2009/11/23 Rob Fay <[log in to unmask]>:
>>> Details of what numbers to put for a nehalem machine with 2 processors,
>>> each with 4 cores, and each core with 2 threads would be useful too.
>>
>> Assuming that you run 1 job per thread, i.e. that these machines have 16
>> job slots, then they should count as 16 logical CPUs (and two physical).
>> You should also calculate the HEPSPEC by running 8 copies of the
>> benchmark per processor.
>>
> Out of curiosity, what if you don't run 1 job per thread? E.g. if you limit
> the box to, say, 12 job slots (for reasons of disk or network contention
> perhaps), what do you publish then?
>
Then you publish 12 logical CPUs, otherwise you scare the animals
(confuse the assumptions made about how logical CPU maps to "number of
allowed jobs".
Sam
> Rob
>
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> Robert Fay [log in to unmask]
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