Xpetra_MpiPlatform.hpp

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#ifndef XPETRA_MPIPLATFORM_HPP
#define XPETRA_MPIPLATFORM_HPP

#include <Teuchos_DefaultMpiComm.hpp>
#include <Teuchos_Describable.hpp>
#include <Kokkos_DefaultNode.hpp>

#include "Xpetra_ConfigDefs.hpp"

namespace Xpetra {


  template<class Node=KokkosClassic::DefaultNode::DefaultNodeType>
  class MpiPlatform : public Teuchos::Describable {
  public:
    typedef Node NodeType;


    explicit MpiPlatform(Teuchos::RCP<Node> node);

    MpiPlatform(Teuchos::RCP<Node> node, const Teuchos::RCP<const Teuchos::OpaqueWrapper<MPI_Comm> > &rawMpiComm);

    ~MpiPlatform();




    Teuchos::RCP< const Teuchos::Comm<int> > getComm() const;

    Teuchos::RCP<Node> getNode() const;


  private:
    Teuchos::RCP<Teuchos::MpiComm<int> > comm_;
    MpiPlatform(const MpiPlatform<Node> &platform);
  };

  template <class Node>
  MpiPlatform<Node>::MpiPlatform(Teuchos::RCP<Node> /* node */, const Teuchos::RCP<const Teuchos::OpaqueWrapper<MPI_Comm> > &rawMpiComm) :
    comm_ (Teuchos::createMpiComm<int>(rawMpiComm))
  {}

  template <class Node>
  MpiPlatform<Node>::MpiPlatform(Teuchos::RCP<Node> /* node */) :
    comm_ (Teuchos::createMpiComm<int>(Teuchos::opaqueWrapper<MPI_Comm>(MPI_COMM_WORLD)))
  {}

  template <class Node>
  MpiPlatform<Node>::~MpiPlatform() {  }

  template <class Node>
  MpiPlatform<Node>::MpiPlatform(const MpiPlatform<Node> &platform) {
    comm_ = platform.comm_;
  }

  template <class Node>
  Teuchos::RCP< const Teuchos::Comm<int> >
  MpiPlatform<Node>::getComm() const {
    return comm_;
  }

  template <class Node>
  Teuchos::RCP<Node> MpiPlatform<Node>::getNode() const
  {  return Teuchos::null; }

} // namespace Xpetra

#endif // XPETRA_MPIPLATFORM_HPP