Ifpack_UserPartitioner.h

00001 /*@HEADER
00002 // ***********************************************************************
00003 //
00004 //       Ifpack: Object-Oriented Algebraic Preconditioner Package
00005 //                 Copyright (2002) Sandia Corporation
00006 //
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 //
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov)
00025 //
00026 // ***********************************************************************
00027 //@HEADER
00028 */
00029 
00030 #ifndef IFPACK_USERPARTITIONER_H
00031 #define IFPACK_USERPARTITIONER_H
00032 
00033 #include "Ifpack_ConfigDefs.h"
00034 #include "Ifpack_Partitioner.h"
00035 #include "Ifpack_OverlappingPartitioner.h"
00036 #include "Teuchos_ParameterList.hpp"
00037 class Epetra_Comm;
00038 class Ifpack_Graph;
00039 class Epetra_Map;
00040 class Epetra_BlockMap;
00041 class Epetra_Import;
00042 
00044 
00045 class Ifpack_UserPartitioner : public Ifpack_OverlappingPartitioner {
00046 
00047 public:
00048 
00050   Ifpack_UserPartitioner(const Ifpack_Graph* Graph) :
00051     Ifpack_OverlappingPartitioner(Graph),
00052     Map_(0)
00053   {}
00054 
00056   virtual ~Ifpack_UserPartitioner() {};
00057 
00059   int SetPartitionParameters(Teuchos::ParameterList& List)
00060   {
00061     Map_ = List.get("partitioner: map",Map_);
00062     if (Map_ == 0)
00063       IFPACK_CHK_ERR(-1);
00064 
00065     return(0);
00066   }
00067 
00069   int ComputePartitions();
00070 
00071 private:
00072   int* Map_;
00073 };
00074 
00075 #endif // IFPACK_USERPARTITIONER_H

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