[Beowulf] bring back 2012?

[Stu Midgley]

Phil (of Lustre fame) captures some of it here...

https://www.hpcwire.com/2016/03/23/downunder-geosolution-leverages-xeon-phi-improved-seismic-processing/

On Fri, Aug 19, 2016 at 10:30 PM, Prentice Bisbal <pbisbal at pppl.gov> wrote:

> I'm not going to dispute your claims, but I think you're probably a
> statistical anomaly in this regard. I'm guessing your code isn't that old,
> so it was built using current 'best practices' for parallelization (loop
> independence, data parallelism, overlapping communication and computation,
> etc) for the get-go, or was at least kept 'modern'  which made it easy for
> the compilers to optimize for the Phis.
> Can you comment on this?
>
> Prentice
>
> On 08/18/2016 09:28 PM, Stu Midgley wrote:
>
> we get EXCELLENT performance from the phi's... just look at our marketing
> with Intel.
>
> The 72XX series are also superb.
>
> On Fri, Aug 19, 2016 at 7:41 AM, Christopher Samuel <samuel at unimelb.edu.au
> > wrote:
>
>> On 18/08/16 00:10, Prentice Bisbal wrote:
>>
>> > I wouldn't be so glad. You're still going to have to rewrite your code
>> > as mentioned above to get any meaningful performance.
>>
>> To be fair to Stu though he did post back in 2013 that he got good
>> performance improvements on his codes on Xeon Phi for little initial
>> effort, so that's why they're so attractive to him.
>>
>> http://www.beowulf.org/pipermail/beowulf/2013-February/030963.html
>>
>> http://www.beowulf.org/pipermail/beowulf/2013-February/030971.html
>>
>> To us though they've proved not that useful, we can only run them
>> in accelerator mode (due to external constraints) and so we've had
>> virtually 0 uptake. :-(
>>
>> All the best,
>> Chris
>> --
>>  Christopher Samuel        Senior Systems Administrator
>>  VLSCI - Victorian Life Sciences Computation Initiative
>>  Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545
>>  http://www.vlsci.org.au/      http://twitter.com/vlsci
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>
>
>
> --
> Dr Stuart Midgley
> sdm900 at sdm900.com
>
>
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-- 
Dr Stuart Midgley
sdm900 at sdm900.com
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