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

#include <restriction.hpp>

Inheritance diagram for mfem::L2FaceRestriction:

Collaboration diagram for mfem::L2FaceRestriction:

Public Member Functions
	L2FaceRestriction (const FiniteElementSpace &, const ElementDofOrdering, const FaceType, const L2FaceValues m=L2FaceValues::DoubleValued)

virtual void	Mult (const Vector &x, Vector &y) const
	Operator application: `y=A(x)`. More...

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...

virtual void	FillI (SparseMatrix &mat, SparseMatrix &face_mat) const

virtual void	FillJAndData (const Vector &ea_data, SparseMatrix &mat, SparseMatrix &face_mat) const

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 Operator &	GetGradient (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 Operator *	GetProlongation () const
	Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. `NULL` means identity. More...

virtual const Operator *	GetRestriction () const
	Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. `NULL` means identity. More...

virtual const Operator *	GetOutputProlongation () const
	Prolongation operator from linear algebra (linear system) vectors, to output vectors for the operator. `NULL` means identity. More...

virtual const Operator *	GetOutputRestriction () 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...

Protected Member Functions
	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...

Operator *	SetupRAP (const Operator Pi, const Operator Po)
	Returns RAP Operator of this, taking in input/output Prolongation matrices. More...

Protected Attributes
const FiniteElementSpace &	fes

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...

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...

Detailed Description

Operator that extracts Face degrees of freedom.

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

Definition at line 130 of file restriction.hpp.

Constructor & Destructor Documentation

mfem::L2FaceRestriction::L2FaceRestriction	(	const FiniteElementSpace &	fes,
		const FaceType	type,
		const L2FaceValues	m = `L2FaceValues::DoubleValued`
	)

protected

Definition at line 975 of file restriction.cpp.

mfem::L2FaceRestriction::L2FaceRestriction	(	const FiniteElementSpace &	fes,
		const ElementDofOrdering	e_ordering,
		const FaceType	type,
		const L2FaceValues	m = `L2FaceValues::DoubleValued`
	)

Definition at line 997 of file restriction.cpp.

Member Function Documentation

void mfem::L2FaceRestriction::AddFaceMatricesToElementMatrices	(	Vector &	fea_data,
		Vector &	ea_data
	)		const

This methods adds the DG face matrices to the element matrices.

Definition at line 1346 of file restriction.cpp.

void mfem::L2FaceRestriction::FillI	(	SparseMatrix &	mat,
		SparseMatrix &	face_mat
	)		const

virtual

Fill the I array of SparseMatrix corresponding to the sparsity pattern given by this L2FaceRestriction.

Reimplemented in mfem::ParL2FaceRestriction.

Definition at line 1299 of file restriction.cpp.

void mfem::L2FaceRestriction::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 L2FaceRestriction, and the values of ea_data.

Reimplemented in mfem::ParL2FaceRestriction.

Definition at line 1315 of file restriction.cpp.

void mfem::L2FaceRestriction::Mult	(	const Vector &	x,
		Vector &	y
	)		const

virtual

Operator application: y=A(x).

Implements mfem::Operator.

Reimplemented in mfem::ParL2FaceRestriction.

Definition at line 1196 of file restriction.cpp.

void mfem::L2FaceRestriction::MultTranspose	(	const Vector &	x,
		Vector &	y
	)		const

virtual

Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error.

Reimplemented from mfem::Operator.

Definition at line 1243 of file restriction.cpp.

Member Data Documentation

const bool mfem::L2FaceRestriction::byvdim

protected

Definition at line 137 of file restriction.hpp.

const int mfem::L2FaceRestriction::dof

protected

Definition at line 139 of file restriction.hpp.

const int mfem::L2FaceRestriction::elemDofs

protected

Definition at line 140 of file restriction.hpp.

const FiniteElementSpace& mfem::L2FaceRestriction::fes

protected

Definition at line 133 of file restriction.hpp.

Array<int> mfem::L2FaceRestriction::gather_indices

protected

Definition at line 146 of file restriction.hpp.

const L2FaceValues mfem::L2FaceRestriction::m

protected

Definition at line 141 of file restriction.hpp.

const int mfem::L2FaceRestriction::ndofs

protected

Definition at line 138 of file restriction.hpp.

const int mfem::L2FaceRestriction::ne

protected

Definition at line 135 of file restriction.hpp.

const int mfem::L2FaceRestriction::nf

protected

Definition at line 134 of file restriction.hpp.

const int mfem::L2FaceRestriction::nfdofs

protected

Definition at line 142 of file restriction.hpp.

Array<int> mfem::L2FaceRestriction::offsets

protected

Definition at line 145 of file restriction.hpp.

Array<int> mfem::L2FaceRestriction::scatter_indices1

protected

Definition at line 143 of file restriction.hpp.

Array<int> mfem::L2FaceRestriction::scatter_indices2

protected

Definition at line 144 of file restriction.hpp.

const int mfem::L2FaceRestriction::vdim

protected

Definition at line 136 of file restriction.hpp.

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

fem/restriction.hpp
fem/restriction.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation