Stokhos::InterlacedOperator Class Reference

An Epetra operator representing the block stochastic Galerkin operator generated by fully assembling the matrix. The ordering of this operator is interlaced. That means that all stochastic degrees of freedom associated with a deterministic degree of freedom are interlaced. The result is a large sparse matrix that is composed of small (relatively) dense blocks. More...

#include <Stokhos_InterlacedOperator.hpp>

Inheritance diagram for Stokhos::InterlacedOperator:

Collaboration diagram for Stokhos::InterlacedOperator:

Public Member Functions
	InterlacedOperator (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_CrsGraph > &base_graph, const Teuchos::RCP< Teuchos::ParameterList > &params)
	Constructor.
virtual	~InterlacedOperator ()
	Destructor.
Public Member Functions inherited from Stokhos::SGOperator
	SGOperator ()
	Constructor.
virtual	~SGOperator ()
	Destructor.

Stokhos::SGOperator methods
typedef Stokhos::Sparse3Tensor< int, double >	Cijk_type
	Short-hand for Cijk.
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 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	only_use_linear
	Flag indicating whether to only use linear terms.
int	determOffset_
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.
void	SumIntoGlobalBlock_Deterministic (double alpha, const Epetra_RowMatrix &determBlock, int Row, int Col)
	Sum into global matrix.

Detailed Description

An Epetra operator representing the block stochastic Galerkin operator generated by fully assembling the matrix. The ordering of this operator is interlaced. That means that all stochastic degrees of freedom associated with a deterministic degree of freedom are interlaced. The result is a large sparse matrix that is composed of small (relatively) dense blocks.

Constructor & Destructor Documentation

InterlacedOperator()

Stokhos::InterlacedOperator::InterlacedOperator	(	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_CrsGraph > &	base_graph,
		const Teuchos::RCP< Teuchos::ParameterList > &	params )

Constructor.

References block_ops, Cijk, epetraCijk, include_mean, only_use_linear, scale_op, sg_basis, and sg_comm.

Member Function Documentation

getSGPolynomial() [1/2]

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

virtual

Get SG polynomial.

Implements Stokhos::SGOperator.

References block_ops.

getSGPolynomial() [2/2]

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

virtual

Get SG polynomial.

Implements Stokhos::SGOperator.

References block_ops.

setupOperator()

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

virtual

Setup operator.

Implements Stokhos::SGOperator.

References block_ops, Cijk, epetraCijk, include_mean, only_use_linear, scale_op, sg_basis, and SumIntoGlobalBlock_Deterministic().

SumIntoGlobalBlock_Deterministic()

void Stokhos::InterlacedOperator::SumIntoGlobalBlock_Deterministic	(	double	alpha,
		const Epetra_RowMatrix &	determBlock,
		int	Row,
		int	Col )

Sum into global matrix.

Referenced by setupOperator().

Member Data Documentation

block_ops

Teuchos::RCP<Stokhos::EpetraOperatorOrthogPoly > Stokhos::InterlacedOperator::block_ops

protected

Stores operators.

Referenced by getSGPolynomial(), getSGPolynomial(), InterlacedOperator(), and setupOperator().

Cijk

Teuchos::RCP<const Cijk_type> Stokhos::InterlacedOperator::Cijk

protected

Stores triple product tensor.

Referenced by InterlacedOperator(), and setupOperator().

epetraCijk

Teuchos::RCP<const Stokhos::EpetraSparse3Tensor> Stokhos::InterlacedOperator::epetraCijk

protected

Stores Epetra Cijk tensor.

Referenced by InterlacedOperator(), and setupOperator().

include_mean

bool Stokhos::InterlacedOperator::include_mean

protected

Flag indicating whether to include mean term.

Referenced by InterlacedOperator(), and setupOperator().

only_use_linear

bool Stokhos::InterlacedOperator::only_use_linear

protected

Flag indicating whether to only use linear terms.

Referenced by InterlacedOperator(), and setupOperator().

scale_op

bool Stokhos::InterlacedOperator::scale_op

protected

Flag indicating whether operator be scaled with <\psi_i^2>.

Referenced by InterlacedOperator(), and setupOperator().

sg_basis

Teuchos::RCP<const Stokhos::OrthogPolyBasis<int,double> > Stokhos::InterlacedOperator::sg_basis

protected

Stochastic Galerking basis.

Referenced by InterlacedOperator(), and setupOperator().

sg_comm

Teuchos::RCP<const EpetraExt::MultiComm> Stokhos::InterlacedOperator::sg_comm

protected

Stores SG parallel communicator.

Referenced by InterlacedOperator().

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

• Stokhos_InterlacedOperator.hpp
• Stokhos_InterlacedOperator.cpp