On Wed, 30 Dec 2015 04:59:05 PM Simpson Lachlan wrote:

> Ohhh, thankyou. This is the first I've heard of this being necessary.( I saw
> it in the docs, but brushed over it)

I think it's only really necessary for XDMoD which we've only just started 
playing with (it looks really nice), but I've put default and maximum 
walltimes on systems I manage for around a decade now.  Originally we did it 
to enable planning outages as in my previous job there were some 
mathematicians who would run codes for arbitrarily long times (well over 3 
months).

> Do you have a recommended default time? Your 10 minute limit seems rather
> short?

That's deliberate, it's meant to force users to think about what they need 
rather than just taking the default and making it harder for backfill to work 
efficiently.

> And Max limit...iirc V3 had a max limit of 96 days or something - I feel
> like a week should be enough, but my colleague tells me that some whole of
> genome sequencing can take at least that long...

Our defaults are:

PartitionName=DEFAULT MaxTime=30-0 DefaultTime=0:10:0

So that's 30 days maximum.  We have people run jobs for a couple of weeks 
easily.

All the best,
Chris
-- 
 Christopher Samuel        Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: [email protected] Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/      http://twitter.com/vlsci

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