Thyra_SpmdVectorBaseDecl.hpp

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// ***********************************************************************
// 
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//                 Copyright (2004) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
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// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
// 
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#ifndef THYRA_SPMD_VECTOR_BASE_DECL_HPP
#define THYRA_SPMD_VECTOR_BASE_DECL_HPP


#include "Thyra_VectorDefaultBaseDecl.hpp"
#include "Thyra_SpmdVectorSpaceDefaultBase_decl.hpp"


//#define THYRA_SPMD_VECTOR_BASE_DUMP


namespace Thyra {


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

  SpmdVectorBase();


  virtual Teuchos::RCP<const SpmdVectorSpaceBase<Scalar> > spmdSpace() const = 0;

  RTOpPack::SubVectorView<Scalar> getNonconstLocalSubVector();

  RTOpPack::ConstSubVectorView<Scalar> getLocalSubVector() const;

  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;

  virtual void applyOpImplWithComm(
    const Ptr<const Teuchos::Comm<Index> > &comm,
    const RTOpPack::RTOpT<Scalar> &op,
    const ArrayView<const Ptr<const VectorBase<Scalar> > > &vecs,
    const ArrayView<const Ptr<VectorBase<Scalar> > > &targ_vecs,
    const Ptr<RTOpPack::ReductTarget> &reduct_obj,
    const Index first_ele_offset,
    const Index sub_dim,
    const Index global_offset
    ) const;


  std::string description() const;


  Teuchos::RCP<const VectorSpaceBase<Scalar> > space() const;


protected:


  void applyOpImpl(
    const RTOpPack::RTOpT<Scalar> &op,
    const ArrayView<const Ptr<const VectorBase<Scalar> > > &vecs,
    const ArrayView<const Ptr<VectorBase<Scalar> > > &targ_vecs,
    const Ptr<RTOpPack::ReductTarget> &reduct_obj,
    const Index first_ele_offset,
    const Index sub_dim,
    const Index global_offset
    ) const;
  void acquireDetachedVectorViewImpl(
    const Range1D& rng, RTOpPack::ConstSubVectorView<Scalar>* sub_vec
    ) const;
  void releaseDetachedVectorViewImpl(
    RTOpPack::ConstSubVectorView<Scalar>* sub_vec
    ) const;
  void acquireNonconstDetachedVectorViewImpl(
    const Range1D& rng, RTOpPack::SubVectorView<Scalar>* sub_vec
    );
  void commitNonconstDetachedVectorViewImpl(
    RTOpPack::SubVectorView<Scalar>* sub_vec
    );



  virtual void updateSpmdSpace();


private:

  // ///////////////////////////////////////
  // Private data members
  
  mutable bool in_applyOpImpl_;

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

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

  Range1D validateRange( const Range1D& rng_in ) const;

#ifdef THYRA_SPMD_VECTOR_BASE_DUMP
public:
  static bool show_dump;
#endif // THYRA_SPMD_VECTOR_BASE_DUMP

}; // end class SpmdVectorBase


} // end namespace Thyra


#endif // THYRA_SPMD_VECTOR_BASE_DECL_HPP

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