The Eigensolver is a templated virtual base class that defines the basic interface that any eigensolver will support. More...

#include <AnasaziEigensolverDecl.hpp>

Inheritance diagram for Anasazi::Eigensolver< ScalarType, MV, OP >:

Public Member Functions
Constructors/Destructor
	Eigensolver ()
	Default Constructor. More...

	Eigensolver (const Teuchos::RCP< Eigenproblem< ScalarType, MV, OP > > &problem, const Teuchos::RCP< SortManager< ScalarType > > &sorter, const Teuchos::RCP< OutputManager< ScalarType > > &printer, const Teuchos::RCP< StatusTest< ScalarType, MV, OP > > &tester, const Teuchos::RCP< OrthoManager< ScalarType, MV > > &ortho, Teuchos::ParameterList &params)
	Basic Constructor. More...

virtual	~Eigensolver ()
	Destructor. More...

Solver methods
virtual void	iterate ()=0
	This method performs eigensolvers iterations until the status test indicates the need to stop or an error occurs (in which case, an exception is thrown). More...

virtual void	initialize ()=0
	Initialize the solver with the initial vectors from the eigenproblem or random data. More...

Status methods
virtual int	getNumIters () const =0
	Get the current iteration count. More...

virtual void	resetNumIters ()=0
	Reset the iteration count. More...

virtual Teuchos::RCP< const MV >	getRitzVectors ()=0
	Get the Ritz vectors from the previous iteration. These are indexed using getRitzIndex(). More...

virtual std::vector< Value < ScalarType > >	getRitzValues ()=0
	Get the Ritz values from the previous iteration. More...

virtual std::vector< int >	getRitzIndex ()=0
	Get the index used for indexing the compressed storage used for Ritz vectors for real, non-Hermitian problems. More...

virtual std::vector< typename Teuchos::ScalarTraits < ScalarType >::magnitudeType >	getResNorms ()=0
	Get the current residual norms. More...

virtual std::vector< typename Teuchos::ScalarTraits < ScalarType >::magnitudeType >	getRes2Norms ()=0

virtual std::vector< typename Teuchos::ScalarTraits < ScalarType >::magnitudeType >	getRitzRes2Norms ()=0

virtual int	getCurSubspaceDim () const =0
	Get the dimension of the search subspace used to generate the current eigenvectors and eigenvalues. More...

virtual int	getMaxSubspaceDim () const =0
	Get the maximum dimension allocated for the search subspace. More...

Accessor methods
virtual void	setStatusTest (Teuchos::RCP< StatusTest< ScalarType, MV, OP > > test)=0
	Set a new StatusTest for the solver. More...

virtual Teuchos::RCP < StatusTest< ScalarType, MV, OP > >	getStatusTest () const =0
	Get the current StatusTest used by the solver. More...

virtual const Eigenproblem < ScalarType, MV, OP > &	getProblem () const =0
	Get a constant reference to the eigenvalue problem. More...

virtual int	getBlockSize () const =0
	Get the blocksize to be used by the iterative solver in solving this eigenproblem. More...

virtual void	setBlockSize (int blockSize)=0
	Set the blocksize to be used by the iterative solver in solving this eigenproblem. More...

virtual void	setAuxVecs (const Teuchos::Array< Teuchos::RCP< const MV > > &auxvecs)=0
	Set the auxiliary vectors for the solver. More...

virtual Teuchos::Array < Teuchos::RCP< const MV > >	getAuxVecs () const =0
	Get the auxiliary vectors for the solver. More...

virtual bool	isInitialized () const =0
	States whether the solver has been initialized or not. More...

Output methods
virtual void	currentStatus (std::ostream &os)=0
	This method requests that the solver print out its current status to screen. More...

Detailed Description

template<class ScalarType, class MV, class OP>
class Anasazi::Eigensolver< ScalarType, MV, OP >

The Eigensolver is a templated virtual base class that defines the basic interface that any eigensolver will support.

This interface is mainly concerned with providing a set of eigensolver status method that can be requested from any eigensolver by an StatusTest object.

Examples:: LOBPCGCustomStatusTest.cpp.

Definition at line 35 of file AnasaziEigensolver.hpp.

Constructor & Destructor Documentation

template<class ScalarType, class MV, class OP>

Anasazi::Eigensolver< ScalarType, MV, OP >::Eigensolver ( )

inline

Default Constructor.

Definition at line 43 of file AnasaziEigensolver.hpp.

template<class ScalarType, class MV, class OP>

Anasazi::Eigensolver< ScalarType, MV, OP >::Eigensolver	(	const Teuchos::RCP< Eigenproblem< ScalarType, MV, OP > > &	problem,
		const Teuchos::RCP< SortManager< ScalarType > > &	sorter,
		const Teuchos::RCP< OutputManager< ScalarType > > &	printer,
		const Teuchos::RCP< StatusTest< ScalarType, MV, OP > > &	tester,
		const Teuchos::RCP< OrthoManager< ScalarType, MV > > &	ortho,
		Teuchos::ParameterList &	params
	)

Basic Constructor.

This constructor, implemented by all Anasazi eigensolvers, takes an Anasazi::Eigenproblem, Anasazi::SortManager, Anasazi::OutputManager, and Teuchos::ParameterList as input. These four arguments are sufficient enough for constructing any Anasazi::Eigensolver object.

template<class ScalarType, class MV, class OP>

virtual Anasazi::Eigensolver< ScalarType, MV, OP >::~Eigensolver ( )

inlinevirtual

Destructor.

Definition at line 58 of file AnasaziEigensolver.hpp.

Member Function Documentation

template<class ScalarType, class MV, class OP>

virtual void Anasazi::Eigensolver< ScalarType, MV, OP >::iterate ( )

pure virtual

This method performs eigensolvers iterations until the status test indicates the need to stop or an error occurs (in which case, an exception is thrown).

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, Anasazi::GeneralizedDavidson< ScalarType, MV, OP >, Anasazi::IRTR< ScalarType, MV, OP >, and Anasazi::SIRTR< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual void Anasazi::Eigensolver< ScalarType, MV, OP >::initialize ( )

pure virtual

Initialize the solver with the initial vectors from the eigenproblem or random data.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual int Anasazi::Eigensolver< ScalarType, MV, OP >::getNumIters ( ) const

pure virtual

Get the current iteration count.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual void Anasazi::Eigensolver< ScalarType, MV, OP >::resetNumIters ( )

pure virtual

Reset the iteration count.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual Teuchos::RCP<const MV> Anasazi::Eigensolver< ScalarType, MV, OP >::getRitzVectors ( )

pure virtual

Get the Ritz vectors from the previous iteration. These are indexed using getRitzIndex().

For a description of the indexing scheme, see getRitzIndex().

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual std::vector<Value<ScalarType> > Anasazi::Eigensolver< ScalarType, MV, OP >::getRitzValues ( )

pure virtual

Get the Ritz values from the previous iteration.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual std::vector<int> Anasazi::Eigensolver< ScalarType, MV, OP >::getRitzIndex ( )

pure virtual

Get the index used for indexing the compressed storage used for Ritz vectors for real, non-Hermitian problems.

index has length numVecs, where each entry is 0, +1, or -1. These have the following interpretation:

index[i] == 0: signifies that the corresponding eigenvector is stored as the i column of Evecs. This will usually be the case when ScalarType is complex, an eigenproblem is Hermitian, or a real, non-Hermitian eigenproblem has a real eigenvector.
index[i] == +1: signifies that the corresponding eigenvector is stored in two vectors: the real part in the i column of Evecs and the positive imaginary part in the i+1 column of Evecs.
index[i] == -1: signifies that the corresponding eigenvector is stored in two vectors: the real part in the i-1 column of Evecs and the negative imaginary part in the i column of Evecs

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> Anasazi::Eigensolver< ScalarType, MV, OP >::getResNorms ( )

pure virtual

Get the current residual norms.

Returns: A vector of length blockSize containing the norms of the residuals, according to the orthogonalization manager norm() method.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> Anasazi::Eigensolver< ScalarType, MV, OP >::getRes2Norms ( )

pure virtual

Get the current residual 2-norms

Returns: A vector of length blockSize containing the 2-norms of the residuals.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> Anasazi::Eigensolver< ScalarType, MV, OP >::getRitzRes2Norms ( )

pure virtual

Get the 2-norms of the Ritz residuals.

Returns: A vector of length blockSize containing the 2-norms of the Ritz residuals.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual int Anasazi::Eigensolver< ScalarType, MV, OP >::getCurSubspaceDim ( ) const

pure virtual

Get the dimension of the search subspace used to generate the current eigenvectors and eigenvalues.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual int Anasazi::Eigensolver< ScalarType, MV, OP >::getMaxSubspaceDim ( ) const

pure virtual

Get the maximum dimension allocated for the search subspace.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual void Anasazi::Eigensolver< ScalarType, MV, OP >::setStatusTest ( Teuchos::RCP< StatusTest< ScalarType, MV, OP > > test )

pure virtual

Set a new StatusTest for the solver.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual Teuchos::RCP<StatusTest<ScalarType,MV,OP> > Anasazi::Eigensolver< ScalarType, MV, OP >::getStatusTest ( ) const

pure virtual

Get the current StatusTest used by the solver.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual const Eigenproblem<ScalarType,MV,OP>& Anasazi::Eigensolver< ScalarType, MV, OP >::getProblem ( ) const

pure virtual

Get a constant reference to the eigenvalue problem.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual int Anasazi::Eigensolver< ScalarType, MV, OP >::getBlockSize ( ) const

pure virtual

Get the blocksize to be used by the iterative solver in solving this eigenproblem.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual void Anasazi::Eigensolver< ScalarType, MV, OP >::setBlockSize ( int blockSize )

pure virtual

Set the blocksize to be used by the iterative solver in solving this eigenproblem.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual void Anasazi::Eigensolver< ScalarType, MV, OP >::setAuxVecs ( const Teuchos::Array< Teuchos::RCP< const MV > > & auxvecs )

pure virtual

Set the auxiliary vectors for the solver.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual Teuchos::Array<Teuchos::RCP<const MV> > Anasazi::Eigensolver< ScalarType, MV, OP >::getAuxVecs ( ) const

pure virtual

Get the auxiliary vectors for the solver.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, and Anasazi::GeneralizedDavidson< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual bool Anasazi::Eigensolver< ScalarType, MV, OP >::isInitialized ( ) const

pure virtual

States whether the solver has been initialized or not.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::GeneralizedDavidson< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, and Anasazi::BlockKrylovSchur< ScalarType, MV, OP >.

template<class ScalarType, class MV, class OP>

virtual void Anasazi::Eigensolver< ScalarType, MV, OP >::currentStatus ( std::ostream & os )

pure virtual

This method requests that the solver print out its current status to screen.

Implemented in Anasazi::LOBPCG< ScalarType, MV, OP >, Anasazi::Experimental::TraceMinBase< ScalarType, MV, OP >, Anasazi::RTRBase< ScalarType, MV, OP >, Anasazi::BlockDavidson< ScalarType, MV, OP >, Anasazi::BlockKrylovSchur< ScalarType, MV, OP >, Anasazi::GeneralizedDavidson< ScalarType, MV, OP >, Anasazi::IRTR< ScalarType, MV, OP >, and Anasazi::SIRTR< ScalarType, MV, OP >.

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

AnasaziEigensolver.hpp

Public Member Functions

Detailed Description

template<class ScalarType, class MV, class OP> class Anasazi::Eigensolver< ScalarType, MV, OP >

Constructor & Destructor Documentation

Member Function Documentation

template<class ScalarType, class MV, class OP>
class Anasazi::Eigensolver< ScalarType, MV, OP >