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Subject: Re: [OMPI users] Torque and OpenMPI 1.2
From: pat.o'bryant_at_[hidden]
Date: 2007-12-19 08:47:09

    Your suggestion worked. So long as I specifically state "--without-tm",
the OpenMPI 1.2.4 build allows the use of "-hostfile". Apparently, by
default, OpenMPI 1.2.4 will incorporate Torque if it exists, so it is
necessary to specifically request "no Torque support". I used the normal
Torque processes to submit the job and specified "-hostfile $PBS_NODEFILE".
Everything worked.
           Thanks for your help,

J.W. (Pat) O'Bryant,Jr.
Business Line Infrastructure
Technical Systems, HPC
Office: 713-431-7022

             <terry_at_[hidden] To
             .se> Open MPI Users <users_at_[hidden]>
             Sent by: cc
                                      Re: [OMPI users] Torque and OpenMPI
             12/18/07 01:45
             Please respond
             Open MPI Users

On Tue, 2007-12-18 at 11:59 -0700, Ralph H Castain wrote:
> Hate to be a party-pooper, but the answer is "no" in OpenMPI 1.2. We
> 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.

Can one not build OpenMPI without tm support and spawn remote jobs using
the other mechanisms, using only $PBS_NODEFILE (or a derivative of the
file that that points to) in the script?


Dr Terry Frankcombe
Physical Chemistry, Department of Chemistry
Göteborgs Universitet
SE-412 96 Göteborg Sweden
Ph: +46 76 224 0887   Skype: terry.frankcombe
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