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MFEM v4.8.0
Finite element discretization library
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\(\alpha (Q \cdot \nabla u, v)\) More...
#include <bilininteg.hpp>
Public Member Functions | |
ConvectionIntegrator (VectorCoefficient &q, real_t a=1.0) | |
void | AssembleElementMatrix (const FiniteElement &, ElementTransformation &, DenseMatrix &) override |
Given a particular Finite Element computes the element matrix elmat. | |
void | AssembleMF (const FiniteElementSpace &fes) override |
Method defining matrix-free assembly. | |
void | AssemblePA (const FiniteElementSpace &) override |
Method defining partial assembly. | |
void | AssembleEA (const FiniteElementSpace &fes, Vector &emat, const bool add) override |
Method defining element assembly. | |
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 &x, Vector &y) const override |
Method for partially assembled transposed action. | |
bool | SupportsCeed () const override |
Indicates whether this integrator can use a Ceed backend. | |
void | AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes) override |
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virtual void | AssembleNURBSPA (const FiniteElementSpace &fes) |
Method defining partial assembly on NURBS patches. | |
virtual void | AssemblePABoundary (const FiniteElementSpace &fes) |
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 | AssembleEABoundary (const FiniteElementSpace &fes, Vector &ea_data_bdr, const bool add=true) |
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 | AssembleElementMatrix2 (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans, DenseMatrix &elmat) |
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 () |
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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 () |
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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 &el, const ElementTransformation &Trans) |
static const IntegrationRule & | GetRule (const FiniteElement &trial_fe, const FiniteElement &test_fe, const ElementTransformation &Trans) |
Protected Member Functions | |
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. | |
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BilinearFormIntegrator (const IntegrationRule *ir=NULL) | |
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NonlinearFormIntegrator (const IntegrationRule *ir=NULL) | |
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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 | |
VectorCoefficient * | Q |
real_t | alpha |
Vector | pa_data |
const DofToQuad * | maps |
Not owned. | |
const GeometricFactors * | geom |
Not owned. | |
int | dim |
int | ne |
int | nq |
int | dofs1D |
int | quad1D |
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Mode | integrationMode = Mode::ELEMENTWISE |
ceed::Operator * | ceedOp |
MemoryType | pa_mt = MemoryType::DEFAULT |
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const IntegrationRule * | IntRule |
NURBSMeshRules * | patchRules = nullptr |
Additional Inherited Members | |
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enum | Mode { ELEMENTWISE = 0 , PATCHWISE = 1 , PATCHWISE_REDUCED = 2 } |
\(\alpha (Q \cdot \nabla u, v)\)
Definition at line 2463 of file bilininteg.hpp.
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Definition at line 2481 of file bilininteg.hpp.
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 59 of file bilininteg_convection_mf.cpp.
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 1534 of file bilininteg_convection_pa.cpp.
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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 1548 of file bilininteg_convection_pa.cpp.
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overridevirtual |
Assemble diagonal and add it to Vector diag.
Reimplemented from mfem::BilinearFormIntegrator.
Definition at line 46 of file bilininteg_convection_mf.cpp.
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overridevirtual |
Assemble diagonal and add it to Vector diag.
Reimplemented from mfem::BilinearFormIntegrator.
Definition at line 177 of file bilininteg_convection_pa.cpp.
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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 228 of file bilininteg_convection_ea.cpp.
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overridevirtual |
Given a particular Finite Element computes the element matrix elmat.
Reimplemented from mfem::BilinearFormIntegrator.
Definition at line 1480 of file bilininteg.cpp.
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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_convection_mf.cpp.
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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 135 of file bilininteg_convection_pa.cpp.
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overridevirtual |
Used with BilinearFormIntegrators that have different spaces.
Reimplemented from mfem::BilinearFormIntegrator.
Definition at line 52 of file bilininteg.cpp.
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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 2516 of file bilininteg.hpp.
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Definition at line 1590 of file bilininteg.cpp.
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Definition at line 1581 of file bilininteg.cpp.
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Indicates whether this integrator can use a Ceed backend.
Reimplemented from mfem::NonlinearFormIntegrator.
Definition at line 2513 of file bilininteg.hpp.
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Definition at line 2467 of file bilininteg.hpp.
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Definition at line 2472 of file bilininteg.hpp.
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Definition at line 2472 of file bilininteg.hpp.
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Not owned.
Definition at line 2471 of file bilininteg.hpp.
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Not owned.
Definition at line 2470 of file bilininteg.hpp.
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Definition at line 2472 of file bilininteg.hpp.
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Definition at line 2472 of file bilininteg.hpp.
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Definition at line 2469 of file bilininteg.hpp.
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Definition at line 2466 of file bilininteg.hpp.
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Definition at line 2472 of file bilininteg.hpp.