Thyra_MPIVectorBaseDecl.hpp

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//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//                 Copyright (2004) Sandia Corporation
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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#ifndef THYRA_MPI_VECTOR_BASE_DECL_HPP
#define THYRA_MPI_VECTOR_BASE_DECL_HPP

#include "Thyra_VectorDefaultBase.hpp"
#include "Thyra_MPIVectorSpaceBaseDecl.hpp"

namespace Thyra {

template<class Scalar>
class MPIVectorBase : virtual public VectorDefaultBase<Scalar> {
public:

  using VectorDefaultBase<Scalar>::applyOp;

  MPIVectorBase();


  virtual Teuchos::RefCountPtr<const MPIVectorSpaceBase<Scalar> > mpiSpace() const = 0;

  virtual void getLocalData( Scalar** localValues, Index* stride ) = 0;

  virtual void commitLocalData( Scalar* localValues ) = 0;



  virtual void getLocalData( const Scalar** localValues, Index* stride ) const;

  virtual void freeLocalData( const Scalar* localValues ) const;



  Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> > space() const;
  void applyOp(
    const RTOpPack::RTOpT<Scalar>   &op
    ,const int                      num_vecs
    ,const VectorBase<Scalar>*      vecs[]
    ,const int                      num_targ_vecs
    ,VectorBase<Scalar>*            targ_vecs[]
    ,RTOpPack::ReductTarget         *reduct_obj
    ,const Index                    first_ele
    ,const Index                    sub_dim
    ,const Index                    global_offset
    ) const;
  void getSubVector( const Range1D& rng, RTOpPack::SubVectorT<Scalar>* sub_vec ) const;
  void freeSubVector( RTOpPack::SubVectorT<Scalar>* sub_vec ) const;
  void getSubVector( const Range1D& rng, RTOpPack::MutableSubVectorT<Scalar>* sub_vec );
  void commitSubVector( RTOpPack::MutableSubVectorT<Scalar>* sub_vec );


protected:

  virtual void updateMpiSpace();

private:

  // ///////////////////////////////////////
  // Private data members
  
  mutable bool in_applyOp_;

  // Cached (only on vector space!)
  mutable Index  globalDim_;
  mutable Index  localOffset_;
  mutable Index  localSubDim_;

  // /////////////////////////////////////
  // Private member functions

  Range1D validateRange( const Range1D& rng_in ) const;

}; // end class MPIVectorBase

} // end namespace Thyra

#endif // THYRA_MPI_VECTOR_BASE_DECL_HPP

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