Re: [Condor-users] How to ensure jobs scheduled first to free nodes

["Peter F. Couvares" <pfc@xxxxxxxxxxx>]

Andrew,

That is exactly how I would do it, yes -- in fact, just this morning I 
sent this very solution to someone privately asking the same question.

-Peter


Andrew Zahn wrote:

> Hi,
>
> I would like to know how to ensure jobs are scheduled onto free nodes, 
>  that is 1 per node, rather then 1 per processor on a dual processor 
> node. Also, I would like to know how to configure the same situation 
> if the nodes are hyperthreaded and showing 4 processors.
>
> What we have come up with here is,  In order to send jobs first to 
> free nodes it can be used something like the condor_schedd 
> configuration variable APPEND_RANK:
>
>   http://www.cs.wisc.edu/condor/manual/v6.7/3_3Configuration.html#9795
>
> (to append an expression at the rank coming from the jobs)
>
> Something to consider the VM id is:
>
>   APPEND_RANK = (0 - VirtualMachineId)
>
> Is this the proper way to go about this?
>
> Thanks,
> Andrew Zahn
--
Peter Couvares                        University of Wisconsin-Madison
Condor Project Research               Department of Computer Sciences
pfc@xxxxxxxxxxx                       1210 W. Dayton St. Rm #4241
(608) 265-8936                        Madison, WI 53706-1685