MFEM  v4.0
Finite element discretization library
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Pages
Public Member Functions | Static Public Member Functions | Protected Attributes | List of all members
mfem::MassIntegrator Class Reference

#include <bilininteg.hpp>

Inheritance diagram for mfem::MassIntegrator:
[legend]
Collaboration diagram for mfem::MassIntegrator:
[legend]

Public Member Functions

 MassIntegrator (const IntegrationRule *ir=NULL)
 
 MassIntegrator (Coefficient &q, const IntegrationRule *ir=NULL)
 Construct a mass integrator with coefficient q. More...
 
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 AssemblePA (const FiniteElementSpace &)
 Method defining partial assembly. More...
 
virtual void AddMultPA (const Vector &, Vector &) const
 Method for partially assembled action. More...
 
- Public Member Functions inherited from mfem::BilinearFormIntegrator
virtual void AddMultTransposePA (const Vector &x, Vector &y) const
 Method for partially assembled transposed action. More...
 
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 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, int with_coef=1)
 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 (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans)
 

Protected Attributes

Vector shape
 
Vector te_shape
 
CoefficientQ
 
Vector pa_data
 
const DofToQuadmaps
 Not owned. More...
 
const GeometricFactorsgeom
 Not owned. More...
 
int dim
 
int ne
 
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

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

Definition at line 1729 of file bilininteg.hpp.

Constructor & Destructor Documentation

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

Definition at line 1743 of file bilininteg.hpp.

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

Construct a mass integrator with coefficient q.

Definition at line 1747 of file bilininteg.hpp.

Member Function Documentation

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.

Definition at line 817 of file bilininteg_mass.cpp.

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 696 of file bilininteg.cpp.

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 728 of file bilininteg.cpp.

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.

Definition at line 24 of file bilininteg_mass.cpp.

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

Definition at line 766 of file bilininteg.cpp.

Member Data Documentation

int mfem::MassIntegrator::dim
protected

Definition at line 1740 of file bilininteg.hpp.

int mfem::MassIntegrator::dofs1D
protected

Definition at line 1740 of file bilininteg.hpp.

const GeometricFactors* mfem::MassIntegrator::geom
protected

Not owned.

Definition at line 1739 of file bilininteg.hpp.

const DofToQuad* mfem::MassIntegrator::maps
protected

Not owned.

Definition at line 1738 of file bilininteg.hpp.

int mfem::MassIntegrator::ne
protected

Definition at line 1740 of file bilininteg.hpp.

int mfem::MassIntegrator::nq
protected

Definition at line 1740 of file bilininteg.hpp.

Vector mfem::MassIntegrator::pa_data
protected

Definition at line 1737 of file bilininteg.hpp.

Coefficient* mfem::MassIntegrator::Q
protected

Definition at line 1735 of file bilininteg.hpp.

int mfem::MassIntegrator::quad1D
protected

Definition at line 1740 of file bilininteg.hpp.

Vector mfem::MassIntegrator::shape
protected

Definition at line 1733 of file bilininteg.hpp.

Vector mfem::MassIntegrator::te_shape
protected

Definition at line 1733 of file bilininteg.hpp.


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