Re: [condor-users] priority problem

[Erik Paulson <epaulson@xxxxxxxxxxx>]

On Thu, Oct 23, 2003 at 10:06:58AM +0200, Pablo Abad wrote:
> That´s exactly my problem, if you look at the condor_submit script, the job
> with lower numerical priority is lu.W.4, but when I submit the script this
> job executes in first place,
> my question is, is this normal?
> 

Yes. The condor_schedd does not honor job priorities for the MPI universe.
I'd say we run them FIFO, subject to available resources, but I'm not sure
you can rely on that, but it the normal case it will usually be FIFO.

-Erik

> ----- Original Message ----- 
> From: "Mark Silberstein" <marks@xxxxxxxxxxxxxxxxxxxxxxx>
> To: <condor-users@xxxxxxxxxxx>
> Sent: Thursday, October 23, 2003 2:28 AM
> Subject: Re: [condor-users] priority problem
> 
> 
> > Pablo,
> > Unlike LINUX/UNIX systems, Condor uses the following priority scheme:
> > <The following is FROM the `man condor_submit`:
> >   priority = <priority>
> >
> >           Condor  job  priorities  range  from -20 to +20, with 0
> >           being the default. Jobs with higher numerical  priority
> >           will  run  before  jobs  with lower numerical priority.
> >           Note that this priority is on a per user basis; setting
> >           the priority will determine the order in which your own
> >           jobs are executed, but will have no effect  on  whether
> >           or not your jobs will run ahead of another user's jobs.
> >
> >
> > Cheers,
> > Mark
> > On Wed, 2003-10-22 at 18:13, Pablo Abad wrote:
> > > Hello everybody;
> > >
> > > I am trying to install condor in a small cluster ( I have started
> > > recently), There is a frontend machine, acting as condor master and
> > > four nodes configurated as dedicated resources.
> > >
> > > The script I use with condor_submit is as follows:
> > >
> > > universe = MPI
> > > executable = lu.W.4
> > > priority = 0
> > > machine_count = 4
> > > output = lu.W.4.out
> > > queue
> > >
> > > universe = MPI
> > > executable = lu.W.2
> > > priority = 5
> > > machine_count = 2
> > > output = lu.W.2.out
> > > queue
> > >
> > > universe = MPI
> > > executable = lu.W.1
> > > priority = 10
> > > machine_count = 1
> > > output = lu.W.1.a.out
> > > queue
> > >
> > > universe = MPI
> > > executable = lu.W.1
> > > priority = 10
> > > machine_count = 1
> > > output = lu.W.1.b.out
> > > queue
> > >
> > > lu.W.* is an mpi job which uses * processors
> > >
> > > My intention is that the jobs using less processors execute first, so
> > > i put them a higher priority. But condor starts executing lu.W.4 in
> > > first place.
> > >
> > > am I doing anything wrong? or, do I have to do anything else?
> > >
> > > another question; could condor do this itself ? I mean, can condor
> > > automatically choose jobs with few processes first?
> > >
> > > Thanks for your help,
> > >
> > > Pablo.
> > >
> >
> > Condor Support Information:
> > http://www.cs.wisc.edu/condor/condor-support/
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