IFPACK Development
Ifpack_METISReordering.h
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00042 
00043 #ifndef IFPACK_METISREORDERING_H
00044 #define IFPACK_METISREORDERING_H
00045 
00046 #include "Ifpack_ConfigDefs.h"
00047 #include "Ifpack_Reordering.h"
00048 #include "Epetra_RowMatrix.h"
00049 #include "Teuchos_ParameterList.hpp"
00050 #include "Teuchos_RefCountPtr.hpp"
00051 
00052 class Epetra_Comm;
00053 class Ifpack_Graph;
00054 class Epetra_Map;
00055 class Epetra_BlockMap;
00056 class Epetra_Import;
00057 
00059 
00060 class Ifpack_METISReordering : public Ifpack_Reordering {
00061 
00062 public:
00063 
00065   Ifpack_METISReordering();
00066 
00068   virtual ~Ifpack_METISReordering() {};
00069 
00071   virtual int SetParameter(const string Name, const int Value)
00072   {
00073     if (Name == "partitioner: use symmetric graph")
00074       UseSymmetricGraph_ = (bool)Value;
00075     return(0);
00076   }
00077  
00079   virtual int SetParameter(const string Name, const double Value)
00080   {
00081     return(0);
00082   };
00083 
00085   virtual int SetParameters(Teuchos::ParameterList& List)
00086   {
00087     UseSymmetricGraph_ = List.get("partitioner: use symmetric graph", 
00088                   UseSymmetricGraph_);
00089 
00090     return(0);
00091   }
00092 
00094   virtual int Compute(const Ifpack_Graph& Graph);
00095 
00097   virtual int Compute(const Epetra_RowMatrix& Matrix);
00098 
00100   virtual bool IsComputed() const
00101   {
00102     return(IsComputed_);
00103   }
00104 
00106   virtual int Reorder(const int i) const;
00107 
00109   virtual int InvReorder(const int i) const;
00110 
00112   virtual int P(const Epetra_MultiVector& Xorig,
00113         Epetra_MultiVector& X) const;
00114 
00116   virtual int Pinv(const Epetra_MultiVector& Xorig,
00117            Epetra_MultiVector& X) const;
00118 
00120   virtual ostream& Print(std::ostream& os) const;
00121 
00122 private:
00124   bool UseSymmetricGraph_;
00126   int NumMyRows_;
00128   bool IsComputed_;
00130   std::vector<int> Reorder_;
00132   std::vector<int> InvReorder_;
00133 
00134 }; // class Ifpack_METISReordering
00135 
00136 #endif // IFPACK_METISREORDERING_H
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