Moose::PetscSupport Namespace Reference

Classes
class	PetscOptions
	A struct for storing the various types of petsc options and values. More...

Functions
void	petscSetOptions (const PetscOptions &po, const SolverParams &solver_params, FEProblemBase *const problem=nullptr)
	A function for setting the PETSc options in PETSc from the options supplied to MOOSE. More...
void	petscSetOptions (const PetscOptions &po, const std::vector< SolverParams > &solver_params, FEProblemBase *problem)
	A function for setting the PETSc options in PETSc from the options supplied to MOOSE. More...
void	petscSetKSPDefaults (FEProblemBase &problem, KSP ksp)
	Set the default options for a KSP. More...
template<typename T >
void	setLinearSolverDefaults (FEProblemBase &problem, libMesh::LinearSolver< T > &linear_solver)
	Set the defaults for a libMesh LinearSolver. More...
void	petscSetDefaults (FEProblemBase &problem)
	Sets the default options for PETSc. More...
void	petscSetupDM (NonlinearSystemBase &nl, const std::string &dm_name)
	Setup the PETSc DM object. More...
PetscErrorCode	petscSetupOutput (CommandLine *cmd_line)
void	outputNorm (libMesh::Real old_norm, libMesh::Real norm, bool use_color=false)
	Helper function for outputting the norm values with/without color. More...
PetscErrorCode	petscLinearMonitor (KSP, PetscInt its, PetscReal rnorm, void *void_ptr)
	Helper function for displaying the linear residual during PETSC solve. More...
void	processSingletonMooseWrappedOptions (FEProblemBase &fe_problem, const InputParameters &params)
	Process some MOOSE-wrapped PETSc options. More...
void	storePetscOptions (FEProblemBase &fe_problem, const std::string &prefix, const ParallelParamObject &param_object)
	Stores the PETSc options supplied from the parameter object on the problem. More...
void	setConvergedReasonFlags (FEProblemBase &fe_problem, const std::string &prefix)
	Set flags that will instruct the user on the reason their simulation diverged from PETSc's perspective. More...
void	setSolveTypeFromParams (FEProblemBase &fe_problem, const InputParameters &params)
	Sets the FE problem's solve type from the input params. More...
void	setLineSearchFromParams (FEProblemBase &fe_problem, const InputParameters &params)
	Sets the FE problem's line search from the input params. More...
void	setMFFDTypeFromParams (FEProblemBase &fe_problem, const InputParameters &params)
	Sets the FE problem's matrix-free finite difference type from the input params. More...
void	storePetscOptionsFromParams (FEProblemBase &fe_problem, const InputParameters &params)
	Stores the Petsc flags and pair options fron the input params in the given PetscOptions object. More...
void	addPetscFlagsToPetscOptions (const MultiMooseEnum &petsc_flags, const std::string &prefix, const ParallelParamObject &param_object, PetscOptions &petsc_options)
	Populate flags in a given PetscOptions object using a vector of input arguments. More...
void	addPetscPairsToPetscOptions (const std::vector< std::pair< MooseEnumItem, std::string >> &petsc_pair_options, const unsigned int mesh_dimension, const std::string &prefix, const ParallelParamObject &param_object, PetscOptions &petsc_options)
	Populate name and value pairs in a given PetscOptions object using vectors of input arguments. More...
std::set< std::string >	getPetscValidLineSearches ()
	Returns the valid petsc line search options as a set of strings. More...
InputParameters	getPetscValidParams ()
	Returns the PETSc options that are common between Executioners and Preconditioners. More...
MultiMooseEnum	getCommonPetscFlags ()
	A helper function to produce a MultiMooseEnum with commonly used PETSc single options (flags) More...
MultiMooseEnum	getCommonSNESFlags ()
	A helper function to produce a MultiMooseEnum with commonly used PETSc snes single options (flags) More...
MultiMooseEnum	getCommonKSPFlags ()
	A helper function to produce a MultiMooseEnum with commonly used PETSc ksp single options (flags) More...
MultiMooseEnum	getCommonPetscKeys ()
	A helper function to produce a MultiMooseEnum with commonly used PETSc iname options (keys in key-value pairs) More...
MultiMooseEnum	getCommonSNESKeys ()
	A helper function to produce a MultiMooseEnum with commonly used PETSc snes option names (keys) More...
MultiMooseEnum	getCommonKSPKeys ()
	A helper function to produce a MultiMooseEnum with commonly used PETSc ksp option names (keys) More...
bool	isSNESVI (FEProblemBase &fe_problem)
	check if SNES type is variational inequalities (VI) solver More...
void	setSinglePetscOption (const std::string &name, const std::string &value="", FEProblemBase *const problem=nullptr)
	A wrapper function for dealing with different versions of PetscOptionsSetValue. More...
void	setSinglePetscOptionIfAppropriate (const MultiMooseEnum &dont_add_these_options, const std::string &name, const std::string &value="", FEProblemBase *const problem=nullptr)
	Same as setSinglePetscOption, but does not set the option if it doesn't make sense for the current simulation type, e.g. More...
void	addPetscOptionsFromCommandline ()
void	petscSetDefaultPCSide (FEProblemBase &problem, KSP ksp)
	Setup which side we want to apply preconditioner. More...
void	petscSetDefaultKSPNormType (FEProblemBase &problem, KSP ksp)
	Set norm type. More...
void	colorAdjacencyMatrix (PetscScalar *adjacency_matrix, unsigned int size, unsigned int colors, std::vector< unsigned int > &vertex_colors, const char *coloring_algorithm)
	This method takes an adjacency matrix, and a desired number of colors and applies a graph coloring algorithm to produce a coloring. More...
void	dontAddPetscFlag (const std::string &flag, PetscOptions &petsc_options)
	Function to ensure that a particular petsc option is not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line. More...
void	dontAddNonlinearConvergedReason (FEProblemBase &fe_problem)
	Function to ensure that -snes_converged_reason is not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line. More...
void	dontAddLinearConvergedReason (FEProblemBase &fe_problem)
	Function to ensure that -ksp_converged_reason is not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line. More...
void	dontAddCommonKSPOptions (FEProblemBase &fe_problem)
	Function to ensure that common KSP options are not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line. More...
void	dontAddCommonSNESOptions (FEProblemBase &fe_problem)
	Function to ensure that common SNES options are not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line. More...
std::string	stringify (const LineSearchType &t)
std::string	stringify (const MffdType &t)
void	setSolverOptions (const SolverParams &solver_params, const MultiMooseEnum &dont_add_these_options)
void	petscSetOptionsHelper (const PetscOptions &po, FEProblemBase *const problem)
PetscErrorCode	petscNonlinearConverged (SNES, PetscInt it, PetscReal, PetscReal, PetscReal, SNESConvergedReason *reason, void *ctx)
PCSide	getPetscPCSide (Moose::PCSideType pcs)
KSPNormType	getPetscKSPNormType (Moose::MooseKSPNormType kspnorm)
template<typename T >
void	checkUserProvidedPetscOption (const T &option, const ParallelParamObject &param_object)

Function Documentation

addPetscFlagsToPetscOptions()

void Moose::PetscSupport::addPetscFlagsToPetscOptions	(	const MultiMooseEnum &	petsc_flags,
		const std::string &	prefix,
		const ParallelParamObject &	param_object,
		PetscOptions &	petsc_options
	)

Populate flags in a given PetscOptions object using a vector of input arguments.

Parameters

petsc_flags	Container holding the flags of the petsc options
prefix	The prefix to add to the user provided petsc_flags
param_object	The ParallelParamObject adding the PETSc options
petsc_options	Data structure which handles petsc options within moose

"-log_summary" cannot be used in the input file. This option needs to be set when PETSc is initialized which happens before the parser is even created. We'll throw an error if somebody attempts to add this option later.

"-log_summary" cannot be used in the input file. This option needs to be set when PETSc is initialized which happens before the parser is even created. We'll throw an error if somebody attempts to add this option later.

Definition at line 623 of file PetscSupport.C.

Referenced by storePetscOptions().

{
  checkPrefix(prefix);

  // Update the PETSc single flags
  for (const auto & option : petsc_flags)
  {
    checkUserProvidedPetscOption(option, param_object);

    const std::string & string_option = option.name();

    if (option == "-log_summary" || option == "-log_view")
      mooseError("The PETSc option \"-log_summary\" or \"-log_view\" can only be used on the "
                 "command line.  Please "
                 "remove it from the input file");

    // Warn about superseded PETSc options (Note: -snes is not a REAL option, but people used it in
    // their input files)
    else
    {
      std::string help_string;
      if (option == "-snes" || option == "-snes_mf" || option == "-snes_mf_operator")
        help_string = "Please set the solver type through \"solve_type\".";
      else if (option == "-ksp_monitor")
        help_string = "Please use \"Outputs/print_linear_residuals=true\"";

      if (help_string != "")
        mooseWarning("The PETSc option ",
                     string_option,
                     " should not be used directly in a MOOSE input file. ",
                     help_string);
    }

    // Update the stored items, but do not create duplicates
    const std::string prefixed_option = prefix + string_option.substr(1);
    if (!po.flags.isValueSet(prefixed_option))
    {
      po.flags.setAdditionalValue(prefixed_option);
      po.user_set_options.setAdditionalValue(prefixed_option);
    }
  }
}

addPetscOptionsFromCommandline()

void Moose::PetscSupport::addPetscOptionsFromCommandline

(

)

Definition at line 233 of file PetscSupport.C.

Referenced by petscSetOptionsHelper(), and Moose::SlepcSupport::slepcSetOptions().

{
  // commandline options always win
  // the options from a user commandline will overwrite the existing ones if any conflicts
  { // Get any options specified on the command-line
    int argc;
    char ** args;

    LibmeshPetscCallA(PETSC_COMM_WORLD, PetscGetArgs(&argc, &args));
#if PETSC_VERSION_LESS_THAN(3, 7, 0)
    LibmeshPetscCallA(PETSC_COMM_WORLD, PetscOptionsInsert(&argc, &args, NULL));
#else
    LibmeshPetscCallA(PETSC_COMM_WORLD,
                      PetscOptionsInsert(LIBMESH_PETSC_NULLPTR, &argc, &args, NULL));
#endif
  }
}

addPetscPairsToPetscOptions()

void Moose::PetscSupport::addPetscPairsToPetscOptions	(	const std::vector< std::pair< MooseEnumItem, std::string >> &	petsc_pair_options,
		const unsigned int	mesh_dimension,
		const std::string &	prefix,
		const ParallelParamObject &	param_object,
		PetscOptions &	petsc_options
	)

Populate name and value pairs in a given PetscOptions object using vectors of input arguments.

Parameters

petsc_pair_options	Option-value pairs of petsc settings
mesh_dimension	The mesh dimension, needed for multigrid settings
prefix	The prefix to add to the user provided petsc_flags
param_object	The ParallelParamObject adding the PETSc options
petsc_options	Data structure which handles petsc options within moose

Definition at line 699 of file PetscSupport.C.

Referenced by PhysicsBase::addPetscPairsToPetscOptions(), and storePetscOptions().

{
  checkPrefix(prefix);

  // Setup the name value pairs
  bool boomeramg_found = false;
  bool strong_threshold_found = false;
#if !PETSC_VERSION_LESS_THAN(3, 7, 0)
  bool superlu_dist_found = false;
  bool fact_pattern_found = false;
  bool tiny_pivot_found = false;
#endif
  std::string pc_description = "";
#if !PETSC_VERSION_LESS_THAN(3, 12, 0)
  // If users use HMG, we would like to set
  bool hmg_found = false;
  bool matptap_found = false;
  bool hmg_strong_threshold_found = false;
#endif
  std::vector<std::pair<std::string, std::string>> new_options;

  for (const auto & [option_name, option_value] : petsc_pair_options)
  {
    checkUserProvidedPetscOption(option_name, param_object);

    new_options.clear();
    const std::string prefixed_option_name =
        prefix + static_cast<const std::string &>(option_name).substr(1);

    // Do not add duplicate settings
    if (auto it =
            MooseUtils::findPair(po.pairs, po.pairs.begin(), prefixed_option_name, MooseUtils::Any);
        it == po.pairs.end())
    {
#if !PETSC_VERSION_LESS_THAN(3, 9, 0)
      if (option_name == "-pc_factor_mat_solver_package")
        new_options.emplace_back(prefix + "pc_factor_mat_solver_type", option_value);
#else
      if (option_name == "-pc_factor_mat_solver_type")
        new_options.push_back(prefix + "pc_factor_mat_solver_package", option_value);
#endif

      // Look for a pc description
      if (option_name == "-pc_type" || option_name == "-pc_sub_type" ||
          option_name == "-pc_hypre_type")
        pc_description += option_value + ' ';

#if !PETSC_VERSION_LESS_THAN(3, 12, 0)
      if (option_name == "-pc_type" && option_value == "hmg")
        hmg_found = true;

        // MPIAIJ for PETSc 3.12.0: -matptap_via
        // MAIJ for PETSc 3.12.0: -matmaijptap_via
        // MPIAIJ for PETSc 3.13 to 3.16: -matptap_via, -matproduct_ptap_via
        // MAIJ for PETSc 3.13 to 3.16: -matproduct_ptap_via
        // MPIAIJ for PETSc 3.17 and higher: -matptap_via, -mat_product_algorithm
        // MAIJ for PETSc 3.17 and higher: -mat_product_algorithm
#if !PETSC_VERSION_LESS_THAN(3, 17, 0)
      if (hmg_found && (option_name == "-matptap_via" || option_name == "-matmaijptap_via" ||
                        option_name == "-matproduct_ptap_via"))
        new_options.emplace_back(prefix + "mat_product_algorithm", option_value);
#elif !PETSC_VERSION_LESS_THAN(3, 13, 0)
      if (hmg_found && (option_name == "-matptap_via" || option_name == "-matmaijptap_via"))
        new_options.emplace_back(prefix + "matproduct_ptap_via", option_value);
#else
      if (hmg_found && (option_name == "-matproduct_ptap_via"))
      {
        new_options.emplace_back(prefix + "matptap_via", option_value);
        new_options.emplace_back(prefix + "matmaijptap_via", option_value);
      }
#endif

      if (option_name == "-matptap_via" || option_name == "-matmaijptap_via" ||
          option_name == "-matproduct_ptap_via" || option_name == "-mat_product_algorithm")
        matptap_found = true;

      // For 3D problems, we need to set this 0.7
      if (option_name == "-hmg_inner_pc_hypre_boomeramg_strong_threshold")
        hmg_strong_threshold_found = true;
#endif
      // This special case is common enough that we'd like to handle it for the user.
      if (option_name == "-pc_hypre_type" && option_value == "boomeramg")
        boomeramg_found = true;
      if (option_name == "-pc_hypre_boomeramg_strong_threshold")
        strong_threshold_found = true;
#if !PETSC_VERSION_LESS_THAN(3, 7, 0)
      if ((option_name == "-pc_factor_mat_solver_package" ||
           option_name == "-pc_factor_mat_solver_type") &&
          option_value == "superlu_dist")
        superlu_dist_found = true;
      if (option_name == "-mat_superlu_dist_fact")
        fact_pattern_found = true;
      if (option_name == "-mat_superlu_dist_replacetinypivot")
        tiny_pivot_found = true;
#endif

      if (!new_options.empty())
      {
        std::copy(new_options.begin(), new_options.end(), std::back_inserter(po.pairs));
        for (const auto & option : new_options)
          po.user_set_options.setAdditionalValue(option.first);
      }
      else
      {
        po.pairs.push_back(std::make_pair(prefixed_option_name, option_value));
        po.user_set_options.setAdditionalValue(prefixed_option_name);
      }
    }
    else
    {
      do
      {
        it->second = option_value;
        it = MooseUtils::findPair(po.pairs, std::next(it), prefixed_option_name, MooseUtils::Any);
      } while (it != po.pairs.end());
    }
  }

  // When running a 3D mesh with boomeramg, it is almost always best to supply a strong threshold
  // value. We will provide that for the user here if they haven't supplied it themselves.
  if (boomeramg_found && !strong_threshold_found && mesh_dimension == 3)
  {
    po.pairs.emplace_back(prefix + "pc_hypre_boomeramg_strong_threshold", "0.7");
    pc_description += "strong_threshold: 0.7 (auto)";
  }

#if !PETSC_VERSION_LESS_THAN(3, 12, 0)
  if (hmg_found && !hmg_strong_threshold_found && mesh_dimension == 3)
  {
    po.pairs.emplace_back(prefix + "hmg_inner_pc_hypre_boomeramg_strong_threshold", "0.7");
    pc_description += "strong_threshold: 0.7 (auto)";
  }

  // Default PETSc PtAP takes too much memory, and it is not quite useful
  // Let us switch to use new algorithm
  if (hmg_found && !matptap_found)
  {
#if !PETSC_VERSION_LESS_THAN(3, 17, 0)
    po.pairs.emplace_back(prefix + "mat_product_algorithm", "allatonce");
#elif !PETSC_VERSION_LESS_THAN(3, 13, 0)
    po.pairs.emplace_back(prefix + "matproduct_ptap_via", "allatonce");
#else
    po.pairs.emplace_back(prefix + "matptap_via", "allatonce");
    po.pairs.emplace_back(prefix + "matmaijptap_via", "allatonce");
#endif
  }
#endif

#if !PETSC_VERSION_LESS_THAN(3, 7, 0)
  // In PETSc-3.7.{0--4}, there is a bug when using superlu_dist, and we have to use
  // SamePattern_SameRowPerm, otherwise we use whatever we have in PETSc
  if (superlu_dist_found && !fact_pattern_found)
  {
    po.pairs.emplace_back(prefix + "mat_superlu_dist_fact",
#if PETSC_VERSION_LESS_THAN(3, 7, 5)
                          "SamePattern_SameRowPerm");
    pc_description += "mat_superlu_dist_fact: SamePattern_SameRowPerm ";
#else
                          "SamePattern");
    pc_description += "mat_superlu_dist_fact: SamePattern ";
#endif
  }

  // restore this superlu  option
  if (superlu_dist_found && !tiny_pivot_found)
  {
    po.pairs.emplace_back(prefix + "mat_superlu_dist_replacetinypivot", "1");
    pc_description += " mat_superlu_dist_replacetinypivot: true ";
  }
#endif
  // Set Preconditioner description
  po.pc_description += pc_description;
}

checkUserProvidedPetscOption()

template<typename T >

void Moose::PetscSupport::checkUserProvidedPetscOption	(	const T &	option,
		const ParallelParamObject &	param_object
	)

Definition at line 615 of file PetscSupport.C.

Referenced by addPetscFlagsToPetscOptions(), and addPetscPairsToPetscOptions().

{
  const auto & string_option = static_cast<const std::string &>(option);
  if (string_option[0] != '-')
    param_object.mooseError("PETSc option '", string_option, "' does not begin with '-'");
}

colorAdjacencyMatrix()

void Moose::PetscSupport::colorAdjacencyMatrix	(	PetscScalar *	adjacency_matrix,
		unsigned int	size,
		unsigned int	colors,
		std::vector< unsigned int > &	vertex_colors,
		const char *	coloring_algorithm
	)

This method takes an adjacency matrix, and a desired number of colors and applies a graph coloring algorithm to produce a coloring.

The coloring is returned as a vector of unsigned integers indicating which color or group each vextex in the adjacency matrix belongs to.

Definition at line 1100 of file PetscSupport.C.

{
  // Mat A will be a dense matrix from the incoming data structure
  Mat A;
  LibmeshPetscCallA(PETSC_COMM_SELF, MatCreate(PETSC_COMM_SELF, &A));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatSetSizes(A, size, size, size, size));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatSetType(A, MATSEQDENSE));
  // PETSc requires a non-const data array to populate the matrix
  LibmeshPetscCallA(PETSC_COMM_SELF, MatSeqDenseSetPreallocation(A, adjacency_matrix));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY));

  // Convert A to a sparse matrix
#if PETSC_VERSION_LESS_THAN(3, 7, 0)
  LibmeshPetscCallA(PETSC_COMM_SELF, MatConvert(A, MATAIJ, MAT_REUSE_MATRIX, &A));
#else
  LibmeshPetscCallA(PETSC_COMM_SELF, MatConvert(A, MATAIJ, MAT_INPLACE_MATRIX, &A));
#endif

  ISColoring iscoloring;
  MatColoring mc;
  LibmeshPetscCallA(PETSC_COMM_SELF, MatColoringCreate(A, &mc));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatColoringSetType(mc, coloring_algorithm));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatColoringSetMaxColors(mc, static_cast<PetscInt>(colors)));

  // Petsc normally colors by distance two (neighbors of neighbors), we just want one
  LibmeshPetscCallA(PETSC_COMM_SELF, MatColoringSetDistance(mc, 1));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatColoringSetFromOptions(mc));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatColoringApply(mc, &iscoloring));

  PetscInt nn;
  IS * is;
#if PETSC_RELEASE_LESS_THAN(3, 12, 0)
  LibmeshPetscCallA(PETSC_COMM_SELF, ISColoringGetIS(iscoloring, &nn, &is));
#else
  LibmeshPetscCallA(PETSC_COMM_SELF, ISColoringGetIS(iscoloring, PETSC_USE_POINTER, &nn, &is));
#endif

  if (nn > static_cast<PetscInt>(colors))
    throw std::runtime_error("Not able to color with designated number of colors");

  for (int i = 0; i < nn; i++)
  {
    PetscInt isize;
    const PetscInt * indices;
    LibmeshPetscCallA(PETSC_COMM_SELF, ISGetLocalSize(is[i], &isize));
    LibmeshPetscCallA(PETSC_COMM_SELF, ISGetIndices(is[i], &indices));
    for (int j = 0; j < isize; j++)
    {
      mooseAssert(indices[j] < static_cast<PetscInt>(vertex_colors.size()), "Index out of bounds");
      vertex_colors[indices[j]] = i;
    }
    LibmeshPetscCallA(PETSC_COMM_SELF, ISRestoreIndices(is[i], &indices));
  }

  LibmeshPetscCallA(PETSC_COMM_SELF, MatDestroy(&A));
  LibmeshPetscCallA(PETSC_COMM_SELF, MatColoringDestroy(&mc));
  LibmeshPetscCallA(PETSC_COMM_SELF, ISColoringDestroy(&iscoloring));
}

dontAddCommonKSPOptions()

void Moose::PetscSupport::dontAddCommonKSPOptions

(

FEProblemBase &

fe_problem

)

Function to ensure that common KSP options are not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line.

Definition at line 1184 of file PetscSupport.C.

{
  auto & petsc_options = fe_problem.getPetscOptions();
  for (const auto & flag : getCommonKSPFlags().getNames())
    dontAddPetscFlag(flag, petsc_options);
  for (const auto & key : getCommonKSPKeys().getNames())
    dontAddPetscFlag(key, petsc_options);
}

dontAddCommonSNESOptions()

void Moose::PetscSupport::dontAddCommonSNESOptions

(

FEProblemBase &

fe_problem

)

Function to ensure that common SNES options are not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line.

Definition at line 1194 of file PetscSupport.C.

Referenced by ExplicitTimeIntegrator::ExplicitTimeIntegrator().

{
  auto & petsc_options = fe_problem.getPetscOptions();
  for (const auto & flag : getCommonSNESFlags().getNames())
    if (!petsc_options.dont_add_these_options.contains(flag))
      petsc_options.dont_add_these_options.setAdditionalValue(flag);
  for (const auto & key : getCommonSNESKeys().getNames())
    if (!petsc_options.dont_add_these_options.contains(key))
      petsc_options.dont_add_these_options.setAdditionalValue(key);
}

dontAddLinearConvergedReason()

void Moose::PetscSupport::dontAddLinearConvergedReason

(

FEProblemBase &

fe_problem

)

Function to ensure that -ksp_converged_reason is not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line.

Definition at line 1178 of file PetscSupport.C.

Referenced by CommonOutputAction::act().

{
  dontAddPetscFlag("-ksp_converged_reason", fe_problem.getPetscOptions());
}

dontAddNonlinearConvergedReason()

void Moose::PetscSupport::dontAddNonlinearConvergedReason

(

FEProblemBase &

fe_problem

)

Function to ensure that -snes_converged_reason is not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line.

Definition at line 1172 of file PetscSupport.C.

Referenced by CommonOutputAction::act().

{
  dontAddPetscFlag("-snes_converged_reason", fe_problem.getPetscOptions());
}

dontAddPetscFlag()

void Moose::PetscSupport::dontAddPetscFlag	(	const std::string &	flag,
		PetscOptions &	petsc_options
	)

Function to ensure that a particular petsc option is not added to the PetscOptions storage object to be later set unless explicitly specified in input or on the command line.

Definition at line 1165 of file PetscSupport.C.

Referenced by dontAddCommonKSPOptions(), dontAddLinearConvergedReason(), and dontAddNonlinearConvergedReason().

{
  if (!petsc_options.dont_add_these_options.contains(flag))
    petsc_options.dont_add_these_options.setAdditionalValue(flag);
}

getCommonKSPFlags()

MultiMooseEnum Moose::PetscSupport::getCommonKSPFlags

(

)

A helper function to produce a MultiMooseEnum with commonly used PETSc ksp single options (flags)

Definition at line 931 of file PetscSupport.C.

Referenced by dontAddCommonKSPOptions(), and getCommonPetscFlags().

{
  return MultiMooseEnum(
      "-ksp_converged_reason -ksp_gmres_modifiedgramschmidt -ksp_monitor", "", true);
}

getCommonKSPKeys()

MultiMooseEnum Moose::PetscSupport::getCommonKSPKeys

(

)

A helper function to produce a MultiMooseEnum with commonly used PETSc ksp option names (keys)

Definition at line 956 of file PetscSupport.C.

Referenced by dontAddCommonKSPOptions(), and getCommonPetscKeys().

{
  return MultiMooseEnum("-ksp_atol -ksp_gmres_restart -ksp_max_it -ksp_pc_side -ksp_rtol "
                        "-ksp_type -sub_ksp_type",
                        "",
                        true);
}

getCommonPetscFlags()

MultiMooseEnum Moose::PetscSupport::getCommonPetscFlags

(

)

A helper function to produce a MultiMooseEnum with commonly used PETSc single options (flags)

Definition at line 938 of file PetscSupport.C.

Referenced by getPetscValidParams(), AddFieldSplitAction::validParams(), and Split::validParams().

{
  auto options = MultiMooseEnum("-dm_moose_print_embedding -dm_view", "", true);
  options.addValidName(getCommonKSPFlags());
  options.addValidName(getCommonSNESFlags());
  return options;
}

getCommonPetscKeys()

MultiMooseEnum Moose::PetscSupport::getCommonPetscKeys

(

)

A helper function to produce a MultiMooseEnum with commonly used PETSc iname options (keys in key-value pairs)

Definition at line 964 of file PetscSupport.C.

Referenced by getPetscValidParams(), AddFieldSplitAction::validParams(), and Split::validParams().

{
  auto options = MultiMooseEnum("-mat_fd_coloring_err -mat_fd_type -mat_mffd_type "
                                "-pc_asm_overlap -pc_factor_levels "
                                "-pc_factor_mat_ordering_type -pc_hypre_boomeramg_grid_sweeps_all "
                                "-pc_hypre_boomeramg_max_iter "
                                "-pc_hypre_boomeramg_strong_threshold -pc_hypre_type -pc_type "
                                "-sub_pc_type",
                                "",
                                true);
  options.addValidName(getCommonKSPKeys());
  options.addValidName(getCommonSNESKeys());
  return options;
}

getCommonSNESFlags()

MultiMooseEnum Moose::PetscSupport::getCommonSNESFlags

(

)

A helper function to produce a MultiMooseEnum with commonly used PETSc snes single options (flags)

Definition at line 920 of file PetscSupport.C.

Referenced by dontAddCommonSNESOptions(), and getCommonPetscFlags().

{
  return MultiMooseEnum(
      "-ksp_monitor_snes_lg -snes_ksp_ew -ksp_snes_ew -snes_converged_reason "
      "-snes_ksp -snes_linesearch_monitor -snes_mf -snes_mf_operator -snes_monitor "
      "-snes_test_display -snes_view -snes_monitor_cancel",
      "",
      true);
}

getCommonSNESKeys()

MultiMooseEnum Moose::PetscSupport::getCommonSNESKeys

(

)

A helper function to produce a MultiMooseEnum with commonly used PETSc snes option names (keys)

Definition at line 947 of file PetscSupport.C.

Referenced by dontAddCommonSNESOptions(), and getCommonPetscKeys().

{
  return MultiMooseEnum("-snes_atol -snes_linesearch_type -snes_ls -snes_max_it -snes_rtol "
                        "-snes_divergence_tolerance -snes_type",
                        "",
                        true);
}

getPetscKSPNormType()

KSPNormType Moose::PetscSupport::getPetscKSPNormType

(

Moose::MooseKSPNormType

kspnorm

)

Definition at line 375 of file PetscSupport.C.

Referenced by petscSetDefaultKSPNormType().

{
  switch (kspnorm)
  {
    case Moose::KSPN_NONE:
      return KSP_NORM_NONE;
    case Moose::KSPN_PRECONDITIONED:
      return KSP_NORM_PRECONDITIONED;
    case Moose::KSPN_UNPRECONDITIONED:
      return KSP_NORM_UNPRECONDITIONED;
    case Moose::KSPN_NATURAL:
      return KSP_NORM_NATURAL;
    case Moose::KSPN_DEFAULT:
      return KSP_NORM_DEFAULT;
    default:
      mooseError("Unknown KSP norm type requested.");
      break;
  }
}

getPetscPCSide()

PCSide Moose::PetscSupport::getPetscPCSide

(

Moose::PCSideType

pcs

)

Definition at line 358 of file PetscSupport.C.

Referenced by petscSetDefaultPCSide().

{
  switch (pcs)
  {
    case Moose::PCS_LEFT:
      return PC_LEFT;
    case Moose::PCS_RIGHT:
      return PC_RIGHT;
    case Moose::PCS_SYMMETRIC:
      return PC_SYMMETRIC;
    default:
      mooseError("Unknown PC side requested.");
      break;
  }
}

getPetscValidLineSearches()

std::set< std::string > Moose::PetscSupport::getPetscValidLineSearches

(

)

Returns the valid petsc line search options as a set of strings.

Definition at line 879 of file PetscSupport.C.

Referenced by FEProblemSolve::validParams().

{
  return {"default", "shell", "none", "basic", "l2", "bt", "cp"};
}

getPetscValidParams()

InputParameters Moose::PetscSupport::getPetscValidParams

(

)

Returns the PETSc options that are common between Executioners and Preconditioners.

Returns

InputParameters object containing the PETSc related parameters

The output of this function should be added to the the parameters object of the overarching class

See also

CreateExecutionerAction

Definition at line 885 of file PetscSupport.C.

Referenced by FEProblemSolve::validParams(), and MoosePreconditioner::validParams().

{
  InputParameters params = emptyInputParameters();

  MooseEnum solve_type("PJFNK JFNK NEWTON FD LINEAR");
  params.addParam<MooseEnum>("solve_type",
                             solve_type,
                             "PJFNK: Preconditioned Jacobian-Free Newton Krylov "
                             "JFNK: Jacobian-Free Newton Krylov "
                             "NEWTON: Full Newton Solve "
                             "FD: Use finite differences to compute Jacobian "
                             "LINEAR: Solving a linear problem");

  MooseEnum mffd_type("wp ds", "wp");
  params.addParam<MooseEnum>("mffd_type",
                             mffd_type,
                             "Specifies the finite differencing type for "
                             "Jacobian-free solve types. Note that the "
                             "default is wp (for Walker and Pernice).");

  params.addParam<MultiMooseEnum>(
      "petsc_options", getCommonPetscFlags(), "Singleton PETSc options");
  params.addParam<MultiMooseEnum>(
      "petsc_options_iname", getCommonPetscKeys(), "Names of PETSc name/value pairs");
  params.addParam<std::vector<std::string>>(
      "petsc_options_value",
      "Values of PETSc name/value pairs (must correspond with \"petsc_options_iname\"");
  params.addParamNamesToGroup("solve_type petsc_options petsc_options_iname petsc_options_value "
                              "mffd_type",
                              "PETSc");

  return params;
}

isSNESVI()

bool Moose::PetscSupport::isSNESVI

(

FEProblemBase &

fe_problem

)

check if SNES type is variational inequalities (VI) solver

Definition at line 980 of file PetscSupport.C.

Referenced by BoundsBase::BoundsBase().

{
  const PetscOptions & petsc = fe_problem.getPetscOptions();

  int argc;
  char ** args;
  LibmeshPetscCallA(fe_problem.comm().get(), PetscGetArgs(&argc, &args));

  std::vector<std::string> cml_arg;
  for (int i = 0; i < argc; i++)
    cml_arg.push_back(args[i]);

  if (MooseUtils::findPair(petsc.pairs, petsc.pairs.begin(), MooseUtils::Any, "vinewtonssls") ==
          petsc.pairs.end() &&
      MooseUtils::findPair(petsc.pairs, petsc.pairs.begin(), MooseUtils::Any, "vinewtonrsls") ==
          petsc.pairs.end() &&
      std::find(cml_arg.begin(), cml_arg.end(), "vinewtonssls") == cml_arg.end() &&
      std::find(cml_arg.begin(), cml_arg.end(), "vinewtonrsls") == cml_arg.end())
    return false;

  return true;
}

outputNorm()

void Moose::PetscSupport::outputNorm	(	libMesh::Real	old_norm,
		libMesh::Real	norm,
		bool	use_color = false
	)

Helper function for outputting the norm values with/without color.

petscLinearMonitor()

PetscErrorCode Moose::PetscSupport::petscLinearMonitor	(	KSP	,
		PetscInt	its,
		PetscReal	rnorm,
		void *	void_ptr
	)

Helper function for displaying the linear residual during PETSC solve.

petscNonlinearConverged()

PetscErrorCode Moose::PetscSupport::petscNonlinearConverged	(	SNES	,
		PetscInt	it,
		PetscReal	,
		PetscReal	,
		PetscReal	,
		SNESConvergedReason *	reason,
		void *	ctx
	)

Definition at line 310 of file PetscSupport.C.

Referenced by petscSetDefaults().

{
  PetscFunctionBegin;
  FEProblemBase & problem = *static_cast<FEProblemBase *>(ctx);

  // execute objects that may be used in convergence check
  problem.execute(EXEC_NONLINEAR_CONVERGENCE);

  // perform the convergence check
  Convergence::MooseConvergenceStatus status;
  if (problem.getFailNextNonlinearConvergenceCheck())
  {
    status = Convergence::MooseConvergenceStatus::DIVERGED;
    problem.resetFailNextNonlinearConvergenceCheck();
  }
  else
  {
    auto & convergence = problem.getConvergence(
        problem.getNonlinearConvergenceNames()[problem.currentNonlinearSystem().number()]);
    status = convergence.checkConvergence(it);
  }

  // convert convergence status to PETSc converged reason
  switch (status)
  {
    case Convergence::MooseConvergenceStatus::ITERATING:
      *reason = SNES_CONVERGED_ITERATING;
      break;

    case Convergence::MooseConvergenceStatus::CONVERGED:
      *reason = SNES_CONVERGED_FNORM_ABS;
      break;

    case Convergence::MooseConvergenceStatus::DIVERGED:
      *reason = SNES_DIVERGED_DTOL;
      break;
  }

  PetscFunctionReturn(PETSC_SUCCESS);
}

petscSetDefaultKSPNormType()

void Moose::PetscSupport::petscSetDefaultKSPNormType	(	FEProblemBase &	problem,
		KSP	ksp
	)

Set norm type.

Definition at line 396 of file PetscSupport.C.

Referenced by Moose::SlepcSupport::mooseSlepcEPSSNESKSPSetPCSide(), and petscSetKSPDefaults().

{
  for (const auto i : make_range(problem.numSolverSystems()))
  {
    SolverSystem & sys = problem.getSolverSystem(i);
    LibmeshPetscCallA(problem.comm().get(),
                      KSPSetNormType(ksp, getPetscKSPNormType(sys.getMooseKSPNormType())));
  }
}

petscSetDefaultPCSide()

void Moose::PetscSupport::petscSetDefaultPCSide	(	FEProblemBase &	problem,
		KSP	ksp
	)

Setup which side we want to apply preconditioner.

Definition at line 407 of file PetscSupport.C.

Referenced by Moose::SlepcSupport::mooseSlepcEPSSNESKSPSetPCSide(), and petscSetKSPDefaults().

{
  for (const auto i : make_range(problem.numSolverSystems()))
  {
    SolverSystem & sys = problem.getSolverSystem(i);

    // PETSc 3.2.x+
    if (sys.getPCSide() != Moose::PCS_DEFAULT)
      LibmeshPetscCallA(problem.comm().get(), KSPSetPCSide(ksp, getPetscPCSide(sys.getPCSide())));
  }
}

petscSetDefaults()

void Moose::PetscSupport::petscSetDefaults

(

FEProblemBase &

problem

)

Sets the default options for PETSc.

Definition at line 442 of file PetscSupport.C.

Referenced by FEProblemBase::initPetscOutputAndSomeSolverSettings(), and Moose::setSolverDefaults().

{
  // We care about both nonlinear and linear systems when setting the SNES prefix because
  // SNESSetOptionsPrefix will also set its KSP prefix which could compete with linear system KSPs
  for (const auto nl_index : make_range(problem.numNonlinearSystems()))
  {
    NonlinearSystemBase & nl = problem.getNonlinearSystemBase(nl_index);

    //
    // prefix system matrices
    //

    auto & lm_sys = nl.system();
    // This check is necessary because we still have at least the system matrix lying around even
    // when doing matrix-free, but critically even though the libmesh object(s) exist, the wrapped
    // PETSc Mat(s) do not
    if (problem.solverParams(nl_index)._type != Moose::ST_JFNK)
      for (auto & [mat_name, mat] : as_range(lm_sys.matrices_begin(), lm_sys.matrices_end()))
      {
        libmesh_ignore(mat_name);
        if (auto * const petsc_mat = dynamic_cast<PetscMatrixBase<Number> *>(mat.get()); petsc_mat)
        {
          LibmeshPetscCallA(nl.comm().get(),
                            MatSetOptionsPrefix(petsc_mat->mat(), (nl.name() + "_").c_str()));
          // We should call this here to ensure that options from the command line are properly
          // applied
          LibmeshPetscCallA(nl.comm().get(), MatSetFromOptions(petsc_mat->mat()));
        }
      }

    //
    // prefix SNES/KSP
    //

    // dig out PETSc solver
    auto * const petsc_solver = cast_ptr<PetscNonlinearSolver<Number> *>(nl.nonlinearSolver());
    const char * snes_prefix = nullptr;
    std::string snes_prefix_str;
    if (nl.system().prefix_with_name())
    {
      snes_prefix_str = nl.system().prefix();
      snes_prefix = snes_prefix_str.c_str();
    }
    SNES snes = petsc_solver->snes(snes_prefix);
    KSP ksp;
    LibmeshPetscCallA(nl.comm().get(), SNESGetKSP(snes, &ksp));

    LibmeshPetscCallA(nl.comm().get(), SNESSetMaxLinearSolveFailures(snes, 1000000));

    LibmeshPetscCallA(nl.comm().get(), SNESSetCheckJacobianDomainError(snes, PETSC_TRUE));

    // In 3.0.0, the context pointer must actually be used, and the
    // final argument to KSPSetConvergenceTest() is a pointer to a
    // routine for destroying said private data context.  In this case,
    // we use the default context provided by PETSc in addition to
    // a few other tests.
    {
      LibmeshPetscCallA(
          nl.comm().get(),
          SNESSetConvergenceTest(snes, petscNonlinearConverged, &problem, LIBMESH_PETSC_NULLPTR));
    }

    petscSetKSPDefaults(problem, ksp);
  }

  for (auto sys_index : make_range(problem.numLinearSystems()))
  {
    // dig out PETSc solver
    LinearSystem & lin_sys = problem.getLinearSystem(sys_index);
    PetscLinearSolver<Number> * petsc_solver = dynamic_cast<PetscLinearSolver<Number> *>(
        lin_sys.linearImplicitSystem().get_linear_solver());
    KSP ksp = petsc_solver->ksp();
    petscSetKSPDefaults(problem, ksp);
  }
}

petscSetKSPDefaults()

void Moose::PetscSupport::petscSetKSPDefaults	(	FEProblemBase &	problem,
		KSP	ksp
	)

Set the default options for a KSP.

Definition at line 420 of file PetscSupport.C.

Referenced by petscSetDefaults(), and setLinearSolverDefaults().

{
  auto & es = problem.es();

  PetscReal rtol = es.parameters.get<Real>("linear solver tolerance");
  PetscReal atol = es.parameters.get<Real>("linear solver absolute tolerance");

  // MOOSE defaults this to -1 for some dumb reason
  if (atol < 0)
    atol = 1e-50;

  PetscReal maxits = es.parameters.get<unsigned int>("linear solver maximum iterations");

  // 1e100 is because we don't use divtol currently
  LibmeshPetscCallA(problem.comm().get(), KSPSetTolerances(ksp, rtol, atol, 1e100, maxits));

  petscSetDefaultPCSide(problem, ksp);

  petscSetDefaultKSPNormType(problem, ksp);
}

petscSetOptions() [1/2]

void Moose::PetscSupport::petscSetOptions	(	const PetscOptions &	po,
		const SolverParams &	solver_params,
		FEProblemBase *const	problem = nullptr
	)

A function for setting the PETSc options in PETSc from the options supplied to MOOSE.

This interface function should be used when setting options on a per-system basis

Definition at line 272 of file PetscSupport.C.

Referenced by Moose::SlepcSupport::slepcSetOptions(), FEProblemBase::solve(), and FEProblemBase::solveLinearSystem().

{
  PetscCallAbort(PETSC_COMM_WORLD, PetscOptionsClear(LIBMESH_PETSC_NULLPTR));
  setSolverOptions(solver_params, po.dont_add_these_options);
  petscSetOptionsHelper(po, problem);
}

petscSetOptions() [2/2]

void Moose::PetscSupport::petscSetOptions	(	const PetscOptions &	po,
		const std::vector< SolverParams > &	solver_params,
		FEProblemBase *	problem
	)

A function for setting the PETSc options in PETSc from the options supplied to MOOSE.

This interface function should be used for setting options all at once for all systems in a multi-system context. Note that PetscOptions is not a vector because the options database has prefixes for the different systems

Definition at line 282 of file PetscSupport.C.

{
  PetscCallAbort(PETSC_COMM_WORLD, PetscOptionsClear(LIBMESH_PETSC_NULLPTR));
  for (const auto & solver_params : solver_params_vec)
    setSolverOptions(solver_params, po.dont_add_these_options);
  petscSetOptionsHelper(po, problem);
}

petscSetOptionsHelper()

void Moose::PetscSupport::petscSetOptionsHelper	(	const PetscOptions &	po,
		FEProblemBase *const	problem
	)

Definition at line 252 of file PetscSupport.C.

Referenced by petscSetOptions().

{
  // Add any additional options specified in the input file
  for (const auto & flag : po.flags)
    // Need to use name method here to pass a str instead of an EnumItem because
    // we don't care if the id attributes match
    if (!po.dont_add_these_options.contains(flag.name()) ||
        po.user_set_options.contains(flag.name()))
      setSinglePetscOption(flag.rawName().c_str());

  // Add option pairs
  for (auto & option : po.pairs)
    if (!po.dont_add_these_options.contains(option.first) ||
        po.user_set_options.contains(option.first))
      setSinglePetscOption(option.first, option.second, problem);

  addPetscOptionsFromCommandline();
}

petscSetupDM()

void Moose::PetscSupport::petscSetupDM	(	NonlinearSystemBase &	nl,
		const std::string &	dm_name
	)

Setup the PETSc DM object.

Definition at line 190 of file PetscSupport.C.

Referenced by NonlinearSystemBase::setupDM().

{
  PetscBool ismoose;
  DM dm = LIBMESH_PETSC_NULLPTR;

  // Initialize the part of the DM package that's packaged with Moose; in the PETSc source tree this
  // call would be in DMInitializePackage()
  LibmeshPetscCallA(nl.comm().get(), DMMooseRegisterAll());
  // Create and set up the DM that will consume the split options and deal with block matrices.
  PetscNonlinearSolver<Number> * petsc_solver =
      dynamic_cast<PetscNonlinearSolver<Number> *>(nl.nonlinearSolver());
  const char * snes_prefix = nullptr;
  std::string snes_prefix_str;
  if (nl.system().prefix_with_name())
  {
    snes_prefix_str = nl.system().prefix();
    snes_prefix = snes_prefix_str.c_str();
  }
  SNES snes = petsc_solver->snes(snes_prefix);
  // if there exists a DMMoose object, not to recreate a new one
  LibmeshPetscCallA(nl.comm().get(), SNESGetDM(snes, &dm));
  if (dm)
  {
    LibmeshPetscCallA(nl.comm().get(), PetscObjectTypeCompare((PetscObject)dm, DMMOOSE, &ismoose));
    if (ismoose)
      return;
  }
  LibmeshPetscCallA(nl.comm().get(), DMCreateMoose(nl.comm().get(), nl, dm_name, &dm));
  LibmeshPetscCallA(nl.comm().get(), DMSetFromOptions(dm));
  LibmeshPetscCallA(nl.comm().get(), DMSetUp(dm));
  LibmeshPetscCallA(nl.comm().get(), SNESSetDM(snes, dm));
  LibmeshPetscCallA(nl.comm().get(), DMDestroy(&dm));
  // We temporarily comment out this updating function because
  // we lack an approach to check if the problem
  // structure has been changed from the last iteration.
  // The indices will be rebuilt for every timestep.
  // TODO: figure out a way to check the structure changes of the
  // matrix
  // ierr = SNESSetUpdate(snes,SNESUpdateDMMoose);
  // CHKERRABORT(nl.comm().get(),ierr);
}

petscSetupOutput()

PetscErrorCode Moose::PetscSupport::petscSetupOutput

(

CommandLine *

cmd_line

)

Definition at line 293 of file PetscSupport.C.

Referenced by MooseApp::executeExecutioner().

{
  PetscFunctionBegin;
  char code[10] = {45, 45, 109, 111, 111, 115, 101};
  const std::vector<std::string> argv = cmd_line->getArguments();
  for (const auto & arg : argv)
  {
    if (arg.compare(code) == 0)
    {
      Console::petscSetupOutput();
      break;
    }
  }
  PetscFunctionReturn(PETSC_SUCCESS);
}

processSingletonMooseWrappedOptions()

void Moose::PetscSupport::processSingletonMooseWrappedOptions	(	FEProblemBase &	fe_problem,
		const InputParameters &	params
	)

Process some MOOSE-wrapped PETSc options.

These options have no support for multi-system as indicated by the fact that this function takes no prefix nor solver system argument

Definition at line 519 of file PetscSupport.C.

Referenced by MoosePreconditioner::MoosePreconditioner(), and storePetscOptions().

{
  setSolveTypeFromParams(fe_problem, params);
  setLineSearchFromParams(fe_problem, params);
  setMFFDTypeFromParams(fe_problem, params);
}

setConvergedReasonFlags()

void Moose::PetscSupport::setConvergedReasonFlags	(	FEProblemBase &	fe_problem,
		const std::string &	prefix
	)

Set flags that will instruct the user on the reason their simulation diverged from PETSc's perspective.

Definition at line 676 of file PetscSupport.C.

Referenced by FEProblemSolve::FEProblemSolve().

{
  checkPrefix(prefix);
  libmesh_ignore(fe_problem); // avoid unused warnings for old PETSc

#if !PETSC_VERSION_LESS_THAN(3, 14, 0)
  // the boolean in these pairs denote whether the user has specified any of the reason flags in the
  // input file
  std::array<std::string, 2> reason_flags = {{"snes_converged_reason", "ksp_converged_reason"}};

  auto & po = fe_problem.getPetscOptions();

  for (const auto & reason_flag : reason_flags)
    if (!po.flags.isValueSet(prefix + reason_flag) &&
        (std::find_if(po.pairs.begin(),
                      po.pairs.end(),
                      [&reason_flag, &prefix](auto & pair)
                      { return pair.first == (prefix + reason_flag); }) == po.pairs.end()))
      po.pairs.emplace_back(prefix + reason_flag, "::failed");
#endif
}

setLinearSolverDefaults()

template<typename T >

void Moose::PetscSupport::setLinearSolverDefaults	(	FEProblemBase &	problem,
		libMesh::LinearSolver< T > &	linear_solver
	)

Set the defaults for a libMesh LinearSolver.

Used in explicit solves

Definition at line 93 of file PetscSupport.h.

Referenced by ExplicitTimeIntegrator::meshChanged().

{
  petscSetKSPDefaults(problem,
                      libMesh::cast_ref<libMesh::PetscLinearSolver<T> &>(linear_solver).ksp());
}

setLineSearchFromParams()

void Moose::PetscSupport::setLineSearchFromParams	(	FEProblemBase &	fe_problem,
		const InputParameters &	params
	)

Sets the FE problem's line search from the input params.

Definition at line 565 of file PetscSupport.C.

Referenced by processSingletonMooseWrappedOptions().

{
  // Note: Options set in the Preconditioner block will override those set in the Executioner block
  if (params.isParamValid("line_search"))
  {
    const auto & line_search = params.get<MooseEnum>("line_search");
    for (const auto i : make_range(fe_problem.numNonlinearSystems()))
      if (fe_problem.solverParams(i)._line_search == Moose::LS_INVALID || line_search != "default")
      {
        Moose::LineSearchType enum_line_search =
            Moose::stringToEnum<Moose::LineSearchType>(line_search);
        fe_problem.solverParams(i)._line_search = enum_line_search;
        if (enum_line_search == LS_CONTACT || enum_line_search == LS_PROJECT)
        {
          NonlinearImplicitSystem * nl_system = dynamic_cast<NonlinearImplicitSystem *>(
              &fe_problem.getNonlinearSystemBase(i).system());
          if (!nl_system)
            mooseError("You've requested a line search but you must be solving an EigenProblem. "
                       "These two things are not consistent.");
          PetscNonlinearSolver<Real> * petsc_nonlinear_solver =
              dynamic_cast<PetscNonlinearSolver<Real> *>(nl_system->nonlinear_solver.get());
          if (!petsc_nonlinear_solver)
            mooseError("Currently the MOOSE line searches all use Petsc, so you "
                       "must use Petsc as your non-linear solver.");
          petsc_nonlinear_solver->linesearch_object =
              std::make_unique<ComputeLineSearchObjectWrapper>(fe_problem);
        }
      }
  }
}

setMFFDTypeFromParams()

void Moose::PetscSupport::setMFFDTypeFromParams	(	FEProblemBase &	fe_problem,
		const InputParameters &	params
	)

Sets the FE problem's matrix-free finite difference type from the input params.

Definition at line 597 of file PetscSupport.C.

Referenced by processSingletonMooseWrappedOptions().

{
  if (params.isParamValid("mffd_type"))
  {
    const auto & mffd_type = params.get<MooseEnum>("mffd_type");
    for (const auto i : make_range(fe_problem.numNonlinearSystems()))
      fe_problem.solverParams(i)._mffd_type = Moose::stringToEnum<Moose::MffdType>(mffd_type);
  }
}

setSinglePetscOption()

void Moose::PetscSupport::setSinglePetscOption	(	const std::string &	name,
		const std::string &	value = "",
		FEProblemBase *const	problem = nullptr
	)

A wrapper function for dealing with different versions of PetscOptionsSetValue.

This is not generally called from MOOSE code, it is instead intended to be called by stuff in MOOSE::PetscSupport.

Definition at line 1004 of file PetscSupport.C.

Referenced by Moose::SlepcSupport::clearFreeNonlinearPowerIterations(), FEProblemBase::FEProblemBase(), petscSetOptionsHelper(), CommandLine::printUsage(), Moose::SlepcSupport::setEigenProblemOptions(), Moose::SlepcSupport::setEigenSolverOptions(), Moose::SlepcSupport::setFreeNonlinearPowerIterations(), Moose::SlepcSupport::setNewtonPetscOptions(), Moose::SlepcSupport::setNonlinearPowerOptions(), setSinglePetscOptionIfAppropriate(), Moose::SlepcSupport::setSlepcEigenSolverTolerances(), Moose::SlepcSupport::setWhichEigenPairsOptions(), and Moose::SlepcSupport::slepcSetOptions().

{
  static const TIMPI::Communicator comm_world(PETSC_COMM_WORLD);
  const TIMPI::Communicator & comm = problem ? problem->comm() : comm_world;
  LibmeshPetscCallA(comm.get(),
                    PetscOptionsSetValue(LIBMESH_PETSC_NULLPTR,
                                         name.c_str(),
                                         value == "" ? LIBMESH_PETSC_NULLPTR : value.c_str()));
  const auto lower_case_name = MooseUtils::toLower(name);
  auto check_problem = [problem, &lower_case_name]()
  {
    if (!problem)
      mooseError(
          "Setting the option '",
          lower_case_name,
          "' requires passing a 'problem' parameter. Contact a developer of your application "
          "to have them update their code. If in doubt, reach out to the MOOSE team on Github "
          "discussions");
  };

  // Select vector type from user-passed PETSc options
  if (lower_case_name.find("-vec_type") != std::string::npos)
  {
    check_problem();
    for (auto & solver_system : problem->_solver_systems)
    {
      auto & lm_sys = solver_system->system();
      for (auto & [vec_name, vec] : as_range(lm_sys.vectors_begin(), lm_sys.vectors_end()))
      {
        libmesh_ignore(vec_name);
        auto * const petsc_vec = cast_ptr<PetscVector<Number> *>(vec.get());
        LibmeshPetscCallA(comm.get(), VecSetFromOptions(petsc_vec->vec()));
      }
      // The solution vectors aren't included in the system vectors storage
      auto * petsc_vec = cast_ptr<PetscVector<Number> *>(lm_sys.solution.get());
      LibmeshPetscCallA(comm.get(), VecSetFromOptions(petsc_vec->vec()));
      petsc_vec = cast_ptr<PetscVector<Number> *>(lm_sys.current_local_solution.get());
      LibmeshPetscCallA(comm.get(), VecSetFromOptions(petsc_vec->vec()));
    }
  }
  // Select matrix type from user-passed PETSc options
  else if (lower_case_name.find("mat_type") != std::string::npos)
  {
    check_problem();

    bool found_matching_prefix = false;
    for (const auto i : index_range(problem->_solver_systems))
    {
      const auto & solver_sys_name = problem->_solver_sys_names[i];
      if (lower_case_name.find("-" + MooseUtils::toLower(solver_sys_name) + "_mat_type") ==
          std::string::npos)
        continue;

      if (problem->solverParams(i)._type == Moose::ST_JFNK)
        mooseError(
            "Setting option '", lower_case_name, "' is incompatible with a JFNK 'solve_type'");

      auto & lm_sys = problem->_solver_systems[i]->system();
      for (auto & [mat_name, mat] : as_range(lm_sys.matrices_begin(), lm_sys.matrices_end()))
      {
        libmesh_ignore(mat_name);
        if (auto * const petsc_mat = dynamic_cast<PetscMatrixBase<Number> *>(mat.get()); petsc_mat)
        {
#ifdef DEBUG
          const char * mat_prefix;
          LibmeshPetscCallA(comm.get(), MatGetOptionsPrefix(petsc_mat->mat(), &mat_prefix));
          mooseAssert(strcmp(mat_prefix, (solver_sys_name + "_").c_str()) == 0,
                      "We should have prefixed these matrices previously");
#endif
          LibmeshPetscCallA(comm.get(), MatSetFromOptions(petsc_mat->mat()));
        }
      }
      found_matching_prefix = true;
      break;
    }

    if (!found_matching_prefix)
      mooseError("We did not find a matching solver system name for the petsc option '",
                 lower_case_name,
                 "'");
  }
}

setSinglePetscOptionIfAppropriate()

void Moose::PetscSupport::setSinglePetscOptionIfAppropriate	(	const MultiMooseEnum &	dont_add_these_options,
		const std::string &	name,
		const std::string &	value = "",
		FEProblemBase *const	problem = nullptr
	)

Same as setSinglePetscOption, but does not set the option if it doesn't make sense for the current simulation type, e.g.

if name is contained within dont_add_these_options

Definition at line 1090 of file PetscSupport.C.

Referenced by setSolverOptions().

{
  if (!dont_add_these_options.contains(name))
    setSinglePetscOption(name, value, problem);
}

setSolverOptions()

void Moose::PetscSupport::setSolverOptions	(	const SolverParams &	solver_params,
		const MultiMooseEnum &	dont_add_these_options
	)

Definition at line 145 of file PetscSupport.C.

Referenced by petscSetOptions().

{
  // set PETSc options implied by a solve type
  switch (solver_params._type)
  {
    case Moose::ST_PJFNK:
      setSinglePetscOptionIfAppropriate(dont_add_these_options,
                                        solver_params._prefix + "snes_mf_operator");
      setSinglePetscOptionIfAppropriate(dont_add_these_options,
                                        solver_params._prefix + "mat_mffd_type",
                                        stringify(solver_params._mffd_type));
      break;

    case Moose::ST_JFNK:
      setSinglePetscOptionIfAppropriate(dont_add_these_options, solver_params._prefix + "snes_mf");
      setSinglePetscOptionIfAppropriate(dont_add_these_options,
                                        solver_params._prefix + "mat_mffd_type",
                                        stringify(solver_params._mffd_type));
      break;

    case Moose::ST_NEWTON:
      break;

    case Moose::ST_FD:
      setSinglePetscOptionIfAppropriate(dont_add_these_options, solver_params._prefix + "snes_fd");
      break;

    case Moose::ST_LINEAR:
      setSinglePetscOptionIfAppropriate(
          dont_add_these_options, solver_params._prefix + "snes_type", "ksponly");
      setSinglePetscOptionIfAppropriate(dont_add_these_options,
                                        solver_params._prefix + "snes_monitor_cancel");
      break;
  }

  Moose::LineSearchType ls_type = solver_params._line_search;
  if (ls_type == Moose::LS_NONE)
    ls_type = Moose::LS_BASIC;

  if (ls_type != Moose::LS_DEFAULT && ls_type != Moose::LS_CONTACT && ls_type != Moose::LS_PROJECT)
    setSinglePetscOptionIfAppropriate(
        dont_add_these_options, solver_params._prefix + "snes_linesearch_type", stringify(ls_type));
}

setSolveTypeFromParams()

void Moose::PetscSupport::setSolveTypeFromParams	(	FEProblemBase &	fe_problem,
		const InputParameters &	params
	)

Sets the FE problem's solve type from the input params.

Definition at line 552 of file PetscSupport.C.

Referenced by processSingletonMooseWrappedOptions().

{
  // Note: Options set in the Preconditioner block will override those set in the Executioner block
  if (params.isParamValid("solve_type") && !params.isParamValid("_use_eigen_value"))
  {
    // Extract the solve type
    const std::string & solve_type = params.get<MooseEnum>("solve_type");
    for (const auto i : make_range(fe_problem.numNonlinearSystems()))
      fe_problem.solverParams(i)._type = Moose::stringToEnum<Moose::SolveType>(solve_type);
  }
}

storePetscOptions()

void Moose::PetscSupport::storePetscOptions	(	FEProblemBase &	fe_problem,
		const std::string &	prefix,
		const ParallelParamObject &	param_object
	)

Stores the PETSc options supplied from the parameter object on the problem.

Parameters

fe_problem	The problem on which we will store the parameters
prefix	A prefix to apply to all the parameter object's PETSc options. This should either be a single character '-' or a string like "-foo_" where the trailing '_' is required
param_object	The parameter object potentially holding PETSc options String prefixes may be used to select the system the parameters is applied to

Definition at line 527 of file PetscSupport.C.

Referenced by FEProblemSolve::FEProblemSolve(), MoosePreconditioner::MoosePreconditioner(), and Split::setup().

{
  const auto & params = param_object.parameters();
  processSingletonMooseWrappedOptions(fe_problem, params);

  // The parameters contained in the Action
  const auto & petsc_options = params.get<MultiMooseEnum>("petsc_options");
  const auto & petsc_pair_options =
      params.get<MooseEnumItem, std::string>("petsc_options_iname", "petsc_options_value");

  // A reference to the PetscOptions object that contains the settings that will be used in the
  // solve
  auto & po = fe_problem.getPetscOptions();

  // First process the single petsc options/flags
  addPetscFlagsToPetscOptions(petsc_options, prefix, param_object, po);

  // Then process the option-value pairs
  addPetscPairsToPetscOptions(
      petsc_pair_options, fe_problem.mesh().dimension(), prefix, param_object, po);
}

storePetscOptionsFromParams()

void Moose::PetscSupport::storePetscOptionsFromParams	(	FEProblemBase &	fe_problem,
		const InputParameters &	params
	)

Stores the Petsc flags and pair options fron the input params in the given PetscOptions object.

stringify() [1/2]

std::string Moose::PetscSupport::stringify

(

const LineSearchType &

t

)

Definition at line 101 of file PetscSupport.C.

{
  switch (t)
  {
    case LS_BASIC:
      return "basic";
    case LS_DEFAULT:
      return "default";
    case LS_NONE:
      return "none";
    case LS_SHELL:
      return "shell";
    case LS_L2:
      return "l2";
    case LS_BT:
      return "bt";
    case LS_CP:
      return "cp";
    case LS_CONTACT:
      return "contact";
    case LS_PROJECT:
      return "project";
    case LS_INVALID:
      mooseError("Invalid LineSearchType");
  }
  return "";
}

stringify() [2/2]

std::string Moose::PetscSupport::stringify

(

const MffdType &

t

)

Definition at line 130 of file PetscSupport.C.

Referenced by setSolverOptions().

{
  switch (t)
  {
    case MFFD_WP:
      return "wp";
    case MFFD_DS:
      return "ds";
    case MFFD_INVALID:
      mooseError("Invalid MffdType");
  }
  return "";
}