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

#include <Stokhos_MatrixFreeOperator.hpp>

Inheritance diagram for Stokhos::MatrixFreeOperator:

Collaboration diagram for Stokhos::MatrixFreeOperator:

Public Member Functions
	MatrixFreeOperator (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	~MatrixFreeOperator ()
	Destructor.

double	countApplyFlops () const
	Return number of FLOPS for each call to Apply()

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.

Epetra_Operator methods
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 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.

Public Member Functions inherited from Stokhos::SGOperator
	SGOperator ()
	Constructor.

virtual	~SGOperator ()
	Destructor.

Protected Types
typedef Stokhos::Sparse3Tensor < int, double >	Cijk_type
	Short-hand for Cijk.

Protected Attributes
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 <^2>

bool	include_mean
	Flag indicating whether to include mean term.

bool	only_use_linear
	Flag indicating whether to only use linear terms.

bool	useTranspose
	Flag indicating whether transpose was selected.

bool	use_block_apply
	Flag indicating whether to use block Epetra_MultiVector apply.

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.

Detailed Description

An Epetra operator representing the block stochastic Galerkin operator.

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

Stokhos_MatrixFreeOperator.hpp
Stokhos_MatrixFreeOperator.cpp

Public Member Functions

Protected Types

Protected Attributes

Detailed Description