mfem::HyperbolicFormIntegrator Class Reference

Abstract hyperbolic form integrator, (F(u, x), ∇v) and (F̂(u±, x, n)) More...

#include <hyperbolic.hpp>

Inheritance diagram for mfem::HyperbolicFormIntegrator:

Collaboration diagram for mfem::HyperbolicFormIntegrator:

Public Member Functions
	HyperbolicFormIntegrator (const RiemannSolver &rsolver, const int IntOrderOffset=0)
	Construct a new Hyperbolic Form Integrator object.
void	ResetMaxCharSpeed ()
	Reset the Max Char Speed 0.
real_t	GetMaxCharSpeed ()
const FluxFunction &	GetFluxFunction ()
void	AssembleElementVector (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, Vector &elvect) override
	implement (F(u), grad v) with abstract F computed by ComputeFlux
void	AssembleFaceVector (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Tr, const Vector &elfun, Vector &elvect) override
	implement <-hat(F)(u,x) n, [[v]]> with abstract hat(F) computed by ComputeFluxDotN and numerical flux object
Public Member Functions inherited from mfem::NonlinearFormIntegrator
virtual void	SetIntRule (const IntegrationRule *ir)
	Prescribe a fixed IntegrationRule to use (when ir != NULL) or let the integrator choose (when ir == NULL).
void	SetIntegrationMode (Mode m)
void	SetNURBSPatchIntRule (NURBSMeshRules *pr)
	For patchwise integration, SetNURBSPatchIntRule must be called.
bool	HasNURBSPatchIntRule () const
bool	Patchwise () const
void	SetIntegrationRule (const IntegrationRule &ir)
	Prescribe a fixed IntegrationRule to use.
void	SetPAMemoryType (MemoryType mt)
const IntegrationRule *	GetIntegrationRule () const
	Get the integration rule of the integrator (possibly NULL).
virtual void	AssembleElementGrad (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, DenseMatrix &elmat)
	Assemble the local gradient matrix.
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.
virtual real_t	GetElementEnergy (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun)
	Compute the local energy.
virtual void	AssemblePA (const FiniteElementSpace &fes)
	Method defining partial assembly.
virtual void	AssemblePA (const FiniteElementSpace &trial_fes, const FiniteElementSpace &test_fes)
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	AddMultPA (const Vector &x, Vector &y) const
	Method for partially assembled action.
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.
virtual bool	SupportsCeed () const
	Indicates whether this integrator can use a Ceed backend.
virtual void	AssembleMF (const FiniteElementSpace &fes)
	Method defining fully unassembled operator.
virtual void	AddMultMF (const Vector &x, Vector &y) const
ceed::Operator &	GetCeedOp ()
virtual	~NonlinearFormIntegrator ()

Public Attributes
const int	num_equations

Additional Inherited Members
Public Types inherited from mfem::NonlinearFormIntegrator
enum	Mode { ELEMENTWISE = 0 , PATCHWISE = 1 , PATCHWISE_REDUCED = 2 }
Protected Member Functions inherited from mfem::NonlinearFormIntegrator
	NonlinearFormIntegrator (const IntegrationRule *ir=NULL)
Protected Attributes inherited from mfem::NonlinearFormIntegrator
const IntegrationRule *	IntRule
Mode	integrationMode = Mode::ELEMENTWISE
NURBSMeshRules *	patchRules = nullptr
ceed::Operator *	ceedOp
MemoryType	pa_mt = MemoryType::DEFAULT

Detailed Description

Abstract hyperbolic form integrator, (F(u, x), ∇v) and (F̂(u±, x, n))

Definition at line 161 of file hyperbolic.hpp.

Constructor & Destructor Documentation

HyperbolicFormIntegrator()

mfem::HyperbolicFormIntegrator::HyperbolicFormIntegrator	(	const RiemannSolver &	rsolver,
		const int	IntOrderOffset = 0 )

Construct a new Hyperbolic Form Integrator object.

Parameters

[in]	rsolver	numerical flux
[in]	IntOrderOffset	integration order offset

Definition at line 171 of file hyperbolic.cpp.

Member Function Documentation

AssembleElementVector()

void mfem::HyperbolicFormIntegrator::AssembleElementVector ( const FiniteElement & el, ElementTransformation & Tr, const Vector & elfun, Vector & elvect )

overridevirtual

implement (F(u), grad v) with abstract F computed by ComputeFlux

Parameters

[in]	el	local finite element
[in]	Tr	element transformation
[in]	elfun	local coefficient of basis
[out]	elvect	evaluated dual vector

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 21 of file hyperbolic.cpp.

AssembleFaceVector()

void mfem::HyperbolicFormIntegrator::AssembleFaceVector ( const FiniteElement & el1, const FiniteElement & el2, FaceElementTransformations & Tr, const Vector & elfun, Vector & elvect )

overridevirtual

implement <-hat(F)(u,x) n, [[v]]> with abstract hat(F) computed by ComputeFluxDotN and numerical flux object

Parameters

[in]	el1	finite element of the first element
[in]	el2	finite element of the second element
[in]	Tr	face element transformations
[in]	elfun	local coefficient of basis from both elements
[out]	elvect	evaluated dual vector <-hat(F)(u,x) n, [[v]]>

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 84 of file hyperbolic.cpp.

GetFluxFunction()

const FluxFunction & mfem::HyperbolicFormIntegrator::GetFluxFunction ( )

inline

Definition at line 210 of file hyperbolic.hpp.

GetMaxCharSpeed()

real_t mfem::HyperbolicFormIntegrator::GetMaxCharSpeed ( )

inline

Definition at line 205 of file hyperbolic.hpp.

ResetMaxCharSpeed()

void mfem::HyperbolicFormIntegrator::ResetMaxCharSpeed ( )

inline

Reset the Max Char Speed 0.

Definition at line 200 of file hyperbolic.hpp.

Member Data Documentation

num_equations

const int mfem::HyperbolicFormIntegrator::num_equations

Definition at line 185 of file hyperbolic.hpp.

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

• fem/hyperbolic.hpp
• fem/hyperbolic.cpp