Teko_BlockingTpetra.hpp

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

#include "Teuchos_RCP.hpp"

// include basic Tpetra information
#include "Tpetra_Map.hpp"
#include "Tpetra_CrsMatrix.hpp"
#include "Tpetra_Vector.hpp"
#include "Tpetra_MultiVector.hpp"
#include "Tpetra_Export.hpp"
#include "Tpetra_Import.hpp"

#include "Teko_ConfigDefs.hpp"

#include <vector>

namespace Teko {
namespace TpetraHelpers {
namespace Blocking {

typedef std::pair<Teuchos::RCP<Tpetra::Map<LO,GO,NT> >,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > MapPair;
typedef std::pair<Teuchos::RCP<Tpetra::Import<LO,GO,NT> >,Teuchos::RCP<Tpetra::Export<LO,GO,NT> > > ImExPair;

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

const ImExPair buildExportImport(const Tpetra::Map<LO,GO,NT> & baseMap,const MapPair & maps);

void many2one(Tpetra::MultiVector<ST,LO,GO,NT> & one, const std::vector<Teuchos::RCP<const Tpetra::MultiVector<ST,LO,GO,NT> > > & many,
                                        const std::vector<Teuchos::RCP<Tpetra::Export<LO,GO,NT> > > & subExport);

void one2many(std::vector<Teuchos::RCP<Tpetra::MultiVector<ST,LO,GO,NT> > > & many, const Tpetra::MultiVector<ST,LO,GO,NT> & single,
                                                            const std::vector<Teuchos::RCP<Tpetra::Import<LO,GO,NT> > > & subImport);

void buildSubVectors(const std::vector<MapPair> & maps,
                     std::vector<Teuchos::RCP<Tpetra::MultiVector<ST,LO,GO,NT> > > & vectors,int count);

Teuchos::RCP<Tpetra::Vector<GO,LO,GO,NT> > getSubBlockColumnGIDs(const Tpetra::CrsMatrix<ST,LO,GO,NT> & A,const MapPair & mapPair);

Teuchos::RCP<Tpetra::CrsMatrix<ST,LO,GO,NT> > buildSubBlock(int i,int j,const Teuchos::RCP<const Tpetra::CrsMatrix<ST,LO,GO,NT> >& A,const std::vector<MapPair> & subMaps);

void rebuildSubBlock(int i,int j,const Teuchos::RCP<const Tpetra::CrsMatrix<ST,LO,GO,NT> >& A,const std::vector<MapPair> & subMaps,Tpetra::CrsMatrix<ST,LO,GO,NT> & mat);

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

#endif