Hi, I've been working on a random segmentation fault that seems to occur during a collective communication when using the openib btl (see [OMPI users] [openib] segfault when using openib btl).
During my tests, I've come across different issues reported by OpenMPI-1.4.2: 1/ [[12770,1],0][btl_openib_component.c:3227:handle_wc] from bn0103 to: bn0122 error polling LP CQ with status LOCAL LENGTH ERROR status number 1 for wr_id 560618664 opcode 1 vendor error 105 qp_idx 3 2/ [[992,1],6][btl_openib_component.c:3227:handle_wc] from pbn04 to: pbn05 error polling LP CQ with status REMOTE ACCESS ERROR status number 10 for wr_id 162858496 opcode 1 vendor error 136 qp_idx 0[[992,1],5][btl_openib_component.c:3227:handle_wc] from pbn05 to: pbn04 error polling HP CQ with status WORK REQUEST FLUSHED ERROR status number 5 for wr_id 485900928 opcode 0 vendor error 249 qp_idx 0 -------------------------------------------------------------------------- The OpenFabrics stack has reported a network error event. Open MPI will try to continue, but your job may end up failing. Local host: p'" MPI process PID: 20743 Error number: 3 (IBV_EVENT_QP_ACCESS_ERR) This error may indicate connectivity problems within the fabric; please contact your system administrator. -------------------------------------------------------------------------- I'd like to know what these two errors mean and where they come from. Thanks for your help, Eloi -- Eloi Gaudry Free Field Technologies Company Website: http://www.fft.be Company Phone: +32 10 487 959
