smx_action_t comm = SIMIX_comm_isend(simcall->issuer, rdv, task_size, rate,
src_buff, src_buff_size, match_fun, NULL,
data, 0);
smx_action_t comm = SIMIX_comm_isend(simcall->issuer, rdv, task_size, rate,
src_buff, src_buff_size, match_fun, NULL,
data, 0);