Basic adapter class for Anasazi::MultiVec that uses Epetra_MultiVector. More...

#include <AnasaziEpetraAdapter.hpp>

Inheritance diagram for Anasazi::EpetraMultiVec:

Public Member Functions
ptrdiff_t	GetGlobalLength () const
	The number of rows in the multivector. More...

Constructors/Destructors
	EpetraMultiVec (const Epetra_BlockMap &Map_in, const int numvecs)
	Basic EpetraMultiVec constructor. More...

	EpetraMultiVec (const Epetra_MultiVector &P_vec)
	Copy constructor. More...

	EpetraMultiVec (const Epetra_BlockMap &Map_in, double *array, const int numvecs, const int stride=0)
	Create multi-vector with values from two dimensional array. More...

	EpetraMultiVec (Epetra_DataAccess CV, const Epetra_MultiVector &P_vec, const std::vector< int > &index)
	Create multi-vector from list of vectors in an existing EpetraMultiVec. More...

virtual	~EpetraMultiVec ()
	Destructor. More...

Creation methods
MultiVec< double > *	Clone (const int numvecs) const
	Creates a new empty EpetraMultiVec containing `numvecs` columns. More...

MultiVec< double > *	CloneCopy () const
	Creates a new EpetraMultiVec and copies contents of `*this` into the new vector (deep copy). More...

MultiVec< double > *	CloneCopy (const std::vector< int > &index) const
	Creates a new EpetraMultiVec and copies the selected contents of `*this` into the new vector (deep copy). More...

MultiVec< double > *	CloneViewNonConst (const std::vector< int > &index)
	Creates a new EpetraMultiVec that shares the selected contents of `*this`. More...

const MultiVec< double > *	CloneView (const std::vector< int > &index) const
	Creates a new EpetraMultiVec that shares the selected contents of `*this`. More...

Attribute methods
Obtain the vector length of *this.
int	GetNumberVecs () const
	The number of vectors (i.e., columns) in the multivector. More...

Update methods
void	MvTimesMatAddMv (double alpha, const MultiVec< double > &A, const Teuchos::SerialDenseMatrix< int, double > &B, double beta)
	Update `this` with $\alpha AB + \beta (this)$ . More...

void	MvAddMv (double alpha, const MultiVec< double > &A, double beta, const MultiVec< double > &B)
	Replace `*this` with $\alpha A + \beta B$ . More...

void	MvTransMv (double alpha, const MultiVec< double > &A, Teuchos::SerialDenseMatrix< int, double > &B) const
	Compute a dense matrix `B` through the matrix-matrix multiply $\alpha A^T(*this)$ . More...

void	MvDot (const MultiVec< double > &A, std::vector< double > &b) const
	Compute a vector `b` where the components are the individual dot-products, i.e. where `A`[i] is the i-th column of `A`. More...

void	MvScale (double alpha)
	Scale each element of the vectors in `*this` with `alpha`. More...

void	MvScale (const std::vector< double > &alpha)
	Scale each element of the `i-th` vector in `*this` with `alpha`[i]. More...

Norm method
void	MvNorm (std::vector< double > &normvec) const
	Compute the 2-norm of each individual vector of `this`. Upon return, `normvec`[i] holds the 2-norm of the `i-th` vector of `this`. More...

Initialization methods
void	SetBlock (const MultiVec< double > &A, const std::vector< int > &index)
	Copy the vectors in `A` to a set of vectors in `*this`. More...

void	MvRandom ()
	Fill the vectors in `*this` with random numbers. More...

void	MvInit (double alpha)
	Replace each element of the vectors in `*this` with `alpha`. More...

Accessor methods (inherited from EpetraMultiVecAccessor)
Epetra_MultiVector *	GetEpetraMultiVec ()
	Return the pointer to the Epetra_MultiVector object. More...

const Epetra_MultiVector *	GetEpetraMultiVec () const
	Return the pointer to the Epetra_MultiVector object. More...

Print method
void	MvPrint (std::ostream &os) const
	Print `*this` EpetraMultiVec. More...

Public Member Functions inherited from Anasazi::MultiVec< double >
	MultiVec ()
	Default constructor. More...

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

virtual void	MvNorm (std::vector< typename Teuchos::ScalarTraits< double >::magnitudeType > &normvec) const =0
	Compute the 2-norm of each vector in `*this`. More...

Public Member Functions inherited from Anasazi::EpetraMultiVecAccessor
virtual	~EpetraMultiVecAccessor ()
	Destructor. More...

Detailed Description

Basic adapter class for Anasazi::MultiVec that uses Epetra_MultiVector.

Note: The Epetra package performs double-precision arithmetic, so the use of Epetra with Anasazi will only provide a double-precision eigensolver.

Examples:: BlockKrylovSchur/BlockKrylovSchurEpetraExSVD.cpp, and MVOPTester/MVOPTesterEx.cpp.

Definition at line 96 of file AnasaziEpetraAdapter.hpp.

Constructor & Destructor Documentation

Anasazi::EpetraMultiVec::EpetraMultiVec	(	const Epetra_BlockMap &	Map_in,
		const int	numvecs
	)

Basic EpetraMultiVec constructor.

Parameters

Map	[in] An Epetra_LocalMap, Epetra_Map or Epetra_BlockMap.
numvecs	[in] Number of vectors in multi-vector.

Returns: Pointer to an EpetraMultiVec

Definition at line 33 of file AnasaziEpetraAdapter.cpp.

Anasazi::EpetraMultiVec::EpetraMultiVec ( const Epetra_MultiVector & P_vec )

Copy constructor.

Definition at line 47 of file AnasaziEpetraAdapter.cpp.

Anasazi::EpetraMultiVec::EpetraMultiVec	(	const Epetra_BlockMap &	Map_in,
		double *	array,
		const int	numvecs,
		const int	stride = `0`
	)

Create multi-vector with values from two dimensional array.

Parameters

Map	[in] An Epetra_LocalMap, Epetra_Map or Epetra_BlockMap
array	[in] Pointer to an array of double precision numbers. The first vector starts at `array`, the second at `array+stride`, and so on. This array is copied.
numvecs	[in] Number of vectors in the multi-vector.
stride	[in] The stride between vectors in memory of `array`.

Returns: Pointer to an EpetraMultiVec

Definition at line 26 of file AnasaziEpetraAdapter.cpp.

Anasazi::EpetraMultiVec::EpetraMultiVec	(	Epetra_DataAccess	CV,
		const Epetra_MultiVector &	P_vec,
		const std::vector< int > &	index
	)

Create multi-vector from list of vectors in an existing EpetraMultiVec.

Parameters

CV	[in] Enumerated type set to Copy or View.
P_vec	[in] An existing fully constructed Epetra_MultiVector.
index	[in] A integer vector containing the indices of the vectors to copy out of `P_vec`.

Returns: Pointer to an EpetraMultiVec

Definition at line 39 of file AnasaziEpetraAdapter.cpp.

virtual Anasazi::EpetraMultiVec::~EpetraMultiVec ( )

inlinevirtual

Destructor.

Definition at line 133 of file AnasaziEpetraAdapter.hpp.

Member Function Documentation

MultiVec< double > * Anasazi::EpetraMultiVec::Clone ( const int numvecs ) const

virtual

Creates a new empty EpetraMultiVec containing numvecs columns.

Returns: Pointer to an EpetraMultiVec

Implements Anasazi::MultiVec< double >.

Definition at line 62 of file AnasaziEpetraAdapter.cpp.

MultiVec< double > * Anasazi::EpetraMultiVec::CloneCopy ( ) const

virtual

Creates a new EpetraMultiVec and copies contents of *this into the new vector (deep copy).

Returns: Pointer to an EpetraMultiVec

Implements Anasazi::MultiVec< double >.

Definition at line 73 of file AnasaziEpetraAdapter.cpp.

MultiVec< double > * Anasazi::EpetraMultiVec::CloneCopy ( const std::vector< int > & index ) const

virtual

Creates a new EpetraMultiVec and copies the selected contents of *this into the new vector (deep copy).

The copied vectors from *this are indicated by the index.size() indices in index.

Returns: Pointer to an EpetraMultiVec

Implements Anasazi::MultiVec< double >.

Definition at line 80 of file AnasaziEpetraAdapter.cpp.

MultiVec< double > * Anasazi::EpetraMultiVec::CloneViewNonConst ( const std::vector< int > & index )

virtual

Creates a new EpetraMultiVec that shares the selected contents of *this.

The index of the numvecs vectors shallow copied from *this are indicated by the indices given in index.

Returns: Pointer to an EpetraMultiVec

Implements Anasazi::MultiVec< double >.

Definition at line 87 of file AnasaziEpetraAdapter.cpp.

const MultiVec< double > * Anasazi::EpetraMultiVec::CloneView ( const std::vector< int > & index ) const

virtual

Creates a new EpetraMultiVec that shares the selected contents of *this.

The index of the numvecs vectors shallow copied from *this are indicated by the indices given in index.

Returns: Pointer to an EpetraMultiVec

Implements Anasazi::MultiVec< double >.

Definition at line 93 of file AnasaziEpetraAdapter.cpp.

ptrdiff_t Anasazi::EpetraMultiVec::GetGlobalLength ( ) const

inlinevirtual

The number of rows in the multivector.

Implements Anasazi::MultiVec< double >.

Definition at line 183 of file AnasaziEpetraAdapter.hpp.

int Anasazi::EpetraMultiVec::GetNumberVecs ( ) const

inlinevirtual

The number of vectors (i.e., columns) in the multivector.

Implements Anasazi::MultiVec< double >.

Definition at line 193 of file AnasaziEpetraAdapter.hpp.

void Anasazi::EpetraMultiVec::MvTimesMatAddMv	(	double	alpha,
		const MultiVec< double > &	A,
		const Teuchos::SerialDenseMatrix< int, double > &	B,
		double	beta
	)