Anasazi::EpetraMultiVec Class Reference

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

#include <AnasaziEpetraAdapter.hpp>

Inheritance diagram for Anasazi::EpetraMultiVec:

[legend]Collaboration diagram for Anasazi::EpetraMultiVec:[legend]List of all members.

Public Member Functions
Constructors/Destructors
	EpetraMultiVec (const Epetra_BlockMap &Map, const int numvecs)
	Basic EpetraMultiVec constructor.
	EpetraMultiVec (const Epetra_MultiVector &P_vec)
	Copy constructor.
	EpetraMultiVec (const Epetra_BlockMap &Map, double *array, const int numvecs, const int stride=0)
	Create multi-vector with values from two dimensional array.
	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.
virtual	~EpetraMultiVec ()
	Destructor.
Creation methods
MultiVec< double > *	Clone (const int numvecs) const
	Creates a new empty EpetraMultiVec containing numvecs columns.
MultiVec< double > *	CloneCopy () const
	Creates a new EpetraMultiVec and copies contents of *this into the new vector (deep copy).
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).
MultiVec< double > *	CloneView (const std::vector< int > &index)
	Creates a new EpetraMultiVec that shares the selected contents of *this.
Attribute methods
int	GetNumberVecs () const
	Obtain the vector length of *this.
int	GetVecLength () const
	Obtain the number of vectors in *this.
Update methods
void	MvTimesMatAddMv (const double alpha, const MultiVec< double > &A, const Teuchos::SerialDenseMatrix< int, double > &B, const double beta)
	Update *this with .
void	MvAddMv (const double alpha, const MultiVec< double > &A, const double beta, const MultiVec< double > &B)
	Replace *this with .
void	MvTransMv (const double alpha, const MultiVec< double > &A, Teuchos::SerialDenseMatrix< int, double > &B) const
	Compute a dense matrix B through the matrix-matrix multiply .
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.
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.
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.
void	MvRandom ()
	Fill the vectors in *this with random numbers.
void	MvInit (const double alpha)
	Replace each element of the vectors in *this with alpha.
Print method.
void	MvPrint (ostream &os) const
	Print *this EpetraMultiVec.

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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.

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Constructor & Destructor Documentation

Anasazi::EpetraMultiVec::EpetraMultiVec (  const Epetra_BlockMap &  Map, 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

Anasazi::EpetraMultiVec::EpetraMultiVec (  const Epetra_BlockMap &  Map, 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

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

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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 >.

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 >.

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 >.

MultiVec< double > * Anasazi::EpetraMultiVec::CloneView (  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 >.

void Anasazi::EpetraMultiVec::SetBlock (  const MultiVec< double > &  A, const std::vector< int > &  index )  [virtual]

Copy the vectors in A to a set of vectors in *this. The numvecs vectors in A are copied to a subset of vectors in *this indicated by the indices given in index. Implements Anasazi::MultiVec< double >.

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

• AnasaziEpetraAdapter.hpp
• AnasaziEpetraAdapter.cpp

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