// ============================================================================
// ==                                                                        ==
// == AMDiS - Adaptive multidimensional simulations                          ==
// ==                                                                        ==
// ==  http://www.amdis-fem.org                                              ==
// ==                                                                        ==
// ============================================================================
//
// Software License for AMDiS
//
// Copyright (c) 2010 Dresden University of Technology 
// All rights reserved.
// Authors: Simon Vey, Thomas Witkowski et al.
//
// This file is part of AMDiS
//
// See also license.opensource.txt in the distribution.



/** \file ZoltanPartitioner.h */

#ifndef AMDIS_ZOLTAN_PARTITIONER_H
#define AMDIS_ZOLTAN_PARTITIONER_H

#include <zoltan_cpp.h>
#include <set>
#include "AMDiS_fwd.h"
#include "parallel/MeshPartitioner.h"

namespace AMDiS {

  using namespace std;

  class ZoltanPartitioner : public MeshPartitioner
  {
  public:
    ZoltanPartitioner(MPI::Intracomm *comm);

    ~ZoltanPartitioner() {}
      
    /// \ref MeshPartitioner::partition
    bool partition(map<int, double> &elemWeights, PartitionMode mode = INITIAL);

    /// \ref MeshPartitioner::getPartitionMap
    void getPartitionMap(map<int, int> &partitionMap);

  protected:
    Zoltan zoltan;
  };


  class ZoltanFunctions
  {
  public:
    static int getNumObj(void *data, int *ierr);   

    static void getObjectList(void *data, 
			      int sizeGid, 
			      int sizeLid,
			      ZOLTAN_ID_PTR globalId, 
			      ZOLTAN_ID_PTR localId,
			      int wgt_dim, 
			      float *obj_wgts, 
			      int *ierr);

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

    static void getGeomMulti(void *data, 
			     int num_gid_entries, 
			     int num_lid_entries, 
			     int num_obj, 
			     ZOLTAN_ID_PTR global_ids, 
			     ZOLTAN_ID_PTR local_ids, 
			     int num_dim, 
			     double *geom_vec, 
			     int *ierr); 
  };

}

#endif