Dune::PDELab::ISTLBackend_SEQ_MatrixFree_Base< GO, PrecGO, Solver > Class Template Reference

Sequential matrix-free solver backend. More...

#include <dune/pdelab/backend/istl/matrixfree/backends.hh>

Inheritance diagram for Dune::PDELab::ISTLBackend_SEQ_MatrixFree_Base< GO, PrecGO, Solver >:

Public Member Functions
	ISTLBackend_SEQ_MatrixFree_Base (const GO &go, const PrecGO &precgo, unsigned maxiter=5000, int verbose=1)
void	apply (V &z, W &r, typename V::ElementType reduction)
void	setLinearizationPoint (const V &u)
template<class V >
Dune::template FieldTraits< typenameV::ElementType >::real_type	norm (const V &v) const
	compute global norm of a vector
const Dune::PDELab::LinearSolverResult< double > &	result () const
	Return access to result data.

Static Public Attributes
static constexpr bool	isMatrixFree {true}

Protected Attributes
Dune::PDELab::LinearSolverResult< double >	res

Detailed Description

template<class GO, class PrecGO, template< class > class Solver>
class Dune::PDELab::ISTLBackend_SEQ_MatrixFree_Base< GO, PrecGO, Solver >

Sequential matrix-free solver backend.

This can be used with a combination of {CGSolver, BiCGSTABSolver, MINRESSolver} as a solver and grid operator build from one of the following local operators:

• AssembledBlockJacobiPreconditionerLocalOperator for partial matrix-free Jacobi
• IterativeBlockJacobiPreconditionerLocalOperator for fully matrix-free Jacobi
• BlockSORPreconditionerLocalOperator for matrix-free SOR

Note: If you use BlockSORPreconditionerLocalOperator you need to use FastDGGridOperator!

Template Parameters

GO	Grid operator implementing the matrix-free operator application
PrecGO	Grid operator implementing matrix-free preconditioning

Constructor & Destructor Documentation

ISTLBackend_SEQ_MatrixFree_Base()

template<class GO , class PrecGO , template< class > class Solver>

Dune::PDELab::ISTLBackend_SEQ_MatrixFree_Base< GO, PrecGO, Solver >::ISTLBackend_SEQ_MatrixFree_Base ( const GO &  go, const PrecGO &  precgo, unsigned  maxiter = 5000, int  verbose = 1  )

inline

Member Function Documentation

apply()

template<class GO , class PrecGO , template< class > class Solver>

void Dune::PDELab::ISTLBackend_SEQ_MatrixFree_Base< GO, PrecGO, Solver >::apply ( V &  z, W &  r, typename V::ElementType  reduction  )

inline

norm()

template<class V >

Dune::template FieldTraits< typenameV::ElementType >::real_type Dune::PDELab::SequentialNorm::norm ( const V &  v ) const

inlineinherited

compute global norm of a vector

\param[in] v the given vector

result()

const Dune::PDELab::LinearSolverResult< double > & Dune::PDELab::LinearResultStorage::result ( ) const

inlineinherited

Return access to result data.

setLinearizationPoint()

template<class GO , class PrecGO , template< class > class Solver>

void Dune::PDELab::ISTLBackend_SEQ_MatrixFree_Base< GO, PrecGO, Solver >::setLinearizationPoint ( const V &  u )

inline

Set position of jacobian. Must be called before apply().

Member Data Documentation

isMatrixFree

template<class GO , class PrecGO , template< class > class Solver>

constexpr bool Dune::PDELab::ISTLBackend_SEQ_MatrixFree_Base< GO, PrecGO, Solver >::isMatrixFree {true}

staticconstexpr

res

Dune::PDELab::LinearSolverResult<double> Dune::PDELab::LinearResultStorage::res

protectedinherited

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

• backends.hh