[GE users] Licenses by host not by slot
reuti at staff.uni-marburg.de
Tue Jan 31 14:16:15 GMT 2006
although I can't provide a clean implementation for this setup for
now, it's interesting that this would be easy to set up if there
would be a tunable limit of active queue instances (independent from
the number of slots used in each instance) per queue.
So the question for any forthcoming enhancement of limits of cluster
queues: would a limit of "total used slots" or "total used queue
instances" be more useful - or both?
Am 30.01.2006 um 23:06 schrieb asa hammond:
> Hello all. I have a licensing situation I have not run across in
> past postings.
> I have a software application which is licensed per host, ie if one
> token is grabbed for a host then an unlimited number of tokens can
> be taken out for that host. There are only a limited number of
> these tokens and I want any machine to be able to use them. I have
> a bunch of machines with 2 slots and currently I have a global
> complex foo set to 10 but this will only let 10 tokens at a time be
> checked out and it often happens that the tokens are checked out
> onto only 5 machines (two per host) and thereby I am not using up
> the the licenses in the most efficient manner. Is there a way to
> spread these out? Is this the $round_robin stuff?
> One setup I have tried involved just giving each of 10 machines a
> host complex of foo=2 but then if those machines are crunching away
> on other things I am not able to use those tokens till those
> machines are available.
> I suppose some method would work where I only allow each machine to
> check out one of the foo licenses, and then in the header of my
> crunch script I can do some complex modification on the local
> machine to add another token to it. But then how do I police this
> when the jobs end? I can have a chaser at the end of my script
> which decrements the host available amount, but what if a script
> crashes out without running the chaser? Then I need to have a
> global sweeper process which runs every once in a while like the
> spiffy Olesen method. My app does not use flexlm, but I could write
> my own loads script a la Olesen I suppose. Any slicker methods?
> Thanks for the consideration.
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