Am 01.02.2012 um 15:38 schrieb Ralph Castain: > On Feb 1, 2012, at 3:49 AM, Reuti wrote: > >> Am 31.01.2012 um 21:25 schrieb Ralph Castain: >> >>> On Jan 31, 2012, at 12:58 PM, Reuti wrote: >> >> BTW: is there any default for a hostfile for Open MPI - I mean any in my >> home directory or /etc? When I check `man orte_hosts`, and all possible >> optiions are unset (like in a singleton run), it will only run local (Job is >> co-located with mpirun). > > Yep - it is <prefix>/etc/openmpi-default-hostfile
Thx for replying Ralph. I spotted it too, but this is not working for me. Neither for mpiexec from the command line, nor any singleton. I also tried a plain /etc as location of this file as well. reuti@pc15370:~> which mpicc /home/reuti/local/openmpi-1.4.4-thread/bin/mpicc reuti@pc15370:~> cat /home/reuti/local/openmpi-1.4.4-thread/etc/openmpi-default-hostfile pc15370 slots=2 pc15381 slots=2 reuti@pc15370:~> mpicc -o mpihello mpihello.c reuti@pc15370:~> mpiexec -np 4 ./mpihello Hello World from Node 0. Hello World from Node 1. Hello World from Node 2. Hello World from Node 3. But all is local (no spawn here, traditional mpihello): 19503 ? Ss 0:00 /usr/sbin/sshd -o PidFile=/var/run/sshd.init.pid 11583 ? Ss 0:00 \_ sshd: reuti [priv] 11585 ? S 0:00 | \_ sshd: reuti@pts/6 11587 pts/6 Ss 0:00 | \_ -bash 13470 pts/6 S+ 0:00 | \_ mpiexec -np 4 ./mpihello 13471 pts/6 R+ 0:00 | \_ ./mpihello 13472 pts/6 R+ 0:00 | \_ ./mpihello 13473 pts/6 R+ 0:00 | \_ ./mpihello 13474 pts/6 R+ 0:00 | \_ ./mpihello -- Reuti >>> We probably aren't correctly marking the original singleton on that node, >>> and so the mapper thinks there are still two slots available on the >>> original node. >> >> Okay. There is something to discuss/fix. BTW: if started as singleton I get >> an error at the end with the program the OP provided: >> >> [pc15381:25502] [[12435,0],1] routed:binomial: Connection to lifeline >> [[12435,0],0] lost > > Okay, I'll take a look at it - but it may take awhile before I can address > either issue as other priorities loom. > >> >> It's not the case if run by mpiexec. >> >> -- Reuti >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users