Re: [Condor-users] Simple How-to question

["P. Larry Nelson" <lnelson@xxxxxxxx>]

Dan's simple How-to was the solution I was looking for.
Thanks Dan!

In our case, we now have a mix of Scientific Linux versions (SL4.8
and SL5.4) both for our compute nodes and submit nodes.  We wanted
the SL5.4 compute nodes to *only* accept jobs submitted by users who
added the specific requirements in their job submit description
file so their SL5.4 code would run on those SL5.4 nodes and *not*
on the SL4.8 nodes.

The rest of the users still running legacy SL4.8 code do not have to
change anything in their job submit description files, nor did we have
to modify the config file on the SL4.8 compute nodes.

Simple solution with no disruption to running jobs.

- Larry

Dan Bradley wrote on 5/14/2010 5:06 PM:
> Here's another example that I just added to the How-to recipes:
>
> https://condor-wiki.cs.wisc.edu/index.cgi/wiki?p=HowToReserveSlotForSpecialJobs
>
>
> --Dan
>
> David A. Kotz wrote:
> > Larry,
> >
> > We do something like that here by modifying the START condition on the
> > execute nodes.
> >
> > By default you have:
> >
> > UWCS_START = ( (KeyboardIdle > $(StartIdleTime)) \
> > && ( $(CPUIdle) || \
> > (State != "Unclaimed" && State != "Owner")) )
> >
> > We require the users to include Project and ProjectDescription in
> > their submit scripts by modifying this start condition to check for a
> > valid project name and for a non-empty project description like so:
> >
> > ValidProject = ((TARGET.Project =?= "ARCHITECTURE") || \
> > (TARGET.Project =?= "FORMAL_METHODS") || \
> > (TARGET.Project =?= "AI_ROBOTICS") || \
> >
> > etc ...
> >
> > and
> >
> > UTCS_START = ( (KeyboardIdle > $(StartIdleTime)) && \
> > ( $(CPUIdle) || \
> > (State != "Unclaimed" && State != "Owner")) && \
> > $(ValidProject) && (TARGET.ProjectDescription =!= UNDEFINED) )
> >
> > START = $(UTCS_START)
> >
> >
> > - dave
> >
> >
> > P. Larry Nelson wrote:
> > > Hello,
> > >
> > > I've looked on the How To Admin Recipes page here:
> > > https://condor-wiki.cs.wisc.edu/index.cgi/wiki?p=HowToAdminRecipes
> > >
> > > but I'm not seeing something very simple I want to do.
> > >
> > > How does one configure a particular compute node to *not* accept
> > > *any* jobs unless the user submitting a job adds a specific requirement
> > > to his/her submit description file?
> > >
> > > (The specific requirement is listed as a specific custom attribute
> > > in the compute node's ClassAd.)
> > >
> > > Condor version: 7.2.1
> > >
> > > Thanks!
> > > - Larry
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