Inheritance diagram for Playa::IfpackICCOperator:

Public Member Functions
	IfpackICCOperator (const EpetraMatrix *A, int fillLevels, int overlapFill, double dropTol, double relaxationValue, double relativeThreshold, double absoluteThreshold)
virtual void	apply (Teuchos::ETransp applyType, const Vector< double > &in, Vector< double > out) const
std::ostream &	describe (std::ostream &out, const Teuchos::EVerbosityLevel verbLevel, const std::string leadingIndent, const std::string indentSpacer) const
std::string	description () const
Diagnostic output
virtual void	print (std::ostream &os) const
Private Attributes
RCP< Ifpack_ICT >	precond_

Detailed Description

This is the operator representation of the inverse upper triangular factor ${\tilde R}^{-1}$ in the incomplete Cholesky factorization of a matrix $A \approx {\tilde R}{\tilde R}^T$ .

Author:: Kimberly Kennedy, with some small modifications by Kevin Long

Definition at line 60 of file PlayaIfpackICCOperator.hpp.

Constructor & Destructor Documentation

Playa::IfpackICCOperator::IfpackICCOperator	(	const EpetraMatrix *	A,
		int	fillLevels,
		int	overlapFill,
		double	dropTol,
		double	relaxationValue,
		double	relativeThreshold,
		double	absoluteThreshold
	)

Construct the operator. During construction, the matrix A will be approximately factored using the options given in the arguments.

Parameters:

A	The matrix to be factored
fillLevels	Specifies the number of on-processor nonzeros allowed in each row of the factorization, given as a ratio of the allowed nnz per row in the factor to nnz per row in A.
overlapFill	Fill allowed for off-processor elements
dropTol	New elements are dropped if \|R_ij\| < dropTol*R_jj.
relaxationValue	Fraction of dropped element mass to be added to diagonal.
relativeThreshold	Fraction of diagonal element to be added to diagonal
absoluteThreshold	Amount to be added to each diagonal element

Definition at line 58 of file PlayaIfpackICCOperator.cpp.

References Playa::EpetraMatrix::crsMatrix(), Sundance::List(), and precond_.

Member Function Documentation

void Playa::IfpackICCOperator::apply	(	Teuchos::ETransp	applyType,
		const Vector< double > &	in,
		Vector< double >	out
	)		const `[virtual]`

Apply the operator.

Implements Playa::LinearOperatorBase< double >.

Definition at line 95 of file PlayaIfpackICCOperator.cpp.

References Playa::EpetraVector::getConcrete(), and precond_.

std::ostream& Playa::IfpackICCOperator::describe	(	std::ostream &	out,
		const Teuchos::EVerbosityLevel	verbLevel,
		const std::string	leadingIndent,
		const std::string	indentSpacer
	)		const `[inline]`