Isorropia_EpetraZoltanLib.hpp

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/*
************************************************************************

              Isorropia: Partitioning and Load Balancing Package
                Copyright (2006) Sandia Corporation

Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
license for use of this work by or on behalf of the U.S. Government.

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
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************************************************************************
*/
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#ifndef _Isorropia_EpetraZoltanLib_hpp_
#define _Isorropia_EpetraZoltanLib_hpp_

#include <Isorropia_ConfigDefs.hpp>
#include <Teuchos_RCP.hpp>
#include <Teuchos_ParameterList.hpp>

#include <Isorropia_EpetraCostDescriber.hpp>
#include <Isorropia_EpetraLibrary.hpp>

#include <QueryObject.hpp>
#include <zoltan_cpp.h>

#ifdef HAVE_EPETRA
class Epetra_Map;
class Epetra_BlockMap;
class Epetra_Import;
class Epetra_Vector;
class Epetra_MultiVector;
class Epetra_CrsGraph;
class Epetra_CrsMatrix;
class Epetra_RowMatrix;
class Epetra_LinearProblem;

namespace Isorropia {

namespace Epetra {
  class CostDescriber;


class ZoltanLibClass : public Library {
public:

  ZoltanLibClass(Teuchos::RCP<const Epetra_CrsGraph> input_graph, int inputType=unspecified_input_);
  ZoltanLibClass(Teuchos::RCP<const Epetra_CrsGraph> input_graph,
      Teuchos::RCP<CostDescriber> costs, int inputType=unspecified_input_);
  ZoltanLibClass(Teuchos::RCP<const Epetra_RowMatrix> input_matrix, int inputType=unspecified_input_);
  ZoltanLibClass(Teuchos::RCP<const Epetra_RowMatrix> input_matrix,
      Teuchos::RCP<CostDescriber> costs, int inputType=unspecified_input_);
  ZoltanLibClass(Teuchos::RCP<const Epetra_MultiVector> input_coords, int inputType=unspecified_input_);
  ZoltanLibClass(Teuchos::RCP<const Epetra_MultiVector> input_coords,
            Teuchos::RCP<const Epetra_MultiVector> weights, int inputType=unspecified_input_);

  virtual int
  repartition(Teuchos::ParameterList& paramlist,
        std::vector<int>& newPartitions,
        int& exportsSize,
        std::vector<int>& imports);

  virtual int
  color(Teuchos::ParameterList& paramlist,
  std::vector<int>& colorAssignment);

  virtual int
  order(Teuchos::ParameterList& paramlist,
  std::vector<int>& orderAssignment);

protected:
  virtual int precompute();
  virtual int postcompute();
  void computeCost();
  void preCheckPartition();

  void setParameterList(Teuchos::ParameterList& zoltanParamList);

private:
  Teuchos::ParameterList zoltanParamList_;
  std::string partMethod_; // stores partitioning method used, perhaps should be in EpetraLibrary?
  Zoltan *zz_;
  Teuchos::RCP<ZoltanLib::QueryObject> queryObject_;
  int num_obj_;

};//class ZoltanLibClass

}//namespace Epetra
}//namespace Isorropia

#endif //HAVE_EPETRA

#endif