#include <bilininteg.hpp>

Inheritance diagram for mfem::MassIntegrator:

Collaboration diagram for mfem::MassIntegrator:

Public Member Functions
	MassIntegrator (const IntegrationRule *ir=NULL)

	MassIntegrator (Coefficient &q, const IntegrationRule *ir=NULL)
	Construct a mass integrator with coefficient q.

virtual void	AssembleElementMatrix (const FiniteElement &el, ElementTransformation &Trans, DenseMatrix &elmat)

virtual void	AssembleElementMatrix2 (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans, DenseMatrix &elmat)

virtual void	AssembleMF (const FiniteElementSpace &fes)
	Method defining matrix-free assembly.

virtual void	AssemblePA (const FiniteElementSpace &fes)
	Method defining partial assembly.

virtual void	AssemblePABoundary (const FiniteElementSpace &fes)

virtual void	AssembleEA (const FiniteElementSpace &fes, Vector &emat, const bool add)
	Method defining element assembly.

virtual void	AssembleDiagonalPA (Vector &diag)
	Assemble diagonal and add it to Vector diag.

virtual void	AssembleDiagonalMF (Vector &diag)
	Assemble diagonal and add it to Vector diag.

virtual void	AddMultMF (const Vector &, Vector &) const

virtual void	AddMultPA (const Vector &, Vector &) const
	Method for partially assembled action.

virtual void	AddMultTransposePA (const Vector &, Vector &) const
	Method for partially assembled transposed action.

bool	SupportsCeed () const
	Indicates whether this integrator can use a Ceed backend.

const Coefficient *	GetCoefficient () const

virtual void	AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes)

Public Member Functions inherited from mfem::BilinearFormIntegrator
virtual void	AssembleNURBSPA (const FiniteElementSpace &fes)
	Method defining partial assembly on NURBS patches.

virtual void	AssemblePAInteriorFaces (const FiniteElementSpace &fes)

virtual void	AssemblePABoundaryFaces (const FiniteElementSpace &fes)

virtual void	AssembleDiagonalPA_ADAt (const Vector &D, Vector &diag)
	Assemble diagonal of \(A D A^T\) ( \(A\) is this integrator) and add it to diag.

virtual void	AddMultNURBSPA (const Vector &x, Vector &y) const
	Method for partially assembled action on NURBS patches.

virtual void	AddMultTransposeMF (const Vector &x, Vector &y) const

virtual void	AssembleEAInteriorFaces (const FiniteElementSpace &fes, Vector &ea_data_int, Vector &ea_data_ext, const bool add=true)

virtual void	AssembleEABoundaryFaces (const FiniteElementSpace &fes, Vector &ea_data_bdr, const bool add=true)

virtual void	AssemblePatchMatrix (const int patch, const FiniteElementSpace &fes, SparseMatrix *&smat)

virtual void	AssembleFaceMatrix (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Trans, DenseMatrix &elmat)

virtual void	AssembleFaceMatrix (const FiniteElement &trial_face_fe, const FiniteElement &test_fe1, const FiniteElement &test_fe2, FaceElementTransformations &Trans, DenseMatrix &elmat)

virtual void	AssembleTraceFaceMatrix (int elem, const FiniteElement &trial_face_fe, const FiniteElement &test_fe, FaceElementTransformations &Trans, DenseMatrix &elmat)

virtual void	AssembleElementVector (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, Vector &elvect)
	Perform the local action of the BilinearFormIntegrator. Note that the default implementation in the base class is general but not efficient.

virtual void	AssembleFaceVector (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Tr, const Vector &elfun, Vector &elvect)
	Perform the local action of the BilinearFormIntegrator resulting from a face integral term. Note that the default implementation in the base class is general but not efficient.

virtual void	AssembleElementGrad (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, DenseMatrix &elmat)
	Assemble the local gradient matrix.

virtual void	AssembleFaceGrad (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Tr, const Vector &elfun, DenseMatrix &elmat)
	Assemble the local action of the gradient of the NonlinearFormIntegrator resulting from a face integral term.

virtual void	ComputeElementFlux (const FiniteElement &el, ElementTransformation &Trans, Vector &u, const FiniteElement &fluxelem, Vector &flux, bool with_coef=true, const IntegrationRule *ir=NULL)
	Virtual method required for Zienkiewicz-Zhu type error estimators.

virtual real_t	ComputeFluxEnergy (const FiniteElement &fluxelem, ElementTransformation &Trans, Vector &flux, Vector *d_energy=NULL)
	Virtual method required for Zienkiewicz-Zhu type error estimators.

virtual bool	RequiresFaceNormalDerivatives () const
	For bilinear forms on element faces, specifies if the normal derivatives are needed on the faces or just the face restriction.

virtual void	AddMultPAFaceNormalDerivatives (const Vector &x, const Vector &dxdn, Vector &y, Vector &dydn) const
	Method for partially assembled action.

virtual	~BilinearFormIntegrator ()

Public Member Functions inherited from mfem::NonlinearFormIntegrator
virtual void	SetIntRule (const IntegrationRule *ir)
	Prescribe a fixed IntegrationRule to use (when ir != NULL) or let the integrator choose (when ir == NULL).

void	SetIntegrationMode (Mode m)

void	SetNURBSPatchIntRule (NURBSMeshRules *pr)
	For patchwise integration, SetNURBSPatchIntRule must be called.

bool	HasNURBSPatchIntRule () const

bool	Patchwise () const

void	SetIntegrationRule (const IntegrationRule &ir)
	Prescribe a fixed IntegrationRule to use.

void	SetPAMemoryType (MemoryType mt)

const IntegrationRule *	GetIntegrationRule () const
	Get the integration rule of the integrator (possibly NULL).

virtual real_t	GetElementEnergy (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun)
	Compute the local energy.

virtual void	AssembleGradPA (const Vector &x, const FiniteElementSpace &fes)
	Prepare the integrator for partial assembly (PA) gradient evaluations on the given FE space fes at the state x.

virtual real_t	GetLocalStateEnergyPA (const Vector &x) const
	Compute the local (to the MPI rank) energy with partial assembly.

virtual void	AddMultGradPA (const Vector &x, Vector &y) const
	Method for partially assembled gradient action.

virtual void	AssembleGradDiagonalPA (Vector &diag) const
	Method for computing the diagonal of the gradient with partial assembly.

ceed::Operator &	GetCeedOp ()

virtual	~NonlinearFormIntegrator ()

Static Public Member Functions
static const IntegrationRule &	GetRule (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans)

Protected Attributes
Vector	shape

Vector	te_shape

Coefficient *	Q

const FiniteElementSpace *	fespace

Vector	pa_data

const DofToQuad *	maps
	Not owned.

const GeometricFactors *	geom
	Not owned.

const FaceGeometricFactors *	face_geom
	Not owned.

int	dim

int	ne

int	nq

int	dofs1D

int	quad1D

Protected Attributes inherited from mfem::NonlinearFormIntegrator
const IntegrationRule *	IntRule

Mode	integrationMode = Mode::ELEMENTWISE

NURBSMeshRules *	patchRules = nullptr

ceed::Operator *	ceedOp

MemoryType	pa_mt = MemoryType::DEFAULT

Friends
class	DGMassInverse

Additional Inherited Members
Public Types inherited from mfem::NonlinearFormIntegrator
enum	Mode { ELEMENTWISE = 0 , PATCHWISE = 1 , PATCHWISE_REDUCED = 2 }

Protected Member Functions inherited from mfem::BilinearFormIntegrator
	BilinearFormIntegrator (const IntegrationRule *ir=NULL)

Protected Member Functions inherited from mfem::NonlinearFormIntegrator
	NonlinearFormIntegrator (const IntegrationRule *ir=NULL)

Detailed Description

Class for local mass matrix assembling \(a(u,v) := (Q u, v)\)

Definition at line 2293 of file bilininteg.hpp.

Constructor & Destructor Documentation

◆ MassIntegrator() [1/2]

mfem::MassIntegrator::MassIntegrator ( const IntegrationRule * ir = NULL )

inline

Definition at line 2310 of file bilininteg.hpp.

◆ MassIntegrator() [2/2]

mfem::MassIntegrator::MassIntegrator	(	Coefficient &	q,
		const IntegrationRule *	ir = NULL )

inline

Construct a mass integrator with coefficient q.

Definition at line 2314 of file bilininteg.hpp.

Member Function Documentation

◆ AddMultMF()

virtual void mfem::MassIntegrator::AddMultMF	(	const Vector &	x,
		Vector &	y ) const

virtual

Perform the action of integrator on the input x and add the result to the output y. Both x and y are E-vectors, i.e. they represent the element-wise discontinuous version of the FE space.

This method can be called only after the method AssembleMF() has been called.

Reimplemented from mfem::BilinearFormIntegrator.

◆ AddMultPA()

virtual void mfem::MassIntegrator::AddMultPA	(	const Vector &	x,
		Vector &	y ) const

virtual

Method for partially assembled action.

Perform the action of integrator on the input x and add the result to the output y. Both x and y are E-vectors, i.e. they represent the element-wise discontinuous version of the FE space.

This method can be called only after the method AssemblePA() has been called.

Reimplemented from mfem::BilinearFormIntegrator.

◆ AddMultTransposePA()

virtual void mfem::MassIntegrator::AddMultTransposePA	(	const Vector &	x,
		Vector &	y ) const

virtual

Method for partially assembled transposed action.

Perform the transpose action of integrator on the input x and add the result to the output y. Both x and y are E-vectors, i.e. they represent the element-wise discontinuous version of the FE space.

This method can be called only after the method AssemblePA() has been called.

Reimplemented from mfem::BilinearFormIntegrator.

◆ AssembleDiagonalMF()

virtual void mfem::MassIntegrator::AssembleDiagonalMF ( Vector & diag )

virtual

Assemble diagonal and add it to Vector diag.

Reimplemented from mfem::BilinearFormIntegrator.

◆ AssembleDiagonalPA()

virtual void mfem::MassIntegrator::AssembleDiagonalPA ( Vector & diag )

virtual

Assemble diagonal and add it to Vector diag.

Reimplemented from mfem::BilinearFormIntegrator.

◆ AssembleEA()

virtual void mfem::MassIntegrator::AssembleEA	(	const FiniteElementSpace &	fes,
		Vector &	emat,
		const bool	add )

virtual

Method defining element assembly.

The result of the element assembly is added to the emat Vector if add is true. Otherwise, if add is false, we set emat.

Reimplemented from mfem::BilinearFormIntegrator.

◆ AssembleElementMatrix()

void mfem::MassIntegrator::AssembleElementMatrix	(	const FiniteElement &	el,
		ElementTransformation &	Trans,
		DenseMatrix &	elmat )

virtual

Given a particular Finite Element computes the element mass matrix elmat.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 1294 of file bilininteg.cpp.

◆ AssembleElementMatrix2()

void mfem::MassIntegrator::AssembleElementMatrix2	(	const FiniteElement &	trial_fe,
		const FiniteElement &	test_fe,
		ElementTransformation &	Trans,
		DenseMatrix &	elmat )

virtual

Compute the local matrix representation of a bilinear form \(a(u,v)\) defined on different trial (given by \(u\)) and test (given by \(v\)) spaces. The rows in the local matrix correspond to the test dofs and the columns – to the trial dofs.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 1328 of file bilininteg.cpp.

◆ AssembleMF()

virtual void mfem::MassIntegrator::AssembleMF ( const FiniteElementSpace & fes )

virtual

Method defining matrix-free assembly.

Used with BilinearFormIntegrators that have different spaces. The result of fully matrix-free assembly is stored internally so that it can be used later in the methods AddMultMF() and AddMultTransposeMF().

Reimplemented from mfem::BilinearFormIntegrator.

◆ AssemblePA() [1/2]

virtual void mfem::MassIntegrator::AssemblePA ( const FiniteElementSpace & fes )

virtual

Method defining partial assembly.

The result of the partial assembly is stored internally so that it can be used later in the methods AddMultPA() and AddMultTransposePA().

Reimplemented from mfem::BilinearFormIntegrator.

◆ AssemblePA() [2/2]

void mfem::BilinearFormIntegrator::AssemblePA	(	const FiniteElementSpace &	trial_fes,
		const FiniteElementSpace &	test_fes )

virtual

Used with BilinearFormIntegrators that have different spaces.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 50 of file bilininteg.cpp.

◆ AssemblePABoundary()

virtual void mfem::MassIntegrator::AssemblePABoundary ( const FiniteElementSpace & fes )

virtual

Reimplemented from mfem::BilinearFormIntegrator.

◆ GetCoefficient()

const Coefficient * mfem::MassIntegrator::GetCoefficient ( ) const

inline

Definition at line 2353 of file bilininteg.hpp.

◆ GetRule()

const IntegrationRule & mfem::MassIntegrator::GetRule	(	const FiniteElement &	trial_fe,
		const FiniteElement &	test_fe,
		ElementTransformation &	Trans )

static

Definition at line 1366 of file bilininteg.cpp.

◆ SupportsCeed()

bool mfem::MassIntegrator::SupportsCeed ( ) const

inlinevirtual

Indicates whether this integrator can use a Ceed backend.

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 2351 of file bilininteg.hpp.

Friends And Related Symbol Documentation

◆ DGMassInverse

friend class DGMassInverse

friend

Definition at line 2295 of file bilininteg.hpp.

Member Data Documentation

◆ dim

int mfem::MassIntegrator::dim

protected

Definition at line 2307 of file bilininteg.hpp.

◆ dofs1D

int mfem::MassIntegrator::dofs1D

protected

Definition at line 2307 of file bilininteg.hpp.

◆ face_geom

const FaceGeometricFactors* mfem::MassIntegrator::face_geom

protected

Not owned.

Definition at line 2306 of file bilininteg.hpp.

◆ fespace

const FiniteElementSpace* mfem::MassIntegrator::fespace

protected

Definition at line 2302 of file bilininteg.hpp.

◆ geom

const GeometricFactors* mfem::MassIntegrator::geom

protected

Not owned.

Definition at line 2305 of file bilininteg.hpp.

◆ maps

const DofToQuad* mfem::MassIntegrator::maps

protected

Not owned.

Definition at line 2304 of file bilininteg.hpp.

◆ ne

int mfem::MassIntegrator::ne

protected

Definition at line 2307 of file bilininteg.hpp.

◆ nq

int mfem::MassIntegrator::nq

protected

Definition at line 2307 of file bilininteg.hpp.

◆ pa_data

Vector mfem::MassIntegrator::pa_data

protected

Definition at line 2303 of file bilininteg.hpp.

◆ Q

Coefficient* mfem::MassIntegrator::Q

protected

Definition at line 2300 of file bilininteg.hpp.

◆ quad1D

int mfem::MassIntegrator::quad1D

protected

Definition at line 2307 of file bilininteg.hpp.

◆ shape

Vector mfem::MassIntegrator::shape

protected

Definition at line 2298 of file bilininteg.hpp.

◆ te_shape

Vector mfem::MassIntegrator::te_shape

protected

Definition at line 2298 of file bilininteg.hpp.

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

fem/bilininteg.hpp
fem/bilininteg.cpp

Public Member Functions

Static Public Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MassIntegrator() [1/2]

◆ MassIntegrator() [2/2]

Member Function Documentation

◆ AddMultMF()

◆ AddMultPA()

◆ AddMultTransposePA()

◆ AssembleDiagonalMF()

◆ AssembleDiagonalPA()

◆ AssembleEA()

◆ AssembleElementMatrix()

◆ AssembleElementMatrix2()

◆ AssembleMF()

◆ AssemblePA() [1/2]

◆ AssemblePA() [2/2]

◆ AssemblePABoundary()

◆ GetCoefficient()

◆ GetRule()

◆ SupportsCeed()

Friends And Related Symbol Documentation

◆ DGMassInverse

Member Data Documentation

◆ dim

◆ dofs1D

◆ face_geom

◆ fespace

◆ geom

◆ maps

◆ ne

◆ nq

◆ pa_data

◆ Q

◆ quad1D

◆ shape

◆ te_shape