dune-pdelab  2.5-dev
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Dune::PDELab::ISTLBackend_NOVLP_BASE_PREC< GO, Preconditioner, Solver > Class Template Reference

Utility base class for preconditioned novlp backends. More...

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

Inheritance diagram for Dune::PDELab::ISTLBackend_NOVLP_BASE_PREC< GO, Preconditioner, Solver >:
Inheritance graph

Public Member Functions

 ISTLBackend_NOVLP_BASE_PREC (const GO &grid_operator, unsigned maxiter_=5000, unsigned steps_=5, int verbose_=1)
 Constructor. More...
 
template<class Vector >
Vector::ElementType norm (const Vector &v) const
 Compute global norm of a vector. More...
 
template<class M , class V , class W >
void apply (M &A, V &z, W &r, typename V::ElementType reduction)
 Solve the given linear system. More...
 
const Dune::PDELab::LinearSolverResult< double > & result () const
 Return access to result data. More...
 

Detailed Description

template<class GO, template< class, class, class, int > class Preconditioner, template< class > class Solver>
class Dune::PDELab::ISTLBackend_NOVLP_BASE_PREC< GO, Preconditioner, Solver >

Utility base class for preconditioned novlp backends.

Template Parameters
GOThe type of the grid operator for the spatial discretization. This class will be used to adjust the discretization matrix. and extract the trial grid function space.
PreconditionerThe type of preconditioner to use.
SolverThe type of solver to use.

Constructor & Destructor Documentation

◆ ISTLBackend_NOVLP_BASE_PREC()

template<class GO, template< class, class, class, int > class Preconditioner, template< class > class Solver>
Dune::PDELab::ISTLBackend_NOVLP_BASE_PREC< GO, Preconditioner, Solver >::ISTLBackend_NOVLP_BASE_PREC ( const GO &  grid_operator,
unsigned  maxiter_ = 5000,
unsigned  steps_ = 5,
int  verbose_ = 1 
)
inlineexplicit

Constructor.

Parameters
[in]gfs_a grid function space
[in]maxiter_maximum number of iterations to do
[in]steps_number of preconditioner steps to apply as inner iteration
[in]verbose_print messages if true

Member Function Documentation

◆ apply()

template<class GO, template< class, class, class, int > class Preconditioner, template< class > class Solver>
template<class M , class V , class W >
void Dune::PDELab::ISTLBackend_NOVLP_BASE_PREC< GO, Preconditioner, Solver >::apply ( M &  A,
V &  z,
W &  r,
typename V::ElementType  reduction 
)
inline

Solve the given linear system.

Parameters
[in]Athe given matrix
[out]zthe solution vector to be computed
[in]rright hand side
[in]reductionto be achieved

◆ norm()

template<class GO, template< class, class, class, int > class Preconditioner, template< class > class Solver>
template<class Vector >
Vector::ElementType Dune::PDELab::ISTLBackend_NOVLP_BASE_PREC< GO, Preconditioner, Solver >::norm ( const Vector &  v) const
inline

Compute global norm of a vector.

Parameters
[in]vthe given vector

◆ result()

template<class GO, template< class, class, class, int > class Preconditioner, template< class > class Solver>
const Dune::PDELab::LinearSolverResult<double>& Dune::PDELab::ISTLBackend_NOVLP_BASE_PREC< GO, Preconditioner, Solver >::result ( ) const
inline

Return access to result data.


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