Teko_BlockingEpetra.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_BlockingEpetra_hpp__
#define __Teko_BlockingEpetra_hpp__

#include "Teuchos_RCP.hpp"

// include basic Epetra information
#include "Epetra_Map.h"
#include "Epetra_Comm.h"
#include "Epetra_CrsMatrix.h"
#include "Epetra_Vector.h"
#include "Epetra_MultiVector.h"
#include "Epetra_Export.h"
#include "Epetra_Import.h"
#include "Epetra_IntVector.h"

#include <vector>

namespace Teko {
namespace Epetra {
namespace Blocking {

typedef std::pair<Teuchos::RCP<Epetra_Map>,Teuchos::RCP<Epetra_Map> > MapPair;
typedef std::pair<Teuchos::RCP<Epetra_Import>,Teuchos::RCP<Epetra_Export> > ImExPair;

const MapPair buildSubMap(const std::vector< int > & gid, const Epetra_Comm &comm);

const ImExPair buildExportImport(const Epetra_Map & baseMap,const MapPair & maps);

void many2one(Epetra_MultiVector & one, const std::vector<Teuchos::RCP<const Epetra_MultiVector> > & many,
                                        const std::vector<Teuchos::RCP<Epetra_Export> > & subExport);

void one2many(std::vector<Teuchos::RCP<Epetra_MultiVector> > & many, const Epetra_MultiVector & single,
                                                            const std::vector<Teuchos::RCP<Epetra_Import> > & subImport);

void buildSubVectors(const std::vector<MapPair> & maps,
                     std::vector<Teuchos::RCP<Epetra_MultiVector> > & vectors,int count);

Teuchos::RCP<Epetra_IntVector> getSubBlockColumnGIDs(const Epetra_CrsMatrix & A,const MapPair & mapPair);

Teuchos::RCP<Epetra_CrsMatrix> buildSubBlock(int i,int j,const Epetra_CrsMatrix & A,const std::vector<MapPair> & subMaps);

void rebuildSubBlock(int i,int j,const Epetra_CrsMatrix & A,const std::vector<MapPair> & subMaps,Epetra_CrsMatrix & mat);

} // end Blocking
} // end Epetra
} // end Teko

#endif