libMesh
Public Member Functions | Static Public Member Functions | Protected Types | Protected Member Functions | Static Protected Attributes | List of all members
A0 Struct Reference

#include <assembly.h>

Inheritance diagram for A0:
[legend]

Public Member Functions

virtual void interior_assembly (FEMContext &c)
 Perform the element interior assembly. More...
 
virtual void interior_assembly (FEMContext &c)
 Perform the element interior assembly. More...
 
virtual void interior_assembly (FEMContext &c)
 Perform the element interior assembly. More...
 
virtual void interior_assembly (FEMContext &c)
 Perform the element interior assembly. More...
 
virtual void interior_assembly (FEMContext &c)
 Perform the element interior assembly. More...
 
virtual void boundary_assembly (FEMContext &)
 Perform the element boundary assembly. More...
 
virtual void get_nodal_values (std::vector< dof_id_type > &, DenseMatrix< Number > &, DenseVector< Number > &, const System &, const Node &)
 Get values to add to the matrix or rhs vector based on node. More...
 

Static Public Member Functions

static std::string get_info ()
 Gets a string containing the reference information. More...
 
static void print_info (std::ostream &out=libMesh::out)
 Prints the reference information, by default to libMesh::out. More...
 
static unsigned int n_objects ()
 Prints the number of outstanding (created, but not yet destroyed) objects. More...
 
static void enable_print_counter_info ()
 Methods to enable/disable the reference counter output from print_info() More...
 
static void disable_print_counter_info ()
 

Protected Types

typedef std::map< std::string, std::pair< unsigned int, unsigned int > > Counts
 Data structure to log the information. More...
 

Protected Member Functions

void increment_constructor_count (const std::string &name)
 Increments the construction counter. More...
 
void increment_destructor_count (const std::string &name)
 Increments the destruction counter. More...
 

Static Protected Attributes

static Counts _counts
 Actually holds the data. More...
 
static Threads::atomic< unsigned int > _n_objects
 The number of objects. More...
 
static Threads::spin_mutex _mutex
 Mutual exclusion object to enable thread-safe reference counting. More...
 
static bool _enable_print_counter = true
 Flag to control whether reference count information is printed when print_info is called. More...
 

Detailed Description

Definition at line 39 of file assembly.h.

Member Typedef Documentation

◆ Counts

typedef std::map<std::string, std::pair<unsigned int, unsigned int> > libMesh::ReferenceCounter::Counts
protectedinherited

Data structure to log the information.

The log is identified by the class name.

Definition at line 117 of file reference_counter.h.

Member Function Documentation

◆ boundary_assembly()

virtual void libMesh::ElemAssembly::boundary_assembly ( FEMContext &  )
inlinevirtualinherited

Perform the element boundary assembly.

Reimplemented in Output0, F0, A3, AssemblyA2, A2, AssemblyF2, AssemblyF1, AssemblyA1, AssemblyF0, and AssemblyA0.

Definition at line 62 of file elem_assembly.h.

62 { }

Referenced by libMesh::RBConstruction::add_scaled_matrix_and_vector().

◆ disable_print_counter_info()

void libMesh::ReferenceCounter::disable_print_counter_info ( )
staticinherited

Definition at line 106 of file reference_counter.C.

107 {
108  _enable_print_counter = false;
109  return;
110 }

References libMesh::ReferenceCounter::_enable_print_counter.

Referenced by libMesh::LibMeshInit::LibMeshInit().

◆ enable_print_counter_info()

void libMesh::ReferenceCounter::enable_print_counter_info ( )
staticinherited

Methods to enable/disable the reference counter output from print_info()

Definition at line 100 of file reference_counter.C.

101 {
102  _enable_print_counter = true;
103  return;
104 }

References libMesh::ReferenceCounter::_enable_print_counter.

◆ get_info()

std::string libMesh::ReferenceCounter::get_info ( )
staticinherited

Gets a string containing the reference information.

Definition at line 47 of file reference_counter.C.

48 {
49 #if defined(LIBMESH_ENABLE_REFERENCE_COUNTING) && defined(DEBUG)
50 
51  std::ostringstream oss;
52 
53  oss << '\n'
54  << " ---------------------------------------------------------------------------- \n"
55  << "| Reference count information |\n"
56  << " ---------------------------------------------------------------------------- \n";
57 
58  for (const auto & pr : _counts)
59  {
60  const std::string name(pr.first);
61  const unsigned int creations = pr.second.first;
62  const unsigned int destructions = pr.second.second;
63 
64  oss << "| " << name << " reference count information:\n"
65  << "| Creations: " << creations << '\n'
66  << "| Destructions: " << destructions << '\n';
67  }
68 
69  oss << " ---------------------------------------------------------------------------- \n";
70 
71  return oss.str();
72 
73 #else
74 
75  return "";
76 
77 #endif
78 }

References libMesh::ReferenceCounter::_counts, and libMesh::Quality::name().

Referenced by libMesh::ReferenceCounter::print_info().

◆ get_nodal_values()

virtual void libMesh::ElemAssembly::get_nodal_values ( std::vector< dof_id_type > &  ,
DenseMatrix< Number > &  ,
DenseVector< Number > &  ,
const System &  ,
const Node &   
)
inlinevirtualinherited

Get values to add to the matrix or rhs vector based on node.

This allows one to impose point loads or springs, for example.

Definition at line 69 of file elem_assembly.h.

74  {
75  // Do nothing by default
76  }

Referenced by libMesh::RBConstruction::add_scaled_matrix_and_vector().

◆ increment_constructor_count()

void libMesh::ReferenceCounter::increment_constructor_count ( const std::string &  name)
inlineprotectedinherited

Increments the construction counter.

Should be called in the constructor of any derived class that will be reference counted.

Definition at line 181 of file reference_counter.h.

182 {
183  Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
184  std::pair<unsigned int, unsigned int> & p = _counts[name];
185 
186  p.first++;
187 }

References libMesh::ReferenceCounter::_counts, libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

Referenced by libMesh::ReferenceCountedObject< RBParametrized >::ReferenceCountedObject().

◆ increment_destructor_count()

void libMesh::ReferenceCounter::increment_destructor_count ( const std::string &  name)
inlineprotectedinherited

Increments the destruction counter.

Should be called in the destructor of any derived class that will be reference counted.

Definition at line 194 of file reference_counter.h.

195 {
196  Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
197  std::pair<unsigned int, unsigned int> & p = _counts[name];
198 
199  p.second++;
200 }

References libMesh::ReferenceCounter::_counts, libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

Referenced by libMesh::ReferenceCountedObject< RBParametrized >::~ReferenceCountedObject().

◆ interior_assembly() [1/5]

virtual void A0::interior_assembly ( FEMContext &  )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 42 of file assembly.h.

43  {
44  const unsigned int u_var = 0;
45 
46  FEBase * elem_fe = nullptr;
47  c.get_element_fe(u_var, elem_fe);
48 
49  const std::vector<Real> & JxW = elem_fe->get_JxW();
50 
51  // The velocity shape function gradients at interior
52  // quadrature points.
53  const std::vector<std::vector<RealGradient>> & dphi = elem_fe->get_dphi();
54 
55  // The number of local degrees of freedom in each variable
56  const unsigned int n_u_dofs = c.get_dof_indices(u_var).size();
57 
58  // Now we will build the affine operator
59  unsigned int n_qpoints = c.get_element_qrule().n_points();
60 
61  for (unsigned int qp=0; qp != n_qpoints; qp++)
62  for (unsigned int i=0; i != n_u_dofs; i++)
63  for (unsigned int j=0; j != n_u_dofs; j++)
64  c.get_elem_jacobian()(i,j) += JxW[qp] * dphi[j][qp]*dphi[i][qp];
65  }

References libMesh::DiffContext::get_dof_indices(), libMesh::DiffContext::get_elem_jacobian(), libMesh::FEMContext::get_element_fe(), libMesh::FEMContext::get_element_qrule(), and libMesh::QBase::n_points().

◆ interior_assembly() [2/5]

virtual void A0::interior_assembly ( FEMContext &  )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 57 of file assembly.h.

58  {
59  const unsigned int u_var = 0;
60 
61  FEBase * elem_fe = nullptr;
62  c.get_element_fe(u_var, elem_fe);
63 
64  const std::vector<Real> & JxW = elem_fe->get_JxW();
65 
66  // The velocity shape function gradients at interior
67  // quadrature points.
68  const std::vector<std::vector<RealGradient>> & dphi = elem_fe->get_dphi();
69 
70  // The number of local degrees of freedom in each variable
71  const unsigned int n_u_dofs = c.get_dof_indices(u_var).size();
72 
73  // Now we will build the affine operator
74  unsigned int n_qpoints = c.get_element_qrule().n_points();
75 
76  for (unsigned int qp=0; qp != n_qpoints; qp++)
77  for (unsigned int i=0; i != n_u_dofs; i++)
78  for (unsigned int j=0; j != n_u_dofs; j++)
79  c.get_elem_jacobian()(i,j) += JxW[qp] * dphi[j][qp]*dphi[i][qp];
80  }

References libMesh::DiffContext::get_dof_indices(), libMesh::DiffContext::get_elem_jacobian(), libMesh::FEMContext::get_element_fe(), libMesh::FEMContext::get_element_qrule(), and libMesh::QBase::n_points().

◆ interior_assembly() [3/5]

virtual void A0::interior_assembly ( FEMContext &  )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 70 of file assembly.h.

71  {
72  const unsigned int u_var = 0;
73 
74  FEBase * elem_fe = nullptr;
75  c.get_element_fe(u_var, elem_fe);
76 
77  const std::vector<Real> & JxW = elem_fe->get_JxW();
78 
79  // The velocity shape function gradients at interior
80  // quadrature points.
81  const std::vector<std::vector<RealGradient>> & dphi = elem_fe->get_dphi();
82 
83  // The number of local degrees of freedom in each variable
84  const unsigned int n_u_dofs = c.get_dof_indices(u_var).size();
85 
86  // Now we will build the affine operator
87  unsigned int n_qpoints = c.get_element_qrule().n_points();
88 
89  for (unsigned int qp=0; qp != n_qpoints; qp++)
90  for (unsigned int i=0; i != n_u_dofs; i++)
91  for (unsigned int j=0; j != n_u_dofs; j++)
92  c.get_elem_jacobian()(i,j) += JxW[qp] * dphi[j][qp]*dphi[i][qp];
93  }

References libMesh::DiffContext::get_dof_indices(), libMesh::DiffContext::get_elem_jacobian(), libMesh::FEMContext::get_element_fe(), libMesh::FEMContext::get_element_qrule(), and libMesh::QBase::n_points().

◆ interior_assembly() [4/5]

virtual void A0::interior_assembly ( FEMContext &  )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 74 of file assembly.h.

75  {
76  const unsigned int u_var = 0;
77 
78  FEBase * elem_fe = nullptr;
79  c.get_element_fe(u_var, elem_fe);
80 
81  const std::vector<Real> & JxW = elem_fe->get_JxW();
82 
83  // The velocity shape function gradients at interior
84  // quadrature points.
85  const std::vector<std::vector<RealGradient>> & dphi = elem_fe->get_dphi();
86 
87  // The number of local degrees of freedom in each variable
88  const unsigned int n_u_dofs = c.get_dof_indices(u_var).size();
89 
90  // Now we will build the affine operator
91  unsigned int n_qpoints = c.get_element_qrule().n_points();
92 
93  Real
94  min_x=0.,
95  max_x=0.5;
96 
97  Point centroid = c.get_elem().centroid();
98  if ((min_x <= centroid(0)) && (centroid(0) < max_x))
99  for (unsigned int qp=0; qp != n_qpoints; qp++)
100  for (unsigned int i=0; i != n_u_dofs; i++)
101  for (unsigned int j=0; j != n_u_dofs; j++)
102  c.get_elem_jacobian()(i,j) += JxW[qp] * dphi[j][qp]*dphi[i][qp];
103  }

References libMesh::Elem::centroid(), libMesh::DiffContext::get_dof_indices(), libMesh::FEMContext::get_elem(), libMesh::DiffContext::get_elem_jacobian(), libMesh::FEMContext::get_element_fe(), libMesh::FEMContext::get_element_qrule(), libMesh::QBase::n_points(), and libMesh::Real.

◆ interior_assembly() [5/5]

virtual void A0::interior_assembly ( FEMContext &  )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 120 of file assembly.h.

121  {
122  const unsigned int p_var = 0;
123 
124  FEBase * elem_fe = nullptr;
125  c.get_element_fe(p_var, elem_fe);
126 
127  const std::vector<Real> & JxW = elem_fe->get_JxW();
128 
129  // The velocity shape function gradients at interior
130  // quadrature points.
131  const std::vector<std::vector<RealGradient>> & dphi = elem_fe->get_dphi();
132 
133  // The number of local degrees of freedom in each variable
134  const unsigned int n_p_dofs = c.get_dof_indices(p_var).size();
135 
136  // Now we will build the affine operator
137  unsigned int n_qpoints = c.get_element_qrule().n_points();
138 
139  for (unsigned int qp=0; qp != n_qpoints; qp++)
140  for (unsigned int i=0; i != n_p_dofs; i++)
141  for (unsigned int j=0; j != n_p_dofs; j++)
142  c.get_elem_jacobian()(i,j) += JxW[qp] * (dphi[j][qp]*dphi[i][qp]);
143  }

References libMesh::DiffContext::get_dof_indices(), libMesh::DiffContext::get_elem_jacobian(), libMesh::FEMContext::get_element_fe(), libMesh::FEMContext::get_element_qrule(), and libMesh::QBase::n_points().

◆ n_objects()

static unsigned int libMesh::ReferenceCounter::n_objects ( )
inlinestaticinherited

Prints the number of outstanding (created, but not yet destroyed) objects.

Definition at line 83 of file reference_counter.h.

84  { return _n_objects; }

References libMesh::ReferenceCounter::_n_objects.

◆ print_info()

void libMesh::ReferenceCounter::print_info ( std::ostream &  out = libMesh::out)
staticinherited

Prints the reference information, by default to libMesh::out.

Definition at line 87 of file reference_counter.C.

88 {
89  if (_enable_print_counter)
90  out_stream << ReferenceCounter::get_info();
91 }

References libMesh::ReferenceCounter::_enable_print_counter, and libMesh::ReferenceCounter::get_info().

Member Data Documentation

◆ _counts

ReferenceCounter::Counts libMesh::ReferenceCounter::_counts
staticprotectedinherited

Actually holds the data.

Definition at line 122 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::get_info(), libMesh::ReferenceCounter::increment_constructor_count(), and libMesh::ReferenceCounter::increment_destructor_count().

◆ _enable_print_counter

bool libMesh::ReferenceCounter::_enable_print_counter = true
staticprotectedinherited

Flag to control whether reference count information is printed when print_info is called.

Definition at line 141 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::disable_print_counter_info(), libMesh::ReferenceCounter::enable_print_counter_info(), and libMesh::ReferenceCounter::print_info().

◆ _mutex

Threads::spin_mutex libMesh::ReferenceCounter::_mutex
staticprotectedinherited

Mutual exclusion object to enable thread-safe reference counting.

Definition at line 135 of file reference_counter.h.

◆ _n_objects

Threads::atomic< unsigned int > libMesh::ReferenceCounter::_n_objects
staticprotectedinherited

The number of objects.

Print the reference count information when the number returns to 0.

Definition at line 130 of file reference_counter.h.

Referenced by libMesh::ReferenceCounter::n_objects(), libMesh::ReferenceCounter::ReferenceCounter(), and libMesh::ReferenceCounter::~ReferenceCounter().

The documentation for this struct was generated from the following file:
libMesh::ReferenceCounter::_counts
static Counts _counts
Actually holds the data.
Definition: reference_counter.h:122
libMesh::ReferenceCounter::_n_objects
static Threads::atomic< unsigned int > _n_objects
The number of objects.
Definition: reference_counter.h:130
libMesh::ReferenceCounter::get_info
static std::string get_info()
Gets a string containing the reference information.
Definition: reference_counter.C:47
libMesh::FEBase
FEGenericBase< Real > FEBase
Definition: exact_error_estimator.h:39
libMesh::Threads::spin_mtx
spin_mutex spin_mtx
A convenient spin mutex object which can be used for obtaining locks.
Definition: threads.C:29
libMesh::Point
A Point defines a location in LIBMESH_DIM dimensional Real space.
Definition: point.h:38
libMesh::Real
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
Definition: libmesh_common.h:121
libMesh::ReferenceCounter::_enable_print_counter
static bool _enable_print_counter
Flag to control whether reference count information is printed when print_info is called.
Definition: reference_counter.h:141
libMesh::Quality::name
std::string name(const ElemQuality q)
This function returns a string containing some name for q.
Definition: elem_quality.C:42
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