Isorropia_EpetraPartitioner2D.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
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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************************************************************************
*/
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#ifdef ISORROPIA_2D
#ifndef _Isorropia_EpetraPartitioner2D_hpp_
#define _Isorropia_EpetraPartitioner2D_hpp_

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

#include <Isorropia_EpetraCostDescriber.hpp>
#include <Isorropia_EpetraOperator.hpp>
#include <Isorropia_Partitioner2D.hpp>

#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 Partitioner2D : virtual public Isorropia::Partitioner2D, virtual public Isorropia::Epetra::Operator  {
public:
  Partitioner2D(Teuchos::RefCountPtr<const Epetra_CrsGraph> input_graph,
              const Teuchos::ParameterList& paramlist,
              bool compute_partitioning_now=true);

  Partitioner2D(Teuchos::RefCountPtr<const Epetra_CrsGraph> input_graph,
              Teuchos::RefCountPtr<CostDescriber> costs,
              const Teuchos::ParameterList& paramlist,
              bool compute_partitioning_now=true);

  Partitioner2D(Teuchos::RefCountPtr<const Epetra_RowMatrix> input_matrix,
              const Teuchos::ParameterList& paramlist,
              bool compute_partitioning_now=true);

  Partitioner2D(Teuchos::RefCountPtr<const Epetra_RowMatrix> input_matrix,
              Teuchos::RefCountPtr<CostDescriber> costs,
              const Teuchos::ParameterList& paramlist,
              bool compute_partitioning_now=true);

  virtual ~Partitioner2D();

  void partition(bool force_repartitioning=false);

  virtual void compute(bool forceRecomputing=false);

  //  /** An internal method which determines whether the
  //      method compute_partitioning() has already been
  //      called on this class instance.
  //  */
  //  bool partitioning_already_computed() const __deprecated;

  //  /** An internal method which returns the new partition ID for a given element that
  //     resided locally in the old partitioning.
  //  */
  //  int newPartitionNumber(int myElem) const __deprecated;

  int numElemsInPartition(int partition) const;

  void elemsInPartition(int partition, int* elementList, int len) const;

  Teuchos::RefCountPtr<Epetra_Map> createNewMap();

  int createNewMaps(Teuchos::RefCountPtr<Epetra_Map> domainMap, 
        Teuchos::RefCountPtr<Epetra_Map> rangeMap);

  int partitionVectors();


};//class Partitioner2D

}//namespace Epetra
}//namespace Isorropia

#endif //HAVE_EPETRA

#endif

#endif //ISORROPIA_2D