Hi Reuti,

On Tue, 2011-02-22 at 20:39 +0100, Reuti wrote:
> Am 22.02.2011 um 15:51 schrieb Andreas Haupt:
> 
> > Hi Reuti and Richard,
> > 
> > hmm, actually the scheduler configuration should be correct for such a
> > setup. But maybe I just can't see the wood for the trees ...
> > 
> > [oreade38] ~ % qconf -ssconf
> > algorithm                         default
> > schedule_interval                 0:0:1
> 
> Doesn't put this a high load on the qmaster? Especially when you have a low 
> value for ...

Well, yes ... I did just set up two different batch systems the same
way. But you are right: for this kind of application this is not needed.
I'll change it.

> > max_reservation                   250
> > default_duration                  9999:00:00
> 
> These settings look fine.
> > Do you see a common mistake here? There are < 100 waiting jobs in the
> > queue most of the time.
> 
> When I'm aware that there are always waiting jobs, the flush_submit_sec could 
> even be higher, as there are most likely no free slots anyway. But this 
> shouldn't influence the odd behavior you observe. With smaller parallel jobs 
> which are waiting to get their slots it's working?

I don't have enough statistics to answer this question correctly. I
think this is a general problem but I just see it in the case the I
mentioned.

> To investigate, you could also try to submit an advance reservation for some 
> point in the future (unfortunately there is no option to `qrsub` to request 
> it without a given start time [and I don't mean  "now" here], but you get the 
> earliest time output when it could be granted). Is such a reservation granted 
> in your case?

I'll try that.

Thanks to all the others for their postings. So to me it looks like
there is a real problem in the code. Unfortunately I'm not a coder - so
maybe I will find out what's going wrong when I deeply debug this, but I
do not have any possibility to fix it except for workarounds.

Cheers & thanks again,
Andreas
-- 
| Andreas Haupt             | E-Mail: [email protected]
|  DESY Zeuthen             | WWW:    http://www-zeuthen.desy.de/~ahaupt
|  Platanenallee 6          | Phone:  +49/33762/7-7359
|  D-15738 Zeuthen          | Fax:    +49/33762/7-7216

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