Cabana_Grid_MpiTraits.hpp

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/****************************************************************************
 * Copyright (c) 2018-2023 by the Cabana authors                            *
 * All rights reserved.                                                     *
 *                                                                          *
 * This file is part of the Cabana library. Cabana is distributed under a   *
 * BSD 3-clause license. For the licensing terms see the LICENSE file in    *
 * the top-level directory.                                                 *
 *                                                                          *
 * SPDX-License-Identifier: BSD-3-Clause                                    *
 ****************************************************************************/

#ifndef CABANA_GRID_MPITRAITS_HPP
#define CABANA_GRID_MPITRAITS_HPP
 
#include <Kokkos_Core.hpp>
 
#include <mpi.h>
 
namespace Cabana
{
namespace Grid
{
 
//---------------------------------------------------------------------------//
template <typename T>
struct MpiTraits;

template <>
struct MpiTraits<char>
{
    static MPI_Datatype type() { return MPI_CHAR; }
};

template <>
struct MpiTraits<int>
{
    static MPI_Datatype type() { return MPI_INT; }
};

template <>
struct MpiTraits<long>
{
    static MPI_Datatype type() { return MPI_LONG; }
};

template <>
struct MpiTraits<float>
{
    static MPI_Datatype type() { return MPI_FLOAT; }
};

template <>
struct MpiTraits<double>
{
    static MPI_Datatype type() { return MPI_DOUBLE; }
};
 
//---------------------------------------------------------------------------//
 
} // namespace Grid
} // namespace Cabana
 
#endif // end CABANA_GRID_MPITRAITS_HPP