Hate to be a party-pooper, but the answer is "no" in OpenMPI 1.2. We don't allow the use of a hostfile in a Torque environment in that version.
We have changed this for v1.3, but you'll have to wait for that release. Sorry Ralph On 12/18/07 11:12 AM, "pat.o'bry...@exxonmobil.com" <pat.o'bry...@exxonmobil.com> wrote: > Tim, > Will OpenMPI 1.2.1 allow the use of a "hostfile"? > Thanks, > Pat > > J.W. (Pat) O'Bryant,Jr. > Business Line Infrastructure > Technical Systems, HPC > Office: 713-431-7022 > > > > > Tim Prins > <tprins@open-m > > pi.org> To > Sent by: Open MPI Users <users@open- > mpi.org> > users- > bounces@ cc > open-mpi.org > > Subject > Re: [OMPI users] Torque and > OpenMPI > 12/18/07 11:57 1.2 > AM > > > Please respond > to > Open MPI Users > <users@open-mp > i.org> > > > > > > > > > Open MPI v1.2 had some problems with the TM configuration code which was > fixed > in v1.2.1. So any version v1.2.1 or later should work fine (and, as you > indicate, 1.2.4 works fine). > > Tim > > On Tuesday 18 December 2007 12:48:40 pm pat.o'bry...@exxonmobil.com > wrote: >> Jeff, >> Here is the result of the "pbs-config". By the way, I have > successfully >> built OpenMPI 1.2.4 on this same system. The "config.log" for OpenMPI > 1.2.4 >> shows the correct Torque path. That is not surprising since the > "configure" >> script for OpenMPI 1.2.4 uses "pbs-config" while the configure >> script for >> OpenMPI 1.2 does not. >> > --------------------------------------------------------------------------- >> ----------------------------------------- # pbs-config --libs >> -L/usr/local/pbs/x86_64/lib -ltorque -Wl,--rpath >> -Wl,/usr/local/pbs/x86_64/lib >> > --------------------------------------------------------------------------- >> ----------------------------------------- >> >> Now, to address your concern about the nodes, my users are not > "adding >> nodes" to those provided by Torque. They are using a "proper subset" >> of > the >> nodes. Also, I believe I read this comment on the OpenMPI web site > which >> seems to imply an oversight as far as the "-hostfile" is concerned. >> > --------------------------------------------------------------------------- >> ---------------------------------------------------------------------------- > >> ----------------------------------------- Can I specify a hostfile >> or use >> the --host option to mpirun when running in a Torque / PBS >> environment? >> As of version v1.2.1, no. >> Open MPI will fail to launch processes properly when a hostfile is > specifed >> on the mpirun command line, or if the mpirun [--host] option is used. >> >> >> We're working on correcting the error. A future version of Open MPI >> will >> likely launch on the hosts specified either in the hostfile or via the >> --host option as long as they are a proper subset of the hosts >> allocated > to >> the Torque / PBS Pro job. >> > --------------------------------------------------------------------------- >> ---------------------------------------------------------------------------- > >> ----------------------------------------- Thanks, >> >> J.W. (Pat) O'Bryant,Jr. >> Business Line Infrastructure >> Technical Systems, HPC >> Office: 713-431-7022 >> >> _______________________________________________ >> 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 > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
