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/* Copyright 2020 Axel Huebl
*
* This file is part of WarpX.
*
* License: BSD-3-Clause-LBNL
*/
#ifndef WARPX_MPI_INIT_HELPERS_H_
#define WARPX_MPI_INIT_HELPERS_H_
#include <utility>
namespace utils
{
/** Initialize MPI
*
* @return pair(required, provided) of MPI thread level from MPI_Init_thread
*/
std::pair< int, int >
warpx_mpi_init (int argc, char* argv[]);
/** Check if the requested MPI thread level is valid
*
* Prints warnings and notes otherwise.
*
* @param mpi_thread_levels pair(required, provided) of MPI thread level from MPI_Init_thread
*/
void
warpx_check_mpi_thread_level (std::pair< int, int > const mpi_thread_levels);
} // namespace utils
#endif // WARPX_MPI_INIT_HELPERS_H_
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