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Re: [HTCondor-users] Concurrency Limits with Flocking
- Date: Wed, 10 Apr 2013 11:19:50 +0800
- From: <Greg.Hitchen@xxxxxxxx>
- Subject: Re: [HTCondor-users] Concurrency Limits with Flocking
It would be interesting/useful to see how to construct a global concurrency limit.
I have admin access to all the flocked negotiators.
From: htcondor-users-bounces@xxxxxxxxxxx [mailto:htcondor-users-bounces@xxxxxxxxxxx] On Behalf Of Greg.Hitchen@xxxxxxxx
Sent: Tuesday, 2 April 2013 9:26 AM
Subject: [ExternalEmail] Re: [HTCondor-users] Concurrency Limits with Flocking
Just testing at this stage as we have the "possibility" of some licensed software being used. For software using say, a license manager of some sort, this would not be a problem. From what I understand this particular licensed software is more depending on the "goodwill" of the user/s.
We would like to offer them a solution using Condor that we can tell them will "honour" the number of concurrently running instances.
From: Matthew Farrellee [mailto:matt@xxxxxxxxxx]
Sent: Thursday, 28 March 2013 9:45 AM
To: HTCondor-Users Mail List
Cc: Hitchen, Greg (CESRE, Kensington)
Subject: Re: [HTCondor-users] Concurrency Limits with Flocking
On 03/08/2013 12:47 AM, Greg.Hitchen@xxxxxxxx wrote:
> Just a quick question for those in the know.
> Does Condor's implementation of concurrency limits work across pools
> that allow flocking between them?
> My simple understanding from reading the manual would be no. It only
> works within a pool, as it relies on the collector/negotiator for enforcement?
> If that is the case, then is it possible to setup a global concurrency
> limit across multiple pools?
> At this stage this is a slightly academic question but may be
> necessary for us in the future.
Concurrency limits are scoped to a pool. The negotiator is responsible for managing the concurrency limits.
Flocking is a schedd opportunistically talking to a negotiator in a foreign pool. A foreign pool where the administrators have explicitly allowed you to flock.
You can construct a global concurrency limit, assuming you can configuration on the flock of negotiators.
What's the use case you're considering?
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