MFEM  v4.2.0
Finite element discretization library
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mfem::DGDiffusionIntegrator Class Reference

#include <bilininteg.hpp>

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

 DGDiffusionIntegrator (const double s, const double k)
 
 DGDiffusionIntegrator (Coefficient &q, const double s, const double k)
 
 DGDiffusionIntegrator (MatrixCoefficient &q, const double s, const double k)
 
virtual void AssembleFaceMatrix (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Trans, DenseMatrix &elmat)
 
- Public Member Functions inherited from mfem::BilinearFormIntegrator
virtual void AssemblePA (const FiniteElementSpace &fes)
 Method defining partial assembly. More...
 
virtual void AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes)
 
virtual void AssemblePAInteriorFaces (const FiniteElementSpace &fes)
 
virtual void AssemblePABoundaryFaces (const FiniteElementSpace &fes)
 
virtual void AssembleDiagonalPA (Vector &diag)
 Assemble diagonal and add it to Vector diag. More...
 
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 AddMultPA (const Vector &x, Vector &y) const
 Method for partially assembled action. More...
 
virtual void AddMultTransposePA (const Vector &x, Vector &y) const
 Method for partially assembled transposed action. More...
 
virtual void AssembleEA (const FiniteElementSpace &fes, Vector &emat, const bool add=true)
 Method defining element assembly. 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 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 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 &trial_face_fe, const FiniteElement &test_fe1, const FiniteElement &test_fe2, 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)
 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 ()
 
- Public Member Functions inherited from mfem::NonlinearFormIntegrator
void SetIntRule (const IntegrationRule *ir)
 Prescribe a fixed IntegrationRule to use (when ir != NULL) or let the integrator choose (when ir == NULL). More...
 
void SetIntegrationRule (const IntegrationRule &irule)
 Prescribe a fixed IntegrationRule to use. More...
 
virtual double GetElementEnergy (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun)
 Compute the local energy. More...
 
virtual ~NonlinearFormIntegrator ()
 

Protected Attributes

CoefficientQ
 
MatrixCoefficientMQ
 
double sigma
 
double kappa
 
Vector shape1
 
Vector shape2
 
Vector dshape1dn
 
Vector dshape2dn
 
Vector nor
 
Vector nh
 
Vector ni
 
DenseMatrix jmat
 
DenseMatrix dshape1
 
DenseMatrix dshape2
 
DenseMatrix mq
 
DenseMatrix adjJ
 
- Protected Attributes inherited from mfem::NonlinearFormIntegrator
const IntegrationRuleIntRule
 

Additional Inherited Members

- 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

Integrator for the DG form:

where Q is a scalar or matrix diffusion coefficient and u, v are the trial and test spaces, respectively. The parameters sigma and kappa determine the DG method to be used (when this integrator is added to the "broken" DiffusionIntegrator): sigma = -1, kappa >= kappa0: symm. interior penalty (IP or SIPG) method, sigma = +1, kappa > 0: non-symmetric interior penalty (NIPG) method, sigma = +1, kappa = 0: the method of Baumann and Oden.

Definition at line 2730 of file bilininteg.hpp.

Constructor & Destructor Documentation

mfem::DGDiffusionIntegrator::DGDiffusionIntegrator ( const double  s,
const double  k 
)
inline

Definition at line 2742 of file bilininteg.hpp.

mfem::DGDiffusionIntegrator::DGDiffusionIntegrator ( Coefficient q,
const double  s,
const double  k 
)
inline

Definition at line 2744 of file bilininteg.hpp.

mfem::DGDiffusionIntegrator::DGDiffusionIntegrator ( MatrixCoefficient q,
const double  s,
const double  k 
)
inline

Definition at line 2746 of file bilininteg.hpp.

Member Function Documentation

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

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 2738 of file bilininteg.cpp.

Member Data Documentation

DenseMatrix mfem::DGDiffusionIntegrator::adjJ
protected

Definition at line 2739 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::dshape1
protected

Definition at line 2739 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::dshape1dn
protected

Definition at line 2738 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::dshape2
protected

Definition at line 2739 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::dshape2dn
protected

Definition at line 2738 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::jmat
protected

Definition at line 2739 of file bilininteg.hpp.

double mfem::DGDiffusionIntegrator::kappa
protected

Definition at line 2735 of file bilininteg.hpp.

MatrixCoefficient* mfem::DGDiffusionIntegrator::MQ
protected

Definition at line 2734 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::mq
protected

Definition at line 2739 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::nh
protected

Definition at line 2738 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::ni
protected

Definition at line 2738 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::nor
protected

Definition at line 2738 of file bilininteg.hpp.

Coefficient* mfem::DGDiffusionIntegrator::Q
protected

Definition at line 2733 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::shape1
protected

Definition at line 2738 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::shape2
protected

Definition at line 2738 of file bilininteg.hpp.

double mfem::DGDiffusionIntegrator::sigma
protected

Definition at line 2735 of file bilininteg.hpp.


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