Data and methods for partially-assembled mixed bilinear forms. More...

#include <bilinearform_ext.hpp>

Inheritance diagram for mfem::PAMixedBilinearFormExtension:

Collaboration diagram for mfem::PAMixedBilinearFormExtension:

Public Member Functions
	PAMixedBilinearFormExtension (MixedBilinearForm *form)

void	Assemble ()
	Partial assembly of all internal integrators. More...

void	FormRectangularSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, OperatorHandle &A)
	Setup OperatorHandle A to contain constrained linear operator. More...

void	FormRectangularLinearSystem (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, Vector &x, Vector &b, OperatorHandle &A, Vector &X, Vector &B)

void	Mult (const Vector &x, Vector &y) const
	y = A*x More...

void	AddMult (const Vector &x, Vector &y, const double c=1.0) const
	y += cAx More...

void	MultTranspose (const Vector &x, Vector &y) const
	y = A^T*x More...

void	AddMultTranspose (const Vector &x, Vector &y, const double c=1.0) const
	y += cA^Tx More...

void	AssembleDiagonal_ADAt (const Vector &D, Vector &diag) const
	Assemble the diagonal of ADA^T for a diagonal vector D. More...

void	Update ()
	Update internals for when a new MixedBilinearForm is given to this class. More...

Public Member Functions inherited from mfem::MixedBilinearFormExtension
	MixedBilinearFormExtension (MixedBilinearForm *form)

virtual MemoryClass	GetMemoryClass () const
	Return the MemoryClass preferred by the Operator. More...

virtual const Operator *	GetProlongation () const
	Get the finite element space prolongation matrix. More...

virtual const Operator *	GetRestriction () const
	Get the finite element space restriction matrix. More...

virtual const Operator *	GetOutputProlongation () const
	Get the output finite element space restriction matrix. More...

virtual const Operator *	GetOutputRestriction () const
	Get the output finite element space restriction matrix. 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 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...

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 Attributes
const FiniteElementSpace *	trialFes

const FiniteElementSpace *	testFes

Vector	localTrial

Vector	localTest

Vector	tempY

const Operator *	elem_restrict_trial

const Operator *	elem_restrict_test

Protected Attributes inherited from mfem::MixedBilinearFormExtension
MixedBilinearForm *	a
	Not owned. 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::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::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...

Detailed Description

Data and methods for partially-assembled mixed bilinear forms.

Definition at line 208 of file bilinearform_ext.hpp.

Constructor & Destructor Documentation

mfem::PAMixedBilinearFormExtension::PAMixedBilinearFormExtension ( MixedBilinearForm * form )

Definition at line 982 of file bilinearform_ext.cpp.

Member Function Documentation

void mfem::PAMixedBilinearFormExtension::AddMult	(	const Vector &	x,
		Vector &	y,
		const double	c = `1.0`
	)		const

virtual

y += c*A*x

Implements mfem::MixedBilinearFormExtension.

Definition at line 1103 of file bilinearform_ext.cpp.

void mfem::PAMixedBilinearFormExtension::AddMultTranspose	(	const Vector &	x,
		Vector &	y,
		const double	c = `1.0`
	)		const

virtual

y += c*A^T*x

Implements mfem::MixedBilinearFormExtension.

Definition at line 1135 of file bilinearform_ext.cpp.

void mfem::PAMixedBilinearFormExtension::Assemble ( )

virtual

Partial assembly of all internal integrators.

Implements mfem::MixedBilinearFormExtension.

Definition at line 993 of file bilinearform_ext.cpp.

void mfem::PAMixedBilinearFormExtension::AssembleDiagonal_ADAt	(	const Vector &	D,
		Vector &	diag
	)		const

virtual

Assemble the diagonal of ADA^T for a diagonal vector D.

Implements mfem::MixedBilinearFormExtension.

Definition at line 1160 of file bilinearform_ext.cpp.

void mfem::PAMixedBilinearFormExtension::FormRectangularLinearSystem	(	const Array< int > &	trial_tdof_list,
		const Array< int > &	test_tdof_list,
		Vector &	x,
		Vector &	b,
		OperatorHandle &	A,
		Vector &	X,
		Vector &	B
	)

virtual

Setup OperatorHandle A to contain constrained linear operator and eliminate columns corresponding to essential dofs from system, updating RHS B vector with the results.

Implements mfem::MixedBilinearFormExtension.

Definition at line 1044 of file bilinearform_ext.cpp.

void mfem::PAMixedBilinearFormExtension::FormRectangularSystemOperator	(	const Array< int > &	trial_tdof_list,
		const Array< int > &	test_tdof_list,
		OperatorHandle &	A
	)

virtual

Setup OperatorHandle A to contain constrained linear operator.

OperatorHandle A contains matrix-free constrained operator formed for RAP system where ess_tdof_list are in trial space and eliminated from "columns" of A.

Implements mfem::MixedBilinearFormExtension.

Definition at line 1033 of file bilinearform_ext.cpp.

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

virtual

y = A*x

Implements mfem::Operator.

Definition at line 1097 of file bilinearform_ext.cpp.

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

virtual

y = A^T*x

Reimplemented from mfem::Operator.

Definition at line 1128 of file bilinearform_ext.cpp.

void mfem::PAMixedBilinearFormExtension::Update ( )

virtual

Update internals for when a new MixedBilinearForm is given to this class.

Implements mfem::MixedBilinearFormExtension.

Definition at line 1009 of file bilinearform_ext.cpp.

Member Data Documentation

const Operator* mfem::PAMixedBilinearFormExtension::elem_restrict_test

protected

Definition at line 214 of file bilinearform_ext.hpp.

const Operator* mfem::PAMixedBilinearFormExtension::elem_restrict_trial

protected

Definition at line 213 of file bilinearform_ext.hpp.

Vector mfem::PAMixedBilinearFormExtension::localTest

mutableprotected

Definition at line 212 of file bilinearform_ext.hpp.

Vector mfem::PAMixedBilinearFormExtension::localTrial

mutableprotected

Definition at line 212 of file bilinearform_ext.hpp.

Vector mfem::PAMixedBilinearFormExtension::tempY

mutableprotected

Definition at line 212 of file bilinearform_ext.hpp.

const FiniteElementSpace * mfem::PAMixedBilinearFormExtension::testFes

protected

Definition at line 211 of file bilinearform_ext.hpp.

const FiniteElementSpace* mfem::PAMixedBilinearFormExtension::trialFes

protected

Definition at line 211 of file bilinearform_ext.hpp.

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

fem/bilinearform_ext.hpp
fem/bilinearform_ext.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation