Teko_InterlacedTpetra.hpp

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

// Teuchos includes
#include "Teuchos_RCP.hpp"

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

#include "Teko_ConfigDefs.hpp"

#include <vector>

namespace Teko {
namespace TpetraHelpers {
namespace Strided {

void buildSubMaps(GO numGlobals,int numVars,const Teuchos::Comm<int> & comm,
                  std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps);

void buildSubMaps(GO numGlobals,const std::vector<int> & vars,const Teuchos::Comm<int> & comm,
                  std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps);

void buildSubMaps(GO numGlobals,LO numMyElements,GO minMyGID,const std::vector<int> & vars,const Teuchos::Comm<int> & comm,
                  std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps);

void buildSubMaps(const Tpetra::Map<LO,GO,NT> & globalMap,const std::vector<int> & vars,const Teuchos::Comm<int> & comm,
                  std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps);

// build conversion import and export operators
void buildExportImport(const Tpetra::Map<LO,GO,NT> & baseMap, 
                       const std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps,
                       std::vector<Teuchos::RCP<Tpetra::Export<LO,GO,NT> > > & subExport,
                       std::vector<Teuchos::RCP<Tpetra::Import<LO,GO,NT> > > & subImport);

// build a vector of subVectors
void buildSubVectors(const std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps,
                     std::vector<Teuchos::RCP<Tpetra::MultiVector<ST,LO,GO,NT> > > & subVectors,LO count);

void associateSubVectors(const std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps,
                         std::vector<Teuchos::RCP<const Tpetra::MultiVector<ST,LO,GO,NT> > > & subVectors);

// build a single subblock Epetra_CrsMatrix
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<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps);

// Rebuild a single subblock of a matrix
void rebuildSubBlock(int i,int j,const Teuchos::RCP<const Tpetra::CrsMatrix<ST,LO,GO,NT> >& A,
                     const std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & subMaps,Tpetra::CrsMatrix<ST,LO,GO,NT> & mat);

// copy contents of many subvectors to a single vector
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);

// copy contents of a single vector to many subvectors
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);

}
} // end namespace TpetraHelpers
} // end namespace Teko

#endif