Re: [Condor-users] job is not kept in queue even though execute machine is busy

[boson code <bocode@xxxxxxxxx>]

Thank you very much Ian and Jason. The Requirements _expression_ DID work!!

On Thu, Jan 29, 2009 at 5:59 AM, Ian D. Alderman <ialderman@xxxxxxxxxxxxxxxxxx> wrote:

On Jan 28, 2009, at 4:23 PM, boson code wrote:

> Hi Jason,
>
> Thank you very much for the reply. The machine on which I want the
> jobs to be run is a multi core but I made it  look like single core
> (using NUM_CPUS in config file).
> I'll try the requirements _expression_, but my question is if the
> machine is busy, does condor keep the other jobs (which want the
> same target machine) in queue or does it try to execute them on the
> target machine irrespective of wheather the machine is busy or not?

Hi,

Condor should keep the jobs in the queue if you change the
configuration as Jason suggests.

-Ian

> RSVP
> On Wed, Jan 28, 2009 at 6:59 PM, Jason Stowe <jstowe@xxxxxxxxxxxxxxxxxx
> > wrote:
> Boson,
> > is my job submission file:
> >
> > universe=vanilla
> > executable=t.bat
> > Rank=(machine=="xxx")
> You should use the Requirements _expression_, not Rank, for a hard
> requirement. A job's Rank _expression_ is a preference, i.e. it will
> make your jobs prefer running on that machine, but they will still be
> able to run elsewhere. If you change the setting to:
> Requirement = (Machine == "xyz")
> Condor will only schedule jobs to that machine.
>
> Another feature to be aware of is that by default Condor will
> advertise slots for all of machine 'xyz's cores. Running jobs
> generally take up one slot. If there are more than 1 cores, when you
> submit the second job, it will run in the second, still-idle core.
>
> To see how many slots are present for a machine 'xyz', type
> 'condor_status xyz'
>
> Hope this helps,
> Jason
>
> On Wed, Jan 28, 2009 at 5:57 AM, boson code <bocode@xxxxxxxxx> wrote:
> > Hello,
> >
> > I'm a newbie and I've installed condor on 5 windows xp machines.
> I've want
> > to execute a job on one particular machine (from another machine)
> and here
> > is my job submission file:
> >
> > universe=vanilla
> > executable=t.bat
> > Rank=(machine=="xxx")
> > output=logs/toutput.log
> > log=logs/tcondor.log
> > notification=never
> > queue
> >
> > The job is getting executed and the target machine is busy. Now I
> want to
> > submit another job to the same machine (while the first job is
> still being
> > executed). I thought condor will queue this job until the target
> machine
> > becomes available since it is busy currently executing first job.
> But the
> > second job is immediately submitted. What is the reason for this?
> Why is
> > condor not waiting for the first job to finish before it can
> execute the
> > second job?
> >
> > Please help
> >
> > Thanks in advance.
> >
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>
>
>
> --
> ===================================
> Jason A. Stowe
> cell: 607.227.9686
> main: 888.292.5320
>
> Cycle Computing, LLC
> Leader in Condor Grid Solutions
> Enterprise Condor Support and Management Tools
>
> http://www.cyclecomputing.com
> http://www.cyclecloud.com
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--
===================================

Ian D. Alderman
office: 608.554.4605

main: 888.292.5320

Cycle Computing, LLC
Leader in Condor Grid Solutions
Enterprise Condor Support and Management Tools

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