#include <TrilinosMLSolver.h>

Inheritance diagram for AMP::Solver::TrilinosMLSolver:

Public Types
typedef std::shared_ptr< AMP::Solver::SolverStrategy >	shared_ptr

enum class	SolverStatus { ConvergedOnAbsTol , ConvergedOnRelTol , ConvergedUserCondition , MaxIterations , DivergedLineSearch , DivergedStepSize , DivergedFunctionCount , DivergedOnNan , DivergedNestedSolver , DivergedOther }

Public Member Functions
void	apply (std::shared_ptr< const AMP::LinearAlgebra::Vector > f, std::shared_ptr< AMP::LinearAlgebra::Vector > u) override

AMP::Scalar	getAbsoluteTolerance () const

bool	getConverged (void) const

SolverStatus	getConvergenceStatus (void) const

std::string	getConvergenceStatusString (void) const

int	getDebugPrintInfoLevel (void)

AMP::Utilities::ExecutionSpace	getExecutionSpace () const

std::shared_ptr< AMP::LinearAlgebra::Vector >	getFunctionScaling ()

virtual AMP::Scalar	getInitialResidual (void) const

virtual const std::vector< int > &	getIterationHistory (void)

virtual int	getIterations (void) const

int	getMaxIterations (void) const

std::shared_ptr< ML_Epetra::MultiLevelPreconditioner >	getMLSolver (void)

virtual std::shared_ptr< SolverStrategy >	getNestedSolver (void)

virtual std::shared_ptr< AMP::Operator::Operator >	getOperator (void)

AMP::Scalar	getRelativeTolerance () const

virtual AMP::Scalar	getResidualNorm (void) const

std::shared_ptr< AMP::LinearAlgebra::Vector >	getSolutionScaling ()

int	getTotalNumberOfIterations (void)

void	initialize (std::shared_ptr< const SolverStrategyParameters > parameters) override

virtual void	print (std::ostream &)

virtual void	printConvergenceStatus (SolverStrategy::SolverStatus, std::ostream &=AMP::pout) const

virtual void	printStatistics (std::ostream &os=AMP::pout)

void	registerOperator (std::shared_ptr< AMP::Operator::Operator > op) override

virtual void	registerWriter (std::shared_ptr< AMP::IO::Writer > writer)
	Registers a writer with the solver.

void	reset (std::shared_ptr< SolverStrategyParameters > params) override

void	resetOperator (std::shared_ptr< const AMP::Operator::OperatorParameters > params) override

virtual void	residual (std::shared_ptr< const AMP::LinearAlgebra::Vector > f, std::shared_ptr< const AMP::LinearAlgebra::Vector > u, std::shared_ptr< AMP::LinearAlgebra::Vector > r)

virtual void	setAbsoluteTolerance (AMP::Scalar abs_tol)

void	setComponentScalings (std::shared_ptr< AMP::LinearAlgebra::Vector > s, std::shared_ptr< AMP::LinearAlgebra::Vector > f)
	for multiphysics problems it may be necessary to scale the solution

virtual void	setDebugPrintInfoLevel (int print_level)

void	setExecutionSpace (AMP::Utilities::ExecutionSpace space)

virtual void	setInitialGuess (std::shared_ptr< AMP::LinearAlgebra::Vector > initialGuess)

void	setIsNestedSolver (bool is_nested)
	Tell a solver that it is nested inside some outer solver.

virtual void	setMaxIterations (const int max_iterations)

virtual void	setNestedSolver (std::shared_ptr< SolverStrategy > solver)

virtual void	setRelativeTolerance (AMP::Scalar rel_tol)

virtual void	setZeroInitialGuess (bool use_zero_guess)

	TrilinosMLSolver ()

	TrilinosMLSolver (std::shared_ptr< TrilinosMLSolverParameters > parameters)

std::string	type () const override
	Return the name of the solver.

virtual	~TrilinosMLSolver ()

Static Public Member Functions
static std::unique_ptr< SolverStrategy >	createSolver (std::shared_ptr< SolverStrategyParameters > solverStrategyParameters)
	static create routine that is used by SolverFactory

static std::string	statusToString (SolverStatus status)

Protected Member Functions
void	buildML ()

virtual bool	checkStoppingCriteria (AMP::Scalar res_norm, bool check_iters=true)

void	computeCoordinates (std::shared_ptr< AMP::Operator::Operator > op)

void	computeNullSpace (std::shared_ptr< AMP::Operator::Operator > op)

void	convertMLoptionsToTeuchosParameterList ()

void	getBaseFromInput (std::shared_ptr< AMP::Database > db)

void	getFromInput (std::shared_ptr< AMP::Database > db)

void	reSolveWithLU (std::shared_ptr< const AMP::LinearAlgebra::Vector > f, std::shared_ptr< AMP::LinearAlgebra::Vector > u)

Protected Attributes
bool	d_bComputeResidual = false

bool	d_bIsNestedSolver = false

bool	d_bUseZeroInitialGuess = true

SolverStatus	d_ConvergenceStatus = SolverStatus::DivergedOther

AMP::Scalar	d_dAbsoluteTolerance = 1.0e-14

std::shared_ptr< AMP::Database >	d_db = nullptr

AMP::Scalar	d_dInitialResidual

AMP::Scalar	d_dRelativeTolerance = 1.0e-09

AMP::Scalar	d_dResidualNorm

AMP::Utilities::ExecutionSpace	d_exec_space = AMP::Utilities::ExecutionSpace::unspecified
	execution space for the solver

std::shared_ptr< AMP::Database >	d_global_db = nullptr

int	d_iDebugPrintInfoLevel = 0

int	d_iMaxIterations = 0

int	d_iNumberIterations = 0

int	d_iObjectId

std::vector< int >	d_iterationHistory
	keeps track of iteration statistics over solver lifetime

AMP::Utilities::MemoryType	d_memory_location = AMP::Utilities::MemoryType::none
	memory storage address space

std::shared_ptr< AMP::LinearAlgebra::Vector >	d_pFunctionScaling

std::shared_ptr< AMP::Solver::SolverStrategy >	d_pNestedSolver = nullptr
	nested solver used by this solver

std::shared_ptr< AMP::Operator::Operator >	d_pOperator = nullptr

std::shared_ptr< AMP::LinearAlgebra::Vector >	d_pSolutionScaling

std::string	d_sName

std::shared_ptr< AMP::IO::Writer >	d_writer = nullptr

Static Protected Attributes
static int	d_iInstanceId

Private Attributes
bool	d_bCreationPhase

bool	d_bRobustMode

bool	d_bUseEpetra

AMP_MPI	d_comm

std::shared_ptr< AMP::LinearAlgebra::ManagedEpetraMatrix >	d_matrix

ML *	d_ml

ML_Aggregate *	d_mlAggregate

std::shared_ptr< MLoptions >	d_mlOptions

Teuchos::ParameterList	d_MLParameterList

std::shared_ptr< ML_Epetra::MultiLevelPreconditioner >	d_mlSolver

std::vector< double >	d_null_space

std::vector< double >	d_x_values

std::vector< double >	d_y_values

std::vector< double >	d_z_values

Detailed Description

The TrilinosMLSolver is a wrapper to the Trilinos ML solver. ML provides implementations of various algebraic multigrid methods. The wrapper at present simply provides an adaptor to enable AMP users to use the black box ML preconditioner.

Definition at line 38 of file TrilinosMLSolver.h.

Member Typedef Documentation

◆ shared_ptr

typedef std::shared_ptr<AMP::Solver::SolverStrategy> AMP::Solver::SolverStrategy::shared_ptr

inherited

Definition at line 30 of file SolverStrategy.h.

Member Enumeration Documentation

◆ SolverStatus

enum class AMP::Solver::SolverStrategy::SolverStatus

stronginherited

Enumerator
ConvergedOnAbsTol
ConvergedOnRelTol
ConvergedUserCondition
MaxIterations
DivergedLineSearch
DivergedStepSize
DivergedFunctionCount
DivergedOnNan
DivergedNestedSolver
DivergedOther

Definition at line 62 of file SolverStrategy.h.

Constructor & Destructor Documentation

◆ TrilinosMLSolver() [1/2]

AMP::Solver::TrilinosMLSolver::TrilinosMLSolver ( )

Default constructor

◆ TrilinosMLSolver() [2/2]

AMP::Solver::TrilinosMLSolver::TrilinosMLSolver ( std::shared_ptr< TrilinosMLSolverParameters > parameters )

explicit

Main constructor.

Parameters

[in] parameters The parameters object contains a database object which must contain the following fields in addition to the fields expected by the base class SolverStrategy class:

name: print_info_level, type: integer, (optional), default value: 0 acceptable values (non-negative integer values)
name: prec_type, type: string, (optional), default value: "MGV" acceptable values (see ML manual)
name: max_levels, type: integer, (optional), default value: 5 acceptable values (see ML manual)
name: increasingordecreasing, type: string, (optional), default value: "increasing" acceptable values (see ML manual)
name: aggregation_dampingfactor, type: double, (optional), default value: 4.0/3/0 acceptable values (see ML manual)
name: aggregationthreshold, type: double, (optional), default value: 0.0 acceptable values (see ML manual)
name: eigen-analysis_type, type: string, (optional), default value: "cg" acceptable values (see ML manual)
name: eigen-analysis_iterations, type: integer, (optional), default value: 10 acceptable values (see ML manual)
name: smoother_sweeps, type: integer, (optional), default value: 2 acceptable values (see ML manual)
name: smoother_dampingfactor, type: double, (optional), default value: 1.0 acceptable values (see ML manual)
name: aggregation_nodes_per_aggregate, type: integer, (optional), default value: none acceptable values (see ML manual)
name: aggregation_nextlevel_aggregates_per_process, type: integer, (optional), default value: none acceptable values (see ML manual)
name: aggregation_damping_factor, type: , (optional), default value: none acceptable values (see ML manual)
name: energy_minimization_enable, type: , (optional), default value: none acceptable values (see ML manual)
name: smoother_preorpost, type: string, (optional), default value: "both" acceptable values (see ML manual)
name: smoothertype, type: string, (optional), default value: "symmetric Gauss-Seidel" acceptable values (see ML manual)
name: coarse_type, type: string, (optional), default value: "Amesos-KLU" acceptable values (see ML manual)
name: PDE_equations, type: integer, (optional), default value: 1 acceptable values (see ML manual)
name: coarse_maxsize, type: integer, (optional), default value: 128 acceptable values (see ML manual)
name: USE_EPETRA, type: bool, (optional), default value: true
name: problem_type, type: string, (optional), default value: "SA" acceptable values "SA" for symmetric and "NSSA" for unsymmetric problems
name: aggregation_aux_enable, type: bool, (optional), default_value: false
name: aggregation_aux_threshold, type: double, (optional), default_values: 0.0
name: null_space_type, type: string, (optional), default value: none
name: null_space_dimension, type: integer, (optional), default value: 3
name: null_space_add_default_vectors, type: bool, (optional), default value: true

◆ ~TrilinosMLSolver()

virtual AMP::Solver::TrilinosMLSolver::~TrilinosMLSolver ( )

virtual

Default destructor

Member Function Documentation

◆ apply()

void AMP::Solver::TrilinosMLSolver::apply	(	std::shared_ptr< const AMP::LinearAlgebra::Vector >	f,
		std::shared_ptr< AMP::LinearAlgebra::Vector >	u
	)

overridevirtual

Solve the system $Au = f$.

Parameters

[in]	f	: shared pointer to right hand side vector
[out]	u	: shared pointer to approximate computed solution

Implements AMP::Solver::SolverStrategy.

◆ buildML()

void AMP::Solver::TrilinosMLSolver::buildML ( )

protected

◆ checkStoppingCriteria()

virtual bool AMP::Solver::SolverStrategy::checkStoppingCriteria	(	AMP::Scalar	res_norm,
		bool	check_iters = `true`
	)

protectedvirtualinherited

◆ computeCoordinates()

void AMP::Solver::TrilinosMLSolver::computeCoordinates ( std::shared_ptr< AMP::Operator::Operator > op )

protected

◆ computeNullSpace()

void AMP::Solver::TrilinosMLSolver::computeNullSpace ( std::shared_ptr< AMP::Operator::Operator > op )

protected

◆ convertMLoptionsToTeuchosParameterList()

void AMP::Solver::TrilinosMLSolver::convertMLoptionsToTeuchosParameterList ( )

protected

◆ createSolver()

static std::unique_ptr< SolverStrategy > AMP::Solver::TrilinosMLSolver::createSolver ( std::shared_ptr< SolverStrategyParameters > solverStrategyParameters )

inlinestatic

static create routine that is used by SolverFactory

Definition at line 136 of file TrilinosMLSolver.h.

◆ getAbsoluteTolerance()

AMP::Scalar AMP::Solver::SolverStrategy::getAbsoluteTolerance ( ) const

inlineinherited

Definition at line 208 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_dAbsoluteTolerance.

◆ getBaseFromInput()

void AMP::Solver::SolverStrategy::getBaseFromInput ( std::shared_ptr< AMP::Database > db )

protectedinherited

◆ getConverged()

bool AMP::Solver::SolverStrategy::getConverged ( void ) const

inlineinherited

Definition at line 225 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::ConvergedUserCondition, and AMP::Solver::SolverStrategy::d_ConvergenceStatus.

◆ getConvergenceStatus()

SolverStatus AMP::Solver::SolverStrategy::getConvergenceStatus ( void ) const

inlineinherited

Definition at line 230 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_ConvergenceStatus.

◆ getConvergenceStatusString()

std::string AMP::Solver::SolverStrategy::getConvergenceStatusString ( void ) const

inlineinherited

Definition at line 232 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_ConvergenceStatus, and AMP::Solver::SolverStrategy::statusToString().

◆ getDebugPrintInfoLevel()

int AMP::Solver::SolverStrategy::getDebugPrintInfoLevel ( void )

inlineinherited

Get level of diagnostic information printed during iterations.

Definition at line 137 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_iDebugPrintInfoLevel.

◆ getExecutionSpace()

AMP::Utilities::ExecutionSpace AMP::Solver::SolverStrategy::getExecutionSpace ( ) const

inlineinherited

Definition at line 269 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_exec_space.

◆ getFromInput()

void AMP::Solver::TrilinosMLSolver::getFromInput ( std::shared_ptr< AMP::Database > db )

protected

◆ getFunctionScaling()

std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Solver::SolverStrategy::getFunctionScaling ( )

inlineinherited

Definition at line 267 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_pFunctionScaling.

◆ getInitialResidual()

virtual AMP::Scalar AMP::Solver::SolverStrategy::getInitialResidual ( void ) const

inlinevirtualinherited

Definition at line 241 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_dInitialResidual.

◆ getIterationHistory()

virtual const std::vector< int > & AMP::Solver::SolverStrategy::getIterationHistory ( void )

inlinevirtualinherited

Definition at line 243 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_iterationHistory.

◆ getIterations()

virtual int AMP::Solver::SolverStrategy::getIterations ( void ) const

inlinevirtualinherited

Return the number of iterations taken by the solver to converge.

Definition at line 142 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_iNumberIterations.

◆ getMaxIterations()

int AMP::Solver::SolverStrategy::getMaxIterations ( void ) const

inlineinherited

Definition at line 218 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_iMaxIterations.

◆ getMLSolver()

std::shared_ptr< ML_Epetra::MultiLevelPreconditioner > AMP::Solver::TrilinosMLSolver::getMLSolver ( void )

inline

Return a shared pointer to the ML_Epetra::MultiLevelPreconditioner object

Definition at line 152 of file TrilinosMLSolver.h.

References d_mlSolver.

◆ getNestedSolver()

virtual std::shared_ptr< SolverStrategy > AMP::Solver::SolverStrategy::getNestedSolver ( void )

inlinevirtualinherited

Return a nested solver (eg preconditioner) if it exists. By default return a nullptr

Reimplemented in AMP::Solver::PetscSNESSolver.

Definition at line 172 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_pNestedSolver.

◆ getOperator()

virtual std::shared_ptr< AMP::Operator::Operator > AMP::Solver::SolverStrategy::getOperator ( void )

virtualinherited

Return a shared pointer to the operator registered with the solver.

◆ getRelativeTolerance()

AMP::Scalar AMP::Solver::SolverStrategy::getRelativeTolerance ( ) const

inlineinherited

Definition at line 212 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_dRelativeTolerance.

◆ getResidualNorm()

virtual AMP::Scalar AMP::Solver::SolverStrategy::getResidualNorm ( void ) const

inlinevirtualinherited

Definition at line 239 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_dResidualNorm.

◆ getSolutionScaling()

std::shared_ptr< AMP::LinearAlgebra::Vector > AMP::Solver::SolverStrategy::getSolutionScaling ( )

inlineinherited

Definition at line 266 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_pSolutionScaling.

◆ getTotalNumberOfIterations()

int AMP::Solver::SolverStrategy::getTotalNumberOfIterations ( void )

inherited

◆ initialize()

void AMP::Solver::TrilinosMLSolver::initialize ( std::shared_ptr< const SolverStrategyParameters > parameters )

overridevirtual

Initialize the solution ve::include <Teuchos_ParameterList.hpp>ctor and potentially create internal vectors needed for solution

Parameters

[in] parameters The parameters object contains a database object. Refer to the documentation for the constructor to see what fields are required. This routine assumes that a non-NULL operator of type LinearOperator has been registered with the solver. The LinearOperator currently is assumed to contain a pointer to an EpetraMatrix object.

Reimplemented from AMP::Solver::SolverStrategy.

◆ print()

virtual void AMP::Solver::SolverStrategy::print ( std::ostream & )

inlinevirtualinherited

Definition at line 237 of file SolverStrategy.h.

◆ printConvergenceStatus()

virtual void AMP::Solver::SolverStrategy::printConvergenceStatus	(	SolverStrategy::SolverStatus	,
		std::ostream &	= `AMP::pout`
	)		const

inlinevirtualinherited

Reimplemented in AMP::Solver::PetscSNESSolver.

Definition at line 251 of file SolverStrategy.h.

◆ printStatistics()

virtual void AMP::Solver::SolverStrategy::printStatistics ( std::ostream & os = AMP::pout )

inlinevirtualinherited

Reimplemented in AMP::Solver::NonlinearKrylovAccelerator< T >.

Definition at line 220 of file SolverStrategy.h.

◆ registerOperator()

void AMP::Solver::TrilinosMLSolver::registerOperator ( std::shared_ptr< AMP::Operator::Operator > op )

overridevirtual

Register the operator that the solver will use during solves

Parameters

[in] op shared pointer to the linear operator $A$ for equation $A u = f$

Reimplemented from AMP::Solver::SolverStrategy.

◆ registerWriter()

virtual void AMP::Solver::SolverStrategy::registerWriter ( std::shared_ptr< AMP::IO::Writer > writer )

inlinevirtualinherited

Registers a writer with the solver.

This function will register a writer with the solver. The solver may then register any vector components it "owns" with the writer.

Parameters

writer The writer to register

Definition at line 186 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_writer.

◆ reset()

void AMP::Solver::TrilinosMLSolver::reset ( std::shared_ptr< SolverStrategyParameters > params )

overridevirtual

Resets the solver internally with new parameters if necessary

Parameters

[in] params SolverStrategyParameters object that is NULL by default Currently every call to reset destroys the ML preconditioner object and recreates it based on the parameters object. See constructor for fields required for parameter object.

Reimplemented from AMP::Solver::SolverStrategy.

◆ resetOperator()

void AMP::Solver::TrilinosMLSolver::resetOperator ( std::shared_ptr< const AMP::Operator::OperatorParameters > params )

overridevirtual

Resets the associated operator internally with new parameters if necessary

Parameters

[in] params OperatorParameters object that is NULL by default

Reimplemented from AMP::Solver::SolverStrategy.

◆ residual()

virtual void AMP::Solver::SolverStrategy::residual	(	std::shared_ptr< const AMP::LinearAlgebra::Vector >	f,
		std::shared_ptr< const AMP::LinearAlgebra::Vector >	u,
		std::shared_ptr< AMP::LinearAlgebra::Vector >	r
	)

virtualinherited

◆ reSolveWithLU()

void AMP::Solver::TrilinosMLSolver::reSolveWithLU	(	std::shared_ptr< const AMP::LinearAlgebra::Vector >	f,
		std::shared_ptr< AMP::LinearAlgebra::Vector >	u
	)

protected

◆ setAbsoluteTolerance()

virtual void AMP::Solver::SolverStrategy::setAbsoluteTolerance ( AMP::Scalar abs_tol )

inlinevirtualinherited

Definition at line 210 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_dAbsoluteTolerance.

◆ setComponentScalings()

void AMP::Solver::SolverStrategy::setComponentScalings	(	std::shared_ptr< AMP::LinearAlgebra::Vector >	s,
		std::shared_ptr< AMP::LinearAlgebra::Vector >	f
	)

inlineinherited

for multiphysics problems it may be necessary to scale the solution

Definition at line 259 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_pFunctionScaling, and AMP::Solver::SolverStrategy::d_pSolutionScaling.

◆ setDebugPrintInfoLevel()

virtual void AMP::Solver::SolverStrategy::setDebugPrintInfoLevel ( int print_level )

inlinevirtualinherited

Specify level of diagnostic information printed during iterations.

Parameters

[in] print_level integer level value with permissible values 0 and higher. Setting to zero should provide minimial debugging information with higher values resulting in increasingly verbose information being printed out.

Definition at line 132 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_iDebugPrintInfoLevel.

◆ setExecutionSpace()

void AMP::Solver::SolverStrategy::setExecutionSpace ( AMP::Utilities::ExecutionSpace space )

inlineinherited

Definition at line 270 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_exec_space.

◆ setInitialGuess()

virtual void AMP::Solver::SolverStrategy::setInitialGuess ( std::shared_ptr< AMP::LinearAlgebra::Vector > initialGuess )

virtualinherited

Provide the initial guess for the solver. This is a pure virtual function that the derived classes need to provide an implementation of.

Parameters

[in] initialGuess shared pointer to the initial guess vector.

Reimplemented in AMP::Solver::ColumnSolver, AMP::Solver::CoupledFlow1DSolver, AMP::Solver::Flow1DSolver, AMP::Solver::PetscSNESSolver, and AMP::Solver::TrilinosNOXSolver.

◆ setIsNestedSolver()

void AMP::Solver::SolverStrategy::setIsNestedSolver ( bool is_nested )

inlineinherited

Tell a solver that it is nested inside some outer solver.

Definition at line 166 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_bIsNestedSolver.

◆ setMaxIterations()

virtual void AMP::Solver::SolverStrategy::setMaxIterations ( const int max_iterations )

inlinevirtualinherited

Definition at line 216 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_iMaxIterations.

◆ setNestedSolver()

virtual void AMP::Solver::SolverStrategy::setNestedSolver ( std::shared_ptr< SolverStrategy > solver )

inlinevirtualinherited

Set a nested solver, eg, Krylov for Newton, preconditioner for Krylov etc. Null op in base class

Definition at line 159 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_pNestedSolver.

◆ setRelativeTolerance()

virtual void AMP::Solver::SolverStrategy::setRelativeTolerance ( AMP::Scalar rel_tol )

inlinevirtualinherited

Definition at line 214 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_dRelativeTolerance.

◆ setZeroInitialGuess()

virtual void AMP::Solver::SolverStrategy::setZeroInitialGuess ( bool use_zero_guess )

inlinevirtualinherited

Tells the solver to use an initial guess of zero and not try to copy an initial guess into the solution vector

Parameters

[in] use_zero_guess boolean to specify whether zero initial guess should be used or not.

Reimplemented in AMP::Solver::PetscKrylovSolver.

Definition at line 150 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::d_bUseZeroInitialGuess.

◆ statusToString()

static std::string AMP::Solver::SolverStrategy::statusToString ( SolverStatus status )

inlinestaticinherited

Definition at line 75 of file SolverStrategy.h.

References AMP::Solver::SolverStrategy::ConvergedOnAbsTol, AMP::Solver::SolverStrategy::ConvergedOnRelTol, AMP::Solver::SolverStrategy::ConvergedUserCondition, AMP::Solver::SolverStrategy::DivergedFunctionCount, AMP::Solver::SolverStrategy::DivergedLineSearch, AMP::Solver::SolverStrategy::DivergedNestedSolver, AMP::Solver::SolverStrategy::DivergedOnNan, AMP::Solver::SolverStrategy::DivergedStepSize, and AMP::Solver::SolverStrategy::MaxIterations.

Referenced by AMP::Solver::SolverStrategy::getConvergenceStatusString().

◆ type()

std::string AMP::Solver::TrilinosMLSolver::type ( ) const

inlineoverridevirtual

Return the name of the solver.

Implements AMP::Solver::SolverStrategy.

Definition at line 132 of file TrilinosMLSolver.h.

Member Data Documentation

◆ d_bComputeResidual

bool AMP::Solver::SolverStrategy::d_bComputeResidual = false

protectedinherited

Definition at line 295 of file SolverStrategy.h.

◆ d_bCreationPhase

bool AMP::Solver::TrilinosMLSolver::d_bCreationPhase

private

set to true if the PC is not ready and false otherwise.

Definition at line 212 of file TrilinosMLSolver.h.

◆ d_bIsNestedSolver

bool AMP::Solver::SolverStrategy::d_bIsNestedSolver = false

protectedinherited

Definition at line 294 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::setIsNestedSolver().

◆ d_bRobustMode

bool AMP::Solver::TrilinosMLSolver::d_bRobustMode

private

Definition at line 213 of file TrilinosMLSolver.h.

◆ d_bUseEpetra

bool AMP::Solver::TrilinosMLSolver::d_bUseEpetra

private

Definition at line 206 of file TrilinosMLSolver.h.

◆ d_bUseZeroInitialGuess

bool AMP::Solver::SolverStrategy::d_bUseZeroInitialGuess = true

protectedinherited

Definition at line 292 of file SolverStrategy.h.

Referenced by AMP::Solver::OnePointSolver::apply(), and AMP::Solver::SolverStrategy::setZeroInitialGuess().

◆ d_comm

AMP_MPI AMP::Solver::TrilinosMLSolver::d_comm

private

Definition at line 210 of file TrilinosMLSolver.h.

◆ d_ConvergenceStatus

SolverStatus AMP::Solver::SolverStrategy::d_ConvergenceStatus = SolverStatus::DivergedOther

protectedinherited

Definition at line 276 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getConverged(), AMP::Solver::SolverStrategy::getConvergenceStatus(), and AMP::Solver::SolverStrategy::getConvergenceStatusString().

◆ d_dAbsoluteTolerance

AMP::Scalar AMP::Solver::SolverStrategy::d_dAbsoluteTolerance = 1.0e-14

protectedinherited

Definition at line 287 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getAbsoluteTolerance(), and AMP::Solver::SolverStrategy::setAbsoluteTolerance().

◆ d_db

std::shared_ptr<AMP::Database> AMP::Solver::SolverStrategy::d_db = nullptr

protectedinherited

Definition at line 304 of file SolverStrategy.h.

◆ d_dInitialResidual

AMP::Scalar AMP::Solver::SolverStrategy::d_dInitialResidual

protectedinherited

Definition at line 285 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getInitialResidual().

◆ d_dRelativeTolerance

AMP::Scalar AMP::Solver::SolverStrategy::d_dRelativeTolerance = 1.0e-09

protectedinherited

Definition at line 288 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getRelativeTolerance(), and AMP::Solver::SolverStrategy::setRelativeTolerance().

◆ d_dResidualNorm

AMP::Scalar AMP::Solver::SolverStrategy::d_dResidualNorm

protectedinherited

Definition at line 284 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getResidualNorm().

◆ d_exec_space

AMP::Utilities::ExecutionSpace AMP::Solver::SolverStrategy::d_exec_space = AMP::Utilities::ExecutionSpace::unspecified

protectedinherited

execution space for the solver

Definition at line 324 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getExecutionSpace(), and AMP::Solver::SolverStrategy::setExecutionSpace().

◆ d_global_db

std::shared_ptr<AMP::Database> AMP::Solver::SolverStrategy::d_global_db = nullptr

protectedinherited

Pointer to global database This is temporary fix and eventually either d_global_db or d_db should go away This is introduced to allow for solver factories to access databases in the global database for the construction of nested solvers

Definition at line 311 of file SolverStrategy.h.

◆ d_iDebugPrintInfoLevel

int AMP::Solver::SolverStrategy::d_iDebugPrintInfoLevel = 0

protectedinherited

Definition at line 290 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getDebugPrintInfoLevel(), and AMP::Solver::SolverStrategy::setDebugPrintInfoLevel().

◆ d_iInstanceId

int AMP::Solver::SolverStrategy::d_iInstanceId

staticprotectedinherited

Definition at line 299 of file SolverStrategy.h.

◆ d_iMaxIterations

int AMP::Solver::SolverStrategy::d_iMaxIterations = 0

protectedinherited

Definition at line 282 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getMaxIterations(), and AMP::Solver::SolverStrategy::setMaxIterations().

◆ d_iNumberIterations

int AMP::Solver::SolverStrategy::d_iNumberIterations = 0

protectedinherited

Definition at line 280 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getIterations().

◆ d_iObjectId

int AMP::Solver::SolverStrategy::d_iObjectId

protectedinherited

Definition at line 297 of file SolverStrategy.h.

◆ d_iterationHistory

std::vector<int> AMP::Solver::SolverStrategy::d_iterationHistory

protectedinherited

keeps track of iteration statistics over solver lifetime

Definition at line 302 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getIterationHistory().

◆ d_matrix

std::shared_ptr<AMP::LinearAlgebra::ManagedEpetraMatrix> AMP::Solver::TrilinosMLSolver::d_matrix

private

Definition at line 218 of file TrilinosMLSolver.h.

◆ d_memory_location

AMP::Utilities::MemoryType AMP::Solver::SolverStrategy::d_memory_location = AMP::Utilities::MemoryType::none

protectedinherited

memory storage address space

Definition at line 327 of file SolverStrategy.h.

◆ d_ml

ML* AMP::Solver::TrilinosMLSolver::d_ml

private

Definition at line 207 of file TrilinosMLSolver.h.

◆ d_mlAggregate

ML_Aggregate* AMP::Solver::TrilinosMLSolver::d_mlAggregate

private

Definition at line 208 of file TrilinosMLSolver.h.

◆ d_mlOptions

std::shared_ptr<MLoptions> AMP::Solver::TrilinosMLSolver::d_mlOptions

private

Definition at line 215 of file TrilinosMLSolver.h.

◆ d_MLParameterList

Teuchos::ParameterList AMP::Solver::TrilinosMLSolver::d_MLParameterList

private

Definition at line 219 of file TrilinosMLSolver.h.

◆ d_mlSolver

std::shared_ptr<ML_Epetra::MultiLevelPreconditioner> AMP::Solver::TrilinosMLSolver::d_mlSolver

private

Definition at line 217 of file TrilinosMLSolver.h.

Referenced by getMLSolver().

◆ d_null_space

std::vector<double> AMP::Solver::TrilinosMLSolver::d_null_space

private

Definition at line 224 of file TrilinosMLSolver.h.

◆ d_pFunctionScaling

std::shared_ptr<AMP::LinearAlgebra::Vector> AMP::Solver::SolverStrategy::d_pFunctionScaling

protectedinherited

Definition at line 314 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getFunctionScaling(), and AMP::Solver::SolverStrategy::setComponentScalings().

◆ d_pNestedSolver

std::shared_ptr<AMP::Solver::SolverStrategy> AMP::Solver::SolverStrategy::d_pNestedSolver = nullptr

protectedinherited

nested solver used by this solver

Definition at line 319 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getNestedSolver(), and AMP::Solver::SolverStrategy::setNestedSolver().

◆ d_pOperator

std::shared_ptr<AMP::Operator::Operator> AMP::Solver::SolverStrategy::d_pOperator = nullptr

protectedinherited

Definition at line 316 of file SolverStrategy.h.

◆ d_pSolutionScaling

std::shared_ptr<AMP::LinearAlgebra::Vector> AMP::Solver::SolverStrategy::d_pSolutionScaling

protectedinherited

Definition at line 313 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::getSolutionScaling(), and AMP::Solver::SolverStrategy::setComponentScalings().

◆ d_sName

std::string AMP::Solver::SolverStrategy::d_sName

protectedinherited

Definition at line 278 of file SolverStrategy.h.

◆ d_writer

std::shared_ptr<AMP::IO::Writer> AMP::Solver::SolverStrategy::d_writer = nullptr

protectedinherited

Definition at line 321 of file SolverStrategy.h.

Referenced by AMP::Solver::SolverStrategy::registerWriter().

◆ d_x_values

std::vector<double> AMP::Solver::TrilinosMLSolver::d_x_values

private

Definition at line 221 of file TrilinosMLSolver.h.

◆ d_y_values

std::vector<double> AMP::Solver::TrilinosMLSolver::d_y_values

private

Definition at line 222 of file TrilinosMLSolver.h.

◆ d_z_values

std::vector<double> AMP::Solver::TrilinosMLSolver::d_z_values

private

Definition at line 223 of file TrilinosMLSolver.h.

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

src/solvers/trilinos/ml/TrilinosMLSolver.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Private Attributes

Detailed Description

Member Typedef Documentation

◆ shared_ptr

Member Enumeration Documentation

◆ SolverStatus

Constructor & Destructor Documentation

◆ TrilinosMLSolver() [1/2]

◆ TrilinosMLSolver() [2/2]

◆ ~TrilinosMLSolver()

Member Function Documentation

◆ apply()

◆ buildML()

◆ checkStoppingCriteria()

◆ computeCoordinates()

◆ computeNullSpace()

◆ convertMLoptionsToTeuchosParameterList()

◆ createSolver()

◆ getAbsoluteTolerance()

◆ getBaseFromInput()

◆ getConverged()

◆ getConvergenceStatus()

◆ getConvergenceStatusString()

◆ getDebugPrintInfoLevel()

◆ getExecutionSpace()

◆ getFromInput()

◆ getFunctionScaling()

◆ getInitialResidual()

◆ getIterationHistory()

◆ getIterations()

◆ getMaxIterations()

◆ getMLSolver()

◆ getNestedSolver()

◆ getOperator()

◆ getRelativeTolerance()

◆ getResidualNorm()

◆ getSolutionScaling()

◆ getTotalNumberOfIterations()

◆ initialize()

◆ print()

◆ printConvergenceStatus()

◆ printStatistics()

◆ registerOperator()

◆ registerWriter()

◆ reset()

◆ resetOperator()

◆ residual()

◆ reSolveWithLU()

◆ setAbsoluteTolerance()

◆ setComponentScalings()

◆ setDebugPrintInfoLevel()

◆ setExecutionSpace()

◆ setInitialGuess()

◆ setIsNestedSolver()

◆ setMaxIterations()

◆ setNestedSolver()

◆ setRelativeTolerance()

◆ setZeroInitialGuess()

◆ statusToString()

◆ type()

Member Data Documentation

◆ d_bComputeResidual

◆ d_bCreationPhase

◆ d_bIsNestedSolver

◆ d_bRobustMode

◆ d_bUseEpetra

◆ d_bUseZeroInitialGuess

◆ d_comm

◆ d_ConvergenceStatus

◆ d_dAbsoluteTolerance

◆ d_db

◆ d_dInitialResidual

◆ d_dRelativeTolerance

◆ d_dResidualNorm