Re: [HTCondor-users] What's a "resource" in the definition of RUP

[Brian Bockelman <bbockelm@xxxxxxxxxxx>]

Hi Daniel,


>From http://research.cs.wisc.edu/htcondor/manual/v8.1/3_3Configuration.html:
"""
SlotWeight
This may be used to give a slot greater weight when calculating usage, computing fair shares, and enforcing group quotas. For example, claiming a slot with SlotWeight = 2 is equivalent to claiming two SlotWeight = 1 slots. The default value is Cpus, the number of CPUs associated with the slot, which is 1 unless specially configured. Any expression referring to attributes of the slot ClassAd and evaluating to a positive floating point number is valid.
"""

SlotWeight is an expression.  So, if you have a benchmark which outputs to an attribute named HEPSPEC, you can set:

SlotWeight = HEPSPEC * Cpus

You may want to look up the details about how to run per-node benchmarks when HTCondor starts.  Alternately, you can just statically assign the benchmark attribute if you don't compute it on node startup..

Brian

On Nov 8, 2013, at 7:25 AM, Pek Daniel <pekdaniel@xxxxxxxxx> wrote:

> Hi,
> 
> I'd like to understand the fairshare model of Condor. I read through
> the relevant docs, but I don't really get the definition of the
> "resource" term:
> "... the RUP of a user equilibrates to the number of resources used by
> that user."
> 
> Is it possible in respect with the priority progression to take into
> account the fact, that some machines/cores are slower than others, and
> the user shouldn't be punished for his job may end up on an older node
> with weaker hardware?
> 
> Thanks,
> Daniel
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