mpi.h

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/*
 *   Copyright 2021 Huawei Technologies Co., Ltd.
 *
 * 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 LPFLIB_MPI_H
#define LPFLIB_MPI_H
 
#include <lpf/core.h>
#include <mpi.h>
 
#ifdef __cplusplus
extern "C" {     
#endif
 
extern const int LPF_MPI_AUTO_INITIALIZE ;
 
 
lpf_err_t lpf_mpi_initialize_with_mpicomm( MPI_Comm comm, lpf_init_t * init );
 
lpf_err_t lpf_mpi_initialize_over_tcp( 
        const char * server, const char * port, int timeout,
        lpf_pid_t pid, lpf_pid_t nprocs, 
        lpf_init_t * init );
 
 
/* Releases all resources associated with a #lpf_init_t object that was initialised using
 * lpf_mpi_initialize_with_mpicomm(). This function must be called collectively by all
 * processes that participated in the initialization. 
 
 * \param[in] init The #lpf_init_t object that was created through
 *                    lpf_mpi_initialize_with_mpicomm().
 *
 * \returns #LPF_SUCCESS 
 *              when resources were  successfully released.
 *
 * \returns #LPF_ERR_FATAL
 *              when the system encountered an unrecoverable error.
 */
lpf_err_t lpf_mpi_finalize( lpf_init_t init );
 
#ifdef __cplusplus
}
#endif
 
#endif