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Re: [Condor-users] Dedicated Scheduling - Submit machine constraint
- Date: Tue, 17 Jul 2012 13:07:13 -0500
- From: Greg Thain <gthain@xxxxxxxxxxx>
- Subject: Re: [Condor-users] Dedicated Scheduling - Submit machine constraint
Deadlock is indeed the reason. Something a bit subtle about the way the
dedicated scheduler works is that it "holds onto" and accumulates
machines it gets from the negotiator until it gets enough to run a whole
parallel job. This process may take several negotiation cycles. The
negotiator doesn't know about parallel jobs. So, if more than one
scheduler were doing this, there would be a good possibility for deadlock.
I am trying to understand the motivation behind dedicated-scheduling jobs having to be submitted only from the "DedicatedScheduler" machine?
So, What if, multiple machines submit these jobs?
Can't they somehow allocate some "N" machines from Central Manager and proceed?
Will this cause some kind of deadlock?