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Belos::BiCGStabSolMgr< ScalarType, MV, OP > Class Template Reference

The Belos::BiCGStabSolMgr provides a powerful and fully-featured solver manager over the pseudo-block BiCGStab iteration. More...

#include <BelosBiCGStabSolMgr.hpp>

Inheritance diagram for Belos::BiCGStabSolMgr< ScalarType, MV, OP >:
Inheritance graph
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Public Member Functions

Constructors/Destructor
 BiCGStabSolMgr ()
 Empty constructor for BiCGStabSolMgr. 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...
 
 BiCGStabSolMgr (const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &problem, const Teuchos::RCP< Teuchos::ParameterList > &pl)
 Basic constructor for BiCGStabSolMgr. More...
 
virtual ~BiCGStabSolMgr ()
 Destructor. More...
 
Teuchos::RCP< SolverManager
< ScalarType, MV, OP > > 
clone () const override
 clone for Inverted Injection (DII) More...
 
Accessor methods
const LinearProblem
< ScalarType, MV, OP > & 
getProblem () const override
 Return a reference to the linear problem being solved by this solver manager. More...
 
Teuchos::RCP< const
Teuchos::ParameterList
getValidParameters () const override
 Get a parameter list containing the valid parameters for this object. More...
 
Teuchos::RCP< const
Teuchos::ParameterList
getCurrentParameters () const override
 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...
 
MagnitudeType achievedTol () const override
 Tolerance achieved by the last solve() invocation. More...
 
int getNumIters () const override
 Get the iteration count for the most recent call to solve(). More...
 
bool isLOADetected () const override
 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) override
 Set the linear problem that needs to be solved. More...
 
void setParameters (const Teuchos::RCP< Teuchos::ParameterList > &params) override
 Set the parameters the solver manager should use to solve the linear problem. More...
 
Reset methods
void reset (const ResetType type) override
 Performs a reset of the solver manager specified by the ResetType. This informs the solver manager that the solver should prepare for the next call to solve by resetting certain elements of the iterative solver strategy. More...
 
Solver application methods
ReturnType solve () override
 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 override
 Method to return description of the block BiCGStab solver manager. More...
 
- Public Member Functions inherited from Belos::SolverManager< ScalarType, MV, OP >
 SolverManager ()
 Empty constructor. More...
 
virtual ~SolverManager ()
 Destructor. More...
 
virtual void setUserConvStatusTest (const Teuchos::RCP< StatusTest< ScalarType, MV, OP > > &, const typename StatusTestCombo< ScalarType, MV, OP >::ComboType &=StatusTestCombo< ScalarType, MV, OP >::SEQ)
 Set user-defined convergence status test. More...
 
virtual void setDebugStatusTest (const Teuchos::RCP< StatusTest< ScalarType, MV, OP > > &)
 Set user-defined debug status test. More...
 
- Public Member Functions inherited from Teuchos::Describable
virtual void describe (FancyOStream &out, const EVerbosityLevel verbLevel=verbLevel_default) const
 
void describe (std::ostream &out, const EVerbosityLevel verbLevel=verbLevel_default) const
 
virtual ~Describable ()
 
 LabeledObject ()
 
virtual ~LabeledObject ()
 
virtual void setObjectLabel (const std::string &objectLabel)
 
virtual std::string getObjectLabel () const
 
DescribableStreamManipulatorState describe (const Describable &describable, const EVerbosityLevel verbLevel=Describable::verbLevel_default)
 
std::ostream & operator<< (std::ostream &os, const DescribableStreamManipulatorState &d)
 

Additional Inherited Members

- Static Public Attributes inherited from Teuchos::Describable
static const EVerbosityLevel verbLevel_default
 

Detailed Description

template<class ScalarType, class MV, class OP>
class Belos::BiCGStabSolMgr< ScalarType, MV, OP >

The Belos::BiCGStabSolMgr provides a powerful and fully-featured solver manager over the pseudo-block BiCGStab iteration.

Author
Alicia Klinvex

Definition at line 65 of file BelosBiCGStabSolMgr.hpp.

Constructor & Destructor Documentation

template<class ScalarType , class MV , class OP >
Belos::BiCGStabSolMgr< ScalarType, MV, OP >::BiCGStabSolMgr ( )

Empty constructor for BiCGStabSolMgr. 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 261 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
Belos::BiCGStabSolMgr< ScalarType, MV, OP >::BiCGStabSolMgr ( const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &  problem,
const Teuchos::RCP< Teuchos::ParameterList > &  pl 
)

Basic constructor for BiCGStabSolMgr.

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:

  • "Maximum Iterations" - a int specifying the maximum number of iterations the underlying solver is allowed to perform.
  • "Verbosity" - a sum of MsgType specifying the verbosity. Default: Belos::Errors
  • "Output Style" - a OutputType specifying the style of output. Default: Belos::General
  • "Convergence Tolerance" - a MagnitudeType specifying the level that residual norms must reach to decide convergence.

Definition at line 279 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
virtual Belos::BiCGStabSolMgr< ScalarType, MV, OP >::~BiCGStabSolMgr ( )
inlinevirtual

Destructor.

Definition at line 99 of file BelosBiCGStabSolMgr.hpp.

Member Function Documentation

template<class ScalarType , class MV , class OP >
Teuchos::RCP<SolverManager<ScalarType, MV, OP> > Belos::BiCGStabSolMgr< ScalarType, MV, OP >::clone ( ) const
inlineoverridevirtual

clone for Inverted Injection (DII)

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 102 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
const LinearProblem<ScalarType,MV,OP>& Belos::BiCGStabSolMgr< ScalarType, MV, OP >::getProblem ( ) const
inlineoverridevirtual

Return a reference to the linear problem being solved by this solver manager.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 110 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
Teuchos::RCP< const Teuchos::ParameterList > Belos::BiCGStabSolMgr< ScalarType, MV, OP >::getValidParameters ( ) const
overridevirtual

Get a parameter list containing the valid parameters for this object.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 524 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
Teuchos::RCP<const Teuchos::ParameterList> Belos::BiCGStabSolMgr< ScalarType, MV, OP >::getCurrentParameters ( ) const
inlineoverridevirtual

Get a parameter list containing the current parameters for this object.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 120 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
Teuchos::Array<Teuchos::RCP<Teuchos::Time> > Belos::BiCGStabSolMgr< ScalarType, MV, OP >::getTimers ( ) const
inline

Return the timers for this object.

The timers are ordered as follows:

Definition at line 127 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
MagnitudeType Belos::BiCGStabSolMgr< ScalarType, MV, OP >::achievedTol ( ) const
inlineoverridevirtual

Tolerance achieved by the last solve() invocation.

This is the maximum over all right-hand sides' achieved convergence tolerances, and is set whether or not the solve actually managed to achieve the desired convergence tolerance.

Warning
This result may not be meaningful if there was a loss of accuracy during the solve. You should first call isLOADetected() to check for a loss of accuracy during the last solve.

Reimplemented from Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 142 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
int Belos::BiCGStabSolMgr< ScalarType, MV, OP >::getNumIters ( ) const
inlineoverridevirtual

Get the iteration count for the most recent call to solve().

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 147 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
bool Belos::BiCGStabSolMgr< ScalarType, MV, OP >::isLOADetected ( ) const
inlineoverridevirtual

Return whether a loss of accuracy was detected by this solver during the most current solve.

Note
This flag will be reset the next time solve() is called.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 154 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
void Belos::BiCGStabSolMgr< ScalarType, MV, OP >::setProblem ( const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &  problem)
inlineoverridevirtual

Set the linear problem that needs to be solved.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 162 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
void Belos::BiCGStabSolMgr< ScalarType, MV, OP >::setParameters ( const Teuchos::RCP< Teuchos::ParameterList > &  params)
overridevirtual

Set the parameters the solver manager should use to solve the linear problem.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 308 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
void Belos::BiCGStabSolMgr< ScalarType, MV, OP >::reset ( const ResetType  type)
inlineoverridevirtual

Performs a reset of the solver manager specified by the ResetType. This informs the solver manager that the solver should prepare for the next call to solve by resetting certain elements of the iterative solver strategy.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 175 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
ReturnType Belos::BiCGStabSolMgr< ScalarType, MV, OP >::solve ( )
overridevirtual

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 BiCGStabIter::iterate(), which will return either because a specially constructed status test evaluates to Passed or an std::exception is thrown.

A return from BiCGStabIter::iterate() signifies one of the following scenarios:

  • the maximum number of restarts has been exceeded. In this scenario, the current solutions to the linear system will be placed in the linear problem and return Unconverged.
  • global convergence has been met. In this case, the current solutions to the linear system will be placed in the linear problem and the solver manager will return Converged
Returns
ReturnType specifying:
  • Converged: the linear problem was solved to the specification required by the solver manager.
  • Unconverged: the linear problem was not solved to the specification desired by the solver manager.

Implements Belos::SolverManager< ScalarType, MV, OP >.

Definition at line 579 of file BelosBiCGStabSolMgr.hpp.

template<class ScalarType , class MV , class OP >
std::string Belos::BiCGStabSolMgr< ScalarType, MV, OP >::description ( ) const
overridevirtual

Method to return description of the block BiCGStab solver manager.

Reimplemented from Teuchos::Describable.

Definition at line 827 of file BelosBiCGStabSolMgr.hpp.


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

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