Hi Nathan The only way to get that OOB error is if PMI isn't running - hence my earlier note. If PMI isn't actually running, then we fall back to the TCP OOB and try to open sockets - which won't work because the app is being direct-launched.
Alternatively, he could launch using "mpirun" and then it should work just fine. On Wed, Oct 10, 2012 at 7:59 AM, Nathan Hjelm <hje...@lanl.gov> wrote: > On Wed, Oct 10, 2012 at 02:50:59PM +0200, Christoph Niethammer wrote: > > Hello, > > > > I just tried to use Open MPI 1.7a1r27416 on a Cray XE6 system. > Unfortunately I > > get the following error when I run a simple HelloWorldMPI program: > > > > $ pirun HelloWorldMPI > > App launch reported: 2 (out of 2) daemons - 0 (out of 32) procs > > ... > > [unset]:_pmi_alps_get_appLayout:pmi_alps_get_apid returned with error: > Bad > > file descriptor > > There is a bug in Cray's PMI-3 which causes this error message. Change the > platform file to point at PMI 2.1.4. I was hoping Cray would fix the bug > before 1.7.0. Since that doesn't appear to be the case I will push updated > platform files that use PMI 2.1.4 instead of the default. > > > [nid01766:20603] mca_oob_tcp_init: unable to create IPv4 listen socket: > Unable > > to open a TCP socket for out-of-band communications > > ... > > Never seen this error before. What PE release is installed? > > -Nathan > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
