- previous_send = xbt_replay_action_get("send");
- xbt_replay_action_register("send", overriding_send);
-
+ int rank;
+ MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+ if (rank == 0) {
+ previous_send = xbt_replay_action_get("send");
+ xbt_replay_action_register("send", overriding_send);
+ }