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LUSolver.h
// Copyright (C) 2007-2010 Garth N. Wells
//
// This file is part of DOLFIN.
//
// DOLFIN is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// DOLFIN is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
#ifndef __LU_SOLVER_H
#define __LU_SOLVER_H
#include <string>
#include <memory>
#include "GenericLinearSolver.h"
#include <dolfin/common/MPI.h>
namespace dolfin
{
// Forward declarations
class GenericLinearOperator;
class GenericVector;
class LUSolver : public GenericLinearSolver
{
public:
LUSolver(MPI_Comm comm, std::string method= "default");
LUSolver(std::string method= "default");
LUSolver(MPI_Comm comm,
std::shared_ptr<const GenericLinearOperator> A,
std::string method="default");
LUSolver(std::shared_ptr<const GenericLinearOperator> A,
std::string method="default");
~LUSolver();
void set_operator(std::shared_ptr<const GenericLinearOperator> A);
std::size_t solve(GenericVector& x, const GenericVector& b);
std::size_t solve(const GenericLinearOperator& A, GenericVector& x,
const GenericVector& b);
static Parameters default_parameters()
{
Parameters p("lu_solver");
p.add("report", true);
p.add("verbose", false);
p.add("symmetric", false);
return p;
}
std::string parameter_type() const
{ return "lu_solver"; }
virtual void update_parameters(const Parameters& parameters)
{
this->parameters.update(parameters);
solver->parameters.update(parameters);
}
private:
// Initialize solver
void init(MPI_Comm comm, std::string method);
// Solver
std::shared_ptr<GenericLinearSolver> solver;
};
}
#endif
dolfin::GenericLinearOperator
Definition GenericLinearOperator.h:43
dolfin::GenericLinearSolver
This class provides a general solver for linear systems Ax = b.
Definition GenericLinearSolver.h:38
dolfin::GenericVector
This class defines a common interface for vectors.
Definition GenericVector.h:48
dolfin::LUSolver::default_parameters
static Parameters default_parameters()
Default parameter values.
Definition LUSolver.h:68
dolfin::LUSolver::set_operator
void set_operator(std::shared_ptr< const GenericLinearOperator > A)
Set operator (matrix).
Definition LUSolver.cpp:60
dolfin::LUSolver::parameter_type
std::string parameter_type() const
Return parameter type: "krylov_solver" or "lu_solver".
Definition LUSolver.h:78
dolfin::LUSolver::solve
std::size_t solve(GenericVector &x, const GenericVector &b)
Solve linear system Ax = b.
Definition LUSolver.cpp:67
dolfin::LUSolver::update_parameters
virtual void update_parameters(const Parameters &parameters)
Definition LUSolver.h:83
dolfin::LUSolver::LUSolver
LUSolver(MPI_Comm comm, std::string method="default")
Constructor.
Definition LUSolver.cpp:28
dolfin::LUSolver::~LUSolver
~LUSolver()
Destructor.
Definition LUSolver.cpp:55
dolfin::Parameters
Definition Parameters.h:95
dolfin::Parameters::update
void update(const Parameters &parameters)
Update parameters with another set of parameters.
Definition Parameters.cpp:245
dolfin::Parameters::add
void add(std::string key)
Definition Parameters.h:128
dolfin::Variable::parameters
Parameters parameters
Parameters.
Definition Variable.h:74
dolfin
Definition adapt.h:30
dolfin::init
void init(int argc, char *argv[])
Definition init.cpp:27