1 /* ../../../smpi_script/bin/smpirun -hostfile hostfile_send_deterministic -platform ../../platforms/cluster_backbone.xml -np 3 --cfg=smpi/send-is-detached-thresh:0 gdb\ --args\ ./send_deterministic */
3 /* Copyright (c) 2009-2022. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
11 int main(int argc, char **argv)
19 int err = MPI_Init(&argc, &argv);
20 if (err != MPI_SUCCESS) {
21 printf("MPI initialization failed!\n");
25 MPI_Comm_size(MPI_COMM_WORLD, &size); /* Get nr of tasks */
26 MPI_Comm_rank(MPI_COMM_WORLD, &rank); /* Get id of this process */
28 printf("run this program with at least 2 processes \n");
34 for (int i = 0; i < size - 1; i++) {
35 MPI_Recv(&recv_buff, 1, MPI_INT, MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &status);
38 MPI_Send(&rank, 1, MPI_INT, 0, 42, MPI_COMM_WORLD);