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Subject: Re: [OMPI users] Condor and MPI
From: Ralph Castain (rhc_at_[hidden])
Date: 2011-04-15 09:44:06


On Apr 15, 2011, at 2:59 AM, Reuti wrote:

> Hi,
>
> Am 15.04.2011 um 07:25 schrieb Asad Ali:
>
>> <snip>
>> Yes. The entire job gets restarted.
>
> maybe this is caused by a signal sent to the job by Condor, so that it gets terminated and as a result Condor restarts it. Can you trap the signals in your appliaction for a test?
>
>
>> If so, you had best talk to the Condor folks - it has nothing to do with Open MPI, but is due to a job control flag you are passing to Condor.
>>
>> I have talked to them several times. But most of the cluster users are non-mpi users and thus they don't have much knowledge about the configuration of MPI with Condor.
>> If you know any person who uses Condor for running MPI jobs then please let me know.
>
> Is the use of Open MPI supported by Condor? In former times they had a special universe for MPICH(1) and only for an older version to run parallel jobs under Condor. Did this change?

See https://bugzilla.redhat.com/show_bug.cgi?id=537232

At one time, it appears such a script existed. You might start with the one offered here, and/or check on the web for updates.

I would also go to the Condor web site:

http://www.cs.wisc.edu/condor/

A search for "openmpi" revealed several presentations on how to make this work.

>
> -- Reuti
>
>
>> Cheers,
>>
>> Asad
>>
>>
>>
>> On Apr 14, 2011, at 6:37 PM, Asad Ali wrote:
>>
>>> Hi all,
>>>
>>> I am using Condor to run my MPI jobs on a large cluster of nodes. The jobs run fine but after sometimes they automatically get restarted. What can be the reason?
>>>
>>> Cheers,
>>>
>>> Asad
>>>
>>> --
>>> "A Bayesian is one who, vaguely expecting a horse, and catching a glimpse of a donkey, strongly believes he has seen a mule."
>>> _______________________________________________
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>>
>>
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>>
>>
>> --
>> "A Bayesian is one who, vaguely expecting a horse, and catching a glimpse of a donkey, strongly believes he has seen a mule."
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