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

Belos's class for applying the GMRES polynomial operator that is used by the hybrid-GMRES linear solver. More...

#include <BelosGmresPolyOp.hpp>

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

Public Member Functions
Constructor/Destructor
	GmresPolyOp (const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &problem_in, const Teuchos::RCP< Teuchos::ParameterList > &params_in)
	Basic contstructor. More...
	GmresPolyOp (const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &problem_in)
	Given no ParameterList, constructor creates no polynomial and only applies the given operator. More...
virtual	~GmresPolyOp ()
	Destructor. More...
Parameter processing method
void	setParameters (const Teuchos::RCP< Teuchos::ParameterList > &params_in)
	Process the passed in parameters. More...
Polynomial creation method
void	generateArnoldiPoly ()
	This routine takes the matrix, preconditioner, and vectors from the linear problem as well as the parameters to generate the Arnoldi polynomial. More...
void	generateGmresPoly ()
	This routine takes the matrix, preconditioner, and vectors from the linear problem as well as the parameters to generate the Gmres polynomial. More...
Public Member Functions inherited from Belos::Operator< ScalarType >
	Operator ()
	Default constructor (does nothing). More...
virtual	~Operator ()
	Virtual destructor, for memory safety of derived classes. More...
virtual bool	HasApplyTranspose () const
	Whether this operator implements applying the transpose. More...

Operator application method
void	ApplyPoly (const MV &x, MV &y) const
	This routine takes the MV x and applies the polynomial operator phi(OP) to it resulting in the MV y, which is returned. More...
void	ApplyArnoldiPoly (const MV &x, MV &y) const
void	ApplyGmresPoly (const MV &x, MV &y) const
void	ApplyRootsPoly (const MV &x, MV &y) const
void	Apply (const MultiVec< ScalarType > &x, MultiVec< ScalarType > &y, ETrans=NOTRANS) const
	This routine casts the MultiVec to GmresPolyMv to retrieve the MV. Then the above apply method is called. More...
int	polyDegree () const

Detailed Description

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

Belos's class for applying the GMRES polynomial operator that is used by the hybrid-GMRES linear solver.

This operator is used as the interface to the matrix polynomial (phi(A)), solution (X), and right-hand side (B) of the linear system phi(A)X = B. Furthermore, it is also the interface to left/right preconditioning of the linear system.

Author

Heidi Thornquist and Jennifer Loe

Definition at line 163 of file BelosGmresPolyOp.hpp.

Constructor & Destructor Documentation

template<class ScalarType , class MV , class OP >

Belos::GmresPolyOp< ScalarType, MV, OP >::GmresPolyOp ( const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &  problem_in, const Teuchos::RCP< Teuchos::ParameterList > &  params_in  )

inline

Basic contstructor.

Definition at line 170 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

Belos::GmresPolyOp< ScalarType, MV, OP >::GmresPolyOp ( const Teuchos::RCP< LinearProblem< ScalarType, MV, OP > > &  problem_in )

inline

Given no ParameterList, constructor creates no polynomial and only applies the given operator.

Definition at line 195 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

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

inlinevirtual

Destructor.

Definition at line 203 of file BelosGmresPolyOp.hpp.

Member Function Documentation

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::setParameters

(

const Teuchos::RCP< Teuchos::ParameterList > &

params_in

)

Process the passed in parameters.

Definition at line 321 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::generateArnoldiPoly

(

)

This routine takes the matrix, preconditioner, and vectors from the linear problem as well as the parameters to generate the Arnoldi polynomial.

Definition at line 485 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::generateGmresPoly

(

)

This routine takes the matrix, preconditioner, and vectors from the linear problem as well as the parameters to generate the Gmres polynomial.

Definition at line 385 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::ApplyPoly	(	const MV &	x,
		MV &	y
	)		const

This routine takes the MV x and applies the polynomial operator phi(OP) to it resulting in the MV y, which is returned.

  \note It is expected that any problem with applying this operator to \c x will be

indicated by an std::exception being thrown.

Definition at line 859 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::ApplyArnoldiPoly	(	const MV &	x,
		MV &	y
	)		const

Definition at line 997 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::ApplyGmresPoly	(	const MV &	x,
		MV &	y
	)		const

Definition at line 876 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::ApplyRootsPoly	(	const MV &	x,
		MV &	y
	)		const

Definition at line 924 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

void Belos::GmresPolyOp< ScalarType, MV, OP >::Apply ( const MultiVec< ScalarType > &  x, MultiVec< ScalarType > &  y, ETrans  = NOTRANS  ) const

inlinevirtual

This routine casts the MultiVec to GmresPolyMv to retrieve the MV. Then the above apply method is called.

Implements Belos::Operator< ScalarType >.

Definition at line 244 of file BelosGmresPolyOp.hpp.

template<class ScalarType , class MV , class OP >

int Belos::GmresPolyOp< ScalarType, MV, OP >::polyDegree ( ) const

inline

Definition at line 251 of file BelosGmresPolyOp.hpp.

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

• BelosGmresPolyOp.hpp