Tpetra_ViewAccepter.hpp

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//          Tpetra: Templated Linear Algebra Services Package
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#ifndef TPETRA_VIEWACCEPTER_HPP
#define TPETRA_VIEWACCEPTER_HPP

#include <Teuchos_ArrayRCP.hpp>
#include "Tpetra_ConfigDefs.hpp"

#include <Kokkos_SerialNode.hpp>
#ifdef HAVE_KOKKOSCLASSIC_TBB
#include <Kokkos_TBBNode.hpp>
#endif
#ifdef HAVE_KOKKOSCLASSIC_THREADPOOL
#include <Kokkos_TPINode.hpp>
#endif
#ifdef HAVE_KOKKOSCLASSIC_OPENMP
#include <Kokkos_OpenMPNode.hpp>
#endif

namespace Tpetra {

  namespace details {

  template <class Node>
  class ViewAccepter {
    private:
      // no support for object instantiation
      ViewAccepter();
    public:
      template <class T>
      inline static ArrayRCP<T> acceptView(const ArrayRCP<T> &view) {
        Node::this_node_type_does_not_support_object_construction_from_user_views();
        return null;
      }
  };

  class ViewAccepterSupportedNode {
    private:
      // no support for object instantiation
      ViewAccepterSupportedNode();
    public:
      template <class T>
      inline static ArrayRCP<T> acceptView(const ArrayRCP<T> &view) {
        return view;
      }
  };

  template <>
  class ViewAccepter<Kokkos::SerialNode> : public ViewAccepterSupportedNode {};
#ifdef HAVE_KOKKOSCLASSIC_TBB
  template <>
  class ViewAccepter<Kokkos::TBBNode> : public ViewAccepterSupportedNode {};
#endif
#ifdef HAVE_KOKKOSCLASSIC_THREADPOOL
  template <>
  class ViewAccepter<Kokkos::TPINode> : public ViewAccepterSupportedNode {};
#endif
#ifdef HAVE_KOKKOSCLASSIC_OPENMP
  template <>
  class ViewAccepter<Kokkos::OpenMPNode> : public ViewAccepterSupportedNode {};
#endif

  } // end of namespace Tpetra::details

} // end of namespace Tpetra

#endif