miompi.h

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/* 
* Copyright (C) 2020-2026 MEmilio
*
* Authors: Daniel Abele
*
* Contact: Martin J. Kuehn <Martin.Kuehn@DLR.de>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MIO_UTILS_MPI_H
#define MIO_UTILS_MPI_H
 
#include "memilio/config.h" // IWYU pragma: keep
 
#ifdef MEMILIO_ENABLE_MPI
#include "mpi.h"
#endif
 
namespace mio
{
namespace mpi
{
#ifdef MEMILIO_ENABLE_MPI
using Comm = MPI_Comm;
#else
using Comm = void*;
#endif
 
Comm get_world();
 
void init();
 
void finalize();
 
bool is_root();
 
int rank(Comm comm);
 
int size(Comm comm);
 
} // namespace mpi
} // namespace mio
 
#endif