[GE users] Olesen & derivated elements

Chaffard Remi (Consultant) remi.chaffard at consultant.volvo.com
Wed Nov 26 15:23:31 GMT 2008

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I agree, but if I do the first option:

limit lic1 = 6 (ie, unlimited)
limit lic2 = 0 (ie, don't use at all)

If interactive sessions take 2 lic1, then the derived resource will decrease to 4, but 8 licenses are still available (so we could set the value to 6, not 4).

I guess this is not a common configuration, I think I will keep the derived without limit, and add a resource in SGE with a fixed value of 6. In my starccm script, I will take both the lic_ccmppar and counter do it will work without migraine!

Thank you


-----Original Message-----
From: Olesen, Mark [mailto:Mark.Olesen at emcontechnologies.com] 
Sent: mercredi 26 novembre 2008 16:06
To: users at gridengine.sunsource.net
Subject: RE: [GE users] Olesen & derivated elements

> Subject: RE: [GE users] Olesen & derivated elements
> So, if I understand well:
> I have a total of 10 licenses (from the derived resource view). If I
> want to limit the derived to 6, I should simply limit a sub element to
> "-4"?

Not quite.
If you have 6 lic1 (eg, parallel) and 4 lic2 (eg, serial), you can limit
the derived to 6 in any combination of the following:

limit lic1 = 6 (ie, unlimited)
limit lic2 = 0 (ie, don't use at all)

or even
limit lic1 = 4 (ie, don't use 2 of the parallel licenses)
limit lic2 = 2 (ie, use 2 of the serial licenses)

But if the final application always takes the parallel licenses anyhow,
it won't actually reserve them at all.

I guess you could also specify 
limit lic2 = -4 (ie, reserve all 4 licenses for external use)
but this is a somewhat roundabout way of saying "0".

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