Thyra_TpetraVectorSpace_decl.hpp

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// @HEADER
// *****************************************************************************
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//
// Copyright 2004 NTESS and the Thyra contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef THYRA_TPETRA_VECTOR_SPACE_DECL_HPP
#define THYRA_TPETRA_VECTOR_SPACE_DECL_HPP


#include "Thyra_SpmdVectorSpaceDefaultBase.hpp"
#include "Tpetra_Map.hpp"
#include "Tpetra_MultiVector.hpp"


namespace Thyra {


template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
class TpetraVectorSpace : public SpmdVectorSpaceDefaultBase<Scalar>
{
public:

  typedef TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> this_t;


  static RCP<TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> > create();

  void initialize(
    const RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > &tpetraMap
    );




  RCP<TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node>>
  createLocallyReplicatedVectorSpace(int size) const;


  bool hasInCoreView(
    const Range1D& rng, const EViewType viewType, const EStrideType strideType
    ) const;
  RCP< const VectorSpaceBase<Scalar> > clone() const;

  RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> >
  getTpetraMap() const;


protected:


  RCP<VectorBase<Scalar> >
  createMember() const;
  RCP<MultiVectorBase<Scalar> >
  createMembers(int numMembers) const;

public:

  RCP<MultiVectorBase<Scalar> >
  createCachedMembersView( const RTOpPack::SubMultiVectorView<Scalar> &raw_mv, bool initialize = true) const;

  RCP<const MultiVectorBase<Scalar> >
  createCachedMembersView( const RTOpPack::ConstSubMultiVectorView<Scalar> &raw_mv ) const;


public:


  RCP<const Teuchos::Comm<Ordinal> > getComm() const;
  Ordinal localSubDim() const;


private:

  // //////////////////////////////////////
  // Private data members

  RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > tpetraMap_;
  mutable RCP<TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> > tpetraDomainSpace_;
  mutable RCP<Tpetra::MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> > tpetraMV_;
  // The only reason Thyra needs this comm_ object is because Thyra
  // uses Ordinal as the Comm template parameter, while Tpetra uses
  // int.  Ordinal is some 64-bit type, which doesn't make any sense,
  // given that MPI implementations currently only allow 32-bit
  // process ranks.  This is why Thyra does not just use the Map's
  // stored communicator.
  RCP<const Teuchos::Comm<Ordinal> > comm_;
  RCP<this_t> weakSelfPtr_;

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

  TpetraVectorSpace();

}; // end class TpetraVectorSpace


template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
tpetraVectorSpace(
  const RCP<const Tpetra::Map<LocalOrdinal,GlobalOrdinal,Node> > &tpetraMap
  )
{
  RCP<TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node> > vs =
    TpetraVectorSpace<Scalar,LocalOrdinal,GlobalOrdinal,Node>::create();
  vs->initialize(tpetraMap);
  return vs;
}


} // end namespace Thyra


#endif // THYRA_TPETRA_VECTOR_SPACE_DECL_HPP