Teko_TpetraStridedMappingStrategy.hpp

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

// stl includes
#include <vector>

// Teuchos includes
#include "Teuchos_RCP.hpp"

// Thyra includes
#include "Thyra_MultiVectorBase.hpp"
#include "Thyra_LinearOpBase.hpp"
#include "Thyra_BlockedLinearOpBase.hpp"

// Tpetra includes
#include "Tpetra_Map.hpp"
#include "Tpetra_MultiVector.hpp"
#include "Tpetra_Import.hpp"
#include "Tpetra_Export.hpp"
#include "Tpetra_CrsMatrix.hpp"

// Teko includes
#include "Teko_TpetraOperatorWrapper.hpp"
#include "Teko_ConfigDefs.hpp"

namespace Teko {
namespace TpetraHelpers {

class TpetraStridedMappingStrategy : public MappingStrategy {
public:


   TpetraStridedMappingStrategy(const std::vector<int> & vars,const Teuchos::RCP<const Tpetra::Map<LO,GO,NT> > & map, const Teuchos::Comm<int> & comm);



   virtual void copyTpetraIntoThyra(const Tpetra::MultiVector<ST,LO,GO,NT>& tpetra_X, 
                                    const Teuchos::Ptr<Thyra::MultiVectorBase<ST> > & thyra_X) const;

   virtual void copyThyraIntoTpetra(const Teuchos::RCP<const Thyra::MultiVectorBase<ST> > & thyra_Y, 
                                    Tpetra::MultiVector<ST,LO,GO,NT>& tpetra_Y) const;

   virtual const Teuchos::RCP<const Tpetra::Map<LO,GO,NT> > domainMap() const
   { return domainMap_; }

   virtual const Teuchos::RCP<const Tpetra::Map<LO,GO,NT> > rangeMap() const
   { return rangeMap_; }

   virtual std::string toString() const
   { return std::string("TpetraStridedMappingStrategy"); }
 



   void buildBlockTransferData(const std::vector<int> & vars,const Teuchos::RCP<const Tpetra::Map<LO,GO,NT> > & baseMap, 
                               const Teuchos::Comm<int> & comm);

   const std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > & getMaps() const
   { return blockMaps_; }

   const Teuchos::RCP<Thyra::BlockedLinearOpBase<ST> > 
   buildBlockedThyraOp(const Teuchos::RCP<const Tpetra::CrsMatrix<ST,LO,GO,NT> > & mat,const std::string & label="<ANYM>") const;

   void rebuildBlockedThyraOp(const RCP<const Tpetra::CrsMatrix<ST,LO,GO,NT> > & mat,
                              const RCP<Thyra::BlockedLinearOpBase<ST> > & A) const;


protected:
   // member variables


   Teuchos::RCP<const Tpetra::Map<LO,GO,NT> > domainMap_; 
   Teuchos::RCP<const Tpetra::Map<LO,GO,NT> > rangeMap_;


   std::vector<std::pair<int,Teuchos::RCP<Tpetra::Map<LO,GO,NT> > > > blockMaps_;
   std::vector<Teuchos::RCP<Tpetra::Export<LO,GO,NT> > > blockExport_;
   std::vector<Teuchos::RCP<Tpetra::Import<LO,GO,NT> > > blockImport_;
};

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

#endif