#include <bilininteg.hpp>

Inheritance diagram for mfem::MassIntegrator:

Collaboration diagram for mfem::MassIntegrator:

Classes
struct	Kernels

Public Types
using	ApplyKernelType

using	DiagonalKernelType

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

Public Member Functions
	MFEM_REGISTER_KERNELS (ApplyPAKernels, ApplyKernelType,(int, int, int))

	MFEM_REGISTER_KERNELS (DiagonalPAKernels, DiagonalKernelType,(int, int, int))

	MassIntegrator (const IntegrationRule *ir=nullptr)

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

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

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

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

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

void	AssemblePABoundary (const FiniteElementSpace &fes) override

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

virtual void	AssembleEABoundary (const FiniteElementSpace &fes, Vector &emat, const bool add) override

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

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

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

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

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

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

const Coefficient *	GetCoefficient () const

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

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	AssembleEAInteriorFaces (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes, Vector &emat, const bool add=true)
	Method defining element assembly for mixed trace integrators.

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_fe1, const FiniteElement &test_fe1, const FiniteElement &trial_fe2, const FiniteElement &test_fe2, 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)

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

void	AssembleFaceVector (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Tr, const Vector &elfun, Vector &elvect) override
	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.

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

void	AssembleFaceGrad (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Tr, const Vector &elfun, DenseMatrix &elmat) override
	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
void	SetIntegrationMode (Mode m)

bool	Patchwise () const

void	SetPAMemoryType (MemoryType mt)

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 ()

Public Member Functions inherited from mfem::Integrator
	Integrator (const IntegrationRule *ir=NULL)
	Create a new Integrator, optionally providing a prescribed quadrature rule to use in assembly.

virtual void	SetIntRule (const IntegrationRule *ir)
	Prescribe a fixed IntegrationRule to use, or set to null to let the integrator choose an appropriate rule.

void	SetIntegrationRule (const IntegrationRule &ir)
	Prescribe a fixed IntegrationRule to use. Sets the NURBS patch integration rule to null.

void	SetNURBSPatchIntRule (NURBSMeshRules *pr)
	Sets an integration rule for use on NURBS patches.

bool	HasNURBSPatchIntRule () const
	Check if a NURBS patch integration rule has been set.

const IntegrationRule *	GetIntRule () const
	Directly return the IntRule pointer (possibly null) without checking for NURBS patch rules or falling back on a default.

const IntegrationRule *	GetIntegrationRule () const
	Equivalent to GetIntRule, but retained for backward compatibility with applications.

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

template<int DIM, int D1D, int Q1D>
static void	AddSpecialization ()

Protected Member Functions
void	AssembleEA_ (Vector &ea, const bool add)

const IntegrationRule *	GetDefaultIntegrationRule (const FiniteElement &trial_fe, const FiniteElement &test_fe, const ElementTransformation &trans) const override
	Subclasses should override to choose a default integration rule.

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

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

Protected Member Functions inherited from mfem::Integrator
const IntegrationRule *	GetIntegrationRule (const FiniteElement &trial_fe, const FiniteElement &test_fe, const ElementTransformation &trans) const
	Returns an integration rule based on the arguments and internal state of the Integrator object.

const IntegrationRule *	GetIntegrationRule (const FiniteElement &el, const ElementTransformation &trans) const
	Returns an integration rule based on the arguments and internal state. (Version for identical trial_fe and test_fe)

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
Mode	integrationMode = Mode::ELEMENTWISE

ceed::Operator *	ceedOp

MemoryType	pa_mt = MemoryType::DEFAULT

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

NURBSMeshRules *	patchRules = nullptr

Friends
class	DGMassInverse

Detailed Description

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

Definition at line 2353 of file bilininteg.hpp.

Member Typedef Documentation

◆ ApplyKernelType

using mfem::MassIntegrator::ApplyKernelType

Initial value:

 void(*)(const int, const Array<real_t>&,
                                   const Array<real_t>&, const Vector&,
                                   const Vector&, Vector&, const int, const int)

Definition at line 2373 of file bilininteg.hpp.

◆ DiagonalKernelType

using mfem::MassIntegrator::DiagonalKernelType

Initial value:

  void(*)(const int, const Array<real_t>&,
                                       const Vector&, Vector&, const int,
                                       const int)

Definition at line 2377 of file bilininteg.hpp.

Constructor & Destructor Documentation

◆ MassIntegrator() [1/2]

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

Definition at line 1339 of file bilininteg.cpp.

◆ MassIntegrator() [2/2]

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

Construct a mass integrator with coefficient q.

Definition at line 1345 of file bilininteg.cpp.

Member Function Documentation

◆ AddMultMF()

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

overridevirtual

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.

Definition at line 46 of file bilininteg_mass_mf.cpp.

◆ AddMultPA()

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

overridevirtual

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.

Definition at line 204 of file bilininteg_mass_pa.cpp.

◆ AddMultTransposePA()

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

overridevirtual

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.

Definition at line 235 of file bilininteg_mass_pa.cpp.

◆ AddSpecialization()

template<int DIM, int D1D, int Q1D>

static void mfem::MassIntegrator::AddSpecialization ( )

inlinestatic

Definition at line 2433 of file bilininteg.hpp.

◆ AssembleDiagonalMF()

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

overridevirtual

Assemble diagonal and add it to Vector diag.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 59 of file bilininteg_mass_mf.cpp.

◆ AssembleDiagonalPA()

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

overridevirtual

Assemble diagonal and add it to Vector diag.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 191 of file bilininteg_mass_pa.cpp.

◆ AssembleEA()

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

overridevirtual

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.

Definition at line 78 of file bilininteg_mass_ea.cpp.

◆ AssembleEA_()

void mfem::MassIntegrator::AssembleEA_	(	Vector &	ea,
		const bool	add )

protected

Definition at line 20 of file bilininteg_mass_ea.cpp.

◆ AssembleEABoundary()

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

overridevirtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 86 of file bilininteg_mass_ea.cpp.

◆ AssembleElementMatrix()

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

overridevirtual

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

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 1351 of file bilininteg.cpp.

◆ AssembleElementMatrix2()

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

overridevirtual

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 1385 of file bilininteg.cpp.

◆ AssembleMF()

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

overridevirtual

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.

Definition at line 19 of file bilininteg_mass_mf.cpp.

◆ AssemblePA() [1/2]

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

overridevirtual

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.

Definition at line 24 of file bilininteg_mass_pa.cpp.

◆ AssemblePA() [2/2]

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

overridevirtual

Used with BilinearFormIntegrators that have different spaces.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 52 of file bilininteg.cpp.

◆ AssemblePABoundary()

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

overridevirtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 117 of file bilininteg_mass_pa.cpp.

◆ GetCoefficient()

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

inline

Definition at line 2430 of file bilininteg.hpp.

◆ GetDefaultIntegrationRule()

const IntegrationRule * mfem::MassIntegrator::GetDefaultIntegrationRule	(	const FiniteElement &	trial_fe,
		const FiniteElement &	test_fe,
		const ElementTransformation &	trans ) const

inlineoverrideprotectedvirtual

Subclasses should override to choose a default integration rule.

This method is intended to be overridden by subclasses to choose an appropriate integration rule based on the finite element spaces and/or element transformation. The trial_fe and test_fe should be equal for linear forms. The default base-class implementation returns null, which assumes that an appropriate rule is provided by another means, or that null integration rules are handled appropriately by the caller.

Reimplemented from mfem::Integrator.

Definition at line 2440 of file bilininteg.hpp.

◆ GetRule()

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

static

Definition at line 1421 of file bilininteg.cpp.

◆ MFEM_REGISTER_KERNELS() [1/2]

mfem::MassIntegrator::MFEM_REGISTER_KERNELS	(	ApplyPAKernels	,
		ApplyKernelType	,
		(int, int, int)	)

◆ MFEM_REGISTER_KERNELS() [2/2]

mfem::MassIntegrator::MFEM_REGISTER_KERNELS	(	DiagonalPAKernels	,
		DiagonalKernelType	,
		(int, int, int)	)

◆ SupportsCeed()

bool mfem::MassIntegrator::SupportsCeed ( ) const

inlineoverridevirtual

Indicates whether this integrator can use a Ceed backend.

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 2428 of file bilininteg.hpp.

Friends And Related Symbol Documentation

◆ DGMassInverse

friend class DGMassInverse

friend

Definition at line 2355 of file bilininteg.hpp.

Member Data Documentation

◆ dim

int mfem::MassIntegrator::dim

protected

Definition at line 2367 of file bilininteg.hpp.

◆ dofs1D

int mfem::MassIntegrator::dofs1D

protected

Definition at line 2367 of file bilininteg.hpp.

◆ face_geom

const FaceGeometricFactors* mfem::MassIntegrator::face_geom

protected

Not owned.

Definition at line 2366 of file bilininteg.hpp.

◆ fespace

const FiniteElementSpace* mfem::MassIntegrator::fespace

protected

Definition at line 2362 of file bilininteg.hpp.

◆ geom

const GeometricFactors* mfem::MassIntegrator::geom

protected

Not owned.

Definition at line 2365 of file bilininteg.hpp.

◆ maps

const DofToQuad* mfem::MassIntegrator::maps

protected

Not owned.

Definition at line 2364 of file bilininteg.hpp.

◆ ne

int mfem::MassIntegrator::ne

protected

Definition at line 2367 of file bilininteg.hpp.

◆ nq

int mfem::MassIntegrator::nq

protected

Definition at line 2367 of file bilininteg.hpp.

◆ pa_data

Vector mfem::MassIntegrator::pa_data

protected

Definition at line 2363 of file bilininteg.hpp.

◆ Q

Coefficient* mfem::MassIntegrator::Q

protected

Definition at line 2360 of file bilininteg.hpp.

◆ quad1D

int mfem::MassIntegrator::quad1D

protected

Definition at line 2367 of file bilininteg.hpp.

◆ shape

Vector mfem::MassIntegrator::shape

protected

Definition at line 2358 of file bilininteg.hpp.

◆ te_shape

Vector mfem::MassIntegrator::te_shape

protected

Definition at line 2358 of file bilininteg.hpp.

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

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ ApplyKernelType

◆ DiagonalKernelType

Constructor & Destructor Documentation

◆ MassIntegrator() [1/2]

◆ MassIntegrator() [2/2]

Member Function Documentation

◆ AddMultMF()

◆ AddMultPA()

◆ AddMultTransposePA()

◆ AddSpecialization()

◆ AssembleDiagonalMF()

◆ AssembleDiagonalPA()

◆ AssembleEA()

◆ AssembleEA_()

◆ AssembleEABoundary()

◆ AssembleElementMatrix()

◆ AssembleElementMatrix2()

◆ AssembleMF()

◆ AssemblePA() [1/2]

◆ AssemblePA() [2/2]

◆ AssemblePABoundary()

◆ GetCoefficient()

◆ GetDefaultIntegrationRule()

◆ GetRule()

◆ MFEM_REGISTER_KERNELS() [1/2]

◆ MFEM_REGISTER_KERNELS() [2/2]

◆ 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