MatOrthoManager subclass using TSQR or DGKS. More...

#include <BelosTsqrOrthoManager.hpp>

Inheritance diagram for Belos::TsqrMatOrthoManager< Scalar, MV, OP >:

Public Types
typedef Scalar	scalar_type

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

typedef MV	multivector_type
	Multivector type with which this class was specialized. More...

typedef OP	operator_type
	Operator type with which this class was specialized. More...

typedef Teuchos::SerialDenseMatrix < int, Scalar >	mat_type

typedef Teuchos::RCP< mat_type >	mat_ptr

Public Types inherited from Belos::OutOfPlaceNormalizerMixin< Scalar, MV >
typedef Scalar	scalar_type

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

typedef MV	multivector_type
	Multivector type with which this class was specialized. More...

typedef Teuchos::SerialDenseMatrix < int, Scalar >	mat_type

typedef Teuchos::RCP< mat_type >	mat_ptr

Public Member Functions
	TsqrMatOrthoManager (const Teuchos::RCP< Teuchos::ParameterList > &params, const std::string &label="Belos", Teuchos::RCP< const OP > Op=Teuchos::null)
	Constructor (that sets user-specified parameters). More...

	TsqrMatOrthoManager (const std::string &label="Belos", Teuchos::RCP< const OP > Op=Teuchos::null)
	Constructor (that sets default parameters). More...

virtual	~TsqrMatOrthoManager ()
	Destructor (declared virtual for memory safety of derived classes). More...

Teuchos::RCP< const Teuchos::ParameterList >	getValidParameters () const
	Get default parameters for TsqrMatOrthoManager. More...

Teuchos::RCP< const Teuchos::ParameterList >	getFastParameters ()
	Get "fast" parameters for TsqrMatOrthoManager. More...

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

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

void	setOp (Teuchos::RCP< const OP > Op)

Teuchos::RCP< const OP >	getOp () const

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

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

int	normalize (MV &X, Teuchos::RCP< MV > MX, mat_ptr B) const

int	normalize (MV &X, mat_ptr B) const

int	normalizeOutOfPlace (MV &X, MV &Q, mat_ptr B) const
	Normalize X into Q*B. More...

int	projectAndNormalizeOutOfPlace (MV &X_in, MV &X_out, Teuchos::Array< mat_ptr > C, mat_ptr B, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const
	Project and normalize X_in into X_out. More...

magnitude_type	orthonormError (const MV &X, Teuchos::RCP< const MV > MX) const
	This method computes the error in orthonormality of a multivector. The method has the option of exploiting a caller-provided `MX`. More...

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. This method. More...

magnitude_type	orthogError (const MV &X1, Teuchos::RCP< const MV > MX1, const MV &X2) const
	This method computes the error in orthogonality of two multivectors. The method has the option of exploiting a caller-provided `MX`. More...

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

Public Member Functions inherited from Belos::MatOrthoManager< Scalar, MV, OP >
	MatOrthoManager (Teuchos::RCP< const OP > Op=Teuchos::null)
	Default constructor. More...

virtual	~MatOrthoManager ()
	Destructor. More...

void	setOp (Teuchos::RCP< const OP > Op)
	Set operator. More...

Teuchos::RCP< const OP >	getOp () const
	Get operator. More...

void	innerProd (const MV &X, const MV &Y, Teuchos::SerialDenseMatrix< int, Scalar > &Z) const
	Provides the inner product defining the orthogonality concepts, using the provided operator. More...

void	innerProd (const MV &X, const MV &Y, Teuchos::RCP< const MV > MY, Teuchos::SerialDenseMatrix< int, Scalar > &Z) const
	Provides the inner product defining the orthogonality concepts, using the provided operator. The method has the options of exploiting a caller-provided `MX`. More...

void	norm (const MV &X, std::vector< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &normvec) const
	Provides the norm induced by innerProd(). More...

void	norm (const MV &X, Teuchos::RCP< const MV > MX, std::vector< typename Teuchos::ScalarTraits< Scalar >::magnitudeType > &normvec) const
	Compute norm of each column of X. More...

virtual void	project (MV &X, Teuchos::RCP< MV > MX, Teuchos::Array< Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > > C, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const =0
	Given a list of (mutually and internally) orthonormal bases `Q`, this method takes a multivector `X` and projects it onto the space orthogonal to the individual `Q[i]`, optionally returning the coefficients of `X` for the individual `Q[i]`. All of this is done with respect to the inner product innerProd(). More...

virtual void	project (MV &X, Teuchos::Array< Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > > C, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const
	This method calls project(X,Teuchos::null,C,Q); see documentation for that function. More...

virtual int	normalize (MV &X, Teuchos::RCP< MV > MX, 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...

virtual int	normalize (MV &X, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > B) const
	This method calls normalize(X,Teuchos::null,B); see documentation for that function. More...

int	projectAndNormalize (MV &X, Teuchos::RCP< MV > MX, Teuchos::Array< Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > > C, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, Scalar > > B, Teuchos::ArrayView< Teuchos::RCP< const MV > > Q) const
	Given a set of bases `Q[i]` and a multivector `X`, this method computes an orthonormal basis for $colspan(X) - \sum_i colspan(Q[i])$ . More...

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

virtual	~OrthoManager ()
	Destructor. More...

virtual void	innerProd (const MV &X, const MV &Y, Teuchos::SerialDenseMatrix< int, ScalarType > &Z) const =0
	Provides the inner product defining the orthogonality concepts. More...

virtual void	norm (const MV &X, std::vector< typename Teuchos::ScalarTraits< ScalarType >::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, ScalarType > > > 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, ScalarType > > 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, ScalarType > > > C, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, ScalarType > > 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

Public Member Functions inherited from Belos::OutOfPlaceNormalizerMixin< Scalar, MV >
virtual	~OutOfPlaceNormalizerMixin ()
	Trivial virtual destructor, to silence compiler warnings. More...

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

Protected Member Functions inherited from Belos::MatOrthoManager< Scalar, MV, OP >
virtual int	projectAndNormalizeWithMxImpl (MV &X, Teuchos::RCP< MV > MX, 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

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

Protected Member Functions inherited from Belos::OrthoManager< ScalarType, MV >
virtual int	projectAndNormalizeImpl (MV &X, Teuchos::Array< Teuchos::RCP< Teuchos::SerialDenseMatrix< int, ScalarType > > > C, Teuchos::RCP< Teuchos::SerialDenseMatrix< int, ScalarType > > 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

Additional Inherited Members
Protected Attributes inherited from Belos::MatOrthoManager< Scalar, MV, OP >
Teuchos::RCP< const OP >	_Op

bool	_hasOp

Detailed Description

template<class Scalar, class MV, class OP>
class Belos::TsqrMatOrthoManager< Scalar, MV, OP >

MatOrthoManager subclass using TSQR or DGKS.

Author: Mark Hoemmen

When the inner product matrix has not been set, this class uses TSQR + Block Gram-Schmidt (via TsqrOrthoManagerImpl). If the inner product matrix has been set, then this class uses classical Gram-Schmidt with reorthogonalization (via DGKSOrthoManager).

TSQR uses multivector scratch space. However, scratch space initialization is "lazy," so scratch space will not be allocated if TSQR is not used.

Definition at line 377 of file BelosTsqrOrthoManager.hpp.

Member Typedef Documentation

template<class Scalar, class MV, class OP>

typedef Scalar Belos::TsqrMatOrthoManager< Scalar, MV, OP >::scalar_type

Definition at line 382 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

Definition at line 383 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

typedef MV Belos::TsqrMatOrthoManager< Scalar, MV, OP >::multivector_type

Multivector type with which this class was specialized.

Definition at line 385 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

typedef OP Belos::TsqrMatOrthoManager< Scalar, MV, OP >::operator_type

Operator type with which this class was specialized.

Definition at line 387 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

Definition at line 389 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

typedef Teuchos::RCP<mat_type> Belos::TsqrMatOrthoManager< Scalar, MV, OP >::mat_ptr

Definition at line 390 of file BelosTsqrOrthoManager.hpp.

Constructor & Destructor Documentation

template<class Scalar, class MV, class OP>

Belos::TsqrMatOrthoManager< Scalar, MV, OP >::TsqrMatOrthoManager	(	const Teuchos::RCP< Teuchos::ParameterList > &	params,
		const std::string &	label = `"Belos"`,
		Teuchos::RCP< const OP >	Op = `Teuchos::null`
	)

inline

Constructor (that sets user-specified parameters).

Parameters

label	[in] Label for timers. This only matters if the compile-time option for enabling timers is set.
params	[in/out] Configuration parameters, both for this orthogonalization manager, and for TSQR itself (as the "TSQR implementation" sublist). This can be null, in which case default parameters will be set for now; you can always call setParameterList() later to change these.
Op	[in] Inner product with respect to which to orthogonalize vectors. If Teuchos::null, use the Euclidean inner product.

Call getValidParameters() for default parameters and their documentation, including TSQR implementation parameters. Call getFastParameters() to get documented parameters for faster computation, possibly at the expense of accuracy and robustness.

Definition at line 436 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

Belos::TsqrMatOrthoManager< Scalar, MV, OP >::TsqrMatOrthoManager	(	const std::string &	label = `"Belos"`,
		Teuchos::RCP< const OP >	Op = `Teuchos::null`
	)

inline

Constructor (that sets default parameters).

Parameters

Op	[in] Inner product with respect to which to orthogonalize vectors. If Teuchos::null, use the Euclidean inner product.
label	[in] Label for timers. This only matters if the compile-time option for enabling timers is set.

Definition at line 452 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

virtual Belos::TsqrMatOrthoManager< Scalar, MV, OP >::~TsqrMatOrthoManager ( )

inlinevirtual

Destructor (declared virtual for memory safety of derived classes).

Definition at line 460 of file BelosTsqrOrthoManager.hpp.

Member Function Documentation

template<class Scalar, class MV, class OP>

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

inlinevirtual

Get default parameters for TsqrMatOrthoManager.

Get a (pointer to a) default list of parameters for configuring a TsqrMatOrthoManager instance.

Note: TSQR implementation configuration options are stored under "TSQR implementation" as a sublist.

Reimplemented from Teuchos::ParameterListAcceptor.

Definition at line 469 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inline

Get "fast" parameters for TsqrMatOrthoManager.

Get a (pointer to a) list of parameters for configuring a TsqrMatOrthoManager instance for maximum speed, at the cost of accuracy (no block reorthogonalization) and robustness to rank deficiency (no randomization of the null space basis).

Note: TSQR implementation configuration options are stored under "TSQR implementation" as a sublist.

Definition at line 482 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

void Belos::TsqrMatOrthoManager< Scalar, MV, OP >::setParameterList ( const Teuchos::RCP< Teuchos::ParameterList > & params )

inlinevirtual

Implements Teuchos::ParameterListAcceptor.

Definition at line 486 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inlinevirtual

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

Implements Belos::OrthoManager< ScalarType, MV >.

Definition at line 490 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

void Belos::TsqrMatOrthoManager< Scalar, MV, OP >::setOp ( Teuchos::RCP< const OP > Op )

inline

Definition at line 493 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

Teuchos::RCP<const OP> Belos::TsqrMatOrthoManager< Scalar, MV, OP >::getOp ( ) const

inline

Definition at line 508 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inline

Definition at line 515 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inline

Definition at line 533 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

int Belos::TsqrMatOrthoManager< Scalar, MV, OP >::normalize	(	MV &	X,
		Teuchos::RCP< MV >	MX,
		mat_ptr	B
	)		const

inline

Definition at line 541 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inline

Definition at line 556 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

virtual int Belos::TsqrMatOrthoManager< Scalar, MV, OP >::projectAndNormalizeWithMxImpl	(	MV &	X,
		Teuchos::RCP< MV >	MX,
		Teuchos::Array< mat_ptr >	C,
		mat_ptr	B,
		Teuchos::ArrayView< Teuchos::RCP< const MV > >	Q
	)		const

inlineprotectedvirtual

Definition at line 568 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

int Belos::TsqrMatOrthoManager< Scalar, MV, OP >::normalizeOutOfPlace	(	MV &	X,
		MV &	Q,
		mat_ptr	B
	)		const

inlinevirtual

Normalize X into Q*B.

Parameters

X	[in/out] On input: Multivector to normalize. On output: Possibly overwritten with invalid values.
Q	[out] On output: Normalized multivector.
B	[out] On output: Normalization coefficients.

Returns: Rank of the input multivector X.

Implements Belos::OutOfPlaceNormalizerMixin< Scalar, MV >.

Definition at line 589 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

int Belos::TsqrMatOrthoManager< Scalar, MV, OP >::projectAndNormalizeOutOfPlace	(	MV &	X_in,
		MV &	X_out,
		Teuchos::Array< mat_ptr >	C,
		mat_ptr	B,
		Teuchos::ArrayView< Teuchos::RCP< const MV > >	Q
	)		const

inlinevirtual

Project and normalize X_in into X_out.

Project X_in against Q, storing projection coefficients in C, and normalize X_in into X_out, storing normalization coefficients in B. On output, X_out has the resulting orthogonal vectors. X_in may be overwritten with invalid values.

Parameters

X_in	[in/out] On input: The vectors to project against Q and normalize. On output: possibly overwritten with invalid values.
X_out	[out] The normalized input vectors after projection against Q.
C	[out] Projection coefficients
B	[out] Normalization coefficients
Q	[in] The orthogonal basis against which to project

Returns: Rank of X_in after projection

Implements Belos::OutOfPlaceNormalizerMixin< Scalar, MV >.

Definition at line 603 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

magnitude_type Belos::TsqrMatOrthoManager< Scalar, MV, OP >::orthonormError	(	const MV &	X,
		Teuchos::RCP< const MV >	MX
	)		const

inlinevirtual

This method computes the error in orthonormality of a multivector. The method has the option of exploiting a caller-provided MX.

Implements Belos::MatOrthoManager< Scalar, MV, OP >.

Definition at line 623 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inlinevirtual

This method computes the error in orthonormality of a multivector.

Reimplemented from Belos::MatOrthoManager< Scalar, MV, OP >.

Definition at line 633 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inlinevirtual

This method computes the error in orthogonality of two multivectors. This method.

Reimplemented from Belos::MatOrthoManager< Scalar, MV, OP >.

Definition at line 637 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

magnitude_type Belos::TsqrMatOrthoManager< Scalar, MV, OP >::orthogError	(	const MV &	X1,
		Teuchos::RCP< const MV >	MX1,
		const MV &	X2
	)		const

inlinevirtual

This method computes the error in orthogonality of two multivectors. The method has the option of exploiting a caller-provided MX.

Implements Belos::MatOrthoManager< Scalar, MV, OP >.

Definition at line 642 of file BelosTsqrOrthoManager.hpp.

template<class Scalar, class MV, class OP>

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

inlinevirtual

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

Implements Belos::OrthoManager< ScalarType, MV >.

Definition at line 656 of file BelosTsqrOrthoManager.hpp.

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

BelosTsqrOrthoManager.hpp

Public Types

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

template<class Scalar, class MV, class OP> class Belos::TsqrMatOrthoManager< Scalar, MV, OP >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

template<class Scalar, class MV, class OP>
class Belos::TsqrMatOrthoManager< Scalar, MV, OP >