[Swift-devel] trunk-cobalt block task ended prematurely

Mihael Hategan hategan at mcs.anl.gov
Wed Mar 4 15:12:28 CST 2015


I'm still confused. I don't see any difference in stdin handling between
_swiftwrap and _swiftwrap.staging (which is used for direct staging).

Maybe we should always feed the app a /dev/null if there is no stdin=
specified.

Mihael

On Wed, 2015-03-04 at 08:50 -0600, Ketan Maheshwari wrote:
> I added stdin="/dev/null" to app invocation line and it has worked now.
> --Ketan
> 
> On Wed, Mar 4, 2015 at 8:44 AM, Ketan Maheshwari <ketan at mcs.anl.gov> wrote:
> 
> > Please find one with 59 minutes attached. --Ketan
> >
> > On Tue, Mar 3, 2015 at 11:17 PM, Mihael Hategan <hategan at mcs.anl.gov>
> > wrote:
> >
> >> You are using coasters, so what gets queued is the block, not the job.
> >>
> >> You should specify execution.options.maxJobTime = "00:59:00".
> >>
> >> Then you can probably do a walltime of about "00:50:00". But 7 minutes
> >> vs. 5 minutes isn't much of a difference.
> >>
> >> Mihael
> >>
> >> On Tue, 2015-03-03 at 22:28 -0600, Ketan Maheshwari wrote:
> >> > Attached is a log for maxWalltime set to 7 minutes beyond which the job
> >> > does not get submitted because of the 1 hour walltime limit of Cetus.
> >> > --Ketan
> >> >
> >> > On Tue, Mar 3, 2015 at 10:15 PM, Ketan Maheshwari <ketan at mcs.anl.gov>
> >> wrote:
> >> >
> >> > > When I check queue with qstat, I see the job is submitted for 40
> >> minutes.
> >> > > When I try to increase maxWallTime the workflow does not get submitted
> >> > > because on Cetus maximum allowed walltime is 60 minutes. --Ketan
> >> > >
> >> > > On Tue, Mar 3, 2015 at 10:03 PM, Hategan-Marandiuc, Philip M. <
> >> > > hategan at mcs.anl.gov> wrote:
> >> > >
> >> > >> Hi,
> >> > >>
> >> > >> Looks like almost exactly 5 minutes to me:
> >> > >>
> >> > >> 2015-03-04 01:45:43,943+0000 INFO  Execute TASK_STATUS_CHANGE
> >> > >> taskid=urn:R-3-0-2-1425432781969 status=2
> >> > >> workerid=0304-3301040-000000:000000
> >> > >> 2015-03-04 01:50:44,676+0000 INFO  Execute TASK_STATUS_CHANGE
> >> > >> taskid=urn:R-3-0-2-1425432781969 status=5 Walltime exceeded
> >> > >>
> >> > >> Which is what the config file is asking for:
> >> > >>
> >> > >> app.bgsh {
> >> > >>   env.SUBBLOCK_SIZE: "16"                                 # [R] line
> >> 27
> >> > >>   executable: "/home/ketan/SwiftApps/subjobs/bg.sh"       # [R] line
> >> 25
> >> > >>   maxWallTime: "00:05:00"                                 # [R] line
> >> 26
> >> > >> }
> >> > >>
> >> > >> Again, the wrapper log shows the app as still running. Last line is:
> >> > >> Progress  2015-03-04 01:45:43.971393118+0000  EXECUTE
> >> > >>
> >> > >> Please do me a favor and increase the walltime to one hour and let's
> >> see
> >> > >> what happens then.
> >> > >>
> >> > >> If it still doesn't finish after one hour, we could try to strace it
> >> and
> >> > >> see what is happening there.
> >> > >>
> >> > >> Mihael
> >> > >>
> >> > >> On Tue, 2015-03-03 at 19:53 -0600, Ketan Maheshwari wrote:
> >> > >> > Please find the log attached. --Ketan
> >> > >> >
> >> > >> > On Tue, Mar 3, 2015 at 7:03 PM, Hategan-Marandiuc, Philip M. <
> >> > >> > hategan at mcs.anl.gov> wrote:
> >> > >> >
> >> > >> > > On Tue, 2015-03-03 at 15:42 -0600, Ketan Maheshwari wrote:
> >> > >> > > > Slow network looks unlikely to be a cause:
> >> > >> > >
> >> > >> > > It's the only variable obvious, so I wouldn't say that.
> >> > >>
> >> > >> I meant "only obvious variable" there.
> >> > >>
> >> > >>
> >> > >>
> >> > >
> >>
> >>
> >> _______________________________________________
> >> Swift-devel mailing list
> >> Swift-devel at ci.uchicago.edu
> >> https://lists.ci.uchicago.edu/cgi-bin/mailman/listinfo/swift-devel
> >>
> >
> >





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