LinearSolverIstl.hpp

Go to the documentation of this file.

/*
  Copyright 2012 SINTEF ICT, Applied Mathematics.

  This file is part of the Open Porous Media project (OPM).

  OPM is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  OPM 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef OPM_LINEARSOLVERISTL_HEADER_INCLUDED
#define OPM_LINEARSOLVERISTL_HEADER_INCLUDED


#include <opm/core/linalg/LinearSolverInterface.hpp>
#include <opm/core/utility/parameters/ParameterGroup.hpp>
#include <string>
#include <boost/any.hpp>

namespace Opm
{

    class LinearSolverIstl : public LinearSolverInterface
    {
    public:
        LinearSolverIstl();

        LinearSolverIstl(const parameter::ParameterGroup& param);

        virtual ~LinearSolverIstl();

        using LinearSolverInterface::solve;

        virtual LinearSolverReport solve(const int size,
                                         const int nonzeros,
                                         const int* ia,
                                         const int* ja,
                                         const double* sa,
                                         const double* rhs,
                                         double* solution,
                                         const boost::any& comm=boost::any()) const;

        virtual void setTolerance(const double tol);

        virtual double getTolerance() const;

    private:
        template<class O, class S, class C>
        LinearSolverReport solveSystem(O& opA, double* solution, const double *rhs,
                                       S& sp, const C& comm, int maxit) const;

        double linsolver_residual_tolerance_;
        int linsolver_verbosity_;
        enum LinsolverType { CG_ILU0 = 0, CG_AMG = 1, BiCGStab_ILU0 = 2, FastAMG=3, KAMG=4 };
        LinsolverType linsolver_type_;
        bool linsolver_save_system_;
        std::string linsolver_save_filename_;
        int linsolver_max_iterations_;
        int linsolver_smooth_steps_;
        double linsolver_prolongate_factor_;

    };


} // namespace Opm



#endif // OPM_LINEARSOLVERISTL_HEADER_INCLUDED