ISTL_Factory

Classes
class	Dune::NoAssembledOperator
	This exception is thrown if the requested solver or preconditioner needs an assembled matrix. More...

Functions
template<class Operator >
std::shared_ptr< InverseOperator< typename Operator::domain_type, typename Operator::range_type > >	Dune::getSolverFromFactory (std::shared_ptr< Operator > op, const ParameterTree &config, std::shared_ptr< Preconditioner< typename Operator::domain_type, typename Operator::range_type > > prec=nullptr)
	Instantiates an InverseOperator from an Operator and a configuration given as a ParameterTree. More...
template<class Operator >
std::shared_ptr< Preconditioner< typename Operator::domain_type, typename Operator::range_type > >	Dune::getPreconditionerFromFactory (std::shared_ptr< Operator > op, const ParameterTree &config)
	Construct a Preconditioner for a given Operator.

Detailed Description

Function Documentation

getSolverFromFactory()

template<class Operator >

std::shared_ptr< InverseOperator< typename Operator::domain_type, typename Operator::range_type > > Dune::getSolverFromFactory	(	std::shared_ptr< Operator >	op,
		const ParameterTree &	config,
		std::shared_ptr< Preconditioner< typename Operator::domain_type, typename Operator::range_type > >	prec = nullptr
	)

Instantiates an InverseOperator from an Operator and a configuration given as a ParameterTree.

Parameters

op	Operator
config	ParameterTree with configuration
prec	Preconditioner

Example ini File that can be passed in to construct a CGSolver with a SSOR preconditioner:

type = cgsolver
verbose = 1
maxit = 1000
reduction = 1e-5

[preconditioner]
type = ssor
iterations = 1
relaxation = 1

Template Parameters

Operator

type of the operator, necessary to deduce the matrix type etc.

References Dune::ParameterTree::get(), Dune::Singleton< T >::instance(), and Dune::ParameterTree::sub().