MFEM  v4.1.0
Finite element discretization library
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mfem::DGTraceIntegrator Class Reference

#include <bilininteg.hpp>

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

 DGTraceIntegrator (VectorCoefficient &_u, double a, double b)
 Construct integrator with rho = 1. More...
 
 DGTraceIntegrator (Coefficient &_rho, VectorCoefficient &_u, double a, double b)
 
virtual void AssembleFaceMatrix (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Trans, DenseMatrix &elmat)
 
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 &, Vector &) const
 Method for partially assembled action. More...
 
- 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 AssembleDiagonalPA (Vector &diag)
 Assemble diagonal and add it to Vector diag. More...
 
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. 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 void AssembleFaceVector (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Tr, const Vector &elfun, Vector &elvect)
 Perform the local action of the NonlinearFormIntegrator resulting from a face integral term. More...
 
virtual double GetElementEnergy (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun)
 Compute the local energy. More...
 
virtual ~NonlinearFormIntegrator ()
 

Static Public Member Functions

static const IntegrationRuleGetRule (Geometry::Type geom, int order, FaceElementTransformations &T)
 

Protected Attributes

Coefficientrho
 
VectorCoefficientu
 
double alpha
 
double beta
 
Vector pa_data
 
const DofToQuadmaps
 Not owned. More...
 
const FaceGeometricFactorsgeom
 Not owned. More...
 
int dim
 
int nf
 
int nq
 
int dofs1D
 
int quad1D
 
- 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: alpha < rho_u (u.n) {v},[w] > + beta < rho_u |u.n| [v],[w] >, where v and w are the trial and test variables, respectively, and rho/u are given scalar/vector coefficients. The vector coefficient, u, is assumed to be continuous across the faces and when given the scalar coefficient, rho, is assumed to be discontinuous. The integrator uses the upwind value of rho, rho_u, which is value from the side into which the vector coefficient, u, points.

Definition at line 2485 of file bilininteg.hpp.

Constructor & Destructor Documentation

mfem::DGTraceIntegrator::DGTraceIntegrator ( VectorCoefficient _u,
double  a,
double  b 
)
inline

Construct integrator with rho = 1.

Definition at line 2502 of file bilininteg.hpp.

mfem::DGTraceIntegrator::DGTraceIntegrator ( Coefficient _rho,
VectorCoefficient _u,
double  a,
double  b 
)
inline

Definition at line 2505 of file bilininteg.hpp.

Member Function Documentation

void mfem::DGTraceIntegrator::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 1080 of file bilininteg_dgtrace.cpp.

void mfem::DGTraceIntegrator::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 1087 of file bilininteg_dgtrace.cpp.

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

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 2501 of file bilininteg.cpp.

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

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 245 of file bilininteg_dgtrace.cpp.

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

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 240 of file bilininteg_dgtrace.cpp.

const IntegrationRule & mfem::DGTraceIntegrator::GetRule ( Geometry::Type  geom,
int  order,
FaceElementTransformations T 
)
static

Definition at line 2636 of file bilininteg.cpp.

Member Data Documentation

double mfem::DGTraceIntegrator::alpha
protected

Definition at line 2490 of file bilininteg.hpp.

double mfem::DGTraceIntegrator::beta
protected

Definition at line 2490 of file bilininteg.hpp.

int mfem::DGTraceIntegrator::dim
protected

Definition at line 2495 of file bilininteg.hpp.

int mfem::DGTraceIntegrator::dofs1D
protected

Definition at line 2495 of file bilininteg.hpp.

const FaceGeometricFactors* mfem::DGTraceIntegrator::geom
protected

Not owned.

Definition at line 2494 of file bilininteg.hpp.

const DofToQuad* mfem::DGTraceIntegrator::maps
protected

Not owned.

Definition at line 2493 of file bilininteg.hpp.

int mfem::DGTraceIntegrator::nf
protected

Definition at line 2495 of file bilininteg.hpp.

int mfem::DGTraceIntegrator::nq
protected

Definition at line 2495 of file bilininteg.hpp.

Vector mfem::DGTraceIntegrator::pa_data
protected

Definition at line 2492 of file bilininteg.hpp.

int mfem::DGTraceIntegrator::quad1D
protected

Definition at line 2495 of file bilininteg.hpp.

Coefficient* mfem::DGTraceIntegrator::rho
protected

Definition at line 2488 of file bilininteg.hpp.

VectorCoefficient* mfem::DGTraceIntegrator::u
protected

Definition at line 2489 of file bilininteg.hpp.


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