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Ifpack_Reordering.h
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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_REORDERING_H
00031 #define IFPACK_REORDERING_H
00032 
00033 #include "Ifpack_ConfigDefs.h"
00034 
00035 namespace Teuchos {
00036   class ParameterList;
00037 }
00038 class Epetra_MultiVector;
00039 class Ifpack_Graph;
00040 class Epetra_RowMatrix;
00041 
00043 
00088 class Ifpack_Reordering {
00089 
00090 public:
00091 
00093   virtual ~Ifpack_Reordering() {};
00094   
00096   virtual int SetParameter(const string Name, const int Value) = 0;
00097  
00099   virtual int SetParameter(const string Name, const double Value) = 0;
00100 
00102   virtual int SetParameters(Teuchos::ParameterList& List) = 0;
00103 
00105   virtual int Compute(const Ifpack_Graph& Graph) = 0;
00106 
00108   virtual int Compute(const Epetra_RowMatrix& Matrix) = 0;
00109 
00111   virtual bool IsComputed() const = 0;
00112 
00114   virtual int Reorder(const int i) const = 0;
00115 
00117   virtual int InvReorder(const int i) const = 0;
00118 
00120   virtual int P(const Epetra_MultiVector& Xorig,
00121     Epetra_MultiVector& X) const = 0;
00122 
00124   virtual int Pinv(const Epetra_MultiVector& Xorig,
00125        Epetra_MultiVector& X) const = 0;
00126 
00128   virtual ostream& Print(std::ostream& os) const = 0;
00129 
00130 }; 
00131 
00132 inline ostream& operator<<(ostream& os, const Ifpack_Reordering& obj)
00133 {
00134   return(obj.Print(os));
00135 }
00136 
00137 #endif
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