for (i = 0; i < size; i++) {
smpi_global->pending_send_request_queues[i] = xbt_fifo_new();
smpi_global->pending_send_request_queues_mutexes[i] = SIMIX_mutex_init();
for (i = 0; i < size; i++) {
smpi_global->pending_send_request_queues[i] = xbt_fifo_new();
smpi_global->pending_send_request_queues_mutexes[i] = SIMIX_mutex_init();