Class for parallel bilinear form. More...

#include <pbilinearform.hpp>

Inheritance diagram for mfem::ParBilinearForm:

Collaboration diagram for mfem::ParBilinearForm:

Public Member Functions
	ParBilinearForm (ParFiniteElementSpace *pf)

	ParBilinearForm (ParFiniteElementSpace pf, ParBilinearForm bf)

void	KeepNbrBlock (bool knb=true)

void	Assemble (int skip_zeros=1)
	Assemble the local matrix. More...

HypreParMatrix *	ParallelAssemble ()
	Returns the matrix assembled on the true dofs, i.e. P^t A P. More...

HypreParMatrix *	ParallelAssembleElim ()
	Returns the eliminated matrix assembled on the true dofs, i.e. P^t A_e P. More...

HypreParMatrix *	ParallelAssemble (SparseMatrix *m)
	Return the matrix m assembled on the true dofs, i.e. P^t A P. More...

void	TrueAddMult (const Vector &x, Vector &y, const double a=1.0) const
	Compute y += a (P^t A P) x, where x and y are vectors on the true dofs. More...

ParFiniteElementSpace *	ParFESpace () const

virtual	~ParBilinearForm ()

Public Member Functions inherited from mfem::BilinearForm
	BilinearForm (FiniteElementSpace *f)
	Creates bilinear form associated with FE space *f. More...

	BilinearForm (FiniteElementSpace f, BilinearForm bf, int ps=0)

int	Size () const
	Get the size of the BilinearForm as a square matrix. More...

void	UsePrecomputedSparsity (int ps=1)

void	AllocateMatrix ()

Array< BilinearFormIntegrator * > *	GetDBFI ()

Array< BilinearFormIntegrator * > *	GetBBFI ()

Array< BilinearFormIntegrator * > *	GetFBFI ()

Array< BilinearFormIntegrator * > *	GetBFBFI ()

const double &	operator() (int i, int j)

virtual double &	Elem (int i, int j)
	Returns reference to a_{ij}. More...

virtual const double &	Elem (int i, int j) const
	Returns constant reference to a_{ij}. More...

virtual void	Mult (const Vector &x, Vector &y) const
	Matrix vector multiplication. More...

void	FullMult (const Vector &x, Vector &y) const

virtual void	AddMult (const Vector &x, Vector &y, const double a=1.0) const

void	FullAddMult (const Vector &x, Vector &y) const

double	InnerProduct (const Vector &x, const Vector &y) const

virtual MatrixInverse *	Inverse () const
	Returns a pointer to (approximation) of the matrix inverse. More...

virtual void	Finalize (int skip_zeros=1)
	Finalizes the matrix initialization. More...

const SparseMatrix &	SpMat () const
	Returns a reference to the sparse martix. More...

SparseMatrix &	SpMat ()

SparseMatrix *	LoseMat ()

void	AddDomainIntegrator (BilinearFormIntegrator *bfi)
	Adds new Domain Integrator. More...

void	AddBoundaryIntegrator (BilinearFormIntegrator *bfi)
	Adds new Boundary Integrator. More...

void	AddInteriorFaceIntegrator (BilinearFormIntegrator *bfi)
	Adds new interior Face Integrator. More...

void	AddBdrFaceIntegrator (BilinearFormIntegrator *bfi)
	Adds new boundary Face Integrator. More...

void	operator= (const double a)

void	Assemble (int skip_zeros=1)
	Assembles the form i.e. sums over all domain/bdr integrators. More...

void	ConformingAssemble ()

void	ConformingAssemble (GridFunction &sol, LinearForm &rhs)

void	ComputeElementMatrices ()
	Compute and store internally all element matrices. More...

void	FreeElementMatrices ()
	Free the memory used by the element matrices. More...

void	ComputeElementMatrix (int i, DenseMatrix &elmat)

void	AssembleElementMatrix (int i, const DenseMatrix &elmat, Array< int > &vdofs, int skip_zeros=1)

void	EliminateEssentialBC (Array< int > &bdr_attr_is_ess, Vector &sol, Vector &rhs, int d=0)

void	EliminateVDofs (Array< int > &vdofs, Vector &sol, Vector &rhs, int d=0)
	Here, vdofs is a list of DOFs. More...

void	EliminateVDofs (Array< int > &vdofs, int d=0)

void	EliminateVDofsInRHS (Array< int > &vdofs, const Vector &x, Vector &b)

double	FullInnerProduct (const Vector &x, const Vector &y) const

void	EliminateEssentialBC (Array< int > &bdr_attr_is_ess, int d=0)

void	EliminateEssentialBCFromDofs (Array< int > &ess_dofs, Vector &sol, Vector &rhs, int d=0)

void	EliminateEssentialBCFromDofs (Array< int > &ess_dofs, int d=0)

void	Update (FiniteElementSpace *nfes=NULL)

FiniteElementSpace *	GetFES ()

virtual	~BilinearForm ()
	Destroys bilinear form. More...

Public Member Functions inherited from mfem::Matrix
	Matrix (int s)
	Creates a square matrix of size s. More...

	Matrix (int h, int w)
	Creates a matrix of the given height and width. More...

virtual void	Print (std::ostream &out=std::cout, int width_=4) const
	Prints matrix to stream out. More...

virtual	~Matrix ()
	Destroys matrix. More...

Public Member Functions inherited from mfem::Operator
	Operator (int s=0)
	Construct a square Operator with given size s (default 0) More...

	Operator (int h, int w)

int	Height () const
	Get the height (size of output) of the Operator. Synonym with NumRows. More...

int	NumRows () const

int	Width () const
	Get the width (size of input) of the Operator. Synonym with NumCols. More...

int	NumCols () const

virtual void	MultTranspose (const Vector &x, Vector &y) const
	Action of the transpose operator. More...

virtual Operator &	GetGradient (const Vector &x) const
	Evaluate the gradient operator at the point x. More...

void	PrintMatlab (std::ostream &out, int n=0, int m=0)
	Prints operator with input size n and output size m in matlab format. More...

virtual	~Operator ()

Protected Member Functions
void	pAllocMat ()

void	AssembleSharedFaces (int skip_zeros=1)

Protected Member Functions inherited from mfem::BilinearForm
void	AllocMat ()

	BilinearForm ()

Protected Attributes
ParFiniteElementSpace *	pfes

ParGridFunction	X

ParGridFunction	Y

bool	keep_nbr_block

Protected Attributes inherited from mfem::BilinearForm
SparseMatrix *	mat
	Sparse matrix to be associated with the form. More...

SparseMatrix *	mat_e

FiniteElementSpace *	fes
	FE space on which the form lives. More...

int	extern_bfs

Array< BilinearFormIntegrator * >	dbfi
	Set of Domain Integrators to be applied. More...

Array< BilinearFormIntegrator * >	bbfi
	Set of Boundary Integrators to be applied. More...

Array< BilinearFormIntegrator * >	fbfi
	Set of interior face Integrators to be applied. More...

Array< BilinearFormIntegrator * >	bfbfi
	Set of boundary face Integrators to be applied. More...

DenseMatrix	elemmat

Array< int >	vdofs

DenseTensor *	element_matrices

int	precompute_sparsity

Protected Attributes inherited from mfem::Operator
int	height

int	width

Detailed Description

Class for parallel bilinear form.

Definition at line 28 of file pbilinearform.hpp.

Constructor & Destructor Documentation

mfem::ParBilinearForm::ParBilinearForm ( ParFiniteElementSpace * pf )

inline

Definition at line 42 of file pbilinearform.hpp.

mfem::ParBilinearForm::ParBilinearForm	(	ParFiniteElementSpace *	pf,
		ParBilinearForm *	bf
	)

inline

Definition at line 46 of file pbilinearform.hpp.

virtual mfem::ParBilinearForm::~ParBilinearForm ( )

inlinevirtual

Definition at line 72 of file pbilinearform.hpp.

Member Function Documentation

void mfem::ParBilinearForm::Assemble ( int skip_zeros = 1 )

Assemble the local matrix.

Definition at line 176 of file pbilinearform.cpp.

void mfem::ParBilinearForm::AssembleSharedFaces ( int skip_zeros = 1 )

protected

Definition at line 146 of file pbilinearform.cpp.

void mfem::ParBilinearForm::KeepNbrBlock ( bool knb = true )

inline

When set to true and the ParBilinearForm has interior face integrators, the local SparseMatrix will include the rows (in addition to the columns) corresponding to face-neighbor dofs. The default behavior is to disregard those rows. Must be called before the first Assemble call.

Definition at line 53 of file pbilinearform.hpp.

void mfem::ParBilinearForm::pAllocMat ( )

protected

Definition at line 21 of file pbilinearform.cpp.

HypreParMatrix* mfem::ParBilinearForm::ParallelAssemble ( )

inline

Returns the matrix assembled on the true dofs, i.e. P^t A P.

Definition at line 59 of file pbilinearform.hpp.

HypreParMatrix * mfem::ParBilinearForm::ParallelAssemble ( SparseMatrix * m )

Return the matrix m assembled on the true dofs, i.e. P^t A P.

Definition at line 106 of file pbilinearform.cpp.

HypreParMatrix* mfem::ParBilinearForm::ParallelAssembleElim ( )

inline

Returns the eliminated matrix assembled on the true dofs, i.e. P^t A_e P.

Definition at line 62 of file pbilinearform.hpp.

ParFiniteElementSpace* mfem::ParBilinearForm::ParFESpace ( ) const

inline

Definition at line 70 of file pbilinearform.hpp.

void mfem::ParBilinearForm::TrueAddMult	(	const Vector &	x,
		Vector &	y,
		const double	a = `1.0`
	)		const

Compute y += a (P^t A P) x, where x and y are vectors on the true dofs.

Definition at line 190 of file pbilinearform.cpp.

Member Data Documentation

bool mfem::ParBilinearForm::keep_nbr_block

protected

Definition at line 34 of file pbilinearform.hpp.

ParFiniteElementSpace* mfem::ParBilinearForm::pfes

protected

Definition at line 31 of file pbilinearform.hpp.

ParGridFunction mfem::ParBilinearForm::X

mutableprotected

Definition at line 32 of file pbilinearform.hpp.

ParGridFunction mfem::ParBilinearForm::Y

mutableprotected

Definition at line 32 of file pbilinearform.hpp.

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

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation