dune-istl
2.4.1
|
gradient method More...
#include <dune/istl/solvers.hh>
Public Types | |
typedef X | domain_type |
The domain type of the operator that we do the inverse for. More... | |
typedef X | range_type |
The range type of the operator that we do the inverse for. More... | |
typedef X::field_type | field_type |
The field type of the operator that we do the inverse for. More... | |
typedef FieldTraits < field_type >::real_type | real_type |
The real type of the field type (is the same if using real numbers, but differs for std::complex) More... | |
Public Member Functions | |
template<class L , class P > | |
GradientSolver (L &op, P &prec, real_type reduction, int maxit, int verbose) | |
Set up solver. More... | |
template<class L , class S , class P > | |
GradientSolver (L &op, S &sp, P &prec, real_type reduction, int maxit, int verbose) | |
Set up solver. More... | |
virtual void | apply (X &x, X &b, InverseOperatorResult &res) |
Apply inverse operator. More... | |
virtual void | apply (X &x, X &b, double reduction, InverseOperatorResult &res) |
Apply inverse operator with given reduction factor. More... | |
Protected Types | |
enum | |
Protected Member Functions | |
void | printHeader (std::ostream &s) const |
helper function for printing header of solver output More... | |
void | printOutput (std::ostream &s, const CountType &iter, const DataType &norm, const DataType &norm_old) const |
helper function for printing solver output More... | |
void | printOutput (std::ostream &s, const CountType &iter, const DataType &norm) const |
helper function for printing solver output More... | |
gradient method
typedef X Dune::GradientSolver< X >::domain_type |
The domain type of the operator that we do the inverse for.
typedef X::field_type Dune::GradientSolver< X >::field_type |
The field type of the operator that we do the inverse for.
typedef X Dune::GradientSolver< X >::range_type |
The range type of the operator that we do the inverse for.
typedef FieldTraits<field_type>::real_type Dune::GradientSolver< X >::real_type |
The real type of the field type (is the same if using real numbers, but differs for std::complex)
|
protectedinherited |
|
inline |
Set up solver.
References Dune::SolverCategory::sequential.
|
inline |
Set up solver.
|
inlinevirtual |
Apply inverse operator.
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 >::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.
|
inlinevirtual |
Apply inverse operator with given reduction factor.
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 >.
|
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(), Dune::MINRESSolver< X >::apply(), and Dune::GeneralizedPCGSolver< X >::apply().
|
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(), Dune::MINRESSolver< X >::apply(), and Dune::GeneralizedPCGSolver< X >::apply().
|
inlineprotectedinherited |
helper function for printing solver output
References Dune::InverseOperator< X, Y >::iterationSpacing, and Dune::InverseOperator< X, Y >::normSpacing.