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From: Phil Ehrens (pehrens_at_[hidden])
Date: 2004-03-22 11:54:34


Karl Forner wrote:
> Phil Ehrens wrote:
>
> >Don't create a seperate lam user for each user, but DO create
> >more than one. If one account suffices when no failures occur,
> >and if failures costs you 50% of your duty cycle, have two users,
> >and so forth, using them in round-robin fashion. That's what we
> >do, and we achieve job rates of > 2000 jobs per hour over weeks
> >of running.
> >
> >
> I tried once a workaround like this, using the session prefix feature,
> but sometimes the lamboot command hung, and it became hard to debug and
> maintain.

I am not using the session prefix feature, and this is not a workaround.
This is the normal way of operating a high performance batch processing
environment... let the operating system figure out what belongs to which
job and you don't have to.

I never experience lamboot hangs, and, as I say, we are getting continuous
job throughput of >2000 jobs/hr with typically 6-8 users active, so that
is as many users as you would ever have to create in all likelihood.

> If I has to spend so more time, I'd prefer improving LAM than my private
> software, kind of deserved contribution :-)

Noble, but lam is not a batch processing environment.

-- 
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