Class for parallel bilinear form using different test and trial FE spaces. More...

#include <pbilinearform.hpp>

Inheritance diagram for mfem::ParMixedBilinearForm:

Collaboration diagram for mfem::ParMixedBilinearForm:

Public Member Functions
	ParMixedBilinearForm (ParFiniteElementSpace trial_fes, ParFiniteElementSpace test_fes)
	Construct a ParMixedBilinearForm on the given FiniteElementSpaces trial_fes and test_fes. More...

	ParMixedBilinearForm (ParFiniteElementSpace trial_fes, ParFiniteElementSpace test_fes, ParMixedBilinearForm *mbf)
	Create a ParMixedBilinearForm on the given FiniteElementSpaces trial_fes and test_fes, using the same integrators as the ParMixedBilinearForm mbf. More...

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

void	ParallelAssemble (OperatorHandle &A)
	Returns the matrix assembled on the true dofs, i.e. A = P_test^t A_local P_trial, in the format (type id) specified by A. 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...

virtual	~ParMixedBilinearForm ()

Public Member Functions inherited from mfem::MixedBilinearForm
	MixedBilinearForm (FiniteElementSpace tr_fes, FiniteElementSpace te_fes)
	Construct a MixedBilinearForm on the given trial, tr_fes, and test, te_fes, FiniteElementSpaces. More...

	MixedBilinearForm (FiniteElementSpace tr_fes, FiniteElementSpace te_fes, MixedBilinearForm *mbf)
	Create a MixedBilinearForm on the given trial, tr_fes, and test, te_fes, FiniteElementSpaces, using the same integrators as the MixedBilinearForm mbf. More...

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
	Operator application: `y=A(x)`. More...

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

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

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

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

void	GetBlocks (Array2D< SparseMatrix * > &blocks) const

const SparseMatrix &	SpMat () const

SparseMatrix &	SpMat ()

SparseMatrix *	LoseMat ()

void	AddDomainIntegrator (BilinearFormIntegrator *bfi)
	Adds a domain integrator. Assumes ownership of bfi. More...

void	AddBoundaryIntegrator (BilinearFormIntegrator *bfi)
	Adds a boundary integrator. Assumes ownership of bfi. More...

void	AddTraceFaceIntegrator (BilinearFormIntegrator *bfi)
	Add a trace face integrator. Assumes ownership of bfi. More...

Array< BilinearFormIntegrator * > *	GetDBFI ()
	Access all integrators added with AddDomainIntegrator(). More...

Array< BilinearFormIntegrator * > *	GetBBFI ()
	Access all integrators added with AddBoundaryIntegrator(). More...

Array< BilinearFormIntegrator * > *	GetTFBFI ()
	Access all integrators added with AddTraceFaceIntegrator(). More...

void	operator= (const double a)

void	Assemble (int skip_zeros=1)

void	ConformingAssemble ()

void	EliminateTrialDofs (Array< int > &bdr_attr_is_ess, const Vector &sol, Vector &rhs)

void	EliminateEssentialBCFromTrialDofs (Array< int > &marked_vdofs, const Vector &sol, Vector &rhs)

virtual void	EliminateTestDofs (Array< int > &bdr_attr_is_ess)

void	Update ()

virtual	~MixedBilinearForm ()

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=mfem::out, 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)
	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...

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...

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(). 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 Attributes
ParFiniteElementSpace *	trial_pfes
	Points to the same object as trial_fes. More...

ParFiniteElementSpace *	test_pfes
	Points to the same object as test_fes. More...

ParGridFunction	X
	Auxiliary objects used in TrueAddMult(). More...

ParGridFunction	Y

Protected Attributes inherited from mfem::MixedBilinearForm
SparseMatrix *	mat
	Owned. More...

FiniteElementSpace *	trial_fes
	Not owned. More...

FiniteElementSpace *	test_fes
	Not owned. More...

int	extern_bfs
	Indicates the BilinearFormIntegrators stored in dom, bdr, and skt are owned by another MixedBilinearForm. More...

Array< BilinearFormIntegrator * >	dom
	Domain integrators. More...

Array< BilinearFormIntegrator * >	bdr
	Boundary integrators. More...

Array< BilinearFormIntegrator * >	skt
	Trace face (skeleton) integrators. More...

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::Matrix
enum	DiagonalPolicy { DIAG_ZERO, DIAG_ONE, DIAG_KEEP }

Public Types inherited from mfem::Operator
enum	Type { ANY_TYPE, MFEM_SPARSEMAT, Hypre_ParCSR, PETSC_MATAIJ, PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST, PETSC_MATHYPRE, PETSC_MATGENERIC }
	Enumeration defining IDs for some classes derived from Operator. More...

Detailed Description

Class for parallel bilinear form using different test and trial FE spaces.

Definition at line 188 of file pbilinearform.hpp.

Constructor & Destructor Documentation

mfem::ParMixedBilinearForm::ParMixedBilinearForm	(	ParFiniteElementSpace *	trial_fes,
		ParFiniteElementSpace *	test_fes
	)

inline

Construct a ParMixedBilinearForm on the given FiniteElementSpaces trial_fes and test_fes.

The pointers trial_fes and test_fes are not owned by the newly constructed object.

Definition at line 210 of file pbilinearform.hpp.

mfem::ParMixedBilinearForm::ParMixedBilinearForm	(	ParFiniteElementSpace *	trial_fes,
		ParFiniteElementSpace *	test_fes,
		ParMixedBilinearForm *	mbf
	)

inline

Create a ParMixedBilinearForm on the given FiniteElementSpaces trial_fes and test_fes, using the same integrators as the ParMixedBilinearForm mbf.

The pointers trial_fes and test_fes are not owned by the newly constructed object.

The integrators in mbf are copied as pointers and they are not owned by the newly constructed ParMixedBilinearForm.

Definition at line 227 of file pbilinearform.hpp.

virtual mfem::ParMixedBilinearForm::~ParMixedBilinearForm ( )

inlinevirtual

Definition at line 247 of file pbilinearform.hpp.

Member Function Documentation

HypreParMatrix * mfem::ParMixedBilinearForm::ParallelAssemble ( )

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

Definition at line 438 of file pbilinearform.cpp.

void mfem::ParMixedBilinearForm::ParallelAssemble ( OperatorHandle & A )

Returns the matrix assembled on the true dofs, i.e. A = P_test^t A_local P_trial, in the format (type id) specified by A.

Definition at line 457 of file pbilinearform.cpp.

void mfem::ParMixedBilinearForm::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 478 of file pbilinearform.cpp.

Member Data Documentation

ParFiniteElementSpace* mfem::ParMixedBilinearForm::test_pfes

protected

Points to the same object as test_fes.

Definition at line 194 of file pbilinearform.hpp.

ParFiniteElementSpace* mfem::ParMixedBilinearForm::trial_pfes

protected

Points to the same object as trial_fes.

Definition at line 192 of file pbilinearform.hpp.

ParGridFunction mfem::ParMixedBilinearForm::X

mutableprotected

Auxiliary objects used in TrueAddMult().

Definition at line 196 of file pbilinearform.hpp.

ParGridFunction mfem::ParMixedBilinearForm::Y

mutableprotected

Definition at line 196 of file pbilinearform.hpp.

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

fem/pbilinearform.hpp
fem/pbilinearform.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation