Re: [Condor-users] user_job_wrapper and class ads

[Robert Rati <rrati@xxxxxxxxxx>]

In 7.4.0, there is an environment variable that condor sets for the 
user_job_wrapper that contains the location of the job ad.  The 
user_job_wrapper should get the path/filename from the environment 
variable '_CONDOR_JOB_AD'.

Rob

Dan Bradley wrote:
> Hi Jon,
>
> In Condor 7.4.0, the job ClassAd will be available as a file (named 
> .job.ad) in the job's scratch area on the worker node.
>
> In Condor 7.2, the best mechanism that I can think of is to pass the 
> information about the job in the job's environment.  In your case, this 
> does involve duplication, though I suppose you could do things like this:
>
> In the submit file:
>
> environment = RequiresWholeMachine=true
>
> In the submit-side config file:
>
> RequiresWholeMachine = regexp("RequiresWholeMachine=true",MY.Environment)
> SUBMIT_EXPRS = $(SUBMIT_EXPRS) RequiresWholeMachine
>
> So the user only has to define RequiresWholeMachine once, in the 
> environment, and then the RequiresWholeMachine ClassAd attribute is 
> automatically injected for them as an expression that searches through 
> the environment for the environment variable of the same name.  It's a 
> bit of a strange way to do things, but I think it should work.
>
> --Dan
>
> Jonathan D. Proulx wrote:
> > is there any way for a user_job_wrapper script to see into the class
> > ad for the job it's executing?
> >
> > I could make users set envirounment variables to get the info I need,
> > but they would also  need to set the same things as class ad
> > attributes and duplication is bad.
> >
> > specificly this goes along with my wholessystem scheduling issues.
> > submit files currently push "+RequiresWholeMachine = True" which has
> > many scheduling implications, for those same jobs I want a wrapper
> > that waits untill system load drops, but I do not want this to affect
> > other jobs.
> >
> > I could also make the users wrap their own jobs, but that's still two
> > things (though arguably defferent enough to be meaningful as someone
> > may want all the processors in a system bu tnot need to be 100% sure
> > everything is quiet before starting to execute)
> >
> > Thanks,
> > -Jon
> >
> >
> >
> >
> >
> >
> >
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