MFEM  v4.2.0
Finite element discretization library
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mfem::ParL2FaceRestriction Class Reference

Operator that extracts Face degrees of freedom in parallel. More...

#include <prestriction.hpp>

Inheritance diagram for mfem::ParL2FaceRestriction:
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Collaboration diagram for mfem::ParL2FaceRestriction:
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Public Member Functions

 ParL2FaceRestriction (const ParFiniteElementSpace &, ElementDofOrdering, FaceType type, L2FaceValues m=L2FaceValues::DoubleValued)
 
void Mult (const Vector &x, Vector &y) const
 Operator application: y=A(x). More...
 
void FillI (SparseMatrix &mat, SparseMatrix &face_mat) const
 
void FillJAndData (const Vector &ea_data, SparseMatrix &mat, SparseMatrix &face_mat) const
 
- Public Member Functions inherited from mfem::L2FaceRestriction
 L2FaceRestriction (const FiniteElementSpace &, const ElementDofOrdering, const FaceType, const L2FaceValues m=L2FaceValues::DoubleValued)
 
void MultTranspose (const Vector &x, Vector &y) const
 Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error. More...
 
void AddFaceMatricesToElementMatrices (Vector &fea_data, Vector &ea_data) const
 This methods adds the DG face matrices to the element matrices. More...
 
- Public Member Functions inherited from mfem::Operator
void InitTVectors (const Operator *Po, const Operator *Ri, const Operator *Pi, Vector &x, Vector &b, Vector &X, Vector &B) const
 Initializes memory for true vectors of linear system. More...
 
 Operator (int s=0)
 Construct a square Operator with given size s (default 0). More...
 
 Operator (int h, int w)
 Construct an Operator with the given height (output size) and width (input size). More...
 
int Height () const
 Get the height (size of output) of the Operator. Synonym with NumRows(). More...
 
int NumRows () const
 Get the number of rows (size of output) of the Operator. Synonym with Height(). More...
 
int Width () const
 Get the width (size of input) of the Operator. Synonym with NumCols(). More...
 
int NumCols () const
 Get the number of columns (size of input) of the Operator. Synonym with Width(). More...
 
virtual MemoryClass GetMemoryClass () const
 Return the MemoryClass preferred by the Operator. More...
 
virtual OperatorGetGradient (const Vector &x) const
 Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error. More...
 
virtual const OperatorGetProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity. More...
 
virtual const OperatorGetRestriction () const
 Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More...
 
virtual const OperatorGetOutputProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to output vectors for the operator. NULL means identity. More...
 
virtual const OperatorGetOutputRestriction () const
 Restriction operator from output vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More...
 
void FormLinearSystem (const Array< int > &ess_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B, int copy_interior=0)
 Form a constrained linear system using a matrix-free approach. More...
 
void FormRectangularLinearSystem (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B)
 Form a column-constrained linear system using a matrix-free approach. More...
 
virtual void RecoverFEMSolution (const Vector &X, const Vector &b, Vector &x)
 Reconstruct a solution vector x (e.g. a GridFunction) from the solution X of a constrained linear system obtained from Operator::FormLinearSystem() or Operator::FormRectangularLinearSystem(). More...
 
void FormSystemOperator (const Array< int > &ess_tdof_list, Operator *&A)
 Return in A a parallel (on truedofs) version of this square operator. More...
 
void FormRectangularSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, Operator *&A)
 Return in A a parallel (on truedofs) version of this rectangular operator (including constraints). More...
 
void FormDiscreteOperator (Operator *&A)
 Return in A a parallel (on truedofs) version of this rectangular operator. More...
 
void PrintMatlab (std::ostream &out, int n=0, int m=0) const
 Prints operator with input size n and output size m in Matlab format. More...
 
virtual ~Operator ()
 Virtual destructor. More...
 
Type GetType () const
 Return the type ID of the Operator class. More...
 

Additional Inherited Members

- Public Types inherited from mfem::Operator
enum  DiagonalPolicy { DIAG_ZERO, DIAG_ONE, DIAG_KEEP }
 Defines operator diagonal policy upon elimination of rows and/or columns. More...
 
enum  Type {
  ANY_TYPE, MFEM_SPARSEMAT, Hypre_ParCSR, PETSC_MATAIJ,
  PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST, PETSC_MATHYPRE,
  PETSC_MATGENERIC, Complex_Operator, MFEM_ComplexSparseMat, Complex_Hypre_ParCSR
}
 Enumeration defining IDs for some classes derived from Operator. More...
 
- Protected Member Functions inherited from mfem::L2FaceRestriction
 L2FaceRestriction (const FiniteElementSpace &, const FaceType, const L2FaceValues m=L2FaceValues::DoubleValued)
 
- Protected Member Functions inherited from mfem::Operator
void FormConstrainedSystemOperator (const Array< int > &ess_tdof_list, ConstrainedOperator *&Aout)
 see FormSystemOperator() More...
 
void FormRectangularConstrainedSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, RectangularConstrainedOperator *&Aout)
 see FormRectangularSystemOperator() More...
 
OperatorSetupRAP (const Operator *Pi, const Operator *Po)
 Returns RAP Operator of this, taking in input/output Prolongation matrices. More...
 
- Protected Attributes inherited from mfem::L2FaceRestriction
const FiniteElementSpacefes
 
const int nf
 
const int ne
 
const int vdim
 
const bool byvdim
 
const int ndofs
 
const int dof
 
const int elemDofs
 
const L2FaceValues m
 
const int nfdofs
 
Array< int > scatter_indices1
 
Array< int > scatter_indices2
 
Array< int > offsets
 
Array< int > gather_indices
 
- Protected Attributes inherited from mfem::Operator
int height
 Dimension of the output / number of rows in the matrix. More...
 
int width
 Dimension of the input / number of columns in the matrix. More...
 

Detailed Description

Operator that extracts Face degrees of freedom in parallel.

Objects of this type are typically created and owned by FiniteElementSpace objects, see FiniteElementSpace::GetFaceRestriction().

Definition at line 29 of file prestriction.hpp.

Constructor & Destructor Documentation

mfem::ParL2FaceRestriction::ParL2FaceRestriction ( const ParFiniteElementSpace fes,
ElementDofOrdering  e_ordering,
FaceType  type,
L2FaceValues  m = L2FaceValues::DoubleValued 
)

Definition at line 26 of file prestriction.cpp.

Member Function Documentation

void mfem::ParL2FaceRestriction::FillI ( SparseMatrix mat,
SparseMatrix face_mat 
) const
virtual

Fill the I array of SparseMatrix corresponding to the sparsity pattern given by this ParL2FaceRestriction.

Reimplemented from mfem::L2FaceRestriction.

Definition at line 337 of file prestriction.cpp.

void mfem::ParL2FaceRestriction::FillJAndData ( const Vector ea_data,
SparseMatrix mat,
SparseMatrix face_mat 
) const
virtual

Fill the J and Data arrays of SparseMatrix corresponding to the sparsity pattern given by this ParL2FaceRestriction, and the values of ea_data.

Reimplemented from mfem::L2FaceRestriction.

Definition at line 389 of file prestriction.cpp.

void mfem::ParL2FaceRestriction::Mult ( const Vector x,
Vector y 
) const
virtual

Operator application: y=A(x).

Reimplemented from mfem::L2FaceRestriction.

Definition at line 262 of file prestriction.cpp.


The documentation for this class was generated from the following files: