MFEM v4.7.0
Finite element discretization library
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mfem::pLaplaceAD< CQVectAutoDiff > Class Template Reference

#include <example.hpp>

Inheritance diagram for mfem::pLaplaceAD< CQVectAutoDiff >:
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Collaboration diagram for mfem::pLaplaceAD< CQVectAutoDiff >:
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Public Member Functions

 pLaplaceAD ()
 
 pLaplaceAD (Coefficient &pp_)
 
 pLaplaceAD (Coefficient &pp_, Coefficient &q, Coefficient &ld_)
 
virtual ~pLaplaceAD ()
 
virtual real_t GetElementEnergy (const FiniteElement &el, ElementTransformation &trans, const Vector &elfun)
 Compute the local energy.
 
virtual void AssembleElementVector (const FiniteElement &el, ElementTransformation &trans, const Vector &elfun, Vector &elvect)
 Perform the local action of the NonlinearFormIntegrator.
 
virtual void AssembleElementGrad (const FiniteElement &el, ElementTransformation &trans, const Vector &elfun, DenseMatrix &elmat)
 Assemble the local gradient matrix.
 
- 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 IntegrationRuleGetIntegrationRule () const
 Get the integration rule of the integrator (possibly NULL).
 
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.
 
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 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::OperatorGetCeedOp ()
 
virtual ~NonlinearFormIntegrator ()
 

Protected Attributes

Coefficientpp
 
Coefficientcoeff
 
Coefficientload
 
CQVectAutoDiff rdf
 
- Protected Attributes inherited from mfem::NonlinearFormIntegrator
const IntegrationRuleIntRule
 
Mode integrationMode = Mode::ELEMENTWISE
 
NURBSMeshRulespatchRules = nullptr
 
ceed::OperatorceedOp
 
MemoryType pa_mt = MemoryType::DEFAULT
 

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)
 

Detailed Description

template<class CQVectAutoDiff>
class mfem::pLaplaceAD< CQVectAutoDiff >

Implements integrator for a p-Laplacian problem. The integrator is based on a class QFunction utilized for evaluating the energy, the first derivative (residual) and the Hessian of the energy (the Jacobian of the residual). The template parameter CQVectAutoDiff represents the automatically differentiated energy or residual implemented by the user. CQVectAutoDiff::VectorFunc(Vector parameters, Vector state,Vector residual) evaluates the residual at an integration point. CQVectAutoDiff::Jacobian(Vector parameters, Vector state, Matrix hessian) evaluates the Hessian of the energy(the Jacobian of the residual).

Definition at line 104 of file example.hpp.

Constructor & Destructor Documentation

◆ pLaplaceAD() [1/3]

template<class CQVectAutoDiff >
mfem::pLaplaceAD< CQVectAutoDiff >::pLaplaceAD ( )
inline

Definition at line 114 of file example.hpp.

◆ pLaplaceAD() [2/3]

template<class CQVectAutoDiff >
mfem::pLaplaceAD< CQVectAutoDiff >::pLaplaceAD ( Coefficient & pp_)
inline

Definition at line 126 of file example.hpp.

◆ pLaplaceAD() [3/3]

template<class CQVectAutoDiff >
mfem::pLaplaceAD< CQVectAutoDiff >::pLaplaceAD ( Coefficient & pp_,
Coefficient & q,
Coefficient & ld_ )
inline

Definition at line 135 of file example.hpp.

◆ ~pLaplaceAD()

template<class CQVectAutoDiff >
virtual mfem::pLaplaceAD< CQVectAutoDiff >::~pLaplaceAD ( )
inlinevirtual

Definition at line 144 of file example.hpp.

Member Function Documentation

◆ AssembleElementGrad()

template<class CQVectAutoDiff >
virtual void mfem::pLaplaceAD< CQVectAutoDiff >::AssembleElementGrad ( const FiniteElement & el,
ElementTransformation & Tr,
const Vector & elfun,
DenseMatrix & elmat )
inlinevirtual

Assemble the local gradient matrix.

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 290 of file example.hpp.

◆ AssembleElementVector()

template<class CQVectAutoDiff >
virtual void mfem::pLaplaceAD< CQVectAutoDiff >::AssembleElementVector ( const FiniteElement & el,
ElementTransformation & Tr,
const Vector & elfun,
Vector & elvect )
inlinevirtual

Perform the local action of the NonlinearFormIntegrator.

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 220 of file example.hpp.

◆ GetElementEnergy()

template<class CQVectAutoDiff >
virtual real_t mfem::pLaplaceAD< CQVectAutoDiff >::GetElementEnergy ( const FiniteElement & el,
ElementTransformation & Tr,
const Vector & elfun )
inlinevirtual

Compute the local energy.

Reimplemented from mfem::NonlinearFormIntegrator.

Definition at line 146 of file example.hpp.

Member Data Documentation

◆ coeff

template<class CQVectAutoDiff >
Coefficient* mfem::pLaplaceAD< CQVectAutoDiff >::coeff
protected

Definition at line 108 of file example.hpp.

◆ load

template<class CQVectAutoDiff >
Coefficient* mfem::pLaplaceAD< CQVectAutoDiff >::load
protected

Definition at line 109 of file example.hpp.

◆ pp

template<class CQVectAutoDiff >
Coefficient* mfem::pLaplaceAD< CQVectAutoDiff >::pp
protected

Definition at line 107 of file example.hpp.

◆ rdf

template<class CQVectAutoDiff >
CQVectAutoDiff mfem::pLaplaceAD< CQVectAutoDiff >::rdf
protected

Definition at line 111 of file example.hpp.


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