MueLu_ZoltanInterface_decl.hpp

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#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 = DefaultLocalOrdinal,
            class GlobalOrdinal = DefaultGlobalOrdinal,
            class Node = DefaultNode>
  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