BelosBottomSolver< Level > Class Template Reference

Interface to Belos solvers of the Trilinos package. More...

#include <BelosBottomSolver.h>

Inheritance diagram for BelosBottomSolver< Level >:

Collaboration diagram for BelosBottomSolver< Level >:

Public Types
typedef amr::matrix_t	matrix_t
typedef amr::vector_t	vector_t
typedef amr::scalar_t	scalar_t
typedef amr::multivector_t	mv_t
typedef amr::operator_t	op_t
typedef amr::local_ordinal_t	lo_t
typedef amr::global_ordinal_t	go_t
typedef amr::node_t	node_t
typedef Belos::SolverManager < scalar_t, mv_t, op_t >	solver_t
typedef Belos::LinearProblem < scalar_t, mv_t, op_t >	problem_t
typedef AmrPreconditioner < matrix_t, Level >	prec_t

Public Member Functions
	BelosBottomSolver (std::string solvertype="Pseudoblock CG", const std::shared_ptr< prec_t > &prec_p=nullptr)
void	solve (const Teuchos::RCP< mv_t > &x, const Teuchos::RCP< mv_t > &b)
void	setOperator (const Teuchos::RCP< matrix_t > &A, Level *level_p=nullptr)
std::size_t	getNumIters ()
Public Member Functions inherited from BottomSolver< Teuchos::RCP< amr::matrix_t >, Teuchos::RCP< amr::multivector_t >, Level >
	BottomSolver ()
virtual	~BottomSolver ()
virtual void	solve (const Teuchos::RCP< amr::multivector_t > &x, const Teuchos::RCP< amr::multivector_t > &b)=0
virtual void	setOperator (const Teuchos::RCP< amr::matrix_t > &A, Level *level_p=nullptr)=0
bool	hasOperator () const

Private Member Functions
void	initSolver_m (std::string solvertype)

Private Attributes
Teuchos::RCP< problem_t >	problem_mp
	represents linear problem More...
Teuchos::RCP < Teuchos::ParameterList >	params_mp
	parameter list of solver More...
Teuchos::RCP< solver_t >	solver_mp
	solver instance More...
std::shared_ptr< prec_t >	prec_mp
	preconditioner More...
Teuchos::RCP< matrix_t >	A_mp
	copy of matrix (has to be positive definite) More...
scalar_t	reltol_m
	relative tolerance More...
int	maxiter_m
	allowed number of steps for iterative solvers More...

Additional Inherited Members
Protected Attributes inherited from BottomSolver< Teuchos::RCP< amr::matrix_t >, Teuchos::RCP< amr::multivector_t >, Level >
bool	isInitialized_m

Detailed Description

template<class Level>
class BelosBottomSolver< Level >

Interface to Belos solvers of the Trilinos package.

Definition at line 17 of file BelosBottomSolver.h.

Member Typedef Documentation

template<class Level >

typedef amr::global_ordinal_t BelosBottomSolver< Level >::go_t

Definition at line 28 of file BelosBottomSolver.h.

template<class Level >

typedef amr::local_ordinal_t BelosBottomSolver< Level >::lo_t

Definition at line 27 of file BelosBottomSolver.h.

template<class Level >

typedef amr::matrix_t BelosBottomSolver< Level >::matrix_t

Definition at line 22 of file BelosBottomSolver.h.

template<class Level >

typedef amr::multivector_t BelosBottomSolver< Level >::mv_t

Definition at line 25 of file BelosBottomSolver.h.

template<class Level >

typedef amr::node_t BelosBottomSolver< Level >::node_t

Definition at line 29 of file BelosBottomSolver.h.

template<class Level >

typedef amr::operator_t BelosBottomSolver< Level >::op_t

Definition at line 26 of file BelosBottomSolver.h.

template<class Level >

typedef AmrPreconditioner<matrix_t, Level> BelosBottomSolver< Level >::prec_t

Definition at line 34 of file BelosBottomSolver.h.

template<class Level >

typedef Belos::LinearProblem<scalar_t, mv_t, op_t> BelosBottomSolver< Level >::problem_t

Definition at line 32 of file BelosBottomSolver.h.

template<class Level >

typedef amr::scalar_t BelosBottomSolver< Level >::scalar_t

Definition at line 24 of file BelosBottomSolver.h.

template<class Level >

typedef Belos::SolverManager<scalar_t, mv_t, op_t> BelosBottomSolver< Level >::solver_t

Definition at line 31 of file BelosBottomSolver.h.

template<class Level >

typedef amr::vector_t BelosBottomSolver< Level >::vector_t

Definition at line 23 of file BelosBottomSolver.h.

Constructor & Destructor Documentation

template<class Level >

BelosBottomSolver< Level >::BelosBottomSolver	(	std::string	solvertype = "Pseudoblock CG",
		const std::shared_ptr< prec_t > &	prec_p = nullptr
	)

Parameters

solvertype	to use
precond	preconditioner of matrix

Definition at line 7 of file BelosBottomSolver.hpp.

References BelosBottomSolver< Level >::initSolver_m().

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Member Function Documentation

template<class Level >

std::size_t BelosBottomSolver< Level >::getNumIters ( )

virtual

Returns

the number of required iterations

Implements BottomSolver< Teuchos::RCP< amr::matrix_t >, Teuchos::RCP< amr::multivector_t >, Level >.

Definition at line 80 of file BelosBottomSolver.hpp.

template<class Level >

void BelosBottomSolver< Level >::initSolver_m ( std::string  solvertype )

private

Create a solver instance

Parameters

solvertype

to create

Definition at line 90 of file BelosBottomSolver.hpp.

Referenced by BelosBottomSolver< Level >::BelosBottomSolver().

template<class Level >

void BelosBottomSolver< Level >::setOperator	(	const Teuchos::RCP< matrix_t > &	A,
		Level *	level_p = nullptr
	)

Definition at line 51 of file BelosBottomSolver.hpp.

References IpplTimings::getTimer(), IpplTimings::startTimer(), and IpplTimings::stopTimer().

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template<class Level >

void BelosBottomSolver< Level >::solve	(	const Teuchos::RCP< mv_t > &	x,
		const Teuchos::RCP< mv_t > &	b
	)

Definition at line 23 of file BelosBottomSolver.hpp.

References endl().

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Member Data Documentation

template<class Level >

Teuchos::RCP<matrix_t> BelosBottomSolver< Level >::A_mp

private

copy of matrix (has to be positive definite)

Definition at line 65 of file BelosBottomSolver.h.

template<class Level >

int BelosBottomSolver< Level >::maxiter_m

private

allowed number of steps for iterative solvers

Definition at line 70 of file BelosBottomSolver.h.

template<class Level >

Teuchos::RCP<Teuchos::ParameterList> BelosBottomSolver< Level >::params_mp

private

parameter list of solver

Definition at line 62 of file BelosBottomSolver.h.

template<class Level >

std::shared_ptr<prec_t> BelosBottomSolver< Level >::prec_mp

private

preconditioner

Definition at line 64 of file BelosBottomSolver.h.

template<class Level >

Teuchos::RCP<problem_t> BelosBottomSolver< Level >::problem_mp

private

represents linear problem

Definition at line 61 of file BelosBottomSolver.h.

template<class Level >

scalar_t BelosBottomSolver< Level >::reltol_m

private

relative tolerance

Definition at line 67 of file BelosBottomSolver.h.

template<class Level >

Teuchos::RCP<solver_t> BelosBottomSolver< Level >::solver_mp

private

solver instance

Definition at line 63 of file BelosBottomSolver.h.

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

• src/Solvers/AMR_MG/BelosBottomSolver.h
• src/Solvers/AMR_MG/BelosBottomSolver.hpp