Simple OrthoManager implementation for benchmarks. More...

#include <BelosSimpleOrthoManager.hpp>

Inheritance diagram for Belos::SimpleOrthoManager< Scalar, MV >:

Public Types
typedef Scalar	scalar_type

typedef Teuchos::ScalarTraits < Scalar >::magnitudeType	magnitude_type

typedef Teuchos::SerialDenseMatrix < int, Scalar >	mat_type

typedef Teuchos::RCP < Teuchos::SerialDenseMatrix < int, Scalar > >	mat_ptr

Public Member Functions
Teuchos::RCP< const Teuchos::ParameterList >	getValidParameters () const
	Get a default list of parameters. More...

Teuchos::RCP< const Teuchos::ParameterList >	getFastParameters ()
	Get a "fast" list of parameters. More...

void	setParameterList (const Teuchos::RCP< Teuchos::ParameterList > &plist)

	SimpleOrthoManager (const Teuchos::RCP< OutputManager< Scalar > > &outMan, const std::string &label, const Teuchos::RCP< Teuchos::ParameterList > &params)
	Constructor. More...

	SimpleOrthoManager (const std::string &label="Belos")
	Constructor. More...

virtual	~SimpleOrthoManager ()
	Virtual destructor for memory safety of derived classes. More...

void	innerProd (const MV &X, const MV &Y, mat_type &Z) const
	Provides the inner product defining the orthogonality concepts. More...

void	norm (const MV &X, std::vector< magnitude_type > &normVec) const

void	project (MV &X, Teuchos::Array< mat_ptr > C, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const

int	normalize (MV &X, mat_ptr B) const

magnitude_type	orthonormError (const MV &X) const
	This method computes the error in orthonormality of a multivector. More...

magnitude_type	orthogError (const MV &X1, const MV &X2) const
	This method computes the error in orthogonality of two multivectors. More...

void	setLabel (const std::string &label)
	This method sets the label used by the timers in the orthogonalization manager. More...

const std::string &	getLabel () const
	This method returns the label being used by the timers in the orthogonalization manager. More...

Public Member Functions inherited from Belos::OrthoManager< Scalar, MV >
	OrthoManager ()
	Default constructor. More...

virtual	~OrthoManager ()
	Destructor. More...

virtual void	norm (const MV &X, std::vector< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &normvec) const =0
	Compute the norm(s) of the column(s) of X. More...

virtual void	project (MV &X, Teuchos::Array< Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > > C, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const =0
	Project X against the (orthogonal) entries of Q. More...

virtual int	normalize (MV &X, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > B) const =0
	This method takes a multivector `X` and attempts to compute an orthonormal basis for , with respect to innerProd(). More...

int	projectAndNormalize (MV &X, Teuchos::Array< Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > > C, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > B, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const
	Project X against the Q[i] and normalize X. More...

Public Member Functions inherited from Teuchos::ParameterListAcceptorDefaultBase
RCP< ParameterList >	getNonconstParameterList ()

RCP< ParameterList >	unsetParameterList ()

RCP< const ParameterList >	getParameterList () const

Protected Member Functions
virtual int	projectAndNormalizeImpl (MV &X, Teuchos::Array< mat_ptr > C, mat_ptr B, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const

Protected Member Functions inherited from Belos::OrthoManager< Scalar, MV >
virtual int	projectAndNormalizeImpl (MV &X, Teuchos::Array< Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > > C, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > B, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const =0

Protected Member Functions inherited from Teuchos::ParameterListAcceptorDefaultBase
void	setMyParamList (const RCP< ParameterList > &paramList)

RCP< ParameterList >	getMyNonconstParamList ()

RCP< const ParameterList >	getMyParamList () const

Private Types
typedef MultiVecTraits< Scalar, MV >	MVT

typedef Teuchos::ScalarTraits < Scalar >	STS

typedef Teuchos::ScalarTraits < magnitude_type >	STM

Private Member Functions
int	normalizeMgs (MV &X, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > B) const

int	normalizeCgs (MV &X, mat_ptr B) const

void	allocateProjectionCoefficients (Teuchos::Array< mat_ptr > &C, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q, const MV &X, const bool attemptToRecycle=true) const

void	rawProject (MV &X, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q, Teuchos::ArrayView< mat_ptr > C) const

Private Attributes
std::string	label_
	Label for Belos timer display. More...

Teuchos::RCP< OutputManager < Scalar > >	outMan_
	Output manager (used mainly for debugging). More...

bool	reorthogonalize_
	Whether or not to do (unconditional) reorthogonalization. More...

bool	useMgs_
	Whether to use MGS or CGS in the normalize() step. More...

Teuchos::RCP < Teuchos::ParameterList >	defaultParams_
	Default parameter list. More...

Detailed Description

template<class Scalar, class MV>
class Belos::SimpleOrthoManager< Scalar, MV >

Simple OrthoManager implementation for benchmarks.

Author: Mark Hoemmen

This is a very simple orthogonalization method and should only be used for benchmarks. It performs optional unconditional reorthogonalization (no norm tests), but has no rank-revealing features.

Definition at line 68 of file BelosSimpleOrthoManager.hpp.

Member Typedef Documentation

template<class Scalar, class MV>

typedef Scalar Belos::SimpleOrthoManager< Scalar, MV >::scalar_type

Definition at line 73 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

typedef Teuchos::ScalarTraits<Scalar>::magnitudeType Belos::SimpleOrthoManager< Scalar, MV >::magnitude_type

Definition at line 74 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

typedef Teuchos::SerialDenseMatrix<int, Scalar> Belos::SimpleOrthoManager< Scalar, MV >::mat_type

Definition at line 75 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

typedef Teuchos::RCP<Teuchos::SerialDenseMatrix<int, Scalar> > Belos::SimpleOrthoManager< Scalar, MV >::mat_ptr

Definition at line 76 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

typedef MultiVecTraits<Scalar, MV> Belos::SimpleOrthoManager< Scalar, MV >::MVT

private

Definition at line 79 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

typedef Teuchos::ScalarTraits<Scalar> Belos::SimpleOrthoManager< Scalar, MV >::STS

private

Definition at line 80 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

typedef Teuchos::ScalarTraits<magnitude_type> Belos::SimpleOrthoManager< Scalar, MV >::STM

private

Definition at line 81 of file BelosSimpleOrthoManager.hpp.

Constructor & Destructor Documentation

template<class Scalar, class MV>

Belos::SimpleOrthoManager< Scalar, MV >::SimpleOrthoManager	(	const Teuchos::RCP< OutputManager< Scalar > > &	outMan,
		const std::string &	label,
		const Teuchos::RCP< Teuchos::ParameterList > &	params
	)

inline

Constructor.

Parameters

outMan	[in/out] Output manager. If not null, use for various kinds of status output (in particular, for debugging).
label	[in] Label for Belos timers.
params	[in/out] List of configuration parameters. Call getDefaultParameters() or getFastParameters() for valid parameter lists.

Definition at line 219 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

Belos::SimpleOrthoManager< Scalar, MV >::SimpleOrthoManager ( const std::string & label = "Belos" )

inline

Constructor.

Parameters

label [in] Label for Belos timers.

Definition at line 246 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

virtual Belos::SimpleOrthoManager< Scalar, MV >::~SimpleOrthoManager ( )

inlinevirtual

Virtual destructor for memory safety of derived classes.

Definition at line 259 of file BelosSimpleOrthoManager.hpp.

Member Function Documentation

template<class Scalar, class MV>

Teuchos::RCP<const Teuchos::ParameterList> Belos::SimpleOrthoManager< Scalar, MV >::getValidParameters ( ) const

inlinevirtual

Get a default list of parameters.

The "default" parameter list sets reasonably safe options in terms of accuracy of the computed orthogonalization. Call getFastParameters() if you prefer to sacrifice some accuracy for speed.

Reimplemented from Teuchos::ParameterListAcceptor.

Definition at line 129 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

Teuchos::RCP<const Teuchos::ParameterList> Belos::SimpleOrthoManager< Scalar, MV >::getFastParameters ( )

inline

Get a "fast" list of parameters.

The "fast" parameter list favors speed of orthogonalization, but sacrifices some safety and accuracy. Call getDefaultParameters() for safer and more accurate options.

Definition at line 158 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

void Belos::SimpleOrthoManager< Scalar, MV >::setParameterList ( const Teuchos::RCP< Teuchos::ParameterList > & plist )

inlinevirtual

Implements Teuchos::ParameterListAcceptor.

Definition at line 177 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

void Belos::SimpleOrthoManager< Scalar, MV >::innerProd	(	const MV &	X,
		const MV &	Y,
		mat_type &	Z
	)		const

inlinevirtual

Provides the inner product defining the orthogonality concepts.

All concepts of orthogonality discussed in this class are with respect to this inner product.

Note: This can be different than the MvTransMv method from the multivector class. For example, if there is a mass matrix M, then this might be the M inner product ( ).

Implements Belos::OrthoManager< Scalar, MV >.

Definition at line 261 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

void Belos::SimpleOrthoManager< Scalar, MV >::norm	(	const MV &	X,
		std::vector< magnitude_type > &	normVec
	)		const

inline

Definition at line 265 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

void Belos::SimpleOrthoManager< Scalar, MV >::project	(	MV &	X,
		Teuchos::Array< mat_ptr >	C,
		Teuchos::ArrayView< Teuchos::RCP< const MV > >	Q
	)		const

inline

Definition at line 276 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

int Belos::SimpleOrthoManager< Scalar, MV >::normalize	(	MV &	X,
		mat_ptr	B
	)		const

inline

Definition at line 296 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

virtual int Belos::SimpleOrthoManager< Scalar, MV >::projectAndNormalizeImpl	(	MV &	X,
		Teuchos::Array< mat_ptr >	C,
		mat_ptr	B,
		Teuchos::ArrayView< Teuchos::RCP< const MV > >	Q
	)		const

inlineprotectedvirtual

Definition at line 312 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

magnitude_type Belos::SimpleOrthoManager< Scalar, MV >::orthonormError ( const MV & X ) const

inlinevirtual

This method computes the error in orthonormality of a multivector.

Implements Belos::OrthoManager< Scalar, MV >.

Definition at line 326 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

magnitude_type Belos::SimpleOrthoManager< Scalar, MV >::orthogError	(	const MV &	X1,
		const MV &	X2
	)		const

inlinevirtual

This method computes the error in orthogonality of two multivectors.

Implements Belos::OrthoManager< Scalar, MV >.

Definition at line 339 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

void Belos::SimpleOrthoManager< Scalar, MV >::setLabel ( const std::string & label )

inlinevirtual

This method sets the label used by the timers in the orthogonalization manager.

Implements Belos::OrthoManager< Scalar, MV >.

Definition at line 348 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

const std::string& Belos::SimpleOrthoManager< Scalar, MV >::getLabel ( ) const

inlinevirtual

This method returns the label being used by the timers in the orthogonalization manager.

Implements Belos::OrthoManager< Scalar, MV >.

Definition at line 349 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

int Belos::SimpleOrthoManager< Scalar, MV >::normalizeMgs	(	MV &	X,
		Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > >	B
	)		const

inlineprivate

Definition at line 354 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

int Belos::SimpleOrthoManager< Scalar, MV >::normalizeCgs	(	MV &	X,
		mat_ptr	B
	)		const

inlineprivate

Definition at line 409 of file BelosSimpleOrthoManager.hpp.

template<class Scalar, class MV>

void Belos::SimpleOrthoManager< Scalar, MV >::allocateProjectionCoefficients	(	Teuchos::Array< mat_ptr > &	C,
		Teuchos::ArrayView< Teuchos::RCP< const MV > >	Q,
		const MV &	X,
		const bool	attemptToRecycle = `true`
	)		const