Isorropia_Redistributor.hpp

//@HEADER
/*
************************************************************************

              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
USA
Questions? Contact Alan Williams (william@sandia.gov)
                or Erik Boman    (egboman@sandia.gov)

************************************************************************
*/
//@HEADER

#ifndef _Isorropia_Redistributor_hpp_
#define _Isorropia_Redistributor_hpp_

#include <Isorropia_configdefs.hpp>
#include <Teuchos_RefCountPtr.hpp>
#include <Teuchos_ParameterList.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;
class Epetra_SrcDistObject;
class Epetra_DistObject;

namespace Isorropia {
  class Partitioner;

class Redistributor {
public:
  Redistributor(Teuchos::RefCountPtr<Partitioner> partitioner);

  virtual ~Redistributor();

  void redistribute(const Epetra_SrcDistObject& src,
        Epetra_DistObject& target);

  Teuchos::RefCountPtr<Epetra_CrsGraph>
     redistribute(const Epetra_CrsGraph& input_graph);

  Teuchos::RefCountPtr<Epetra_CrsMatrix>
     redistribute(const Epetra_CrsMatrix& input_matrix);

  Teuchos::RefCountPtr<Epetra_CrsMatrix>
     redistribute(const Epetra_RowMatrix& input_matrix);

  Teuchos::RefCountPtr<Epetra_MultiVector>
     redistribute(const Epetra_MultiVector& input_vector);

private:
  void create_importer(const Epetra_BlockMap& src_map);

  Teuchos::RefCountPtr<Partitioner> partitioner_;
  Teuchos::RefCountPtr<Epetra_Import> importer_;
  Teuchos::RefCountPtr<Epetra_Map> target_map_;

  bool created_importer_;

}; //class Redistributor

}//namespace Isorropia

#endif //HAVE_EPETRA

#endif