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Teko_StridedMappingStrategy.hpp
00001 /*
00002 // @HEADER
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,
00010 // the U.S. Government retains certain rights in this software.
00011 //  
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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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00022 //  
00023 // 3. Neither the name of the Corporation nor the names of the
00024 // contributors may be used to endorse or promote products derived from
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00045 */
00046 
00047 #ifndef __Teko_StridedMappingStrategy_hpp__
00048 #define __Teko_StridedMappingStrategy_hpp__
00049 
00050 // stl includes
00051 #include <vector>
00052 
00053 // Teuchos includes
00054 #include "Teuchos_RCP.hpp"
00055 
00056 // Thyra includes
00057 #include "Thyra_MultiVectorBase.hpp"
00058 #include "Thyra_LinearOpBase.hpp"
00059 #include "Thyra_BlockedLinearOpBase.hpp"
00060 
00061 // Epetra includes
00062 #include "Epetra_Comm.h"
00063 #include "Epetra_Map.h"
00064 #include "Epetra_MultiVector.h"
00065 #include "Epetra_Import.h"
00066 #include "Epetra_Export.h"
00067 #include "Epetra_CrsMatrix.h"
00068 
00069 // Teko includes
00070 #include "Teko_EpetraOperatorWrapper.hpp"
00071 
00072 namespace Teko {
00073 namespace Epetra {
00074 
00075 class StridedMappingStrategy : public MappingStrategy {
00076 public:
00078 
00079 
00089    StridedMappingStrategy(const std::vector<int> & vars,const Teuchos::RCP<const Epetra_Map> & map, const Epetra_Comm & comm);
00091 
00093 
00094 
00102    virtual void copyEpetraIntoThyra(const Epetra_MultiVector& epetra_X, 
00103                                     const Teuchos::Ptr<Thyra::MultiVectorBase<double> > & thyra_X) const;
00104 
00112    virtual void copyThyraIntoEpetra(const Teuchos::RCP<const Thyra::MultiVectorBase<double> > & thyra_Y, 
00113                                     Epetra_MultiVector& epetra_Y) const;
00114 
00122    virtual const Teuchos::RCP<const Epetra_Map> domainMap() const
00123    { return domainMap_; }
00124 
00132    virtual const Teuchos::RCP<const Epetra_Map> rangeMap() const
00133    { return rangeMap_; }
00134 
00139    virtual std::string toString() const
00140    { return std::string("StridedMappingStrategy"); }
00141  
00143 
00145 
00146 
00161    void buildBlockTransferData(const std::vector<int> & vars,const Teuchos::RCP<const Epetra_Map> & baseMap, 
00162                                const Epetra_Comm & comm);
00163 
00175    const std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > & getMaps() const
00176    { return blockMaps_; }
00177 
00189    const Teuchos::RCP<Thyra::BlockedLinearOpBase<double> > 
00190    buildBlockedThyraOp(const Teuchos::RCP<const Epetra_CrsMatrix> & mat,const std::string & label="<ANYM>") const;
00191 
00201    void rebuildBlockedThyraOp(const RCP<const Epetra_CrsMatrix> & mat,
00202                               const RCP<Thyra::BlockedLinearOpBase<double> > & A) const;
00203 
00205 
00206 protected:
00207    // member variables
00208 
00210 
00211    Teuchos::RCP<const Epetra_Map> domainMap_; 
00212    Teuchos::RCP<const Epetra_Map> rangeMap_;
00214 
00216 
00217    std::vector<std::pair<int,Teuchos::RCP<Epetra_Map> > > blockMaps_;
00218    std::vector<Teuchos::RCP<Epetra_Export> > blockExport_;
00219    std::vector<Teuchos::RCP<Epetra_Import> > blockImport_;
00221 };
00222 
00223 } // end namespace Epetra
00224 } // end namespace Teko
00225 
00226 #endif
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