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_stream=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) noexcept
 Increments the construction counter. More...
 
void increment_destructor_count (const std::string &name) noexcept
 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 119 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, A2, AssemblyF2, AssemblyA2, AssemblyF1, AssemblyF0, AssemblyA1, and AssemblyA0.

Definition at line 60 of file elem_assembly.h.

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

60 { }

◆ disable_print_counter_info()

void libMesh::ReferenceCounter::disable_print_counter_info ( )
staticinherited

Definition at line 100 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

101 {
102  _enable_print_counter = false;
103  return;
104 }
static bool _enable_print_counter
Flag to control whether reference count information is printed when print_info is called...

◆ 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 94 of file reference_counter.C.

References libMesh::ReferenceCounter::_enable_print_counter.

95 {
96  _enable_print_counter = true;
97  return;
98 }
static bool _enable_print_counter
Flag to control whether reference count information is printed when print_info is called...

◆ 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.

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

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

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 & [name, cd] : _counts)
59  oss << "| " << name << " reference count information:\n"
60  << "| Creations: " << cd.first << '\n'
61  << "| Destructions: " << cd.second << '\n';
62 
63  oss << " ---------------------------------------------------------------------------- \n";
64 
65  return oss.str();
66 
67 #else
68 
69  return "";
70 
71 #endif
72 }
std::string name(const ElemQuality q)
This function returns a string containing some name for q.
Definition: elem_quality.C:42
static Counts _counts
Actually holds the data.

◆ 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 67 of file elem_assembly.h.

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

72  {
73  // Do nothing by default
74  }

◆ increment_constructor_count()

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

Increments the construction counter.

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

Definition at line 183 of file reference_counter.h.

References libMesh::err, libMesh::BasicOStreamProxy< charT, traits >::get(), libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

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

184 {
185  libmesh_try
186  {
187  Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
188  std::pair<unsigned int, unsigned int> & p = _counts[name];
189  p.first++;
190  }
191  libmesh_catch (...)
192  {
193  auto stream = libMesh::err.get();
194  stream->exceptions(stream->goodbit); // stream must not throw
195  libMesh::err << "Encountered unrecoverable error while calling "
196  << "ReferenceCounter::increment_constructor_count() "
197  << "for a(n) " << name << " object." << std::endl;
198  std::terminate();
199  }
200 }
std::string name(const ElemQuality q)
This function returns a string containing some name for q.
Definition: elem_quality.C:42
OStreamProxy err
static Counts _counts
Actually holds the data.
streamT * get()
Rather than implement every ostream/ios/ios_base function, we&#39;ll be lazy and make esoteric uses go th...
spin_mutex spin_mtx
A convenient spin mutex object which can be used for obtaining locks.
Definition: threads.C:30

◆ increment_destructor_count()

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

Increments the destruction counter.

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

Definition at line 207 of file reference_counter.h.

References libMesh::err, libMesh::BasicOStreamProxy< charT, traits >::get(), libMesh::Quality::name(), and libMesh::Threads::spin_mtx.

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

208 {
209  libmesh_try
210  {
211  Threads::spin_mutex::scoped_lock lock(Threads::spin_mtx);
212  std::pair<unsigned int, unsigned int> & p = _counts[name];
213  p.second++;
214  }
215  libmesh_catch (...)
216  {
217  auto stream = libMesh::err.get();
218  stream->exceptions(stream->goodbit); // stream must not throw
219  libMesh::err << "Encountered unrecoverable error while calling "
220  << "ReferenceCounter::increment_destructor_count() "
221  << "for a(n) " << name << " object." << std::endl;
222  std::terminate();
223  }
224 }
std::string name(const ElemQuality q)
This function returns a string containing some name for q.
Definition: elem_quality.C:42
OStreamProxy err
static Counts _counts
Actually holds the data.
streamT * get()
Rather than implement every ostream/ios/ios_base function, we&#39;ll be lazy and make esoteric uses go th...
spin_mutex spin_mtx
A convenient spin mutex object which can be used for obtaining locks.
Definition: threads.C:30

◆ 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.

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().

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  }
FEGenericBase< Real > FEBase

◆ interior_assembly() [2/5]

virtual void A0::interior_assembly ( FEMContext )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 70 of file assembly.h.

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().

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  }
FEGenericBase< Real > FEBase

◆ interior_assembly() [3/5]

virtual void A0::interior_assembly ( FEMContext )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 74 of file assembly.h.

References 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(), libMesh::Real, and libMesh::Elem::vertex_average().

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 avg = c.get_elem().vertex_average();
98  if ((min_x <= avg(0)) && (avg(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  }
FEGenericBase< Real > FEBase
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
A Point defines a location in LIBMESH_DIM dimensional Real space.
Definition: point.h:39

◆ interior_assembly() [4/5]

virtual void A0::interior_assembly ( FEMContext )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 120 of file assembly.h.

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().

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  }
FEGenericBase< Real > FEBase

◆ interior_assembly() [5/5]

virtual void A0::interior_assembly ( FEMContext )
inlinevirtual

Perform the element interior assembly.

Reimplemented from libMesh::ElemAssembly.

Definition at line 141 of file assembly.h.

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().

142  {
143  const unsigned int u_var = 0;
144 
145  FEBase * elem_fe = nullptr;
146  c.get_element_fe(u_var, elem_fe);
147 
148  const std::vector<Real> & JxW = elem_fe->get_JxW();
149 
150  // The velocity shape function gradients at interior
151  // quadrature points.
152  const std::vector<std::vector<RealGradient>> & dphi = elem_fe->get_dphi();
153 
154  // The number of local degrees of freedom in each variable
155  const unsigned int n_u_dofs = c.get_dof_indices(u_var).size();
156 
157  // Now we will build the affine operator
158  unsigned int n_qpoints = c.get_element_qrule().n_points();
159 
160  for (unsigned int qp=0; qp != n_qpoints; qp++)
161  for (unsigned int i=0; i != n_u_dofs; i++)
162  for (unsigned int j=0; j != n_u_dofs; j++)
163  c.get_elem_jacobian()(i,j) += JxW[qp] * dphi[j][qp]*dphi[i][qp];
164  }
FEGenericBase< Real > FEBase

◆ n_objects()

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

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

Definition at line 85 of file reference_counter.h.

References libMesh::ReferenceCounter::_n_objects.

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

86  { return _n_objects; }
static Threads::atomic< unsigned int > _n_objects
The number of objects.

◆ print_info()

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

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

Definition at line 81 of file reference_counter.C.

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

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

82 {
84  out_stream << ReferenceCounter::get_info();
85 }
static std::string get_info()
Gets a string containing the reference information.
static bool _enable_print_counter
Flag to control whether reference count information is printed when print_info is called...

Member Data Documentation

◆ _counts

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

Actually holds the data.

Definition at line 124 of file reference_counter.h.

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

◆ _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 143 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 137 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 132 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: