[Beowulf] Demo-cluster ideas

[Douglas Eadline]

> What I find interesting about this is that there's only a 3:1 difference
> between high and low.
>
> That's a pretty compelling argument that if you need a 10x speedup, you're
> not going to get it by "buy a faster computer", and that, rather,
> parallelism is your friend.

And the clocks go from 2.5 to 3.2 GHz.

I'm not sure how much farther multi-core can go
with adding cores.


>
> It would be interesting to look at this on a ops/$ or ops/Watt basis.. My
> guess will be that there's not a huge power difference (in terms of wall
> plug power) between the various options (certainly not 3:1), and there's
> probably not a 3:1 difference in price, either.
>
> I was looking at benchmarks for substantially lower end machines recently
> (ARMs, Atoms, bottom of the line i5s) for a signal processing problem and
> there's not a huge difference there, either.  To get a 10x difference, you
> have to be going WAY different technologies (like 8 bit microcontrollers
> or similar).

Interesting

--
Doug


>
>
>
> Jim
>
> -----Original Message-----
> From: Beowulf [mailto:beowulf-bounces at beowulf.org] On Behalf Of Douglas
> Eadline
> Sent: Wednesday, February 03, 2016 6:58 AM
> To: Olli-Pekka Lehto <olli-pekka.lehto at csc.fi>
> Cc: beowulf at beowulf.org
> Subject: Re: [Beowulf] Demo-cluster ideas
>
>
> To help gauge your performance, you can find HPL results for my Limulus
> machines here (Sandybridge to Skylake):
>
>   http://limulus.basement-supercomputing.com/wiki/LimulusBenchmarks
>
> I have NAS parallel results as well, I'll be posting them on Cluster
> Monkey real soon.
>
>
>
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>


-- 
Doug

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