Hybrid block GMRES iterative linear solver. More...

#include <BelosGmresPolySolMgr.hpp>

Inheritance diagram for Belos::GmresPolySolMgr< ScalarType, MV, OP >:

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...

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
	Get current linear problem being solved for in this object. 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...

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
	Reset the solver. 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 hybrid block GMRES solver manager. More...

Public Member Functions inherited from Belos::SolverManager< ScalarType, MV, OP >
	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 > > &, 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::GmresPolySolMgr< ScalarType, MV, OP >

Hybrid block GMRES iterative linear solver.

Author: Heidi Thornquist and Jennifer Loe

Examples:: BlockGmres/BlockGmresPolyEpetraExFile.cpp.

Definition at line 134 of file BelosGmresPolySolMgr.hpp.

Constructor & Destructor Documentation

template<class ScalarType , class MV , class OP >

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 325 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

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

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:

"Maximum Degree" - a int specifying the maximum degree of the polynomial. Default: 25
"Orthogonalization" - a std::string specifying the desired orthogonalization: DGKS, ICGS, and IMGS. Default: "DGKS"
"Verbosity" - a sum of MsgType specifying the verbosity. Default: Belos::Errors
"Polynomial Tolerance" - a MagnitudeType specifying the polynomial tolerance (sometimes) used to generate polynomial.

Definition at line 345 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

virtual Belos::GmresPolySolMgr< ScalarType, MV, OP >::~GmresPolySolMgr ( )

inlinevirtual

Destructor.

Definition at line 168 of file BelosGmresPolySolMgr.hpp.

Member Function Documentation

template<class ScalarType , class MV , class OP >

Teuchos::RCP<SolverManager<ScalarType, MV, OP> > Belos::GmresPolySolMgr< ScalarType, MV, OP >::clone ( ) const

inlineoverridevirtual

clone for Inverted Injection (DII)

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

Definition at line 171 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

const LinearProblem<ScalarType,MV,OP>& Belos::GmresPolySolMgr< ScalarType, MV, OP >::getProblem ( ) const

inlineoverridevirtual

Get current linear problem being solved for in this object.

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

Definition at line 181 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

Teuchos::RCP< const Teuchos::ParameterList > Belos::GmresPolySolMgr< 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 379 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

Teuchos::RCP<const Teuchos::ParameterList> Belos::GmresPolySolMgr< 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 191 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

Teuchos::Array<Teuchos::RCP<Teuchos::Time> > Belos::GmresPolySolMgr< ScalarType, MV, OP >::getTimers ( ) const

inline

Return the timers for this object.

The timers are ordered as follows:

time spent in solve() routine

Definition at line 198 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

int Belos::GmresPolySolMgr< 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 203 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

bool Belos::GmresPolySolMgr< 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 210 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolySolMgr< 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 218 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolySolMgr< 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 412 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolySolMgr< ScalarType, MV, OP >::reset ( const ResetType type )

inlineoverridevirtual

Reset the solver.

Parameters

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 235 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

ReturnType Belos::GmresPolySolMgr< 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 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:

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 543 of file BelosGmresPolySolMgr.hpp.

template<class ScalarType , class MV , class OP >

std::string Belos::GmresPolySolMgr< ScalarType, MV, OP >::description ( ) const

overridevirtual

Method to return description of the hybrid block GMRES solver manager.

Reimplemented from Teuchos::Describable.

Definition at line 650 of file BelosGmresPolySolMgr.hpp.

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

BelosGmresPolySolMgr.hpp

Public Member Functions

Additional Inherited Members

Detailed Description

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

Constructor & Destructor Documentation

Member Function Documentation

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