dolfin::BelosKrylovSolver Class Reference

#include <BelosKrylovSolver.h>

Inheritance diagram for dolfin::BelosKrylovSolver:

Collaboration diagram for dolfin::BelosKrylovSolver:

Public Types
typedef Tpetra::Operator< double, int, dolfin::la_index, TpetraVector::node_type >	op_type
	Tpetra operator type.
typedef Belos::LinearProblem< double, TpetraVector::vector_type, op_type >	problem_type
	Belos problem type.

Public Member Functions
	BelosKrylovSolver (std::string method="default", std::string preconditioner="default")
	BelosKrylovSolver (std::string method, std::shared_ptr< TrilinosPreconditioner > preconditioner)
	Create Krylov solver for a particular method and TrilinosPreconditioner.
	~BelosKrylovSolver ()
	Destructor.
void	set_operator (std::shared_ptr< const GenericLinearOperator > A)
	Set operator (matrix)
void	set_operators (std::shared_ptr< const GenericLinearOperator > A, std::shared_ptr< const GenericLinearOperator > P)
	Set operator (matrix) and preconditioner matrix.
const TpetraMatrix &	get_operator () const
	Get operator (matrix)
std::size_t	solve (GenericVector &x, const GenericVector &b)
	Solve linear system Ax = b and return number of iterations.
std::size_t	solve (const GenericLinearOperator &A, GenericVector &x, const GenericVector &b)
	Solve linear system Ax = b and return number of iterations.
std::string	str (bool verbose) const
	Return informal string representation (pretty-print)
std::string	parameter_type () const
	Return parameter type: "krylov_solver" or "lu_solver".
Public Member Functions inherited from dolfin::GenericLinearSolver
virtual void	update_parameters (const Parameters &parameters)
	Update solver parameters (useful for LinearSolver wrapper)
Public Member Functions inherited from dolfin::Variable
	Variable ()
	Create unnamed variable.
	Variable (const std::string name, const std::string label)
	Create variable with given name and label.
	Variable (const Variable &variable)
	Copy constructor.
virtual	~Variable ()
	Destructor.
const Variable &	operator= (const Variable &variable)
	Assignment operator.
void	rename (const std::string name, const std::string label)
	Rename variable.
std::string	name () const
	Return name.
std::string	label () const
	Return label (description)
std::size_t	id () const

Static Public Member Functions
static std::map< std::string, std::string >	methods ()
	Return a list of available solver methods.
static std::map< std::string, std::string >	preconditioners ()
	Return a list of available preconditioners.
static Parameters	default_parameters ()
	Default parameter values.

Friends
class	Ifpack2Preconditioner
class	MueluPreconditioner

Additional Inherited Members
Public Attributes inherited from dolfin::Variable
Parameters	parameters
	Parameters.
Static Protected Member Functions inherited from dolfin::GenericLinearSolver
static const GenericMatrix &	require_matrix (const GenericLinearOperator &A)
static std::shared_ptr< const GenericMatrix >	require_matrix (std::shared_ptr< const GenericLinearOperator > A)

Detailed Description

This class implements Krylov methods for linear systems of the form Ax = b. It is a wrapper for the Belos iterative solver from Trilinos

Constructor & Destructor Documentation

BelosKrylovSolver::BelosKrylovSolver	(	std::string	method = "default",
		std::string	preconditioner = "default"
	)

Create Krylov solver for a particular method and names preconditioner

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

• /home/fenics/shared/dolfin/la/BelosKrylovSolver.h
• /home/fenics/shared/dolfin/la/BelosKrylovSolver.cpp