argv[0] = xbt_strdup(pr_name_tx);
argv[1] = xbt_strdup(mbox);
argv[2] = NULL;
MSG_process_create_with_arguments(pr_name_tx, communication_tx_fun, NULL, tx_host, 2, argv);
argv[0] = xbt_strdup(pr_name_tx);
argv[1] = xbt_strdup(mbox);
argv[2] = NULL;
MSG_process_create_with_arguments(pr_name_tx, communication_tx_fun, NULL, tx_host, 2, argv);