dune-istl
2.9.0
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Complete flexible conjugate gradient method. More...
#include <dune/istl/solvers.hh>
Public Types | |
typedef X | domain_type |
Type of the domain of the operator to be inverted. More... | |
typedef X | range_type |
Type of the range of the operator to be inverted. More... | |
typedef X::field_type | field_type |
The field type of the operator. 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... | |
typedef Simd::Scalar< real_type > | scalar_real_type |
scalar type underlying the field_type More... | |
Public Member Functions | |
virtual void | apply (X &x, X &b, InverseOperatorResult &res) override |
Apply inverse operator. More... | |
virtual void | apply (X &x, X &b, double reduction, InverseOperatorResult &res) |
Apply inverse operator with given reduction factor. More... | |
virtual SolverCategory::Category | category () const |
Category of the solver (see SolverCategory::Category) More... | |
std::string | name () const |
Protected Types | |
using | Iteration = typename IterativeSolver< X, X >::template Iteration< unsigned int > |
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... | |
Protected Attributes | |
int | _mmax |
std::shared_ptr< const LinearOperator< X, X > > | _op |
std::shared_ptr< Preconditioner< X, X > > | _prec |
std::shared_ptr< const ScalarProduct< X > > | _sp |
scalar_real_type | _reduction |
int | _maxit |
int | _verbose |
SolverCategory::Category | _category |
Complete flexible conjugate gradient method.
This solver is a simple modification of the RestartedFCGSolver and, if possible, uses mmax old directions. It uses noticably more memory, but provides more stability for preconditioner changes.
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inherited |
Type of the domain of the operator to be inverted.
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inherited |
The field type of the operator.
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protectedinherited |
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inherited |
Type of the range of the operator to be inverted.
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inherited |
The real type of the field type (is the same if using real numbers, but differs for std::complex)
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inherited |
scalar type underlying the field_type
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protectedinherited |
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inlinevirtualinherited |
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. |
SolverAbort | When the solver detects a problem and cannot continue |
Implements Dune::InverseOperator< X, X >.
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inlineoverridevirtual |
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. |
SolverAbort | When the solver detects a problem and cannot continue |
Reimplemented from Dune::RestartedFCGSolver< X >.
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inlinevirtualinherited |
Category of the solver (see SolverCategory::Category)
Implements Dune::InverseOperator< X, X >.
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inlineinherited |
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inlineprotectedinherited |
helper function for printing header of solver output
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inlineprotectedinherited |
helper function for printing solver output
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inlineprotectedinherited |
helper function for printing solver output
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protectedinherited |
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protectedinherited |
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protectedinherited |
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protectedinherited |
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protectedinherited |
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protectedinherited |
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protectedinherited |
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protectedinherited |