[Swift-user] walltime in sites does not match the walltime of submitted job

[Michael Wilde]

MaxWallTime is the estimate/ceiling you provide Swift for your app tasks 
for this site.

I think that if you don't specify a MaxTime (which puts an upper bound 
on the wall time of the scheduler jobs which Swift/coasters will submit) 
then Swift uses what's in its ready-to-run task queue to determine the 
scheduler job walltime.

If you want shorter jobs (e.g. to not wait so long in the queue) then 
you should un-comment your maxtime tag in the sites entry and set it to 
what you want to see.  Be aware that you need to consider what your 
likely app task time will really be as you try to balance these two time 
limits.

- Mike

On 1/31/15 11:44 AM, Ketan Maheshwari wrote:
> Hi,
>
> On Blues, I submit a script with the following sites spec:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <config xmlns="http://www.ci.uchicago.edu/swift/SwiftSites">
> <pool handle="blues">
>   <execution provider="coaster" jobmanager="local:pbs"/>
>   <filesystem provider="local" url="none" />
> <!--  <profile namespace="globus" key="maxtime">2040</profile>-->
>   <profile namespace="globus" key="maxWalltime">03:40:00</profile>
>   <profile namespace="globus" key="jobsPerNode">1</profile>
>   <profile namespace="globus" key="slots">1</profile>
>   <profile namespace="globus" key="ppn">2</profile>
>   <profile namespace="globus" key="jobtype">single</profile>
>   <profile namespace="globus" key="nodeGranularity">16</profile>
>   <profile namespace="globus" key="maxnodes">16</profile>
>   <profile namespace="karajan" key="jobThrottle">2.20</profile>
>   <profile namespace="karajan" key="initialScore">10000</profile>
> <!--  <profile namespace="globus" key="keepSiteDir">true</profile>-->
> <workdirectory>/home/ketan/swift.workdir</workdirectory>
> </pool>
>
> The maxWalltime being 3 hours 40 minutes. However, the job that gets 
> submitted is with 11 hours of walltime:
>
> $ qstat
>
> bmgt1.lcrc.anl.gov <http://bmgt1.lcrc.anl.gov>:
>   Req'd  Req'd   Elap
> Job ID         Username Queue    Jobname    SessID NDS TSKS Memory 
> Time  S Time
> -------------- -------- -------- ---------- ------ --- ---- ------ 
> ----- - -----
> 851234.bmgt1.l ketan    batch    B0131-3911    --   16 32    --  11:00 
> Q   --
>
> Any clues?
>
> Thanks,
> Ketan
>
>
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-- 
Michael Wilde
Mathematics and Computer Science          Computation Institute
Argonne National Laboratory               The University of Chicago

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