Strategy for computing $A_00^{-1}$ and $S^{-1}$ in the LU2x2PreconditionerFactory. Uses the diagonal of $A_00$ to build $S$ . More...

#include <Teko_LU2x2DiagonalStrategy.hpp>

Inheritance diagram for Teko::LU2x2DiagonalStrategy:

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Public Member Functions
	LU2x2DiagonalStrategy ()
	default Constructor More...

	LU2x2DiagonalStrategy (const Teuchos::RCP< InverseFactory > &invFA, const Teuchos::RCP< InverseFactory > &invS)
	Constructor to set the inverse factories. More...

virtual	~LU2x2DiagonalStrategy ()
	Destructor (does nothing) More...

virtual const Teko::LinearOp	getHatInvA00 (const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const

virtual const Teko::LinearOp	getTildeInvA00 (const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const

virtual const Teko::LinearOp	getInvS (const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const

virtual void	initializeFromParameterList (const Teuchos::ParameterList &settings, const InverseLibrary &invLib)
	This function builds the internals of the state from a parameter list. More...

Public Member Functions inherited from Teko::LU2x2Strategy
virtual Teuchos::RCP < Teuchos::ParameterList >	getRequestedParameters () const
	Request the additional parameters this preconditioner factory needs. More...

virtual bool	updateRequestedParameters (const Teuchos::ParameterList &)
	Update this object with the fields from a parameter list. More...

void	setRequestHandler (const Teuchos::RCP< RequestHandler > &rh)
	This method sets the request handler for this object. More...

Teuchos::RCP< RequestHandler >	getRequestHandler () const
	This method gets the request handler uses by this object. More...

Protected Member Functions
void	initializeState (const Teko::BlockedLinearOp &A, BlockPreconditionerState &state) const

Static Protected Member Functions
static void	buildTimers ()

Detailed Description

Strategy for computing $A_00^{-1}$ and $S^{-1}$ in the LU2x2PreconditionerFactory. Uses the diagonal of $A_00$ to build $S$ .

This should be paired with a LU2x2PreconditionerFactory, it build the $A_{00}^{-1}$ and $S^{-1}$ operators. where the Shur complement is $S = -A_{11} + A_{10} \mbox{diag}(A_{00})^{-1} A_{01}$ .

Definition at line 29 of file Teko_LU2x2DiagonalStrategy.hpp.

Constructor & Destructor Documentation

Teko::LU2x2DiagonalStrategy::LU2x2DiagonalStrategy ( )

default Constructor

Definition at line 37 of file Teko_LU2x2DiagonalStrategy.cpp.

Teko::LU2x2DiagonalStrategy::LU2x2DiagonalStrategy	(	const Teuchos::RCP< InverseFactory > &	invFA,
		const Teuchos::RCP< InverseFactory > &	invS
	)

Constructor to set the inverse factories.

Definition at line 40 of file Teko_LU2x2DiagonalStrategy.cpp.

virtual Teko::LU2x2DiagonalStrategy::~LU2x2DiagonalStrategy ( )

inlinevirtual

Destructor (does nothing)

Definition at line 39 of file Teko_LU2x2DiagonalStrategy.hpp.

Member Function Documentation

const Teko::LinearOp Teko::LU2x2DiagonalStrategy::getHatInvA00	(	const Teko::BlockedLinearOp &	A,
		BlockPreconditionerState &	state
	)		const

virtual

returns the first (approximate) inverse of $A_{00}$

Implements Teko::LU2x2Strategy.

Definition at line 47 of file Teko_LU2x2DiagonalStrategy.cpp.

const Teko::LinearOp Teko::LU2x2DiagonalStrategy::getTildeInvA00	(	const Teko::BlockedLinearOp &	A,
		BlockPreconditionerState &	state
	)		const

virtual

returns the second (approximate) inverse of $A_{00}$

Implements Teko::LU2x2Strategy.

Definition at line 55 of file Teko_LU2x2DiagonalStrategy.cpp.

const Teko::LinearOp Teko::LU2x2DiagonalStrategy::getInvS	(	const Teko::BlockedLinearOp &	A,
		BlockPreconditionerState &	state
	)		const

virtual

returns an (approximate) inverse of $S = -A_{11} + A_{10} \mbox{diag}(A_{00})^{-1} A_{01}$

Implements Teko::LU2x2Strategy.

Definition at line 64 of file Teko_LU2x2DiagonalStrategy.cpp.

void Teko::LU2x2DiagonalStrategy::initializeFromParameterList	(	const Teuchos::ParameterList &	pl,
		const InverseLibrary &	invLib
	)

virtual

This function builds the internals of the state from a parameter list.

This function builds the internals of the LU 2x2 state from a parameter list. Furthermore, it allows a developer to easily add a factory to the build system.

Parameters

[in]	settings	Parameter list to use as the internal settings
[in]	invLib	Inverse library to use for building inverse factory objects

Note: The default implementation does nothing.

Reimplemented from Teko::LU2x2Strategy.

Definition at line 143 of file Teko_LU2x2DiagonalStrategy.cpp.

void Teko::LU2x2DiagonalStrategy::buildTimers ( )

staticprotected

Build timers for this type of object.

Definition at line 23 of file Teko_LU2x2DiagonalStrategy.cpp.

void Teko::LU2x2DiagonalStrategy::initializeState	(	const Teko::BlockedLinearOp &	A,
		BlockPreconditionerState &	state
	)		const

protected

Initialize the operator's state. This builds the Schur complement and the inverse operators. If the state has already been initialized this method does nothing.

Parameters

[in]	A	Operator to intialize with.
[in]	state	Storage object for this operator.

Definition at line 71 of file Teko_LU2x2DiagonalStrategy.cpp.

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

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation