/usr/include/trilinos/Thyra_DetachedSpmdVectorView.hpp is in libtrilinos-thyra-dev 12.12.1-5.
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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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// @HEADER
#ifndef THYRA_DETACHED_SPMD_VECTOR_VIEW_HPP
#define THYRA_DETACHED_SPMD_VECTOR_VIEW_HPP
#include "Thyra_SpmdVectorBase.hpp"
#include "Teuchos_Assert.hpp"
namespace Thyra {
/** \brief Create an explicit detached non-mutable (const) view of all of the
* local elements on this process of an <tt>VectorBase</tt> object.
*
* The default constructor, copy constructor and assignment operators
* are not allowed.
*
* \ingroup Thyra_Op_Vec_spmd_adapters_grp
*/
template<class Scalar>
class ConstDetachedSpmdVectorView {
public:
/** \brief . */
ConstDetachedSpmdVectorView(const Teuchos::RCP<const VectorBase<Scalar> > &v)
{
using Teuchos::rcp_dynamic_cast;
if (!is_null(v)) {
const RCP<const SpmdVectorBase<Scalar> > spmd_v =
rcp_dynamic_cast<const SpmdVectorBase<Scalar> >(v, true);
v_ = spmd_v;
sv_ = spmd_v->getLocalSubVector();
}
else {
v_ = Teuchos::null;
sv_ = RTOpPack::ConstSubVectorView<Scalar>();
}
}
/** \brief . */
~ConstDetachedSpmdVectorView()
{}
/** \brief . */
const RCP<const SpmdVectorSpaceBase<Scalar> > spmdSpace() const
{ if (!is_null(v_)) return v_->spmdSpace(); return Teuchos::null; }
/** \brief . */
const RTOpPack::ConstSubVectorView<Scalar>& sv() const { return sv_; }
/** \brief . */
Teuchos_Ordinal globalOffset() const { return sv_.globalOffset(); }
/** \brief . */
Teuchos_Ordinal subDim() const { return sv_.subDim(); }
/** \brief . */
const ArrayRCP<const Scalar> values() const { return sv_.values(); }
/** \brief . */
ptrdiff_t stride() const { return sv_.stride(); }
/** \brief . */
const Scalar& operator[](Teuchos_Ordinal i) const { return sv_[i]; }
/** \brief . */
const Scalar& operator()(Teuchos_Ordinal i) const { return sv_(i); }
private:
Teuchos::RCP<const SpmdVectorBase<Scalar> > v_;
RTOpPack::ConstSubVectorView<Scalar> sv_;
// Not defined and not to be called
ConstDetachedSpmdVectorView();
ConstDetachedSpmdVectorView(const ConstDetachedSpmdVectorView<Scalar>&);
ConstDetachedSpmdVectorView<Scalar>& operator==(
const ConstDetachedSpmdVectorView<Scalar>&);
};
/** \brief Create an explicit detached mutable (non-const) view of all of the
* local elements on this process of an <tt>VectorBase</tt> object.
*
* The default constructor, copy constructor and assignment operators
* are not allowed.
*
* \ingroup Thyra_Op_Vec_spmd_adapters_grp
*/
template<class Scalar>
class DetachedSpmdVectorView {
public:
/** \brief . */
DetachedSpmdVectorView(const Teuchos::RCP<VectorBase<Scalar> > &v)
{
using Teuchos::rcp_dynamic_cast;
if (!is_null(v)) {
const RCP<SpmdVectorBase<Scalar> > spmd_v =
rcp_dynamic_cast<SpmdVectorBase<Scalar> >(v, true);
v_ = spmd_v;
sv_ = spmd_v->getNonconstLocalSubVector();
}
else {
v_ = Teuchos::null;
sv_ = RTOpPack::SubVectorView<Scalar>();
}
}
/** \brief . */
~DetachedSpmdVectorView()
{}
/** \brief . */
const RCP<const SpmdVectorSpaceBase<Scalar> > spmdSpace() const
{ if (!is_null(v_)) return v_->spmdSpace(); return Teuchos::null; }
/** \brief . */
const RTOpPack::SubVectorView<Scalar>& sv() const { return sv_; }
/** \brief . */
Teuchos_Ordinal globalOffset() const { return sv_.globalOffset(); }
/** \brief . */
Teuchos_Ordinal subDim() const { return sv_.subDim(); }
/** \brief . */
const ArrayRCP<const Scalar> values() const { return sv_.values(); }
/** \brief . */
ptrdiff_t stride() const { return sv_.stride(); }
/** \brief . */
Scalar& operator[](Teuchos_Ordinal i) const { return sv_[i]; }
/** \brief . */
Scalar& operator()(Teuchos_Ordinal i) const { return sv_(i); }
private:
Teuchos::RCP<SpmdVectorBase<Scalar> > v_;
RTOpPack::SubVectorView<Scalar> sv_;
// Not defined and not to be called
DetachedSpmdVectorView();
DetachedSpmdVectorView(const DetachedSpmdVectorView<Scalar>&);
DetachedSpmdVectorView<Scalar>& operator==(
const DetachedSpmdVectorView<Scalar>&);
};
} // namespace Thyra
#endif // THYRA_DETACHED_SPMD_VECTOR_VIEW_HPP
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