Dune::PDELab::ISTLBackend_SEQ_CG_ILUn Class Reference

Sequential congute gradient solver with ILU0 preconditioner. More...

#include <dune/pdelab/backend/istl/seqistlsolverbackend.hh>

Inheritance diagram for Dune::PDELab::ISTLBackend_SEQ_CG_ILUn:

Public Member Functions
	ISTLBackend_SEQ_CG_ILUn (int n_, double w_=1.0, unsigned maxiter_=5000, int verbose_=1)
	make a linear solver object More...
void	apply (M &A, V &z, W &r, typename Dune::template FieldTraits< typename W::ElementType >::real_type reduction)
	solve the given linear system More...
template<class V >
Dune::template FieldTraits< typename V::ElementType >::real_type	norm (const V &v) const
	compute global norm of a vector More...
const Dune::PDELab::LinearSolverResult< double > &	result () const
	Return access to result data. More...

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

Detailed Description

Sequential congute gradient solver with ILU0 preconditioner.

Constructor & Destructor Documentation

Dune::PDELab::ISTLBackend_SEQ_CG_ILUn::ISTLBackend_SEQ_CG_ILUn ( int  n_, double  w_ = 1.0, unsigned  maxiter_ = 5000, int  verbose_ = 1  )

inlineexplicit

make a linear solver object

Parameters

[in]	n_	The number of levels to be used.
[in]	w_	The relaxation factor.
[in]	maxiter_	maximum number of iterations to do
[in]	verbose_	print messages if true

Member Function Documentation

void Dune::PDELab::ISTLBackend_SEQ_ILUn< Dune::CGSolver >::apply ( M &  A, V &  z, W &  r, typename Dune::template FieldTraits< typename W::ElementType >::real_type  reduction  )

inlineinherited

solve the given linear system

Parameters

[in]	A	the given matrix
[out]	z	the solution vector to be computed
[in]	r	right hand side
[in]	reduction	to be achieved

References Dune::PDELab::Backend::native().

template<class V >

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

inlineinherited

compute global norm of a vector

Parameters

[in]

v

the given vector

References Dune::PDELab::Backend::native().

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

inlineinherited

Return access to result data.

Member Data Documentation

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

protectedinherited

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

• istl/seqistlsolverbackend.hh