EpetraExt_MapColoring.h

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00001 //@HEADER
00002 // ***********************************************************************
00003 // 
00004 //     EpetraExt: Epetra Extended - Linear Algebra Services Package
00005 //                 Copyright (2001) 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 #ifndef EpetraExt_CRSGRAPH_MAPCOLORING_H
00030 #define EpetraExt_CRSGRAPH_MAPCOLORING_H
00031 
00032 #include <EpetraExt_Transform.h>
00033 
00034 class Epetra_CrsGraph;
00035 class Epetra_MapColoring;
00036 
00037 namespace EpetraExt {
00038 
00040 
00046 class CrsGraph_MapColoring : public StructuralTransform<Epetra_CrsGraph,Epetra_MapColoring>
00047 {
00048 
00049  public:
00050 
00051   enum ColoringAlgorithm{ GREEDY, LUBY, JONES_PLASSMAN, PSEUDO_PARALLEL  };
00052 
00054 
00056   ~CrsGraph_MapColoring() {}
00057 
00059 
00061   CrsGraph_MapColoring( ColoringAlgorithm algo = GREEDY,
00062                         int reordering = 0,
00063                         bool distance1 = false,
00064                         int verbosity = 0 )
00065   : algo_(algo),
00066     reordering_(reordering),
00067     distance1_(distance1),
00068     verbosity_(verbosity)
00069   {}
00070 
00072 
00074   CrsGraph_MapColoring::NewTypeRef operator()( CrsGraph_MapColoring::OriginalTypeRef orig );
00075 
00076  private:
00077 
00078 
00079   const ColoringAlgorithm algo_;
00080 
00081   const int reordering_;
00082   const bool distance1_;
00083 
00084   const int verbosity_;
00085 
00086 };
00087 
00088 } //namespace EpetraExt
00089 
00090 #endif //EpetraExt_CRSGRAPH_MAPCOLORING_H

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