BelosCGIteration.hpp

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#ifndef BELOS_CG_ITERATION_HPP
#define BELOS_CG_ITERATION_HPP
 
#include "BelosConfigDefs.hpp"
#include "BelosTypes.hpp"
#include "BelosIteration.hpp"
 
namespace Belos {
 
 
  
  template <class ScalarType, class MV>
  struct CGIterationState {
 
    Teuchos::RCP<const MV> R;
 
    Teuchos::RCP<const MV> Z;
 
    Teuchos::RCP<const MV> P;
 
    Teuchos::RCP<const MV> AP;
    
    CGIterationState() : R(Teuchos::null), Z(Teuchos::null), 
        P(Teuchos::null), AP(Teuchos::null)
    {}
  };
 
 
  
  class CGIterationInitFailure : public BelosError {public:
    CGIterationInitFailure(const std::string& what_arg) : BelosError(what_arg)
    {}};
 
  class CGIterateFailure : public BelosError {public:
    CGIterateFailure(const std::string& what_arg) : BelosError(what_arg)
    {}};
  
  class CGIterationOrthoFailure : public BelosError {public:
    CGIterationOrthoFailure(const std::string& what_arg) : BelosError(what_arg)
    {}};
 
  class CGIterationLAPACKFailure : public BelosError {public:
    CGIterationLAPACKFailure(const std::string& what_arg) : BelosError(what_arg)
    {}};
  
 
 
template<class ScalarType, class MV, class OP>
class CGIteration : virtual public Iteration<ScalarType,MV,OP> {
 
  public:
 
 
 
  virtual void initializeCG(CGIterationState<ScalarType,MV>& newstate) = 0;
 
  virtual CGIterationState<ScalarType,MV> getState() const = 0;
 
 
  virtual void setDoCondEst(bool val) = 0;
 
  virtual Teuchos::ArrayView<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> getDiag() = 0;
 
  virtual Teuchos::ArrayView<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> getOffDiag() = 0;
 
};
 
} // end Belos namespace
 
#endif /* BELOS_CG_ITERATION_HPP */