
  ny = 5

  allow_renumbering = false
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
    initial_condition = 1
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []

  [diff]
    type = Diffusion
    variable = u
  []
[]

# spatial_uo_1/2 are executed preaux by default because spatial_uo_aux1/2 depend on them
# We force 1 to be executed postaux, so the auxkernel will use the old value, and the
# corresponding post processor, value2, will get an old value as well
[UserObjects]
  [spatial_uo_1]
    type = LayeredSideAverage
    variable = u
    direction = y
    num_layers = 3
    boundary = 'left'
    force_postaux = true
  []
  [spatial_uo_2]
    type = LayeredSideAverage
    variable = u
    direction = y
    num_layers = 3
    boundary = 'left'
  []
[]

[AuxVariables]
  [v1]
  []
  [v2]
  []
[]

[AuxKernels]
  [spatial_uo_aux_1]
     type = SpatialUserObjectAux
     variable = v1
     user_object = 'spatial_uo_1'
  []
  [spatial_uo_aux_2]
     type = SpatialUserObjectAux
     variable = v2
     user_object = 'spatial_uo_2'
  []
[]

[Postprocessors]

  [value1]
    type = NodalVariableValue
    variable = v1
    nodeid = 3
    force_preaux = true
  []
  [value2]
    type = NodalVariableValue
    variable = v2
    nodeid = 3
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  []
[]

[Executioner]
  type = Transient
  dt = 1.0
  end_time = 2.0
[]

[Outputs]
  csv = true
[]

(test/tests/parser/cli_multiapp_group/dt_from_parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.2

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

[MultiApps]
  [./sub_left]
    positions = '0 0 0  0.5 0.5 0  0.6 0.6 0  0.7 0.7 0'
    type = TransientMultiApp
    input_files = 'dt_from_parent_sub.i'
    app_type = MooseTestApp
  [../]

  [./sub_right]
    positions = '0 0 0  0.5 0.5 0  0.6 0.6 0  0.7 0.7 0'
    type = TransientMultiApp
    input_files = 'dt_from_parent_sub.i'
    app_type = MooseTestApp
  [../]
[]

(test/tests/variables/block_aux_kernel/block_aux_kernel_test.i)

###########################################################
# This is a simple test of the AuxVariable System.
# A single discretized explicit variable is added to the
# system which is independent of the nonlinear variables
# being solved for by the solver.
#
# @Requirement F5.10
###########################################################


[Mesh]
  file = gap_test.e
  # This test uses the geometric search system, which does not currently work
  # in parallel with DistributedMesh enabled.  For more information, see #2121.
  parallel_type = replicated
[]

[Variables]
  active = 'u'

  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  [./distance]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_x]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_y]
    order = FIRST
    family = LAGRANGE
  [../]

  [./disp_z]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  active = 'diff u_time'

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./u_time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./x]
    type = FunctionAux
    variable = disp_x
    function = 0
    block = 1
  [../]

  [./y]
    type = FunctionAux
    variable = disp_y
    function = 0
    block = 1
  [../]

  [./z]
    type = FunctionAux
    variable = disp_z
    function = t
    block = 1
  [../]
  [./gap_distance]
    type = NearestNodeDistanceAux
    variable = distance
    boundary = 2
    paired_boundary = 3
  [../]

  [./gap_distance2]
    type = NearestNodeDistanceAux
    variable = distance
    boundary = 3
    paired_boundary = 2
  [../]
[]

[BCs]
  active = 'block1_left block1_right block2_left block2_right'

  [./block1_left]
    type = DirichletBC
    variable = u
    boundary = 1
    value = 0
  [../]

  [./block1_right]
    type = DirichletBC
    variable = u
    boundary = 2
    value = 1
  [../]

  [./block2_left]
    type = DirichletBC
    variable = u
    boundary = 3
    value = 0
  [../]

  [./block2_right]
    type = DirichletBC
    variable = u
    boundary = 4
    value = 1
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 1.0
  num_steps = 8
[]

[Outputs]
  file_base = out
  exodus = true
[]

(test/tests/multiapps/positions_from_file/dt_from_multi_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

 [Outputs]
  exodus = true
[]

(python/peacock/tests/input_tab/InputTree/gold/transient.i)

# ##########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of a "Transient" Executioner.
#
# @Requirement F1.10
# ##########################################################
[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax = 1
  ymin = -1
  ymax = 1
  nx = 10
  ny = 10
  elem_type = QUAD4
[]

[Variables]
  [u]
    order = FIRST
    family = LAGRANGE
    [InitialCondition]
      type = ConstantIC
      value = 0
    []
  []
[]

[Functions]
  [forcing_fn]
    # dudt = 3*t^2*(x^2 + y^2)
    type = ParsedFunction
    expression = '3*t*t*((x*x)+(y*y))-(4*t*t*t)'
  []
  [exact_fn]
    type = ParsedFunction
    expression = 't*t*t*((x*x)+(y*y))'
  []
[]

[Kernels]
  [ie]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  []
[]

[BCs]
  inactive = 'left right'
  [all]
    type = FunctionDirichletBC
    variable = u
    boundary = '0 1 2 3'
    function = exact_fn
  []
  [left]
    type = DirichletBC
    variable = u
    boundary = '3'
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    boundary = '1'
    value = 1
  []
[]

[Postprocessors]
  [l2_err]
    type = ElementL2Error
    variable = 'u'
    function = exact_fn
  []
  [dt]
    type = TimestepSize
  []
[]

[Executioner]
  # Preconditioned JFNK (default)
  type = Transient
  scheme = implicit-euler
  solve_type = PJFNK
  start_time = 0.0
  num_steps = 5
  dt = 0.1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_transient
  exodus = true
[]

(test/tests/multiapps/reset/multilevel_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.01

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_end
    positions = '1 1 0'
    input_files = multilevel_sub_sub.i
    output_in_position = true
  [../]
[]

(test/tests/bcs/periodic/parallel_pbc_using_trans.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 15
  ny = 15
  nz = 0
  xmax = 10
  ymax = 10
  zmin = 0
  zmax = 0
  elem_type = QUAD4
[]

[Functions]
  [./tr_x]
    type = ParsedFunction
    expression = x
  [../]
  [./tr_y]
    type = ParsedFunction
    expression = y+10
  [../]
  [./itr_x]
    type = ParsedFunction
    expression = x
  [../]
  [./itr_y]
    type = ParsedFunction
    expression = y-10
  [../]
[]

[Variables]
  [./u]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./forcing]
    type = GaussContForcing
    variable = u
    y_center = 1
    x_spread = 0.25
    y_spread = 0.5
  [../]
  [./dot]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./Periodic]
    [./x]
      primary = bottom
      secondary = top
      transform_func = 'tr_x tr_y'
      inv_transform_func = 'itr_x itr_y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  dt = 0.5
  num_steps = 10
[]

[Outputs]
  execute_on = 'timestep_end'
  exodus = true
[]

(test/tests/restart/restart_transient_from_transient/restart_trans_with_2subs.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
  parallel_type = 'replicated'
[]

[Problem]
  restart_file_base = pseudo_trans_with_2subs_out_cp/LATEST
[]

[AuxVariables]
  [Tf]
  []
[]

[Variables]
  [power_density]
  []
[]

[Functions]
  [pwr_func]
    type = ParsedFunction
    expression = '1e3*x*(1-x)+5e2' # increase this function to drive transient
  []
[]

[Kernels]
  [timedt]
    type = TimeDerivative
    variable = power_density
  []

  [diff]
    type = Diffusion
    variable = power_density
  []

  [coupledforce]
    type = BodyForce
    variable = power_density
    function = pwr_func
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = power_density
    boundary = left
    value = 50
  []
  [right]
    type = DirichletBC
    variable = power_density
    boundary = right
    value = 1e3
  []
[]

[Postprocessors]
  [pwr_avg]
    type = ElementAverageValue
    block = '0'
    variable = power_density
    execute_on = 'initial timestep_end'
  []
  [temp_avg]
    type = ElementAverageValue
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [temp_max]
    type = ElementExtremeValue
    value_type = max
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
  [temp_min]
    type = ElementExtremeValue
    value_type = min
    variable = Tf
    block = '0'
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  start_time = 0
  end_time = 3
  dt = 1.0

  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart '
  petsc_options_value = 'hypre boomeramg 100'

  nl_abs_tol = 1e-8
  nl_rel_tol = 1e-12

  line_search = none
[]

[MultiApps]
  [./sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0   0 0
                 0.5 0 0'
    input_files  = restart_trans_with_2subs_sub.i
    execute_on = 'timestep_end'
  [../]
[]

[Transfers]
  [p_to_sub]
    type = MultiAppProjectionTransfer
    source_variable = power_density
    variable = power_density
    to_multi_app = sub
    execute_on = 'timestep_end'
  []
  [t_from_sub]
    type = MultiAppGeometricInterpolationTransfer
    source_variable = temp
    variable = Tf
    from_multi_app = sub
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  exodus = true
  perf_graph = true
[]

(modules/combined/examples/publications/rapid_dev/fig8.i)

#
# Fig. 8 input for 10.1016/j.commatsci.2017.02.017
# D. Schwen et al./Computational Materials Science 132 (2017) 36-45
# Two growing particles with differnet anisotropic Eigenstrains
#

[Mesh]
  [./gen]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 80
    ny = 40
    xmin = -20
    xmax = 20
    ymin = 0
    ymax = 20
    elem_type = QUAD4
  [../]
  [./cnode]
    type = ExtraNodesetGenerator
    input = gen
    coord = '0.0 0.0'
    new_boundary = 100
    tolerance = 0.1
  [../]
[]

[GlobalParams]
  # CahnHilliard needs the third derivatives
  derivative_order = 3
  enable_jit = true
  displacements = 'disp_x disp_y'
  int_width = 1
[]

# AuxVars to compute the free energy density for outputting
[AuxVariables]
  [./local_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./cross_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./local_free_energy]
    type = TotalFreeEnergy
    variable = local_energy
    interfacial_vars = 'c'
    kappa_names = 'kappa_c'
    additional_free_energy = cross_energy
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
  [./cross_terms]
    type = CrossTermGradientFreeEnergy
    variable = cross_energy
    interfacial_vars = 'eta1 eta2 eta3'
    kappa_names = 'kappa11 kappa12 kappa13
                   kappa21 kappa22 kappa23
                   kappa31 kappa32 kappa33'
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
[]

# particle x positions and radius
P1X=8
P2X=-4
PR=2

[Variables]
  # Solute concentration variable
  [./c]
    [./InitialCondition]
      type = SpecifiedSmoothCircleIC
      x_positions = '${P1X} ${P2X}'
      y_positions = '0 0'
      z_positions = '0 0'
      radii = '${PR} ${PR}'
      outvalue = 0.5
      invalue = 0.9
    [../]
  [../]
  [./w]
  [../]

  # Order parameter for the Matrix
  [./eta1]
    [./InitialCondition]
      type = SpecifiedSmoothCircleIC
      x_positions = '${P1X} ${P2X}'
      y_positions = '0 0'
      z_positions = '0 0'
      radii = '${PR} ${PR}'
      outvalue = 1.0
      invalue = 0.0
    [../]
  [../]
  # Order parameters for the 2 different inclusion orientations
  [./eta2]
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = ${P2X}
      y1 = 0
      radius = ${PR}
      invalue = 1.0
      outvalue = 0.0
    [../]
  [../]
  [./eta3]
    [./InitialCondition]
      type = SmoothCircleIC
      x1 = ${P1X}
      y1 = 0
      radius = ${PR}
      invalue = 1.0
      outvalue = 0.0
    [../]
  [../]

  # Lagrange-multiplier
  [./lambda]
    initial_condition = 1.0
  [../]
[]

[Physics/SolidMechanics/QuasiStatic/all]
  add_variables = true
  strain = SMALL
  eigenstrain_names = eigenstrain
[]

[Kernels]
  # Split Cahn-Hilliard kernels
  [./c_res]
    type = SplitCHParsed
    variable = c
    f_name = F
    args = 'eta1 eta2 eta3'
    kappa_name = kappa_c
    w = w
  [../]
  [./wres]
    type = SplitCHWRes
    variable = w
    mob_name = M
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]

  # Allen-Cahn and Lagrange-multiplier constraint kernels for order parameter 1
  [./deta1dt]
    type = TimeDerivative
    variable = eta1
  [../]
  [./ACBulk1]
    type = AllenCahn
    variable = eta1
    args = 'eta2 eta3 c'
    mob_name = L1
    f_name = F
  [../]
  [./ACInterface1]
    type = ACMultiInterface
    variable = eta1
    etas = 'eta1 eta2 eta3'
    mob_name = L1
    kappa_names = 'kappa11 kappa12 kappa13'
  [../]
  [./lagrange1]
    type = SwitchingFunctionConstraintEta
    variable = eta1
    h_name   = h1
    lambda = lambda
  [../]

  # Allen-Cahn and Lagrange-multiplier constraint kernels for order parameter 2
  [./deta2dt]
    type = TimeDerivative
    variable = eta2
  [../]
  [./ACBulk2]
    type = AllenCahn
    variable = eta2
    args = 'eta1 eta3 c'
    mob_name = L2
    f_name = F
  [../]
  [./ACInterface2]
    type = ACMultiInterface
    variable = eta2
    etas = 'eta1 eta2 eta3'
    mob_name = L2
    kappa_names = 'kappa21 kappa22 kappa23'
  [../]
  [./lagrange2]
    type = SwitchingFunctionConstraintEta
    variable = eta2
    h_name   = h2
    lambda = lambda
  [../]

  # Allen-Cahn and Lagrange-multiplier constraint kernels for order parameter 3
  [./deta3dt]
    type = TimeDerivative
    variable = eta3
  [../]
  [./ACBulk3]
    type = AllenCahn
    variable = eta3
    args = 'eta1 eta2 c'
    mob_name = L3
    f_name = F
  [../]
  [./ACInterface3]
    type = ACMultiInterface
    variable = eta3
    etas = 'eta1 eta2 eta3'
    mob_name = L3
    kappa_names = 'kappa31 kappa32 kappa33'
  [../]
  [./lagrange3]
    type = SwitchingFunctionConstraintEta
    variable = eta3
    h_name   = h3
    lambda = lambda
  [../]

  # Lagrange-multiplier constraint kernel for lambda
  [./lagrange]
    type = SwitchingFunctionConstraintLagrange
    variable = lambda
    etas    = 'eta1 eta2 eta3'
    h_names = 'h1   h2   h3'
    epsilon = 1e-6
  [../]
[]

[Materials]
  # declare a few constants, such as mobilities (L,M) and interface gradient prefactors (kappa*)
  [./consts]
    type = GenericConstantMaterial
    block = 0
    prop_names  = 'M   kappa_c  L1 L2 L3  kappa11 kappa12 kappa13 kappa21 kappa22 kappa23 kappa31 kappa32 kappa33'
    prop_values = '0.2 0.5      1  1  1   2.00    2.00    2.00    2.00    2.00    2.00    2.00    2.00    2.00   '
  [../]

  # We use this to output the level of constraint enforcement
  # ideally it should be 0 everywhere, if the constraint is fully enforced
  [./etasummat]
    type = ParsedMaterial
    property_name = etasum
    coupled_variables = 'eta1 eta2 eta3'
    material_property_names = 'h1 h2 h3'
    expression = 'h1+h2+h3-1'
    outputs = exodus
  [../]

  # This parsed material creates a single property for visualization purposes.
  # It will be 0 for phase 1, -1 for phase 2, and 1 for phase 3
  [./phasemap]
    type = ParsedMaterial
    property_name = phase
    coupled_variables = 'eta2 eta3'
    expression = 'if(eta3>0.5,1,0)-if(eta2>0.5,1,0)'
    outputs = exodus
  [../]

  # global mechanical properties
  [./elasticity_tensor]
    type = ComputeElasticityTensor
    C_ijkl = '400 400'
    fill_method = symmetric_isotropic
  [../]
  [./stress]
    type = ComputeLinearElasticStress
  [../]

  # eigenstrain
  [./eigenstrain_2]
    type = GenericConstantRankTwoTensor
    tensor_name = s2
    tensor_values = '0 -0.05 0  0 0 0'
  [../]
  [./eigenstrain_3]
    type = GenericConstantRankTwoTensor
    tensor_name = s3
    tensor_values =  '-0.05 0 0  0 0 0'
  [../]
  [./eigenstrain]
    type = CompositeEigenstrain
    weights = 'h2 h3'
    tensors = 's2 s3'
    args = 'eta2 eta3'
    eigenstrain_name = eigenstrain
  [../]

  # switching functions
  [./switching1]
    type = SwitchingFunctionMaterial
    function_name = h1
    eta = eta1
    h_order = SIMPLE
  [../]
  [./switching2]
    type = SwitchingFunctionMaterial
    function_name = h2
    eta = eta2
    h_order = SIMPLE
  [../]
  [./switching3]
    type = SwitchingFunctionMaterial
    function_name = h3
    eta = eta3
    h_order = SIMPLE
  [../]

  [./barrier]
    type = MultiBarrierFunctionMaterial
    etas = 'eta1 eta2 eta3'
  [../]

  # chemical free energies
  [./chemical_free_energy_1]
    type = DerivativeParsedMaterial
    property_name = Fc1
    expression = '4*c^2'
    coupled_variables = 'c'
    derivative_order = 2
  [../]
  [./chemical_free_energy_2]
    type = DerivativeParsedMaterial
    property_name = Fc2
    expression = '(c-0.9)^2-0.4'
    coupled_variables = 'c'
    derivative_order = 2
  [../]
  [./chemical_free_energy_3]
    type = DerivativeParsedMaterial
    property_name = Fc3
    expression = '(c-0.9)^2-0.5'
    coupled_variables = 'c'
    derivative_order = 2
  [../]

  # global chemical free energy
  [./chemical_free_energy]
    type = DerivativeMultiPhaseMaterial
    f_name = Fc
    fi_names = 'Fc1  Fc2  Fc3'
    hi_names = 'h1  h2  h3'
    etas     = 'eta1 eta2 eta3'
    coupled_variables = 'c'
    W = 3
  [../]

  # global elastic free energy
  [./elastic_free_energy]
    type = ElasticEnergyMaterial
    f_name = Fe
    args = 'eta2 eta3'
    outputs = exodus
    output_properties = Fe
    derivative_order = 2
  [../]

  # Penalize phase 2 and 3 coexistence
  [./multi_phase_penalty]
    type = DerivativeParsedMaterial
    property_name = Fp
    expression = '50*(eta2*eta3)^2'
    coupled_variables = 'eta2 eta3'
    derivative_order = 2
    outputs = exodus
    output_properties = Fp
  [../]

  # free energy
  [./free_energy]
    type = DerivativeSumMaterial
    property_name = F
    sum_materials = 'Fc Fe Fp'
    coupled_variables = 'c eta1 eta2 eta3'
    derivative_order = 2
  [../]
[]

[BCs]
  # fix center point location
  [./centerfix_x]
    type = DirichletBC
    boundary = 100
    variable = disp_x
    value = 0
  [../]

  # fix side point x coordinate to inhibit rotation
  [./angularfix]
    type = DirichletBC
    boundary = bottom
    variable = disp_y
    value = 0
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

# We monitor the total free energy and the total solute concentration (should be constant)
[Postprocessors]
  [./total_free_energy]
    type = ElementIntegralVariablePostprocessor
    variable = local_energy
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
  [./total_solute]
    type = ElementIntegralVariablePostprocessor
    variable = c
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -sub_pc_type'
  petsc_options_value = 'asm      lu'

  l_max_its = 30
  nl_max_its = 10
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1.0e-10
  start_time = 0.0
  end_time = 12.0

  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 8
    iteration_window = 1
    dt = 0.01
  [../]
[]

[Outputs]
  print_linear_residuals = false
  execute_on = 'INITIAL TIMESTEP_END'
  exodus = true
  [./table]
    type = CSV
    delimiter = ' '
  [../]
[]

[Debug]
  # show_var_residual_norms = true
[]

(test/tests/multiapps/initial_failure/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 4
  dt = 0.1
[]

[MultiApps]
  [./sub]
    type = FullSolveMultiApp
    execute_on = initial
    input_files = sub.i
  [../]
[]

(modules/phase_field/examples/anisotropic_interfaces/GrandPotentialSolidification.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 28
  ny = 28
  xmin = -7
  xmax = 7
  ymin = -7
  ymax = 7
  uniform_refine = 2
[]

[GlobalParams]
  radius = 0.2
  int_width = 0.1
  x1 = 0.0
  y1 = 0.0
  derivative_order = 2
[]

[Variables]
  [./w]
  [../]
  [./etaa0]
  [../]
  [./etab0]
  [../]
  [./T]
  [../]
[]

[AuxVariables]
  [./bnds]
  [../]
[]

[AuxKernels]
  [./bnds]
    type = BndsCalcAux
    variable = bnds
    v = 'etaa0 etab0'
  [../]
[]

[ICs]
  [./w]
    type = SmoothCircleIC
    variable = w
    # note w = A*(c-cleq), A = 1.0, cleq = 0.0 ,i.e., w = c (in the matrix/liquid phase)
    outvalue = -4.0
    invalue = 0.0
  [../]
  [./etaa0]
    type = SmoothCircleIC
    variable = etaa0
    #Solid phase
    outvalue = 0.0
    invalue = 1.0
  [../]
  [./etab0]
    type = SmoothCircleIC
    variable = etab0
    #Liquid phase
    outvalue = 1.0
    invalue = 0.0
  [../]
[]

[Kernels]
# Order parameter eta_alpha0
  [./ACa0_bulk]
    type = ACGrGrMulti
    variable = etaa0
    v =           'etab0'
    gamma_names = 'gab'
  [../]
  [./ACa0_sw]
    type = ACSwitching
    variable = etaa0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etab0 w T'
  [../]
  [./ACa0_int1]
    type = ACInterface2DMultiPhase1
    variable = etaa0
    etas = 'etab0'
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
    d2kappadgrad_etaa_name = d2kappadgrad_etaa
  [../]
  [./ACa0_int2]
    type = ACInterface2DMultiPhase2
    variable = etaa0
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
  [../]
  [./ea0_dot]
    type = TimeDerivative
    variable = etaa0
  [../]
# Order parameter eta_beta0
  [./ACb0_bulk]
    type = ACGrGrMulti
    variable = etab0
    v =           'etaa0'
    gamma_names = 'gab'
  [../]
  [./ACb0_sw]
    type = ACSwitching
    variable = etab0
    Fj_names  = 'omegaa omegab'
    hj_names  = 'ha     hb'
    coupled_variables = 'etaa0 w T'
  [../]
  [./ACb0_int1]
    type = ACInterface2DMultiPhase1
    variable = etab0
    etas = 'etaa0'
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
    d2kappadgrad_etaa_name = d2kappadgrad_etab
  [../]
  [./ACb0_int2]
    type = ACInterface2DMultiPhase2
    variable = etab0
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
  [../]
  [./eb0_dot]
    type = TimeDerivative
    variable = etab0
  [../]
#Chemical potential
  [./w_dot]
    type = SusceptibilityTimeDerivative
    variable = w
    f_name = chi
  [../]
  [./Diffusion]
    type = MatDiffusion
    variable = w
    diffusivity = Dchi
  [../]
  [./coupled_etaa0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etaa0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0'
  [../]
  [./coupled_etab0dot]
    type = CoupledSwitchingTimeDerivative
    variable = w
    v = etab0
    Fj_names = 'rhoa rhob'
    hj_names = 'ha   hb'
    coupled_variables = 'etaa0 etab0'
  [../]
  [./T_dot]
    type = TimeDerivative
    variable = T
  [../]
  [./CoefDiffusion]
    type = Diffusion
    variable = T
  [../]
  [./etaa0_dot_T]
    type = CoefCoupledTimeDerivative
    variable = T
    v = etaa0
    coef = -5.0
  [../]
[]

[Materials]
  [./ha]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = ha
    all_etas = 'etaa0 etab0'
    phase_etas = 'etaa0'
  [../]
  [./hb]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hb
    all_etas = 'etaa0 etab0'
    phase_etas = 'etab0'
  [../]
  [./omegaa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = omegaa
    material_property_names = 'Vm ka caeq'
    expression = '-0.5*w^2/Vm^2/ka-w/Vm*caeq'
  [../]
  [./omegab]
    type = DerivativeParsedMaterial
    coupled_variables = 'w T'
    property_name = omegab
    material_property_names = 'Vm kb cbeq S Tm'
    expression = '-0.5*w^2/Vm^2/kb-w/Vm*cbeq-S*(T-Tm)'
  [../]
  [./rhoa]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhoa
    material_property_names = 'Vm ka caeq'
    expression = 'w/Vm^2/ka + caeq/Vm'
  [../]
  [./rhob]
    type = DerivativeParsedMaterial
    coupled_variables = 'w'
    property_name = rhob
    material_property_names = 'Vm kb cbeq'
    expression = 'w/Vm^2/kb + cbeq/Vm'
  [../]
  [./kappaa]
    type = InterfaceOrientationMultiphaseMaterial
    kappa_name = kappaa
    dkappadgrad_etaa_name = dkappadgrad_etaa
    d2kappadgrad_etaa_name = d2kappadgrad_etaa
    etaa = etaa0
    etab = etab0
    anisotropy_strength = 0.05
    kappa_bar = 0.05
    outputs = exodus
    output_properties = 'kappaa'
  [../]
  [./kappab]
    type = InterfaceOrientationMultiphaseMaterial
    kappa_name = kappab
    dkappadgrad_etaa_name = dkappadgrad_etab
    d2kappadgrad_etaa_name = d2kappadgrad_etab
    etaa = etab0
    etab = etaa0
    anisotropy_strength = 0.05
    kappa_bar = 0.05
    outputs = exodus
    output_properties = 'kappab'
  [../]
  [./const]
    type = GenericConstantMaterial
    prop_names =  'L     D    chi  Vm   ka    caeq kb    cbeq  gab mu   S   Tm'
    prop_values = '33.33 1.0  0.1  1.0  10.0  0.1  10.0  0.9   4.5 10.0 1.0 5.0'
  [../]
  [./Mobility]
    type = ParsedMaterial
    property_name = Dchi
    material_property_names = 'D chi'
    expression = 'D*chi'
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type -ksp_gmres_restart'
  petsc_options_value = 'hypre    boomeramg      31'
   l_tol = 1.0e-3
  l_max_its = 30
  nl_max_its = 15
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 1e-10
  end_time = 2.0
  dtmax = 0.05
  [./TimeStepper]
    type = IterationAdaptiveDT
    dt = 0.0005
    cutback_factor = 0.7
    growth_factor = 1.2
  [../]
[]

[Adaptivity]
 initial_steps = 5
 max_h_level = 3
 initial_marker = err_eta
 marker = err_bnds
[./Markers]
   [./err_eta]
     type = ErrorFractionMarker
     coarsen = 0.3
     refine = 0.95
     indicator = ind_eta
   [../]
   [./err_bnds]
     type = ErrorFractionMarker
     coarsen = 0.3
     refine = 0.95
     indicator = ind_bnds
   [../]
 [../]
 [./Indicators]
   [./ind_eta]
     type = GradientJumpIndicator
     variable = etaa0
    [../]
    [./ind_bnds]
      type = GradientJumpIndicator
      variable = bnds
   [../]
 [../]
[]

[Outputs]
  time_step_interval = 5
  exodus = true
[]

(modules/phase_field/test/tests/MultiPhase/switchingfunctionmultiphasematerial.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 30
  ny = 30
  xmin = 0
  xmax = 30
  ymin = 0
  ymax = 30
[]

[Variables]
  [./c]
  [../]
  [./w]
  [../]
  [./eta1]
  [../]
  [./eta2]
  [../]
  [./eta3]
  [../]
  [./eta0]
  [../]
[]

[ICs]

  [./IC_eta2]
    x1 = 0
    y1 = 15
    x2 = 30
    y2 = 30
    inside = 1.0
    outside = 0.0
    type = BoundingBoxIC
    variable = eta2
    int_width = 0
  [../]
  [./IC_eta3]
    x1 = 15
    y1 = 0
    x2 = 30
    y2 = 15
    inside = 1.0
    outside = 0.0
    type = BoundingBoxIC
    variable = eta3
    int_width = 0
  [../]
  [./IC_eta4]
    x1 = 0
    y1 = 0
    x2 = 15
    y2 = 15
    inside = 1.0
    outside = 0.0
    type = BoundingBoxIC
    variable = eta0
    int_width = 0
  [../]
  [./IC_c]
    x1 = 15
    y1 = 15
    radius = 8.0
    outvalue = 0.05
    variable = c
    invalue = 1.0
    type = SmoothCircleIC
    int_width = 3.0
  [../]
  [./IC_eta1]
    x1 = 15
    y1 = 15
    radius = 8.0
    outvalue = 0.0
    variable = eta1
    invalue = 1.0
    type = SmoothCircleIC
    int_width = 3.0
  [../]
[]

# Not evalulating time evolution to improve test performance, since we are only testing
# the material property. However, the kernel and free energy are left in place to allow
# this test to be easily turned in to a working example

#[Kernels]
#  [./c_dot]
#    type = CoupledTimeDerivative
#    variable = w
#    v = c
#  [../]
#  [./c_res]
#    type = SplitCHParsed
#    variable = c
#    f_name = F
#    kappa_name = kappa_c
#    w = w
#    coupled_variables = 'eta1 eta2 eta3 eta0'
#  [../]
#  [./w_res]
#    # coupled_variables = 'c'
#    type = SplitCHWRes
#    variable = w
#    mob_name = M
#  [../]
#  [./AC1_bulk]
#    type = AllenCahn
#    variable = eta1
#    f_name = F
#    coupled_variables = 'c eta2 eta3 eta0'
#  [../]
#  [./AC1_int]
#    type = ACInterface
#    variable = eta1
#    kappa_name = kappa_s
#  [../]
#  [./e1_dot]
#    type = TimeDerivative
#    variable = eta1
#  [../]
#  [./AC2_bulk]
#    type = AllenCahn
#    variable = eta2
#    f_name = F
#    coupled_variables = 'c eta1 eta3 eta0'
#  [../]
#  [./AC2_int]
#    type = ACInterface
#    variable = eta2
#  [../]
#  [./e2_dot]
#    type = TimeDerivative
#    variable = eta2
#  [../]
#  [./AC3_bulk]
#    type = AllenCahn
#    variable = eta3
#    f_name = F
#    coupled_variables = 'c eta2 eta1 eta0'
#  [../]
#  [./AC3_int]
#    type = ACInterface
#    variable = eta3
#  [../]
#  [./e3_dot]
#    type = TimeDerivative
#    variable = eta3
#  [../]
#  [./AC4_bulk]
#    type = AllenCahn
#    variable = eta0
#    f_name = F
#    coupled_variables = 'c eta2 eta3 eta1'
#  [../]
#  [./AC4_int]
#    type = ACInterface
#    variable = eta0
#  [../]
#  [./e4_dot]
#    type = TimeDerivative
#    variable = eta0
#  [../]
#[]

[Materials]
  [./ha_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = ha
    all_etas = 'eta0 eta1 eta2 eta3'
    phase_etas = 'eta1'
    outputs = exodus
  [../]
  [./hb_test]
    type = SwitchingFunctionMultiPhaseMaterial
    h_name = hb
    all_etas = 'eta0 eta1 eta2 eta3'
    phase_etas = 'eta0 eta2 eta3'
    outputs = exodus
  [../]
  #[./ha]
  #  type = DerivativeParsedMaterial
  #  coupled_variables = 'eta1 eta2 eta3 eta0'
  #  property_name = ha_parsed
  #  expression = 'eta1^2/(eta1^2+eta2^2+eta3^2+eta0^2)'
  #  derivative_order = 2
  #  outputs = exodus
  #[../]
  #[./hb]
  #  type = DerivativeParsedMaterial
  #  coupled_variables = 'eta1 eta2 eta3 eta0'
  #  property_name = hb_parsed
  #  expression = '(eta2^2+eta3^2+eta0^2)/(eta1^2+eta2^2+eta3^2+eta0^2)'
  #  derivative_order = 2
  #  outputs = exodus
  #[../]

  #[./FreeEng]
  #  type = DerivativeParsedMaterial
  #  coupled_variables = 'c eta1 eta2 eta3 eta0'
  #  property_name = F
  #  constant_names = 'c1 c2 s g d e h z'
  #  constant_expressions = '1.0 0.0 1.5 1.5 1.0 1.0 1 1.0'
  #  material_property_names = 'ha(eta1,eta2,eta3,eta0) hb(eta1,eta2,eta3,eta0)'
  #  expression = 'a:=eta1^2/(eta1^2+eta2^2+eta3^2+eta0^2);f1:=ha*(c-c1)^2;b:=(eta2^2+eta3^2+eta0^2)/(eta1^2+eta2^2+eta3^2+eta0^2);f2:=hb*(c-c2)^2
  #  ;f3:=1/4*eta1^4-1/2*eta1^2+1/4*eta2^4-1/2*eta2^2+1/4*eta3^4-1/2*eta3^2+1/4*eta0^4-1/2*eta0^2
  #  ;f4:=z*s*(eta1^2*eta2^2+eta1^2*eta3^2+eta1^2*eta0^2)+g*(eta2^2*eta3^2+eta2^2*eta0^2+eta3^2*eta0^2);f:=1/4+e*f1+d*f2+h*(f3+f4);f'
  #  derivative_order = 2
  #[../]
  [./const]
    type = GenericConstantMaterial
    prop_names = 'kappa_c kappa_s kappa_op L M'
    prop_values = '0 3 3 1.0 1.0'
    outputs = exodus
  [../]

[]


[Executioner]
  type = Transient
  num_steps = 1
[]

[Problem]
  solve = false
  kernel_coverage_check = false
[]


[Outputs]
  exodus = true
[]

(test/tests/restart/restart_subapp_not_parent/complete_solve_no_subapp.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax =  1
  ymin = -1
  ymax =  1
  nx = 2
  ny = 2
  elem_type = QUAD9
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*t*(x*x+y*y)
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 2*t*(x*x+y*y)-4*t*t
  [../]
[]

[Variables]
  [./u]
    family = LAGRANGE
    order = SECOND
  [../]
[]

[ICs]
  [./u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  [../]
[]

[Postprocessors]
  [./average]
    type = ElementAverageValue
    variable = u
  [../]
[]

[Executioner]
  type = Transient
  start_time = 0.0
  end_time = 4.0
  dt = 1.0
[]

[Outputs]
  file_base = complete_solve_no_subapp
  exodus = true
[]

(test/tests/postprocessors/nodal_var_value/nodal_aux_var_value.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  xmin = 0
  xmax = 1
  ymin = 0
  ymax = 1
  elem_type = QUAD4
  # This test can only be run with renumering disabled, so the
  # NodalVariableValue postprocessor's node id is well-defined.
  allow_renumbering = false
[]

[Variables]
  active = 'v'

  [./v]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxVariables]
  active = 'v1'

  [./v1]
    order = FIRST
    family = LAGRANGE
  [../]
[]


[Functions]
  active = 'left_bc'

  [./left_bc]
    type = ParsedFunction
    expression = t
  [../]
[]

[Kernels]
  active = 'time_v diff_v'

  [./time_v]
    type = TimeDerivative
    variable = v
  [../]

  [./diff_v]
    type = Diffusion
    variable = v
  [../]
[]

[AuxKernels]
  active = 'ak1'

  [./ak1]
    type = CoupledAux
    variable = v1
    coupled = v
    value = 1
    operator = '+'
  [../]
[]

[BCs]
  active = 'left_v right_v'

  [./left_v]
    type = FunctionDirichletBC
    variable = v
    boundary = '3'
    function = left_bc
  [../]

  [./right_v]
    type = DirichletBC
    variable = v
    boundary = '1'
    value = 1
  [../]
[]

[Postprocessors]
  active = 'node4v node4v1'

  [./node4v]
    type = NodalVariableValue
    variable = v
    nodeid = 3
  [../]

  [./node4v1]
    type = NodalVariableValue
    variable = v1
    nodeid = 3
  [../]
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'

  dt = 0.1
  start_time = 0
  end_time = 1
[]

[Outputs]
  execute_on = 'timestep_end'
  file_base = out_nodal_aux_var_value
  exodus = true
[]

(test/tests/multiapps/picard_multilevel/multilevel_dt_rejection/picard_sub2.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./v]
  [../]
[]

[AuxVariables]
  [./w]
  [../]
[]

[Kernels]
  [./diff_v]
    type = Diffusion
    variable = v
  [../]
  [./td_v]
    type = TimeDerivative
    variable = v
  [../]
[]

[BCs]
  [./left_v]
    type = DirichletBC
    variable = v
    boundary = left
    value = 1
  [../]
  [./right_v]
    type = DirichletBC
    variable = v
    boundary = right
    value = 0
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_rel_tol = 1e-5 # loose enough to force multiple Picard iterations on this example
  l_tol = 1e-5 # loose enough to force multiple Picard iterations on this example
  num_steps = 2
[]

[Postprocessors]
  [parent_time]
    type = Receiver
    execute_on = 'timestep_end'
  []
  [parent_dt]
    type = Receiver
    execute_on = 'timestep_end'
  []
  [sub_time]
    type = Receiver
    execute_on = 'timestep_end'
  []
  [sub_dt]
    type = Receiver
    execute_on = 'timestep_end'
  []
  [time]
    type = TimePostprocessor
    execute_on = 'timestep_end'
  []
  [dt]
    type = TimestepSize
    execute_on = 'timestep_end'
  []
[]

[Outputs]
  csv = true
[]

(test/tests/multiapps/picard_catch_up/parent.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 2
  ny = 2
  parallel_type = replicated
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [v]
  []
[]

[Kernels]
  [diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  []
  [time]
    type = TimeDerivative
    variable = u
  []
  [force_u]
    type = CoupledForce
    variable = u
    v = 'v'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 'left'
    value = 0
  []
  [right]
    type = DirichletBC
    variable = u
    preset = false
    boundary = 'right'
    value = 1
  []
[]

[Postprocessors]
  [picard_its]
    type = NumFixedPointIterations
    execute_on = 'initial timestep_end'
  []
[]

[Executioner]
  type = Transient
  num_steps = 2
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  fixed_point_max_its = 30
  nl_abs_tol = 1e-14
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [sub]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0 0 0'
    input_files = 'sub.i'
    max_catch_up_steps = 100
    max_failures = 100
    catch_up = true
  []
[]

[Transfers]
  [v_from_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    from_multi_app = sub
    source_variable = v
    variable = v
  []
  [u_to_sub]
    type = MultiAppGeneralFieldNearestLocationTransfer
    to_multi_app = sub
    source_variable = u
    variable = u
  []
[]

(test/tests/multiapps/transient_multiapp/dt_from_multi_sub.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
  [../]
  [./td]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  dt = 0.1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]

(modules/combined/test/tests/DiffuseCreep/strain.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 50
  ny = 2
  xmin = 0
  xmax = 10
  ymin = 0
  ymax = 2
[]

[Variables]
  [./c]
    [./InitialCondition]
      type = FunctionIC
      function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);0.1+0.1*v'
    [../]
  [../]
  [./mu]
  [../]
  [./jx]
  [../]
  [./jy]
  [../]
[]

[AuxVariables]
  [./gb]
    family = LAGRANGE
    order  = FIRST
  [../]
  [./creep_strain_xx]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./creep_strain_yy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
  [./creep_strain_xy]
    family = MONOMIAL
    order  = CONSTANT
  [../]
[]

[Kernels]
  [./conc]
    type = CHSplitConcentration
    variable = c
    mobility = mobility_prop
    chemical_potential_var = mu
  [../]
  [./chempot]
    type = CHSplitChemicalPotential
    variable = mu
    chemical_potential_prop = mu_prop
    c = c
  [../]
  [./flux_x]
    type = CHSplitFlux
    variable = jx
    component = 0
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./flux_y]
    type = CHSplitFlux
    variable = jy
    component = 1
    mobility_name = mobility_prop
    mu = mu
    c = c
  [../]
  [./time]
    type = TimeDerivative
    variable = c
  [../]
[]

[AuxKernels]
  [./gb]
    type = FunctionAux
    variable = gb
    function = 'x0:=5.0;thk:=0.5;m:=2;r:=abs(x-x0);v:=exp(-(r/thk)^m);v'
  [../]
  [./creep_strain_xx]
    type = RankTwoAux
    variable = creep_strain_xx
    rank_two_tensor = creep_strain
    index_i = 0
    index_j = 0
  [../]
  [./creep_strain_yy]
    type = RankTwoAux
    variable = creep_strain_yy
    rank_two_tensor = creep_strain
    index_i = 1
    index_j = 1
  [../]
  [./creep_strain_xy]
    type = RankTwoAux
    variable = creep_strain_xy
    rank_two_tensor = creep_strain
    index_i = 0
    index_j = 1
  [../]
[]

[Materials]
  [./chemical_potential]
    type = DerivativeParsedMaterial
    block = 0
    property_name = mu_prop
    coupled_variables = c
    expression = 'c'
    derivative_order = 1
  [../]
  [./var_dependence]
    type = DerivativeParsedMaterial
    block = 0
    expression = 'c*(1.0-c)'
    coupled_variables = c
    property_name = var_dep
    derivative_order = 1
  [../]
  [./mobility]
    type = CompositeMobilityTensor
    block = 0
    M_name = mobility_prop
    tensors = diffusivity
    weights = var_dep
    args = c
  [../]
  [./phase_normal]
    type = PhaseNormalTensor
    phase = gb
    normal_tensor_name = gb_normal
  [../]
  [./aniso_tensor]
    type = GBDependentAnisotropicTensor
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = aniso_tensor
  [../]
  [./diffusivity]
    type = GBDependentDiffusivity
    gb = gb
    bulk_parameter = 0.1
    gb_parameter = 1
    gb_normal_tensor_name = gb_normal
    gb_tensor_prop_name = diffusivity
  [../]
  [./diffuse_strain_increment]
    type = FluxBasedStrainIncrement
    xflux = jx
    yflux = jy
    gb = gb
    property_name = diffuse
  [../]
  [./diffuse_creep_strain]
    type = SumTensorIncrements
    tensor_name = creep_strain
    coupled_tensor_increment_names = diffuse
  [../]
[]

[BCs]
  [./Periodic]
    [./all]
      auto_direction = 'x y'
    [../]
  [../]
[]

[Executioner]
  type = Transient
  solve_type = PJFNK

  petsc_options_iname = '-pc_type -ksp_grmres_restart -sub_ksp_type -sub_pc_type -pc_asm_overlap'
  petsc_options_value = 'asm      31                  preonly       lu           1'

  nl_max_its = 5
  dt = 20
  num_steps = 5
[]

[Preconditioning]
  [./smp]
     type = SMP
     full = true
  [../]
[]

[Outputs]
  exodus = true
[]

(test/tests/tag/tag_nodal_kernels.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
  [./nodal_ode]
  [../]
[]

[Kernels]
  [./diff]
    type = Diffusion
    variable = u
    extra_matrix_tags = 'mat_tag1 mat_tag2'
    extra_vector_tags = 'vec_tag1'
  [../]
  [./time]
    type = TimeDerivative
    variable = u
    extra_matrix_tags = 'mat_tag1 mat_tag2'
    extra_vector_tags = 'vec_tag1'
  [../]
[]

[NodalKernels]
  [./td]
    type = TimeDerivativeNodalKernel
    variable = nodal_ode
    extra_matrix_tags = 'mat_tag1 mat_tag2'
    extra_vector_tags = 'vec_tag1'
  [../]
  [./constant_rate]
    type = ConstantRate
    variable = nodal_ode
    rate = 1.0
    extra_matrix_tags = 'mat_tag1 mat_tag2'
    extra_vector_tags = 'vec_tag1 vec_tag2'
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
    extra_matrix_tags = 'mat_tag1 mat_tag2'
    extra_vector_tags = 'vec_tag1'
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 10
    extra_matrix_tags = 'mat_tag1 mat_tag2'
    extra_vector_tags = 'vec_tag1'
  [../]
[]

[Problem]
  type = TagTestProblem
  test_tag_vectors =  'time nontime residual vec_tag1 vec_tag2'
  test_tag_matrices = 'mat_tag1 mat_tag2'

  extra_tag_matrices = 'mat_tag1 mat_tag2'
  extra_tag_vectors  = 'vec_tag1 vec_tag2'
[]

[AuxVariables]
  [./tag_variable1]
    order = FIRST
    family = LAGRANGE
  [../]

  [./tag_variable2]
    order = FIRST
    family = LAGRANGE
  [../]
[]

[AuxKernels]
  [./TagVectorAux1]
    type = TagVectorAux
    variable = tag_variable1
    v = nodal_ode
    vector_tag = vec_tag2
    execute_on = timestep_end
  [../]

  [./TagVectorAux2]
    type = TagMatrixAux
    variable = tag_variable2
    v = u
    matrix_tag = mat_tag2
    execute_on = timestep_end
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  nl_rel_tol = 1e-08
  dt = 0.01
[]

[Outputs]
  exodus = true
[]

(test/tests/multiapps/grid-sequencing/vi-coarse.i)

l = 10
nx = 40
num_steps = 2

[Mesh]
  type = GeneratedMesh
  dim = 1
  xmax = ${l}
  nx = ${nx}
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [bounds]
  []
[]

[Bounds]
  [u_upper_bound]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = upper
    bound_value = ${l}
  []
  [u_lower_bound]
    type = ConstantBounds
    variable = bounds
    bounded_variable = u
    bound_type = lower
    bound_value = 0
  []
[]

[ICs]
  [u]
    type = FunctionIC
    variable = u
    function = 'x'
  []
[]

[Kernels]
  [time]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [ffn]
    type = BodyForce
    variable = u
    function = 'if(x<5,-1,1)'
  []
[]

[BCs]
  [left]
    type = DirichletBC
    boundary = left
    value = 0
    variable = u
  []
  [right]
    type = DirichletBC
    boundary = right
    value = ${l}
    variable = u
  []
[]

[Preconditioning]
  [smp]
    type = SMP
    full = true
  []
[]

[Executioner]
  type = Transient
  num_steps = ${num_steps}
  solve_type = NEWTON
  dtmin = 1
  petsc_options = '-snes_vi_monitor'
  petsc_options_iname = '-snes_max_linear_solve_fail -ksp_max_it -pc_type -sub_pc_factor_levels -snes_linesearch_type -snes_type'
  petsc_options_value = '0                           30          asm      16                    basic                 vinewtonrsls'
[]

[Outputs]
  exodus = true
  [csv]
    type = CSV
    execute_on = 'nonlinear timestep_end'
  []
  [dof]
    type = DOFMap
    execute_on = 'initial'
  []
[]

[Debug]
  show_var_residual_norms = true
[]

[Postprocessors]
  active = 'upper_violations lower_violations'
  [upper_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = '${fparse 10+1e-8}'
    comparator = 'greater'
  []
  [lower_violations]
    type = GreaterThanLessThanPostprocessor
    variable = u
    execute_on = 'nonlinear timestep_end'
    value = -1e-8
    comparator = 'less'
  []
  [nls]
    type = NumNonlinearIterations
  []
  [cum_nls]
    type = CumulativeValuePostprocessor
    postprocessor = nls
  []
[]

[MultiApps]
  [coarser]
    type = TransientMultiApp
    app_type = MooseTestApp
    execute_on = timestep_begin
    positions = '0 0 0'
    input_files = vi-coarser.i
  []
[]

[Transfers]
  [mesh_function_begin]
    type = MultiAppGeneralFieldShapeEvaluationTransfer
    from_multi_app = coarser
    source_variable = u
    variable = u
    execute_on = timestep_begin
  []
[]

(test/tests/transfers/multiapp_variable_value_sample_transfer/parent_quad.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[AuxVariables]
  [./parent_aux]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[Functions]
  [./func]
    type = ParsedFunction
    expression = x*y*t
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[AuxKernels]
  [./func_aux]
    type = FunctionAux
    variable = parent_aux
    function = func
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 5
  dt = 0.1
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
  nl_rel_tol = 1e-12
[]

[Outputs]
  exodus = true
[]

[MultiApps]
  [./quad]
    type = TransientMultiApp
    app_type = MooseTestApp
    positions = '0.05 0.05 0 0.95 0.05 0 0.05 0.95 0 0.95 0.95 0'
    input_files = quad_sub.i
  [../]
[]

[Transfers]
  [./parent_to_sub]
    type = MultiAppVariableValueSamplePostprocessorTransfer
    to_multi_app = quad
    source_variable = parent_aux
    postprocessor = pp
  [../]
[]

(modules/optimization/examples/simpleTransient/forward_and_adjoint.i)

[Mesh]
  [gmg]
    type = GeneratedMeshGenerator
    dim = 2
    nx = 10
    ny = 10
    xmin = -1
    xmax = 1
    ymin = -1
    ymax = 1
  []
[]

[Variables]
  [u]
  []
[]

[VectorPostprocessors]
  [src_values]
    type = CSVReader
    csv_file = source_params.csv
    header = true
    outputs = none
  []
[]

[ICs]
  [initial]
    type = FunctionIC
    variable = u
    function = exact
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
  [diff]
    type = Diffusion
    variable = u
  []
  [src]
    type = BodyForce
    variable = u
    function = source
  []
[]

[BCs]
  [dirichlet]
    type = DirichletBC
    variable = u
    boundary = 'left right top bottom'
    value = 0
  []
[]

[Functions]
  [exact]
    type = ParsedFunction
    value = '2*exp(-2.0*(x - sin(2*pi*t))^2)*exp(-2.0*(y - cos(2*pi*t))^2)*cos((1/2)*x*pi)*cos((1/2)*y*pi)/pi'
  []
  [source]
    type = NearestReporterCoordinatesFunction
    x_coord_name = src_values/coordx
    y_coord_name = src_values/coordy
    time_name = src_values/time
    value_name = src_values/values
  []
[]

[Executioner]
  type = TransientAndAdjoint
  forward_system = nl0
  adjoint_system = adjoint

  num_steps = 100
  end_time = 1

  nl_rel_tol = 1e-12
  l_tol = 1e-12
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'
[]

[Reporters]
  [measured_data]
    type = OptimizationData
    measurement_file = mms_data.csv
    file_xcoord = x
    file_ycoord = y
    file_zcoord = z
    file_time = t
    file_value = u
    variable = u
    execute_on = timestep_end
    objective_name = objective_value
    outputs = none
  []
[]

[Postprocessors]
  [topRight_pp]
    type = PointValue
    point = '0.5 0.5 0'
    variable = u
    execute_on = TIMESTEP_END
  []
  [bottomRight_pp]
    type = PointValue
    point = '-0.5 0.5 0'
    variable = u
    execute_on = TIMESTEP_END
  []
  [bottomLeft_pp]
    type = PointValue
    point = '-0.5 -0.5 0'
    variable = u
    execute_on = TIMESTEP_END
  []
  [topLeft_pp]
    type = PointValue
    point = '0.5 -0.5 0'
    variable = u
    execute_on = TIMESTEP_END
  []
[]

[Outputs]
  csv = true
  console = false
[]

[Problem]
  nl_sys_names = 'nl0 adjoint'
  kernel_coverage_check = false
[]

[Variables]
  [u_adjoint]
    solver_sys = adjoint
    outputs = none
  []
[]

[DiracKernels]
  [misfit]
    type = ReporterTimePointSource
    variable = u_adjoint
    value_name = measured_data/misfit_values
    x_coord_name = measured_data/measurement_xcoord
    y_coord_name = measured_data/measurement_ycoord
    z_coord_name = measured_data/measurement_zcoord
    time_name = measured_data/measurement_time
  []
[]

[VectorPostprocessors]
  [adjoint]
    type = ElementOptimizationSourceFunctionInnerProduct
    variable = u_adjoint
    function = source
    execute_on = ADJOINT_TIMESTEP_END
    outputs = none
  []
[]

(test/tests/time_steppers/timesequence_stepper/timesequence.i)

[Mesh]
  type = GeneratedMesh
  dim = 2
  xmin = -1
  xmax =  1
  ymin = -1
  ymax =  1
  nx = 2
  ny = 2
  elem_type = QUAD9
[]

[Functions]
  [./exact_fn]
    type = ParsedFunction
    expression = t*t*(x*x+y*y)
  [../]

  [./forcing_fn]
    type = ParsedFunction
    expression = 2*t*(x*x+y*y)-4*t*t
  [../]
[]

[Variables]
  [./u]
    family = LAGRANGE
    order = SECOND
  [../]
[]

[ICs]
  [./u_var]
    type = FunctionIC
    variable = u
    function = exact_fn
  [../]
[]

[Kernels]
  [./td]
    type = TimeDerivative
    variable = u
  [../]

  [./diff]
    type = Diffusion
    variable = u
  [../]

  [./ffn]
    type = BodyForce
    variable = u
    function = forcing_fn
  [../]
[]

[BCs]
  [./all]
    type = FunctionDirichletBC
    variable = u
    boundary = 'left right top bottom'
    function = exact_fn
  [../]
[]

[Executioner]
  type = Transient
  end_time = 4.0
  [./TimeStepper]
    type = TimeSequenceStepper
    time_sequence  = '0   0.85 1.3 2 4'
  [../]
[]

[Outputs]
  exodus = true
[]

(modules/xfem/test/tests/moving_interface/cut_mesh_3d.i)

[GlobalParams]
  order = FIRST
  family = LAGRANGE
  displacements = 'disp_x disp_y disp_z'
[]

[XFEM]
  geometric_cut_userobjects = 'cut_mesh'
  qrule = volfrac
  output_cut_plane = true
[]

[Mesh]
  [gen]
    type = GeneratedMeshGenerator
    dim = 3
    nx = 11
    ny = 11
    nz = 1
    xmin = 0.0
    xmax = 1.0
    ymin = 0.0
    ymax = 1.0
    zmin = 0.0
    zmax = 0.1
    elem_type = HEX8
  []
  [block1]
    type = SubdomainBoundingBoxGenerator
    block_id = 1
    bottom_left = '0 0 0'
    top_right = '0.5 1 0.1'
    input = gen
  []
  [block2]
    type = SubdomainBoundingBoxGenerator
    block_id = 2
    bottom_left = '0.5 0 0'
    top_right = '1 1 0.1'
    input = block1
  []
[]

[UserObjects]
  [cut_mesh]
    type = InterfaceMeshCut3DUserObject
    mesh_file = cylinder_surface.e
    interface_velocity_function = vel_func
    heal_always = true
    block = 2
  []
[]

[Functions]
  [vel_func]
    type = ConstantFunction
    value = 0.011
  []
[]

[Physics/SolidMechanics/QuasiStatic]
  displacements = 'disp_x disp_y disp_z'
  [all]
    strain = SMALL
    add_variables = true
    incremental = false
    generate_output = 'stress_xx stress_yy stress_zz vonmises_stress'
    displacements = 'disp_x disp_y disp_z'
  []
[]

[Variables]
  [u]
  []
[]

[AuxVariables]
  [ls]
  []
[]

[AuxKernels]
  [ls]
    type = MeshCutLevelSetAux
    mesh_cut_user_object = cut_mesh
    variable = ls
  []
[]

[Kernels]
  [diff]
    type = MatDiffusion
    variable = u
    diffusivity = 1
  []
  [time_deriv]
    type = TimeDerivative
    variable = u
  []
[]

[Materials]
  [elasticity_tensor]
    type = ComputeIsotropicElasticityTensor
    youngs_modulus = 207000
    poissons_ratio = 0.3
  []
  [stress]
    type = ComputeLinearElasticStress
  []
[]

[BCs]
  [front_u]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  []
  [back_u]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  []
  [box1_x]
    type = DirichletBC
    variable = disp_x
    value = 0
    boundary = left
  []
  [box1_y]
    type = DirichletBC
    variable = disp_y
    value = 0
    boundary = left
  []
  [box1_z]
    type = DirichletBC
    variable = disp_z
    value = 0
    boundary = left
  []
  [box2_x]
    type = FunctionDirichletBC
    variable = disp_x
    function = '0.01*t'
    boundary = right
  []
[]

[Executioner]
  type = Transient

  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type'
  petsc_options_value = 'lu'

  l_max_its = 20
  l_tol = 1e-3
  nl_max_its = 15
  nl_rel_tol = 1e-10
  nl_abs_tol = 1e-12

  start_time = 0.0
  dt = 2
  end_time = 2

  max_xfem_update = 1
[]

[Outputs]
  exodus = true
[]

(modules/combined/examples/publications/rapid_dev/fig7a.i)

#
# Fig. 7 input for 10.1016/j.commatsci.2017.02.017
# D. Schwen et al./Computational Materials Science 132 (2017) 36-45
# Solid gray curve (1)
# Eigenstrain and elastic energies ar computed per phase and then interpolated.
# Supply the RADIUS parameter (10-35) on the command line to generate data
# for all curves in the plot.
#

[Mesh]
  type = GeneratedMesh
  dim = 1
  nx = 32
  xmin = 0
  xmax = 100
  second_order = true
[]

[Problem]
  coord_type = RSPHERICAL
[]

[GlobalParams]
  displacements = 'disp_r'
[]

[Functions]
  [./diff]
    type = ParsedFunction
    expression = '${RADIUS}-pos_c'
    symbol_names = pos_c
    symbol_values = pos_c
  [../]
[]

# AuxVars to compute the free energy density for outputting
[AuxVariables]
  [./local_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
  [./cross_energy]
    order = CONSTANT
    family = MONOMIAL
  [../]
[]

[AuxKernels]
  [./local_free_energy]
    type = TotalFreeEnergy
    variable = local_energy
    interfacial_vars = 'c'
    kappa_names = 'kappa_c'
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
[]

[Variables]
  # Solute concentration variable
  [./c]
    [./InitialCondition]
      type = SmoothCircleIC
      invalue = 1
      outvalue = 0
      x1 = 0
      y1 = 0
      radius = ${RADIUS}
      int_width = 3
    [../]
  [../]
  [./w]
  [../]

  # Phase order parameter
  [./eta]
    [./InitialCondition]
      type = SmoothCircleIC
      invalue = 1
      outvalue = 0
      x1 = 0
      y1 = 0
      radius = ${RADIUS}
      int_width = 3
    [../]
  [../]

  # Mesh displacement
  [./disp_r]
    order = SECOND
  [../]

  [./Fe_fit]
    order = SECOND
  [../]
[]

[Kernels]
  # Set up stress divergence kernels
  [./TensorMechanics]
  [../]

  # Split Cahn-Hilliard kernels
  [./c_res]
    type = SplitCHParsed
    variable = c
    f_name = F
    args = 'eta'
    kappa_name = kappa_c
    w = w
  [../]
  [./wres]
    type = SplitCHWRes
    variable = w
    mob_name = M
  [../]
  [./time]
    type = CoupledTimeDerivative
    variable = w
    v = c
  [../]

  # Allen-Cahn and Lagrange-multiplier constraint kernels for order parameter 1
  [./detadt]
    type = TimeDerivative
    variable = eta
  [../]
  [./ACBulk1]
    type = AllenCahn
    variable = eta
    args = 'c'
    mob_name = L
    f_name = F
  [../]
  [./ACInterface]
    type = ACInterface
    variable = eta
    mob_name = L
    kappa_name = kappa_eta
  [../]

  [./Fe]
    type = MaterialPropertyValue
    prop_name = Fe
    variable = Fe_fit
  [../]

  [./autoadjust]
    type = MaskedBodyForce
    variable = w
    function = diff
    mask = mask
  [../]
[]

[Materials]
  # declare a few constants, such as mobilities (L,M) and interface gradient prefactors (kappa*)
  [./consts]
    type = GenericConstantMaterial
    prop_names  = 'M   L   kappa_c kappa_eta'
    prop_values = '1.0 1.0 0.5     1'
  [../]

  # forcing function mask
  [./mask]
    type = ParsedMaterial
    property_name = mask
    expression = grad/dt
    material_property_names = 'grad dt'
  [../]
  [./grad]
    type = VariableGradientMaterial
    variable = c
    prop = grad
  [../]
  [./time]
    type = TimeStepMaterial
  [../]

  # global mechanical properties
  [./elasticity_tensor_1]
    type = ComputeElasticityTensor
    C_ijkl = '1 1'
    base_name = phase1
    fill_method = symmetric_isotropic
  [../]
  [./elasticity_tensor_2]
    type = ComputeElasticityTensor
    C_ijkl = '1 1'
    base_name = phase2
    fill_method = symmetric_isotropic
  [../]
  [./strain_1]
    type = ComputeRSphericalSmallStrain
    base_name = phase1
  [../]
  [./strain_2]
    type = ComputeRSphericalSmallStrain
    base_name = phase2
    eigenstrain_names = eigenstrain
  [../]
  [./stress_1]
    type = ComputeLinearElasticStress
    base_name = phase1
  [../]
  [./stress_2]
    type = ComputeLinearElasticStress
    base_name = phase2
  [../]

  # eigenstrain per phase
  [./eigenstrain2]
    type = ComputeEigenstrain
    eigen_base = '0.05 0.05 0.05 0 0 0'
    base_name = phase2
    eigenstrain_name = eigenstrain
  [../]

  # switching functions
  [./switching]
    type = SwitchingFunctionMaterial
    function_name = h
    eta = eta
    h_order = SIMPLE
  [../]
  [./barrier]
    type = BarrierFunctionMaterial
    eta = eta
  [../]

  # chemical free energies
  [./chemical_free_energy_1]
    type = DerivativeParsedMaterial
    property_name = Fc1
    expression = 'c^2'
    coupled_variables = 'c'
    derivative_order = 2
  [../]
  [./chemical_free_energy_2]
    type = DerivativeParsedMaterial
    property_name = Fc2
    expression = '(1-c)^2'
    coupled_variables = 'c'
    derivative_order = 2
  [../]

  # elastic free energies
  [./elastic_free_energy_1]
    type = ElasticEnergyMaterial
    f_name = Fe1
    args = ''
    base_name = phase1
    derivative_order = 2
  [../]
  [./elastic_free_energy_2]
    type = ElasticEnergyMaterial
    f_name = Fe2
    args = ''
    base_name = phase2
    derivative_order = 2
  [../]

  # per phase free energies
  [./free_energy_1]
    type = DerivativeSumMaterial
    property_name = F1
    sum_materials = 'Fc1 Fe1'
    coupled_variables = 'c'
    derivative_order = 2
  [../]
  [./free_energy_2]
    type = DerivativeSumMaterial
    property_name = F2
    sum_materials = 'Fc2 Fe2'
    coupled_variables = 'c'
    derivative_order = 2
  [../]

  # global chemical free energy
  [./global_free_energy]
    type = DerivativeTwoPhaseMaterial
    f_name = F
    fa_name = F1
    fb_name = F2
    eta = eta
    args = 'c'
    W = 4
  [../]

  # global stress
  [./global_stress]
    type = TwoPhaseStressMaterial
    base_A = phase1
    base_B = phase2
  [../]

  [./elastic_free_energy]
    type = DerivativeTwoPhaseMaterial
    f_name = Fe
    fa_name = Fe1
    fb_name = Fe2
    eta = eta
    args = 'c'
    W = 0
  [../]
[]

[BCs]
  [./left_r]
    type = DirichletBC
    variable = disp_r
    boundary = 'left'
    value = 0
  [../]
[]

[Preconditioning]
  [./SMP]
    type = SMP
    full = true
  [../]
[]

# We monitor the total free energy and the total solute concentration (should be constant)
[Postprocessors]
  [./total_free_energy]
    type = ElementIntegralVariablePostprocessor
    variable = local_energy
    execute_on = 'INITIAL TIMESTEP_END'
    outputs = 'table console'
  [../]
  [./total_solute]
    type = ElementIntegralVariablePostprocessor
    variable = c
    execute_on = 'INITIAL TIMESTEP_END'
    outputs = 'table console'
  [../]
  [./pos_c]
    type = FindValueOnLine
    start_point = '0 0 0'
    end_point = '100 0 0'
    v = c
    target = 0.582
    tol = 1e-8
    execute_on = 'INITIAL TIMESTEP_END'
    outputs = 'table console'
  [../]
  [./pos_eta]
    type = FindValueOnLine
    start_point = '0 0 0'
    end_point = '100 0 0'
    v = eta
    target = 0.5
    tol = 1e-8
    execute_on = 'INITIAL TIMESTEP_END'
    outputs = 'table console'
  [../]
  [./c_min]
    type = ElementExtremeValue
    value_type = min
    variable = c
    execute_on = 'INITIAL TIMESTEP_END'
    outputs = 'table console'
  [../]
[]

[VectorPostprocessors]
  [./line]
    type = LineValueSampler
    variable = 'Fe_fit c w'
    start_point = '0 0 0'
    end_point =   '100 0 0'
    num_points = 5000
    sort_by = x
    outputs = vpp
    execute_on = 'INITIAL TIMESTEP_END'
  [../]
[]

[Executioner]
  type = Transient
  scheme = bdf2

  solve_type = 'PJFNK'
  petsc_options_iname = '-pc_type -sub_pc_type'
  petsc_options_value = 'asm      lu'

  l_max_its = 30
  nl_max_its = 15
  l_tol = 1.0e-4
  nl_rel_tol = 1.0e-8
  nl_abs_tol = 2.0e-9
  start_time = 0.0
  end_time = 100000.0

  [./TimeStepper]
    type = IterationAdaptiveDT
    optimal_iterations = 7
    iteration_window = 1
    dt = 1
  [../]

  [./Adaptivity]
    initial_adaptivity = 5
    interval = 10
    max_h_level = 5
    refine_fraction = 0.9
    coarsen_fraction = 0.1
  [../]
[]

[Outputs]
  print_linear_residuals = false
  perf_graph = true
  execute_on = 'INITIAL TIMESTEP_END'
  [./table]
    type = CSV
    delimiter = ' '
    file_base = radius_${RADIUS}/energy_pp
  [../]
  [./vpp]
    type = CSV
    delimiter = ' '
    sync_times = '10 50 100 500 1000 5000 10000 50000 100000'
    sync_only = true
    time_data = true
    file_base = radius_${RADIUS}/energy_vpp
  [../]
[]

(test/tests/time_steppers/iteration_adaptive/adapt_tstep_grow_dtfunc.i)

[Mesh]
  type = GeneratedMesh
  dim = 1
[]

[Variables]
  [u]
  []
[]

[Kernels]
  [dt]
    type = TimeDerivative
    variable = u
  []
[]

[Executioner]
  type = Transient
  end_time = 20.0
  verbose = true

  [TimeStepper]
    type = IterationAdaptiveDT
    dt = 1.0
    optimal_iterations = 10
    time_t = '0.0 5.0'
    time_dt = '1.0 5.0'
  []
[]

[Postprocessors]
  [_dt]
    type = TimestepSize
  []
[]

[Outputs]
  csv = true
  [ckp]
    type = Checkpoint
    num_files = 3
  []
[]

(test/tests/transfers/multiapp_postprocessor_to_scalar/parent2_wrong_order.i)