[Swift-devel] Walltime in PBS submit files

[Tim Armstrong]

I'd been trying separately to understand the effect of the maxTime
parameter: it doesn't do what I intuitively expect it to either.  It seems
like if I set maxtime to x number of minutes, it submits jobs of at most x -
1 minutes duration.

Is this the intended behaviour?  Is maxTime rounded down to the nearest
minute?  Should I understand maxTime as meaning "only submit jobs that are
strictly less than durations"?

- Tim

On Fri, Jun 3, 2011 at 10:15 AM, Michael Wilde <wilde at mcs.anl.gov> wrote:

> Could you add a note on this to the trunk user guide?
>
> Thanks,
>
> Mike
>
>
> ------------------------------
>
> That did the trick. I bumped up the maxtime to 300 and it ran immediately.
> Thanks for the info!
>
> David
>
> On Fri, Jun 3, 2011 at 9:54 AM, Michael Wilde <wilde at mcs.anl.gov> wrote:
>
>> David,
>>
>> Im not sure what coasters is thinking here.  But first thing I would try
>> is to set the maxtime value in sites.xml (which is in integer seconds) to
>> something like 300 to make coasters realize that it can fit at least 10
>> 30-second app calls into the 300 second coaster block.
>>
>> With maxtime < maxwalltime coasters may be erroneously starting a block
>> but finding that its unable to fit *any* app calls into it.
>>
>> There are also settings you can apply (overallocation etc) to make maxtime
>> more of an "exact time" setting. For example, if you do this:
>>
>>     <profile namespace="globus" key="maxTime">1800</profile>
>>     <profile namespace="globus" key="lowOverAllocation">100</profile>
>>     <profile namespace="globus" key="highOverAllocation">100</profile>
>>
>> ...then each coaster block started should have a maxwalltime of 1800 secs.
>>
>> But your app maxwalltime needs to fit into this block time.
>>
>> - Mike
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Hello,
>>
>> I am trying to use the shared queue on Fusion. This queue requires a
>> walltime of less than one hour. I have all of the applications in my tc.data
>> file set up with a walltime of 30 seconds. In my sites.xml, I specify a
>> maxtime of 10. However, when Swift generates the PBS submit file, it
>> specifies a walltime of 00:00:00 which prevents it from running.
>>
>> How can I make Swift set the walltime in these PBS submit scripts?
>>
>> Thanks,
>> David
>>
>>
>> _______________________________________________
>> Swift-devel mailing list
>> Swift-devel at ci.uchicago.edu
>> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
>>
>>
>>
>>
>> --
>> Michael Wilde
>> Computation Institute, University of Chicago
>> Mathematics and Computer Science Division
>> Argonne National Laboratory
>>
>>
>
>
>
> --
> Michael Wilde
> Computation Institute, University of Chicago
> Mathematics and Computer Science Division
> Argonne National Laboratory
>
>
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> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
>
>
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