- t_simdata->comm = SIMIX_req_comm_isend(mailbox, t_simdata->message_size,
- t_simdata->rate, task, sizeof(void *), task);
+ comm = SIMIX_req_comm_isend(mailbox, t_simdata->message_size,
+ t_simdata->rate, task, sizeof(void *), NULL, NULL, 0);
+ t_simdata->comm = comm;