EpetraExt_SymmRCM_CrsGraph.h

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#ifndef EpetraExt_CRSGRAPH_SYMMRCM_H
#define EpetraExt_CRSGRAPH_SYMMRCM_H
 
#include <vector>
 
#include <EpetraExt_Transform.h>
 
class Epetra_Map;
class Epetra_CrsGraph;
 
namespace EpetraExt {

struct CrsGraph_SymmRCM : public StructuralSameTypeTransform<Epetra_CrsGraph> {
 
 public:

  ~CrsGraph_SymmRCM();

  CrsGraph_SymmRCM( bool BruteForce = false, int testLeafWidth = 5 )
  : bruteForce_(BruteForce),
    testLeafWidth_(testLeafWidth),
    RCMMap_(0),
    RCMColMap_(0)
  {}

  NewTypeRef operator()( OriginalTypeRef orig );
 
 private:
 
  Epetra_Map * RCMMap_;
  Epetra_Map * RCMColMap_;
  const int testLeafWidth_;
  const bool bruteForce_;
 
  class BFT {
    
   public:
 
    BFT( const std::vector< std::vector<int> > & adjlist,
          int root,
          int max_width,
          bool & failed );
 
     int Width() { return width_; }
     int Depth() { return depth_; }
 
     void NonNeighborLeaves( std::vector<int> & leaves,
                             const std::vector< std::vector<int> > & adjlist,
                             int count );
     void ReverseVector( std::vector<int> & ordered );
 
   private:
 
     bool failed_;
     int width_;
     int depth_;
     int nodes_;
 
     std::vector< std::vector<int> > levelSets_;
  };
 
};
 
} //namespace EpetraExt
 
#endif //EpetraExt_CRSGRAPH_SYMMRCM_H