preconditioner.C

Go to the documentation of this file.

// The libMesh Finite Element Library.
// Copyright (C) 2002-2014 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner

// This library 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 2.1 of the License, or (at your option) any later version.

// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA



// C++ includes

// Local Includes
#include "libmesh/auto_ptr.h"
#include "libmesh/preconditioner.h"
#include "libmesh/eigen_preconditioner.h"
#include "libmesh/petsc_preconditioner.h"
#include "libmesh/trilinos_preconditioner.h"



namespace libMesh
{

//------------------------------------------------------------------
// Preconditioner members
template <typename T>
Preconditioner<T> *
Preconditioner<T>::build(const libMesh::Parallel::Communicator &comm,
                         const SolverPackage solver_package)
{
  // Build the appropriate solver
  switch (solver_package)
    {

#ifdef LIBMESH_HAVE_PETSC
    case PETSC_SOLVERS:
      {
        return new PetscPreconditioner<T>(comm);
      }
#endif

#ifdef LIBMESH_HAVE_TRILINOS
    case TRILINOS_SOLVERS:
      return new TrilinosPreconditioner<T>(comm);
#endif

#ifdef LIBMESH_HAVE_EIGEN
    case EIGEN_SOLVERS:
      return new EigenPreconditioner<T>(comm);
#endif

    default:
      libmesh_error_msg("ERROR:  Unrecognized solver package: " << solver_package);
    }

  return NULL;
}



//------------------------------------------------------------------
// Explicit instantiations
template class Preconditioner<Number>;

} // namespace libMesh