On Nov 11, 2014, at 10:31 AM, Victor Vysotskiy <[email protected]> wrote: %mpirun -np 2 ./a.out [1415719636.245549] [n1:37817:0] shm.c:65 MXM WARN Could not open the KNEM device file at /dev/knem : No such file or directory. Won't use knem.

[1415719636.245549] [n1:37818:0] shm.c:65 MXM WARN Could not open the KNEM device file at /dev/knem : No such file or directory. Won't use knem.

You can get rid of this by setting the environment variable MXM_LOG_LEVEL=error

[1415719636.263914] [n1:37817:0] ib_dev.c:443 MXM ERROR ibv_query_device() returned 38: No such file or directory

[1415719636.264134] [n1:37818:0] ib_dev.c:443 MXM ERROR ibv_query_device() returned 38: No such file or directory

These are weird. I’m assuming you have a Mellanox IB network? — Pavan -- Pavan Balaji ✉️ http://www.mcs.anl.gov/~balaji _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss