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
<sam...@unimelb.edu.au <mailto:sam...@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/030963.html>
http://www.beowulf.org/pipermail/beowulf/2013-February/030971.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: sam...@unimelb.edu.au <mailto:sam...@unimelb.edu.au>
Phone: +61 (0)3 903 55545 <tel:%2B61%20%280%293%20903%2055545>
http://www.vlsci.org.au/ http://twitter.com/vlsci
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Dr Stuart Midgley
sdm...@sdm900.com <mailto:sdm...@sdm900.com>
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