Belos
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Hybrid block GMRES iterative linear solver. More...
#include <BelosGmresPolySolMgr.hpp>
Public Member Functions | |
Constructors/Destructor | |
GmresPolySolMgr () | |
Empty constructor for GmresPolySolMgr. This constructor takes no arguments and sets the default values for the solver. The linear problem must be passed in using setProblem() before solve() is called on this object. The solver values can be changed using setParameters(). More... | |
GmresPolySolMgr (const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &problem, const Teuchos::RCP< Teuchos::ParameterList > &pl) | |
Basic constructor for GmresPolySolMgr. More... | |
virtual | ~GmresPolySolMgr () |
Destructor. More... | |
Accessor methods | |
const LinearProblem< ScalarType, MV, OP > & | getProblem () const |
Get current linear problem being solved for in this object. More... | |
Teuchos::RCP< const Teuchos::ParameterList > | getValidParameters () const |
Get a parameter list containing the valid parameters for this object. More... | |
Teuchos::RCP< const Teuchos::ParameterList > | getCurrentParameters () const |
Get a parameter list containing the current parameters for this object. More... | |
Teuchos::Array< Teuchos::RCP< Teuchos::Time > > | getTimers () const |
Return the timers for this object. More... | |
int | getNumIters () const |
Get the iteration count for the most recent call to solve() . More... | |
bool | isLOADetected () const |
Return whether a loss of accuracy was detected by this solver during the most current solve. More... | |
Set methods | |
void | setProblem (const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &problem) |
Set the linear problem that needs to be solved. More... | |
void | setParameters (const Teuchos::RCP< Teuchos::ParameterList > ¶ms) |
Set the parameters the solver manager should use to solve the linear problem. More... | |
Reset methods | |
void | reset (const ResetType type) |
Reset the solver. More... | |
Solver application methods | |
ReturnType | solve () |
This method performs possibly repeated calls to the underlying linear solver's iterate() routine until the problem has been solved (as decided by the solver manager) or the solver manager decides to quit. More... | |
Overridden from Teuchos::Describable | |
std::string | description () const |
Method to return description of the hybrid block GMRES solver manager. More... | |
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SolverManager () | |
Empty constructor. More... | |
virtual | ~SolverManager () |
Destructor. More... | |
virtual Teuchos::ScalarTraits< ScalarType >::magnitudeType | achievedTol () const |
Tolerance achieved by the last solve() invocation. More... | |
virtual void | setUserConvStatusTest (const Teuchos::RCP< StatusTest< ScalarType, MV, OP > > &userConvStatusTest, const typename StatusTestCombo< ScalarType, MV, OP >::ComboType &comboType=StatusTestCombo< ScalarType, MV, OP >::SEQ) |
Set user-defined convergence status test. More... | |
virtual void | setDebugStatusTest (const Teuchos::RCP< StatusTest< ScalarType, MV, OP > > &debugStatusTest) |
Set user-defined debug status test. More... | |
Hybrid block GMRES iterative linear solver.
Definition at line 155 of file BelosGmresPolySolMgr.hpp.
Belos::GmresPolySolMgr< ScalarType, MV, OP >::GmresPolySolMgr | ( | ) |
Empty constructor for GmresPolySolMgr. This constructor takes no arguments and sets the default values for the solver. The linear problem must be passed in using setProblem() before solve() is called on this object. The solver values can be changed using setParameters().
Definition at line 432 of file BelosGmresPolySolMgr.hpp.
Belos::GmresPolySolMgr< ScalarType, MV, OP >::GmresPolySolMgr | ( | const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > & | problem, |
const Teuchos::RCP< Teuchos::ParameterList > & | pl | ||
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Basic constructor for GmresPolySolMgr.
This constructor accepts the LinearProblem to be solved in addition to a parameter list of options for the solver manager. These options include the following:
int
specifying the block size to be used by the underlying block GMRES solver. Default: 1int
specifying the number of blocks allocated for the Krylov basis. Default: 300int
specifying the maximum number of iterations the underlying solver is allowed to perform. Default: 1000int
specifying the maximum number of restarts the underlying solver is allowed to perform. Default: 20std::string
specifying the desired orthogonalization: DGKS, ICGS, and IMGS. Default: "DGKS"MagnitudeType
specifying the level that residual norms must reach to decide convergence. Default: 1e-8 Definition at line 463 of file BelosGmresPolySolMgr.hpp.
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Destructor.
Definition at line 192 of file BelosGmresPolySolMgr.hpp.
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inlinevirtual |
Get current linear problem being solved for in this object.
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 200 of file BelosGmresPolySolMgr.hpp.
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Get a parameter list containing the valid parameters for this object.
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 508 of file BelosGmresPolySolMgr.hpp.
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inlinevirtual |
Get a parameter list containing the current parameters for this object.
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 210 of file BelosGmresPolySolMgr.hpp.
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inline |
Return the timers for this object.
The timers are ordered as follows:
Definition at line 217 of file BelosGmresPolySolMgr.hpp.
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inlinevirtual |
Get the iteration count for the most recent call to solve()
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Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 222 of file BelosGmresPolySolMgr.hpp.
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inlinevirtual |
Return whether a loss of accuracy was detected by this solver during the most current solve.
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 229 of file BelosGmresPolySolMgr.hpp.
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inlinevirtual |
Set the linear problem that needs to be solved.
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 237 of file BelosGmresPolySolMgr.hpp.
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Set the parameters the solver manager should use to solve the linear problem.
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 569 of file BelosGmresPolySolMgr.hpp.
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inlinevirtual |
Reset the solver.
type | [in] How to reset the solver. |
If type includes Belos::Problem, then reset the solver's state. This clears out the stored coefficients, so that the next call to solve() actually computes a full block GMRES solve, instead of just reusing the coefficients from the first solve.
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 254 of file BelosGmresPolySolMgr.hpp.
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virtual |
This method performs possibly repeated calls to the underlying linear solver's iterate() routine until the problem has been solved (as decided by the solver manager) or the solver manager decides to quit.
This method calls BlockGmresIter::iterate(), which will return either because a specially constructed status test evaluates to Passed or an std::exception is thrown.
A return from BlockGmresIter::iterate() signifies one of the following scenarios:
Implements Belos::SolverManager< ScalarType, MV, OP >.
Definition at line 1073 of file BelosGmresPolySolMgr.hpp.
std::string Belos::GmresPolySolMgr< ScalarType, MV, OP >::description | ( | ) | const |
Method to return description of the hybrid block GMRES solver manager.
Definition at line 1427 of file BelosGmresPolySolMgr.hpp.