sync_unsets       396 ompi/request/req_wait.c     size_t sync_sets = 0, sync_unsets = 0;
sync_unsets       479 ompi/request/req_wait.c     sync_unsets = num_active_reqs - num_requests_done;
sync_unsets       481 ompi/request/req_wait.c     if( sync_sets == sync_unsets ){