dune-istl
2.2.0
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Preconditioned loop solver. More...
#include <dune/istl/solvers.hh>
Public Types | |
typedef X | domain_type |
The domain type of the operator that we do the inverse for. | |
typedef X | range_type |
The range type of the operator that we do the inverse for. | |
typedef X::field_type | field_type |
The field type of the operator that we do the inverse for. |
Public Member Functions | |
template<class L , class P > | |
LoopSolver (L &op, P &prec, double reduction, int maxit, int verbose) | |
Set up Loop solver. | |
template<class L , class S , class P > | |
LoopSolver (L &op, S &sp, P &prec, double reduction, int maxit, int verbose) | |
Set up loop solver. | |
virtual void | apply (X &x, X &b, InverseOperatorResult &res) |
Apply inverse operator,. | |
virtual void | apply (X &x, X &b, double reduction, InverseOperatorResult &res) |
apply inverse operator, with given convergence criteria. |
Protected Types | |
enum |
Protected Member Functions | |
void | printHeader (std::ostream &s) const |
helper function for printing header of solver output | |
void | printOutput (std::ostream &s, const double iter, const DataType &norm, const DataType &norm_old) const |
helper function for printing solver output | |
void | printOutput (std::ostream &s, const double iter, const DataType &norm) const |
helper function for printing solver output |
Preconditioned loop solver.
Implements a preconditioned loop. Using this class every Preconditioner can be turned into a solver. The solver will apply one preconditioner step in each iteration loop.
typedef X Dune::LoopSolver< X >::domain_type |
The domain type of the operator that we do the inverse for.
Reimplemented from Dune::InverseOperator< X, X >.
typedef X::field_type Dune::LoopSolver< X >::field_type |
The field type of the operator that we do the inverse for.
Reimplemented from Dune::InverseOperator< X, X >.
typedef X Dune::LoopSolver< X >::range_type |
The range type of the operator that we do the inverse for.
Reimplemented from Dune::InverseOperator< X, X >.
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protectedinherited |
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inline |
Set up Loop solver.
op | The operator we solve. |
prec | The preconditioner to apply in each iteration of the loop. Has to inherit from Preconditioner. |
reduction | The relative defect reduction to achieve when applying the operator. |
maxit | The maximum number of iteration steps allowed when applying the operator. |
verbose | The verbosity level. |
Verbose levels are:
References Dune::SolverCategory::sequential.
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inline |
Set up loop solver.
op | The operator we solve. |
sp | The scalar product to use, e. g. SeqScalarproduct. |
prec | The preconditioner to apply in each iteration of the loop. Has to inherit from Preconditioner. |
reduction | The relative defect reduction to achieve when applying the operator. |
maxit | The maximum number of iteration steps allowed when applying the operator. |
verbose | The verbosity level. |
Verbose levels are:
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inlinevirtual |
Apply inverse operator,.
x | The left hand side to store the result in. |
b | The right hand side |
res | Object to store the statistics about applying the operator. |
Implements Dune::InverseOperator< X, X >.
References Dune::Preconditioner< X, Y >::apply(), Dune::LinearOperator< X, Y >::applyscaleadd(), Dune::InverseOperatorResult::clear(), Dune::InverseOperatorResult::conv_rate, Dune::InverseOperatorResult::converged, Dune::InverseOperatorResult::elapsed, Dune::InverseOperatorResult::iterations, Dune::Preconditioner< X, Y >::post(), Dune::Preconditioner< X, Y >::pre(), Dune::InverseOperator< X, X >::printHeader(), Dune::InverseOperator< X, X >::printOutput(), and Dune::InverseOperatorResult::reduction.
Referenced by test_Interface().
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inlinevirtual |
apply inverse operator, with given convergence criteria.
x | The left hand side to store the result in. |
b | The right hand side |
reduction | The minimum defect reduction to achieve. |
res | Object to store the statistics about applying the operator. |
Implements Dune::InverseOperator< X, X >.
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inlineprotectedinherited |
helper function for printing header of solver output
References Dune::InverseOperator< X, Y >::iterationSpacing, and Dune::InverseOperator< X, Y >::normSpacing.
Referenced by Dune::LoopSolver< X >::apply(), Dune::GradientSolver< X >::apply(), Dune::CGSolver< X >::apply(), Dune::BiCGSTABSolver< X >::apply(), and Dune::MINRESSolver< X >::apply().
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inlineprotectedinherited |
helper function for printing solver output
References Dune::InverseOperator< X, Y >::iterationSpacing, and Dune::InverseOperator< X, Y >::normSpacing.
Referenced by Dune::LoopSolver< X >::apply(), Dune::GradientSolver< X >::apply(), Dune::CGSolver< X >::apply(), Dune::BiCGSTABSolver< X >::apply(), and Dune::MINRESSolver< X >::apply().
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inlineprotectedinherited |
helper function for printing solver output
References Dune::InverseOperator< X, Y >::iterationSpacing, and Dune::InverseOperator< X, Y >::normSpacing.