Stokhos::KLMatrixFreeOperator Class Reference

An Epetra operator representing the block stochastic Galerkin operator. More...

#include <Stokhos_KLMatrixFreeOperator.hpp>

Inheritance diagram for Stokhos::KLMatrixFreeOperator:

Collaboration diagram for Stokhos::KLMatrixFreeOperator:

Public Member Functions
	KLMatrixFreeOperator (const Teuchos::RCP< const EpetraExt::MultiComm > &sg_comm, const Teuchos::RCP< const Stokhos::OrthogPolyBasis< int, double > > &sg_basis, const Teuchos::RCP< const Stokhos::EpetraSparse3Tensor > &epetraCijk, const Teuchos::RCP< const Epetra_Map > &domain_base_map, const Teuchos::RCP< const Epetra_Map > &range_base_map, const Teuchos::RCP< const Epetra_Map > &domain_sg_map, const Teuchos::RCP< const Epetra_Map > &range_sg_map, const Teuchos::RCP< Teuchos::ParameterList > &params)
	Constructor.
virtual	~KLMatrixFreeOperator ()
	Destructor.
Stokhos::SGOperator methods
virtual void	setupOperator (const Teuchos::RCP< Stokhos::EpetraOperatorOrthogPoly > &poly)
	Setup operator.
virtual Teuchos::RCP< Stokhos::EpetraOperatorOrthogPoly >	getSGPolynomial ()
	Get SG polynomial.
virtual Teuchos::RCP< const Stokhos::EpetraOperatorOrthogPoly >	getSGPolynomial () const
	Get SG polynomial.
Public Member Functions inherited from Stokhos::SGOperator
	SGOperator ()
	Constructor.
virtual	~SGOperator ()
	Destructor.

Epetra_Operator methods
typedef Stokhos::Sparse3Tensor< int, double >	Cijk_type
	Short-hand for Cijk.
std::string	label
	Label for operator.
Teuchos::RCP< const EpetraExt::MultiComm >	sg_comm
	Stores SG parallel communicator.
Teuchos::RCP< const Stokhos::OrthogPolyBasis< int, double > >	sg_basis
	Stochastic Galerking basis.
Teuchos::RCP< const Stokhos::EpetraSparse3Tensor >	epetraCijk
	Stores Epetra Cijk tensor.
Teuchos::RCP< const Epetra_Map >	domain_base_map
	Stores domain base map.
Teuchos::RCP< const Epetra_Map >	range_base_map
	Stores range base map.
Teuchos::RCP< const Epetra_Map >	domain_sg_map
	Stores domain SG map.
Teuchos::RCP< const Epetra_Map >	range_sg_map
	Stores range SG map.
bool	is_stoch_parallel
	Whether we have parallelism over stochastic blocks.
Teuchos::RCP< Epetra_Map >	global_col_map
	Stores operator column SG map.
Teuchos::RCP< Epetra_Map >	global_col_map_trans
	Stores operator column SG map for transpose.
Teuchos::RCP< const Epetra_BlockMap >	stoch_col_map
	Stores stochastic part of column map.
Teuchos::RCP< Epetra_Import >	col_importer
	Importer from domain map to column map.
Teuchos::RCP< Epetra_Import >	col_importer_trans
	Importer from range map to column map.
Teuchos::RCP< const Cijk_type >	Cijk
	Stores triple product tensor.
Teuchos::RCP< Stokhos::EpetraOperatorOrthogPoly >	block_ops
	Stores operators.
bool	scale_op
	Flag indicating whether operator be scaled with <\psi_i^2>.
bool	include_mean
	Flag indicating whether to include mean term.
bool	useTranspose
	Flag indicating whether transpose was selected.
int	expansion_size
	Number of terms in expansion.
int	num_blocks
	Number of Jacobian blocks (not necessarily equal to expansion_size).
int	max_num_mat_vec
	Maximum number of matvecs in Apply.
Teuchos::RCP< Epetra_MultiVector >	input_col
	Temporary to store result of importing input into column map.
Teuchos::RCP< Epetra_MultiVector >	input_col_trans
	Temporary to store result of importing input into column map (transpose).
Teuchos::Array< Teuchos::RCP< const Epetra_MultiVector > >	input_block
	MultiVectors for each block for Apply() input.
Teuchos::Array< Teuchos::RCP< Epetra_MultiVector > >	result_block
	MultiVectors for each block for Apply() result.
Teuchos::RCP< Epetra_MultiVector >	tmp
	Temporary multivector used in Apply().
Teuchos::RCP< Epetra_MultiVector >	tmp_trans
	Temporary multivector used in Apply() for transpose.
Cijk_type::k_iterator	k_begin
	Starting k iterator.
Cijk_type::k_iterator	k_end
	Ending k iterator.
virtual int	SetUseTranspose (bool UseTranspose)
	Set to true if the transpose of the operator is requested.
virtual int	Apply (const Epetra_MultiVector &Input, Epetra_MultiVector &Result) const
	Returns the result of a Epetra_Operator applied to a Epetra_MultiVector Input in Result as described above.
virtual int	ApplyInverse (const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
	Returns the result of the inverse of the operator applied to a Epetra_MultiVector Input in Result as described above.
virtual double	NormInf () const
	Returns an approximate infinity norm of the operator matrix.
virtual const char *	Label () const
	Returns a character std::string describing the operator.
virtual bool	UseTranspose () const
	Returns the current UseTranspose setting.
virtual bool	HasNormInf () const
	Returns true if the this object can provide an approximate Inf-norm, false otherwise.
virtual const Epetra_Comm &	Comm () const
	Returns a reference to the Epetra_Comm communicator associated with this operator.
virtual const Epetra_Map &	OperatorDomainMap () const
	Returns the Epetra_Map object associated with the domain of this matrix operator.
virtual const Epetra_Map &	OperatorRangeMap () const
	Returns the Epetra_Map object associated with the range of this matrix operator.

Detailed Description

An Epetra operator representing the block stochastic Galerkin operator.

Member Function Documentation

getSGPolynomial() [1/2]

Teuchos::RCP< Stokhos::EpetraOperatorOrthogPoly > Stokhos::KLMatrixFreeOperator::getSGPolynomial ( )

virtual

Get SG polynomial.

Implements Stokhos::SGOperator.

References block_ops.

getSGPolynomial() [2/2]

Teuchos::RCP< const Stokhos::EpetraOperatorOrthogPoly > Stokhos::KLMatrixFreeOperator::getSGPolynomial ( ) const

virtual

Get SG polynomial.

Implements Stokhos::SGOperator.

References block_ops.

setupOperator()

void Stokhos::KLMatrixFreeOperator::setupOperator ( const Teuchos::RCP< Stokhos::EpetraOperatorOrthogPoly > & poly )

virtual

Setup operator.

Implements Stokhos::SGOperator.

References block_ops, num_blocks, and sg_basis.

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

• Stokhos_KLMatrixFreeOperator.hpp
• Stokhos_KLMatrixFreeOperator.cpp