[Beowulf] Not all cores are created equal

[John Hearns]

> I contemplated doing this on our Barcelona cluster, but
> sacrificing 1 core in 8 was a bit too much of a high price
> to pay.  But people with higher core counts per node might
> find it attractive.
>
> My prediction for the New Year - someone will produce a dedicated HPC node
with multicore Nehalems,
plus a cheap, single core processor for OS 'housekeeping' tasks.
Maybe such a board will also have slots for GPU accelerators too.
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