MueLu_ZoltanInterface_decl.hpp

Go to the documentation of this file.

// @HEADER
//
// ***********************************************************************
//
//        MueLu: A package for multigrid based preconditioning
//                  Copyright 2012 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact
//                    Jonathan Hu       (jhu@sandia.gov)
//                    Andrey Prokopenko (aprokop@sandia.gov)
//                    Ray Tuminaro      (rstumin@sandia.gov)
//
// ***********************************************************************
//
// @HEADER
#ifndef MUELU_ZOLTANINTERFACE_DECL_HPP
#define MUELU_ZOLTANINTERFACE_DECL_HPP

#include "MueLu_ConfigDefs.hpp"

#if defined(HAVE_MUELU_ZOLTAN) && defined(HAVE_MPI)

#include <zoltan_cpp.h>

#include <Xpetra_Matrix.hpp>
#include <Xpetra_MultiVectorFactory.hpp>
#include <Xpetra_VectorFactory.hpp>

#include "MueLu_SingleLevelFactoryBase.hpp"
#include "MueLu_ZoltanInterface_fwd.hpp"

#include "MueLu_Level_fwd.hpp"
#include "MueLu_FactoryBase_fwd.hpp"
#include "MueLu_Utilities_fwd.hpp"

namespace MueLu {

  //FIXME: this class should not be templated
  template <class Scalar,
            class LocalOrdinal = typename Xpetra::Matrix<double>::local_ordinal_type,
            class GlobalOrdinal = typename Xpetra::Matrix<double, LocalOrdinal>::global_ordinal_type,
            class Node = typename Xpetra::Matrix<double, LocalOrdinal, GlobalOrdinal>::node_type>
  class ZoltanInterface : public SingleLevelFactoryBase {
#undef MUELU_ZOLTANINTERFACE_SHORT
#include "MueLu_UseShortNames.hpp"

  public:



    ZoltanInterface() {}

    virtual ~ZoltanInterface() { }

    RCP<const ParameterList> GetValidParameterList() const;


    void DeclareInput(Level& level) const;


    void Build(Level& level) const;




    static int GetLocalNumberOfRows(void *data, int *ierr);

    static void GetLocalNumberOfNonzeros(void *data, int NumGidEntries, int NumLidEntries, ZOLTAN_ID_PTR gids,
                                         ZOLTAN_ID_PTR lids, int wgtDim, float *weights, int *ierr);

    static int GetProblemDimension(void *data, int *ierr);


    static void GetProblemGeometry(void *data, int numGIDEntries, int numLIDEntries, int numObjectIDs,
                                   ZOLTAN_ID_PTR gids, ZOLTAN_ID_PTR lids, int dim, double *coordinates, int *ierr);


  private:

    static ArrayRCP<typename Teuchos::ScalarTraits<Scalar>::magnitudeType> coalesceCoordinates(ArrayRCP<typename Teuchos::ScalarTraits<Scalar>::magnitudeType> coord, LocalOrdinal blksize);

  };  //class ZoltanInterface

} //namespace MueLu

#define MUELU_ZOLTANINTERFACE_SHORT
#endif //if defined(HAVE_MUELU_ZOLTAN) && defined(HAVE_MPI)

#endif // MUELU_ZOLTANINTERFACE_DECL_HPP