Concrete LinearOpWithSolveBase subclass implemented using AztecOO. More...

#include <Thyra_AztecOOLinearOpWithSolve.hpp>

Private Member Functions
void	assertInitialized () const
Private Attributes
RCP< const LinearOpBase< double > >	fwdOp_
RCP< const LinearOpSourceBase < double > >	fwdOpSrc_
RCP< const PreconditionerBase < double > >	prec_
bool	isExternalPrec_
RCP< const LinearOpSourceBase < double > >	approxFwdOpSrc_
RCP< AztecOO >	aztecFwdSolver_
bool	allowInexactFwdSolve_
RCP< AztecOO >	aztecAdjSolver_
bool	allowInexactAdjSolve_
double	aztecSolverScalar_
Constructors/initializers/accessors
	AztecOOLinearOpWithSolve (const int fwdDefaultMaxIterations=400, const double fwdDefaultTol=1e-6, const int adjDefaultMaxIterations=400, const double adjDefaultTol=1e-6, const bool outputEveryRhs=false)
	STANDARD_MEMBER_COMPOSITION_MEMBERS (int, fwdDefaultMaxIterations)
	The default maximum number of iterations for forward solves.
	STANDARD_MEMBER_COMPOSITION_MEMBERS (double, fwdDefaultTol)
	The default solution tolerance on the residual for forward solves.
	STANDARD_MEMBER_COMPOSITION_MEMBERS (int, adjDefaultMaxIterations)
	The default maximum number of iterations for adjoint solves.
	STANDARD_MEMBER_COMPOSITION_MEMBERS (double, adjDefaultTol)
	The default solution tolerance on the residual for adjoint solves.
	STANDARD_MEMBER_COMPOSITION_MEMBERS (bool, outputEveryRhs)
	Determine if output for every RHS will be printed or not.
void	initialize (const RCP< const LinearOpBase< double > > &fwdOp, const RCP< const LinearOpSourceBase< double > > &fwdOpSrc, const RCP< const PreconditionerBase< double > > &prec, const bool isExternalPrec, const RCP< const LinearOpSourceBase< double > > &approxFwdOpSrc, const RCP< AztecOO > &aztecFwdSolver, const bool allowInexactFwdSolve=false, const RCP< AztecOO > &aztecAdjSolver=Teuchos::null, const bool allowInexactAdjSolve=false, const double aztecSolverScalar=1.0)
	Sets up this object.
RCP< const LinearOpSourceBase < double > >	extract_fwdOpSrc ()
	Extract the forward `LinearOpBase<double>` object so that it can be modified.
RCP< const PreconditionerBase < double > >	extract_prec ()
	Extract the preconditioner.
bool	isExternalPrec () const
	Determine if the preconditioner was external or not.
RCP< const LinearOpSourceBase < double > >	extract_approxFwdOpSrc ()
	Extract the approximate forward `LinearOpBase<double>` object used to build the preconditioner.
void	uninitialize (RCP< const LinearOpBase< double > > fwdOp=NULL, RCP< const LinearOpSourceBase< double > > fwdOpSrc=NULL, RCP< const PreconditionerBase< double > > prec=NULL, bool isExternalPrec=NULL, RCP< const LinearOpSourceBase< double > > approxFwdOpSrc=NULL, RCP< AztecOO > aztecFwdSolver=NULL, bool allowInexactFwdSolve=NULL, RCP< AztecOO > aztecAdjSolver=NULL, bool allowInexactAdjSolve=NULL, double aztecSolverScalar=NULL)
	Uninitialize.
Overridden from LinearOpBase
RCP< const VectorSpaceBase < double > >	range () const

RCP< const VectorSpaceBase < double > >	domain () const

RCP< const LinearOpBase< double > >	clone () const

virtual bool	opSupportedImpl (EOpTransp M_trans) const

virtual void	applyImpl (const EOpTransp M_trans, const MultiVectorBase< double > &X, const Ptr< MultiVectorBase< double > > &Y, const double alpha, const double beta) const

Overridden from Teuchos::Describable
std::string	description () const

void	describe (Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel) const

Overridden from LinearOpWithSolveBase.
virtual bool	solveSupportsImpl (EOpTransp M_trans) const

virtual bool	solveSupportsSolveMeasureTypeImpl (EOpTransp M_trans, const SolveMeasureType &solveMeasureType) const

SolveStatus< double >	solveImpl (const EOpTransp M_trans, const MultiVectorBase< double > &B, const Ptr< MultiVectorBase< double > > &X, const Ptr< const SolveCriteria< double > > solveCriteria) const

Detailed Description

Concrete LinearOpWithSolveBase subclass implemented using AztecOO.

This subclass is designed to be very flexible and handle a number of different use cases. It supports forward and optionally adjoint (transpose) solves. I can support inexact solves based on a relative residual norm tolerance or just allow for a default (i.e. tight) linear solve tolerance.

This subclass is not designed to be used directly by users but instead by subclasses of LinearOpWithSolveFactoryBase. One standard implementation that is fairly flexible (and will be make more flexible in the future) is AztecOOLinearOpWithSolveFactory.

This subclass allows for user-defined preconditioners or for built-in aztec preconditioners.

ToDo: Finish documentation!

Definition at line 77 of file Thyra_AztecOOLinearOpWithSolve.hpp.

Constructor & Destructor Documentation

Thyra::AztecOOLinearOpWithSolve::AztecOOLinearOpWithSolve	(	const int	fwdDefaultMaxIterations = `400`,
		const double	fwdDefaultTol = `1e-6`,
		const int	adjDefaultMaxIterations = `400`,
		const double	adjDefaultTol = `1e-6`,
		const bool	outputEveryRhs = `false`
	)

Construct uninitialized but with default option values.

Note, these defaults where taken from NOX::EpetraNew::LinearSystemAztecOO::applyJacobianInverse(...) on 2005/08/15.

Definition at line 194 of file Thyra_AztecOOLinearOpWithSolve.cpp.

Member Function Documentation

Thyra::AztecOOLinearOpWithSolve::STANDARD_MEMBER_COMPOSITION_MEMBERS	(	int	,
		fwdDefaultMaxIterations
	)

The default maximum number of iterations for forward solves.

Thyra::AztecOOLinearOpWithSolve::STANDARD_MEMBER_COMPOSITION_MEMBERS	(	double	,
		fwdDefaultTol
	)

The default solution tolerance on the residual for forward solves.

Thyra::AztecOOLinearOpWithSolve::STANDARD_MEMBER_COMPOSITION_MEMBERS	(	int	,
		adjDefaultMaxIterations
	)

The default maximum number of iterations for adjoint solves.

Thyra::AztecOOLinearOpWithSolve::STANDARD_MEMBER_COMPOSITION_MEMBERS	(	double	,
		adjDefaultTol
	)

The default solution tolerance on the residual for adjoint solves.

Thyra::AztecOOLinearOpWithSolve::STANDARD_MEMBER_COMPOSITION_MEMBERS	(	bool	,
		outputEveryRhs
	)

Determine if output for every RHS will be printed or not.

void Thyra::AztecOOLinearOpWithSolve::initialize	(	const RCP< const LinearOpBase< double > > &	fwdOp,
		const RCP< const LinearOpSourceBase< double > > &	fwdOpSrc,
		const RCP< const PreconditionerBase< double > > &	prec,
		const bool	isExternalPrec,
		const RCP< const LinearOpSourceBase< double > > &	approxFwdOpSrc,
		const RCP< AztecOO > &	aztecFwdSolver,
		const bool	allowInexactFwdSolve = `false`,
		const RCP< AztecOO > &	aztecAdjSolver = `Teuchos::null`,
		const bool	allowInexactAdjSolve = `false`,
		const double	aztecSolverScalar = `1.0`
	)

Sets up this object.

Parameters:

fwdOp	[in] The forward operator object that defines this objects `LinearOpBase` interface. interface.
fwdOpSrc	[in] The source for the forward operator object `fwdOp`. This also should be the exact same object that is passed in through a `LinearOpWithSolveFactoryBase` interface.
prec	[in] The original abstract preconditioner object that was passed through the `LinearOpWithSolveFactoryBase` interface. This object is not used for anything and can be set as `prec==Teuchos::null`.
isExternalPrec	[in] True if the precondition was created externally from the `LinearOpWithSolveFactoryBase` object, false otherwise.
approxFwdOpSrc	[in] The source for the original abstract approximate forward operator object that was passed through the `LinearOpWithSolveFactoryBase` interface. This object is not used for anything and can be set as `approxFwdOpSrc==Teuchos::null`.
aztecFwdSolver	[in] The `AztecOO` object used to perform forward solves. This object must be be ready to call `aztecFwdSolver->SetRHS()` and `aztecFwdSolver->SetLHS()` and then call `aztecFwdSolver->Solve()`.
allowInexactFwdSolve	[in] Determines if `this->solveSupportsSolveTolType(NOTRANS,SOLVE_TOL_REL_RESIDUAL_NORM)` returns true or not. With the current design, an inexact forward solve can not be supported if there is left scaling or a left preconditioner aggregated with `*aztecFwdOp`.
aztecAdjSolver	[in] The `AztecOO` object used to perform adjoint solves. This object must be be ready to call `aztecAdjSolver->SetRHS()` and `aztecAdjSolver->SetLHS()` and then call `aztecAdjSolver->Solve()`.
allowInexactAdjSolve	[in] Determines if `this->solveSupportsSolveTolType(TRANS,SOLVE_TOL_REL_RESIDUAL_NORM)` returns true or not. With the current design, an inexact forward solve can not be supported if there is left scaling or a left preconditioner aggregated with `*aztecFwdOp`.
linearSystemTransformer	[in] This is a transformation object that is called to pre-preprocess the linear problem before a forward and adjoint linear solver and post-process the linear problem after forward and adjoint linear solve. This abstract object is used to deal with scaling and aggregated preconditioners. It is what makes this implementation fairly flexible.

Preconditions:

fwdOp.get()!=NULL
fwdOpSrc.get()!=NULL
fwdFwdSolver.get()!=NULL

Postconditions:

this->range() == fwdOp->range()
this->domain() == fwdOp->domain()
this->opSupports(M_trans) == opSupports(*fwdOp,M_trans)
this->solveSupportsTrans(M_trans) == (aztecAdjSolver.get()!=NULL)
this->solveSupportsSolveTolType([NOTRANS,CONJ], SolveMeasureType(SOLVE_MEASURE_NORM_RESIDUAL,SOLVE_MESURE_NORM_RHS)) == allowInexactFwdSolve
this->solveSupportsSolveTolType([TRANS,CONJTRANS], SolveMeasureType(SOLVE_MEASURE_NORM_RESIDUAL,SOLVE_MESURE_NORM_RHS)) == (aztecAdjSolver.get()!=NULL&&allowInexactAdjSolve)

ToDo: Finish documentation!

Definition at line 213 of file Thyra_AztecOOLinearOpWithSolve.cpp.

RCP< const LinearOpSourceBase< double > > Thyra::AztecOOLinearOpWithSolve::extract_fwdOpSrc ( )

Extract the forward LinearOpBase<double> object so that it can be modified.

Definition at line 248 of file Thyra_AztecOOLinearOpWithSolve.cpp.

RCP< const PreconditionerBase< double > > Thyra::AztecOOLinearOpWithSolve::extract_prec ( )

Extract the preconditioner.

Definition at line 258 of file Thyra_AztecOOLinearOpWithSolve.cpp.

bool Thyra::AztecOOLinearOpWithSolve::isExternalPrec ( ) const

Determine if the preconditioner was external or not.

Definition at line 267 of file Thyra_AztecOOLinearOpWithSolve.cpp.

RCP< const LinearOpSourceBase< double > > Thyra::AztecOOLinearOpWithSolve::extract_approxFwdOpSrc ( )

Extract the approximate forward LinearOpBase<double> object used to build the preconditioner.

Definition at line 274 of file Thyra_AztecOOLinearOpWithSolve.cpp.

void Thyra::AztecOOLinearOpWithSolve::uninitialize	(	RCP< const LinearOpBase< double > > *	fwdOp = `NULL`,
		RCP< const LinearOpSourceBase< double > > *	fwdOpSrc = `NULL`,
		RCP< const PreconditionerBase< double > > *	prec = `NULL`,
		bool *	isExternalPrec = `NULL`,
		RCP< const LinearOpSourceBase< double > > *	approxFwdOpSrc = `NULL`,
		RCP< AztecOO > *	aztecFwdSolver = `NULL`,
		bool *	allowInexactFwdSolve = `NULL`,
		RCP< AztecOO > *	aztecAdjSolver = `NULL`,
		bool *	allowInexactAdjSolve = `NULL`,
		double *	aztecSolverScalar = `NULL`
	)

Uninitialize.

Definition at line 283 of file Thyra_AztecOOLinearOpWithSolve.cpp.

RCP< const VectorSpaceBase< double > > Thyra::AztecOOLinearOpWithSolve::range ( ) const

Definition at line 324 of file Thyra_AztecOOLinearOpWithSolve.cpp.

RCP< const VectorSpaceBase< double > > Thyra::AztecOOLinearOpWithSolve::domain ( ) const

Definition at line 331 of file Thyra_AztecOOLinearOpWithSolve.cpp.

RCP< const LinearOpBase< double > > Thyra::AztecOOLinearOpWithSolve::clone ( ) const

Definition at line 338 of file Thyra_AztecOOLinearOpWithSolve.cpp.

std::string Thyra::AztecOOLinearOpWithSolve::description ( ) const

Definition at line 347 of file Thyra_AztecOOLinearOpWithSolve.cpp.

void Thyra::AztecOOLinearOpWithSolve::describe	(	Teuchos::FancyOStream &	out,
		const Teuchos::EVerbosityLevel	verbLevel
	)		const

Definition at line 360 of file Thyra_AztecOOLinearOpWithSolve.cpp.

bool Thyra::AztecOOLinearOpWithSolve::opSupportedImpl ( EOpTransp M_trans ) const [protected, virtual]

Definition at line 438 of file Thyra_AztecOOLinearOpWithSolve.cpp.

void Thyra::AztecOOLinearOpWithSolve::applyImpl	(	const EOpTransp	M_trans,
		const MultiVectorBase< double > &	X,
		const Ptr< MultiVectorBase< double > > &	Y,
		const double	alpha,
		const double	beta
	)		const `[protected, virtual]`

Definition at line 444 of file Thyra_AztecOOLinearOpWithSolve.cpp.

bool Thyra::AztecOOLinearOpWithSolve::solveSupportsImpl ( EOpTransp M_trans ) const [protected, virtual]

Definition at line 460 of file Thyra_AztecOOLinearOpWithSolve.cpp.

bool Thyra::AztecOOLinearOpWithSolve::solveSupportsSolveMeasureTypeImpl	(	EOpTransp	M_trans,
		const SolveMeasureType &	solveMeasureType
	)		const `[protected, virtual]`

Definition at line 468 of file Thyra_AztecOOLinearOpWithSolve.cpp.

SolveStatus< double > Thyra::AztecOOLinearOpWithSolve::solveImpl	(	const EOpTransp	M_trans,
		const MultiVectorBase< double > &	B,
		const Ptr< MultiVectorBase< double > > &	X,
		const Ptr< const SolveCriteria< double > >	solveCriteria
	)		const `[protected]`