EpetraExt_MapColoring.h

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// 
//     EpetraExt: Epetra Extended - Linear Algebra Services Package
//                 Copyright (2001) Sandia Corporation
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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#ifndef EpetraExt_CRSGRAPH_MAPCOLORING_H
#define EpetraExt_CRSGRAPH_MAPCOLORING_H

#include <EpetraExt_Transform.h>

class Epetra_CrsGraph;
class Epetra_MapColoring;

namespace EpetraExt {


class CrsGraph_MapColoring : public StructuralTransform<Epetra_CrsGraph,Epetra_MapColoring>
{

 public:

  enum ColoringAlgorithm{ GREEDY, LUBY, JONES_PLASSMAN, PSEUDO_PARALLEL  };


  ~CrsGraph_MapColoring() {}


  CrsGraph_MapColoring( ColoringAlgorithm algo = GREEDY,
                        int reordering = 0,
                        bool distance1 = false,
                        int verbosity = 0 )
  : algo_(algo),
    reordering_(reordering),
    distance1_(distance1),
    verbosity_(verbosity)
  {}


  CrsGraph_MapColoring::NewTypeRef operator()( CrsGraph_MapColoring::OriginalTypeRef orig );

 private:


  const ColoringAlgorithm algo_;

  const int reordering_;
  const bool distance1_;

  const int verbosity_;

};

} //namespace EpetraExt

#endif //EpetraExt_CRSGRAPH_MAPCOLORING_H

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