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Thyra_EpetraOperatorWrapper.hpp
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00004 //    Thyra: Interfaces and Support for Abstract Numerical Algorithms
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00041 
00042 #ifndef THYRA_EPETRA_OPERATOR_WRAPPER_HPP
00043 #define THYRA_EPETRA_OPERATOR_WRAPPER_HPP
00044 
00045 #include "Thyra_LinearOpBase.hpp"
00046 #include "Epetra_Map.h"
00047 #include "Epetra_Comm.h"
00048 #include "Epetra_MultiVector.h"
00049 #include "Epetra_Operator.h"
00050 
00051 
00052 namespace Thyra {
00053 
00054 
00063 class EpetraOperatorWrapper : public Epetra_Operator
00064 {
00065 public:
00066 
00069 
00071   EpetraOperatorWrapper(const RCP<const LinearOpBase<double> > &thyraOp);
00072 
00074   void copyEpetraIntoThyra(const Epetra_MultiVector &x,
00075     const Ptr<VectorBase<double> > &thyraVec) const;
00076 
00078   void copyThyraIntoEpetra(const VectorBase<double> &thyraVec,
00079     Epetra_MultiVector &x) const;
00080 
00082 
00085 
00087   int SetUseTranspose(bool UseTranspose_in)
00088     {
00089       useTranspose_ = UseTranspose_in;
00090       return 0;
00091     }
00092 
00094   int Apply(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const ;
00095 
00097   int ApplyInverse(const Epetra_MultiVector& X, Epetra_MultiVector& Y) const ;
00098 
00100   double NormInf() const ;
00101 
00103   const char* Label() const {return label_.c_str();}
00104 
00106   bool UseTranspose() const {return useTranspose_;}
00107 
00109   bool HasNormInf() const {return false;}
00110     
00112   const Epetra_Comm& Comm() const {return *comm_;}
00113 
00115   const Epetra_Map& OperatorDomainMap() const {return *domainMap_;}
00116 
00118   const Epetra_Map& OperatorRangeMap() const {return *rangeMap_;}
00119 
00121 
00122 private:
00123 
00124   bool useTranspose_;
00125   RCP<const LinearOpBase<double> > thyraOp_;
00126   RCP<const VectorSpaceBase<double> > range_;
00127   RCP<const VectorSpaceBase<double> > domain_;
00128   RCP<const Epetra_Comm> comm_;
00129   RCP<const Epetra_Map> rangeMap_;
00130   RCP<const Epetra_Map> domainMap_;
00131 
00132   std::string label_;
00133 
00134   static RCP<const Epetra_Comm> getEpetraComm(const LinearOpBase<double>& thyraOp);
00135 
00136 };
00137 
00138 
00147 RCP<const LinearOpBase<double> > 
00148 makeEpetraWrapper(const RCP<const LinearOpBase<double> > &thyraOp);
00149 
00150 
00151 }  // namespace Thyra
00152 
00153 
00154 #endif // THYRA_EPETRA_OPERATOR_WRAPPER_HPP
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