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Teko_BlockingEpetra.hpp
00001 /*
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00003 // 
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00005 // 
00006 //      Teko: A package for block and physics based preconditioning
00007 //                  Copyright 2010 Sandia Corporation 
00008 //  
00009 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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00013 // modification, are permitted provided that the following conditions are
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00016 // 1. Redistributions of source code must retain the above copyright
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00019 // 2. Redistributions in binary form must reproduce the above copyright
00020 // notice, this list of conditions and the following disclaimer in the
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00024 // contributors may be used to endorse or promote products derived from
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00045 */
00046 
00047 #ifndef __Teko_BlockingEpetra_hpp__
00048 #define __Teko_BlockingEpetra_hpp__
00049 
00050 #include "Teuchos_RCP.hpp"
00051 
00052 // include basic Epetra information
00053 #include "Epetra_Map.h"
00054 #include "Epetra_Comm.h"
00055 #include "Epetra_CrsMatrix.h"
00056 #include "Epetra_Vector.h"
00057 #include "Epetra_MultiVector.h"
00058 #include "Epetra_Export.h"
00059 #include "Epetra_Import.h"
00060 #include "Epetra_IntVector.h"
00061 
00062 #include <vector>
00063 
00064 namespace Teko {
00065 namespace Epetra {
00066 namespace Blocking {
00067 
00068 typedef std::pair<Teuchos::RCP<Epetra_Map>,Teuchos::RCP<Epetra_Map> > MapPair;
00069 typedef std::pair<Teuchos::RCP<Epetra_Import>,Teuchos::RCP<Epetra_Export> > ImExPair;
00070 
00084 const MapPair buildSubMap(const std::vector< int > & gid, const Epetra_Comm &comm);
00085 
00095 const ImExPair buildExportImport(const Epetra_Map & baseMap,const MapPair & maps);
00096 
00106 void many2one(Epetra_MultiVector & one, const std::vector<Teuchos::RCP<const Epetra_MultiVector> > & many,
00107                                         const std::vector<Teuchos::RCP<Epetra_Export> > & subExport);
00108 
00115 void one2many(std::vector<Teuchos::RCP<Epetra_MultiVector> > & many, const Epetra_MultiVector & single,
00116                                                             const std::vector<Teuchos::RCP<Epetra_Import> > & subImport);
00117 
00125 void buildSubVectors(const std::vector<MapPair> & maps,
00126                      std::vector<Teuchos::RCP<Epetra_MultiVector> > & vectors,int count);
00127 
00133 Teuchos::RCP<Epetra_IntVector> getSubBlockColumnGIDs(const Epetra_CrsMatrix & A,const MapPair & mapPair);
00134 
00148 Teuchos::RCP<Epetra_CrsMatrix> buildSubBlock(int i,int j,const Epetra_CrsMatrix & A,const std::vector<MapPair> & subMaps);
00149 
00163 void rebuildSubBlock(int i,int j,const Epetra_CrsMatrix & A,const std::vector<MapPair> & subMaps,Epetra_CrsMatrix & mat);
00164 
00165 } // end Blocking
00166 } // end Epetra
00167 } // end Teko
00168 
00169 #endif
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