A pure virtual interface for solving the transpose of a linear system. More...

#include <LOCA_Epetra_TransposeLinearSystem_AbstractStrategy.H>

Inheritance diagram for LOCA::Epetra::TransposeLinearSystem::AbstractStrategy:

Public Member Functions
	AbstractStrategy ()
	Constructor.
virtual	~AbstractStrategy ()
	Destructor.
virtual bool	applyJacobianTransposeInverse (Teuchos::ParameterList &params, const NOX::Epetra::Vector &input, NOX::Epetra::Vector &result)=0
	Applies the inverse of the Jacobian matrix transpose to the given input vector and puts the answer in result.
virtual bool	createJacobianTranspose ()=0
	Evaluates the Jacobian-transpose based on the solution vector x.
virtual bool	createTransposePreconditioner (const NOX::Epetra::Vector &x, Teuchos::ParameterList &p)=0
	Explicitly constructs a preconditioner based on the solution vector x and the parameter list p.
virtual Teuchos::RCP < Epetra_Operator >	getJacobianTransposeOperator ()=0
	Get Jacobian-transpose operator.
virtual Teuchos::RCP < Epetra_Operator >	getTransposePreconditioner ()=0
	Get transpose-preconditioner.
virtual void	setJacobianTransposeOperator (const Teuchos::RCP< Epetra_Operator > &new_jac_trans)=0
	Set Jacobian-transpose operator.
virtual void	setTransposePreconditioner (const Teuchos::RCP< Epetra_Operator > &new_prec_trans)=0
	Set transpose-preconditioner.

Detailed Description

A pure virtual interface for solving the transpose of a linear system.

Member Function Documentation

virtual bool LOCA::Epetra::TransposeLinearSystem::AbstractStrategy::applyJacobianTransposeInverse	(	Teuchos::ParameterList &	params,
		const NOX::Epetra::Vector &	input,
		NOX::Epetra::Vector &	result
	)		`[pure virtual]`

Applies the inverse of the Jacobian matrix transpose to the given input vector and puts the answer in result.

Computes

$v = J^{-T} u,$

where $J$ is the Jacobian, $u$ is the input vector, and $v$ is the result vector.

The parameter list contains the linear solver options.

virtual bool LOCA::Epetra::TransposeLinearSystem::AbstractStrategy::createJacobianTranspose ( ) [pure virtual]

Evaluates the Jacobian-transpose based on the solution vector x.

Note: For flexibility, this method does not compute the original Jacobian matrix. It uses whatever is currently stored in the linear system.

virtual bool LOCA::Epetra::TransposeLinearSystem::AbstractStrategy::createTransposePreconditioner	(	const NOX::Epetra::Vector &	x,
		Teuchos::ParameterList &	p
	)		`[pure virtual]`

Explicitly constructs a preconditioner based on the solution vector x and the parameter list p.

Note: x is only needed for user-supplied preconditioners. When using a built-in preconditioner (e.g., Ifpack), x will note be used.

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