MFEM  v4.6.0
Finite element discretization library
Public Member Functions | List of all members
mfem::SumIntegrator Class Reference

Integrator defining a sum of multiple Integrators. More...

#include <bilininteg.hpp>

Inheritance diagram for mfem::SumIntegrator:
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Collaboration diagram for mfem::SumIntegrator:
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Public Member Functions

 SumIntegrator (int own_integs=1)
 
virtual void SetIntRule (const IntegrationRule *ir)
 Prescribe a fixed IntegrationRule to use (when ir != NULL) or let the integrator choose (when ir == NULL). More...
 
void AddIntegrator (BilinearFormIntegrator *integ)
 
virtual void AssembleElementMatrix (const FiniteElement &el, ElementTransformation &Trans, DenseMatrix &elmat)
 Given a particular Finite Element computes the element matrix elmat. More...
 
virtual void AssembleElementMatrix2 (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans, DenseMatrix &elmat)
 
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 AssemblePA (const FiniteElementSpace &fes)
 Method defining partial assembly. More...
 
virtual void AssembleDiagonalPA (Vector &diag)
 Assemble diagonal and add it to Vector diag. More...
 
virtual void AssemblePAInteriorFaces (const FiniteElementSpace &fes)
 
virtual void AssemblePABoundaryFaces (const FiniteElementSpace &fes)
 
virtual void AddMultTransposePA (const Vector &x, Vector &y) const
 Method for partially assembled transposed action. More...
 
virtual void AddMultPA (const Vector &x, Vector &y) const
 Method for partially assembled action. More...
 
virtual void AssembleMF (const FiniteElementSpace &fes)
 Method defining matrix-free assembly. More...
 
virtual void AddMultMF (const Vector &x, Vector &y) const
 
virtual void AddMultTransposeMF (const Vector &x, Vector &y) const
 
virtual void AssembleDiagonalMF (Vector &diag)
 Assemble diagonal and add it to Vector diag. More...
 
virtual void AssembleEA (const FiniteElementSpace &fes, Vector &emat, const bool add)
 Method defining element assembly. More...
 
virtual void AssembleEAInteriorFaces (const FiniteElementSpace &fes, Vector &ea_data_int, Vector &ea_data_ext, const bool add)
 
virtual void AssembleEABoundaryFaces (const FiniteElementSpace &fes, Vector &ea_data_bdr, const bool add)
 
virtual ~SumIntegrator ()
 
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 AssemblePA (const FiniteElementSpace &fes)
 Method defining partial assembly. More...
 
virtual void AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes)
 
virtual void AssemblePA (const FiniteElementSpace &fes)
 Method defining partial assembly. More...
 
virtual void AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes)
 
- Public Member Functions inherited from mfem::BilinearFormIntegrator
virtual void AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes)
 
virtual void AssembleNURBSPA (const FiniteElementSpace &fes)
 Method defining partial assembly on NURBS patches. More...
 
virtual void AssemblePABoundary (const FiniteElementSpace &fes)
 
virtual void AssembleDiagonalPA_ADAt (const Vector &D, Vector &diag)
 Assemble diagonal of ADA^T (A is this integrator) and add it to diag. More...
 
virtual void AddMultNURBSPA (const Vector &x, Vector &y) const
 Method for partially assembled action on NURBS patches. More...
 
virtual void AssemblePatchMatrix (const int patch, const FiniteElementSpace &fes, SparseMatrix *&smat)
 
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. More...
 
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. More...
 
virtual void AssembleElementGrad (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, DenseMatrix &elmat)
 Assemble the local gradient matrix. More...
 
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. More...
 
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. More...
 
virtual double ComputeFluxEnergy (const FiniteElement &fluxelem, ElementTransformation &Trans, Vector &flux, Vector *d_energy=NULL)
 Virtual method required for Zienkiewicz-Zhu type error estimators. More...
 
virtual ~BilinearFormIntegrator ()
 
virtual void AssemblePA (const FiniteElementSpace &fes)
 Method defining partial assembly. More...
 
virtual void AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes)
 
- Public Member Functions inherited from mfem::NonlinearFormIntegrator
void SetIntegrationMode (Mode m)
 
void SetNURBSPatchIntRule (NURBSMeshRules *pr)
 For patchwise integration, SetNURBSPatchIntRule must be called. More...
 
bool HasNURBSPatchIntRule () const
 
bool Patchwise () const
 
void SetIntegrationRule (const IntegrationRule &ir)
 Prescribe a fixed IntegrationRule to use. More...
 
void SetPAMemoryType (MemoryType mt)
 
const IntegrationRuleGetIntegrationRule () const
 Get the integration rule of the integrator (possibly NULL). More...
 
virtual double GetElementEnergy (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun)
 Compute the local energy. More...
 
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. More...
 
virtual double GetLocalStateEnergyPA (const Vector &x) const
 Compute the local (to the MPI rank) energy with partial assembly. More...
 
virtual void AddMultGradPA (const Vector &x, Vector &y) const
 Method for partially assembled gradient action. More...
 
virtual void AssembleGradDiagonalPA (Vector &diag) const
 Method for computing the diagonal of the gradient with partial assembly. More...
 
virtual bool SupportsCeed () const
 Indicates whether this integrator can use a Ceed backend. More...
 
ceed::OperatorGetCeedOp ()
 
virtual ~NonlinearFormIntegrator ()
 

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)
 
- Protected Attributes inherited from mfem::NonlinearFormIntegrator
const IntegrationRuleIntRule
 
Mode integrationMode = Mode::ELEMENTWISE
 
NURBSMeshRulespatchRules = nullptr
 
ceed::OperatorceedOp
 
MemoryType pa_mt = MemoryType::DEFAULT
 

Detailed Description

Integrator defining a sum of multiple Integrators.

Definition at line 391 of file bilininteg.hpp.

Constructor & Destructor Documentation

◆ SumIntegrator()

mfem::SumIntegrator::SumIntegrator ( int  own_integs = 1)
inline

Definition at line 399 of file bilininteg.hpp.

◆ ~SumIntegrator()

mfem::SumIntegrator::~SumIntegrator ( )
virtual

Definition at line 446 of file bilininteg.cpp.

Member Function Documentation

◆ AddIntegrator()

void mfem::SumIntegrator::AddIntegrator ( BilinearFormIntegrator integ)
inline

Definition at line 403 of file bilininteg.hpp.

◆ AddMultMF()

void mfem::SumIntegrator::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.

Definition at line 392 of file bilininteg.cpp.

◆ AddMultPA()

void mfem::SumIntegrator::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.

Definition at line 368 of file bilininteg.cpp.

◆ AddMultTransposeMF()

void mfem::SumIntegrator::AddMultTransposeMF ( const Vector x,
Vector y 
) const
virtual

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 400 of file bilininteg.cpp.

◆ AddMultTransposePA()

void mfem::SumIntegrator::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.

Definition at line 376 of file bilininteg.cpp.

◆ AssembleDiagonalMF()

void mfem::SumIntegrator::AssembleDiagonalMF ( Vector diag)
virtual

Assemble diagonal and add it to Vector diag.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 408 of file bilininteg.cpp.

◆ AssembleDiagonalPA()

void mfem::SumIntegrator::AssembleDiagonalPA ( Vector diag)
virtual

Assemble diagonal and add it to Vector diag.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 344 of file bilininteg.cpp.

◆ AssembleEA()

void mfem::SumIntegrator::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.

Definition at line 416 of file bilininteg.cpp.

◆ AssembleEABoundaryFaces()

void mfem::SumIntegrator::AssembleEABoundaryFaces ( const FiniteElementSpace fes,
Vector ea_data_bdr,
const bool  add 
)
virtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 436 of file bilininteg.cpp.

◆ AssembleEAInteriorFaces()

void mfem::SumIntegrator::AssembleEAInteriorFaces ( const FiniteElementSpace fes,
Vector ea_data_int,
Vector ea_data_ext,
const bool  add 
)
virtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 425 of file bilininteg.cpp.

◆ AssembleElementMatrix()

void mfem::SumIntegrator::AssembleElementMatrix ( const FiniteElement el,
ElementTransformation Trans,
DenseMatrix elmat 
)
virtual

Given a particular Finite Element computes the element matrix elmat.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 280 of file bilininteg.cpp.

◆ AssembleElementMatrix2()

void mfem::SumIntegrator::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 293 of file bilininteg.cpp.

◆ AssembleFaceMatrix() [1/4]

void mfem::BilinearFormIntegrator::AssembleFaceMatrix

Abstract method used for assembling TraceFaceIntegrators in a MixedBilinearForm.

Definition at line 172 of file bilininteg.cpp.

◆ AssembleFaceMatrix() [2/4]

void mfem::BilinearFormIntegrator::AssembleFaceMatrix

Definition at line 164 of file bilininteg.cpp.

◆ AssembleFaceMatrix() [3/4]

void mfem::SumIntegrator::AssembleFaceMatrix ( const FiniteElement el1,
const FiniteElement el2,
FaceElementTransformations Trans,
DenseMatrix elmat 
)
virtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 307 of file bilininteg.cpp.

◆ AssembleFaceMatrix() [4/4]

void mfem::SumIntegrator::AssembleFaceMatrix ( const FiniteElement trial_face_fe,
const FiniteElement test_fe1,
const FiniteElement test_fe2,
FaceElementTransformations Trans,
DenseMatrix elmat 
)
virtual

Abstract method used for assembling TraceFaceIntegrators in a MixedBilinearForm.

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 321 of file bilininteg.cpp.

◆ AssembleMF()

void mfem::SumIntegrator::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.

Definition at line 384 of file bilininteg.cpp.

◆ AssemblePA() [1/5]

void mfem::BilinearFormIntegrator::AssemblePA

Used with BilinearFormIntegrators that have different spaces.

Definition at line 35 of file bilininteg.cpp.

◆ AssemblePA() [2/5]

void mfem::BilinearFormIntegrator::AssemblePA

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().

Definition at line 23 of file bilininteg.cpp.

◆ AssemblePA() [3/5]

void mfem::NonlinearFormIntegrator::AssemblePA

The result of the partial assembly is stored internally so that it can be used later in the methods AddMultPA(). Used with BilinearFormIntegrators that have different spaces.

Definition at line 31 of file nonlininteg.cpp.

◆ AssemblePA() [4/5]

void mfem::NonlinearFormIntegrator::AssemblePA

Method defining partial assembly.

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

Definition at line 25 of file nonlininteg.cpp.

◆ AssemblePA() [5/5]

void mfem::SumIntegrator::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.

Definition at line 336 of file bilininteg.cpp.

◆ AssemblePABoundaryFaces()

void mfem::SumIntegrator::AssemblePABoundaryFaces ( const FiniteElementSpace fes)
virtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 360 of file bilininteg.cpp.

◆ AssemblePAInteriorFaces()

void mfem::SumIntegrator::AssemblePAInteriorFaces ( const FiniteElementSpace fes)
virtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 352 of file bilininteg.cpp.

◆ SetIntRule()

void mfem::SumIntegrator::SetIntRule ( const IntegrationRule ir)
virtual

Prescribe a fixed IntegrationRule to use (when ir != NULL) or let the integrator choose (when ir == NULL).

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 271 of file bilininteg.cpp.


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