Hi there! I found a little mistake in mpich-3.1.4/src/mpid/ch3/channels/nemesis/src/mpid_nem_lmt.c file, lines from 430 to 438. 430 if (cookie_pkt->from_sender) { 431 MPID_Request_get_ptr(cookie_pkt->receiver_req_id, req); 432 req->ch.lmt_req_id = cookie_pkt->sender_req_id; 433 } 434 else { 435 MPID_Request_get_ptr(cookie_pkt->sender_req_id, req); 436 req->ch.lmt_req_id = cookie_pkt->receiver_req_id; 437 } 438 MPIU_Assert(req != NULL); On line 438 there's check performed that request is not NULL, but it is used already on line 432 and line 436. -- Best regards, Dmitry Polyakov. _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss