preconditioner.C

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00001 // The libMesh Finite Element Library.
00002 // Copyright (C) 2002-2012 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
00003 
00004 // This library is free software; you can redistribute it and/or
00005 // modify it under the terms of the GNU Lesser General Public
00006 // License as published by the Free Software Foundation; either
00007 // version 2.1 of the License, or (at your option) any later version.
00008 
00009 // This library is distributed in the hope that it will be useful,
00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012 // Lesser General Public License for more details.
00013 
00014 // You should have received a copy of the GNU Lesser General Public
00015 // License along with this library; if not, write to the Free Software
00016 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00017 
00018 
00019 
00020 // C++ includes
00021 
00022 // Local Includes
00023 #include "libmesh/auto_ptr.h"
00024 #include "libmesh/preconditioner.h"
00025 #include "libmesh/petsc_preconditioner.h"
00026 #include "libmesh/trilinos_preconditioner.h"
00027 
00028 namespace libMesh
00029 {
00030 
00031 //------------------------------------------------------------------
00032 // Preconditioner members
00033 template <typename T>
00034 Preconditioner<T> *
00035 Preconditioner<T>::build(const SolverPackage solver_package)
00036 {
00037   // Build the appropriate solver
00038   switch (solver_package)
00039     {
00040 
00041 /*
00042 #ifdef LIBMESH_HAVE_LASPACK
00043     case LASPACK_SOLVERS:
00044       {
00045         AutoPtr<Preconditioner<T> > ap(new LaspackPreconditioner<T>);
00046         return ap;
00047       }
00048 #endif
00049 */
00050 
00051 #ifdef LIBMESH_HAVE_PETSC
00052     case PETSC_SOLVERS:
00053       {
00054         return new PetscPreconditioner<T>();
00055       }
00056 #endif
00057 
00058 #ifdef LIBMESH_HAVE_TRILINOS
00059     case TRILINOS_SOLVERS:
00060       return new TrilinosPreconditioner<T>();
00061 #endif
00062 
00063     default:
00064       libMesh::err << "ERROR:  Unrecognized solver package: "
00065                     << solver_package
00066                     << std::endl;
00067       libmesh_error();
00068     }
00069 
00070   return NULL;
00071 }
00072 
00073 
00074 
00075 //------------------------------------------------------------------
00076 // Explicit instantiations
00077 template class Preconditioner<Number>;
00078 
00079 } // namespace libMesh
00080 
00081 
00082
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Last modified: February 05 2013 19:54:48 UTC

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