#include <TrivialPreconditioner.hpp>

Inheritance diagram for lama::TrivialPreconditioner:

Data Structures
struct	TrivialPreconditionerRuntime
Public Member Functions
	TrivialPreconditioner (const std::string &id)
	TrivialPreconditioner (const std::string &id, LoggerPtr logger)
	TrivialPreconditioner (const TrivialPreconditioner &other)
virtual	~TrivialPreconditioner ()
void	initialize (const Matrix &coefficients)
	Used to initialize a solver with a certain matrix A from A*u=f.
virtual void	solveImpl ()
	Solves the equation system.
virtual SolverPtr	copy ()
	Copies the status independent solver informations to create a new instance of the same type.
virtual TrivialPreconditionerRuntime &	getRuntime ()
	Returns the complete configuration of the derived class.
virtual const TrivialPreconditionerRuntime &	getConstRuntime () const
	Returns the complete const configuration of the derived class.
virtual void	solve (Vector &solution, const Vector &rhs)
	Solves the equation system based on the given rhs.
virtual void	solveInit (Vector &solution, const Vector &rhs)
	Initializes the solver with rhs and solution.
virtual void	solveFinalize ()
	Finalizes the solving process.
const std::string &	getId () const
	Returns the ID of this solver.
const Vector &	getResidual () const
	Contingently calculates the current residual based on the coefficients, rhs and solution currently associated with this.
const Matrix &	getCoefficients () const
	Gets the matrix A from A*u=f.
void	setLogger (LoggerPtr logger)
	Redefines mLogger.
void	setLogLevel (LogLevel::LogLevel level)
	Switches the loglevel of mLogger.
virtual void	setContext (ContextPtr context)
	Sets the context where this solver should be executed.
Protected Member Functions
virtual void	writeAt (std::ostream &stream) const
	Overrides Printable::writeAt with more useful stuff.
	LAMA_LOG_DECL_STATIC_LOGGER (logger)
Protected Attributes
TrivialPreconditionerRuntime	mTrivialPreconditionerRuntime
std::string	mId
	The ID of this solver.
LoggerPtr	mLogger
	The solver logger.
ContextPtr	mContext
	For forcing the context solver dependent.

Constructor & Destructor Documentation

lama::TrivialPreconditioner::TrivialPreconditioner ( const std::string & id )

Referenced by copy().

lama::TrivialPreconditioner::TrivialPreconditioner	(	const std::string &	id,
		LoggerPtr	logger
	)

lama::TrivialPreconditioner::TrivialPreconditioner ( const TrivialPreconditioner & other )

lama::TrivialPreconditioner::~TrivialPreconditioner ( ) [virtual]

Member Function Documentation

SolverPtr lama::TrivialPreconditioner::copy ( ) [virtual]

Copies the status independent solver informations to create a new instance of the same type.

Returns:: shared pointer of the copied solver

Implements lama::Solver.

References TrivialPreconditioner().

const Matrix & lama::Solver::getCoefficients ( ) const [inherited]

Gets the matrix A from A*u=f.

Returns:: The coefficient matrix A.

References lama::Solver::getConstRuntime(), LAMA_ASSERT_DEBUG, and lama::Solver::SolverRuntime::mCoefficients.

Referenced by lama::InverseSolver::invert(), and lama::LUSolver::piamax_own().

const TrivialPreconditioner::TrivialPreconditionerRuntime & lama::TrivialPreconditioner::getConstRuntime ( ) const [virtual]

Returns the complete const configuration of the derived class.

Implements lama::Solver.

References mTrivialPreconditionerRuntime.

const std::string & lama::Solver::getId ( ) const [inherited]

Returns the ID of this solver.

Returns:: The ID of this solver.

References lama::Solver::mId.

Referenced by lama::IterativeSolver::criteriaAreSatisfied(), lama::IterativeSolver::solveImpl(), and lama::SolverConfigGrammar::SolverConfigGrammar().

const Vector & lama::Solver::getResidual ( ) const [inherited]

Contingently calculates the current residual based on the coefficients, rhs and solution currently associated with this.

Should be used internally only, because the three vectors mentioned above have to be initialized.

Returns:: The current residual

References lama::LogLevel::completeInformation, lama::Vector::create(), lama::SolutionProxy::getConstReference(), lama::Solver::getConstRuntime(), lama::SolutionProxy::isDirty(), LAMA_ASSERT_DEBUG, lama::Solver::SolverRuntime::mCoefficients, lama::Solver::mLogger, lama::Solver::SolverRuntime::mResidual, lama::Solver::SolverRuntime::mRhs, lama::Solver::SolverRuntime::mSolution, and lama::SolutionProxy::setDirty().

Referenced by lama::ResidualStagnation::isSatisfied(), lama::ResidualThreshold::isSatisfied(), lama::CG::iterate(), lama::GMRES::iterate(), and lama::Logger::logResidual().

TrivialPreconditioner::TrivialPreconditionerRuntime & lama::TrivialPreconditioner::getRuntime ( ) [virtual]

Returns the complete configuration of the derived class.

Implements lama::Solver.

References mTrivialPreconditionerRuntime.

Referenced by solveImpl().

void lama::TrivialPreconditioner::initialize ( const Matrix & coefficients ) [virtual]

Used to initialize a solver with a certain matrix A from A*u=f.

This method initializes a solver with a certain coefficient-matrix. The only thing it does is storing the matrix pointer as a member for derived solver classes to use it. The caller delegates the property of the pointer to the Solver instance.

This method may be overwritten by base classes which desire more complex initialization.

Parameters:

coefficients The matrix A from A*u=f.

Reimplemented from lama::Solver.

lama::Solver::LAMA_LOG_DECL_STATIC_LOGGER ( logger ) [protected, inherited]

Reimplemented in lama::LUSolver, lama::IterativeSolver, lama::MetaSolver, lama::OmegaSolver, lama::SimpleAMG, lama::GMRES, lama::InverseSolver, lama::DefaultJacobi, lama::CG, and lama::SOR.

void lama::Solver::setContext ( ContextPtr context ) [virtual, inherited]

Sets the context where this solver should be executed.

Sets the context where this solver should be executed. Caution: This overrides the context of the coefficients matrix A from A * u = f used to inializ this solver.

Parameters:

[in] context the context where this solver should be executed.

Reimplemented in lama::InverseSolver.

References lama::Solver::mContext.

Referenced by lama::GMRES::initialize().

void lama::Solver::setLogger ( LoggerPtr logger ) [inherited]

Redefines mLogger.

References lama::Solver::mLogger.

void lama::Solver::setLogLevel ( LogLevel::LogLevel level ) [inherited]

Switches the loglevel of mLogger.

Returns:

References lama::Solver::mLogger.

void lama::Solver::solve	(	Vector &	solution,
		const Vector &	rhs
	)		`[virtual, inherited]`

Solves the equation system based on the given rhs.

The solver needs to be initialized first with the matrix from the equation to solve, e.g. A from A*u=f (call solver::initialize(A) for example) This method is abstract. It has to be implemented by a class which inherits from this class.

Parameters:

rhs	The right hand side of A*u=f.
solution	The solution from A*u=f. Mostly used as starting solution for an IterativeSolver.

Reimplemented in lama::LUSolver, lama::DefaultJacobi, and lama::SpecializedJacobi.

References lama::Solver::getConstRuntime(), LAMA_REGION, lama::Solver::solveFinalize(), lama::Solver::solveImpl(), and lama::Solver::solveInit().

Referenced by lama::SimpleAMG::cycle().

void lama::Solver::solveFinalize ( ) [virtual, inherited]

Finalizes the solving process.

Reimplemented in lama::DefaultJacobi, and lama::SpecializedJacobi.

Referenced by lama::Solver::solve().

void lama::TrivialPreconditioner::solveImpl ( ) [virtual]

Solves the equation system.

Rhs and starting solution have to be initialized first! (call solveInit( rhs, solution ) ). The solver needs to be initialized first with the matrix from the equation to solve, e.g. A from A*u=f (call solver::initialize(A) for example)

This method solves the equation system by using the given rhs and solution. For most solvers the solution-vector is used as a starting solution for the solve process. This class does not take responsibility for deleting the vectors after the solver! Make sure you do not delete the vectors during the solver process.

Implements lama::Solver.

References getRuntime().