[HPGMG Forum] HPGMG release v0.1

Sam Williams swwilliams at lbl.gov
Mon Jun 9 15:59:22 UTC 2014


Preproduction Edison phase I and II evaluated 8 cores @ 2.6GHz and DDR3-1866.  Production Edison (XC30) is 12 cores @ 2.4GHz cores, and the DRAM is DDR3-1666.  This is 460GF/node and about 80-85GB/s of bandwidth (don't recall if we used triad or copy).


On Jun 9, 2014, at 8:51 AM, Vitali A. Morozov <morozov at anl.gov> wrote:

> Hello Jed,
> 
> I am looking at the result page
> 
> https://hpgmg.org/2014/05/15/fv-results/
> 
> and see that you provide STREAM-based memory bandwidth for some architectures. I suggest to specify a particular benchmark, let us say "triad", because the result of STREAM is benchmark-dependent.
> 
> For BG/Q, I have measured 29.3 GB/s/node on "triad". For Cray XC30, I have measured 48.6 GB/s/socket or 97.1 GB/s/node. This is slightly better than the numbers you have reported.
> 
> For Cray XC30, the flop rate is 518.4 GF per node. For Xeon E5-2697 v2 @ 2.7 GHz, each core can have 8 Flops/cycle - 4 way FMA - or 8 * 2.7 = 21.6 GFlops per core. 12 cores result in 259.2 GFlops per socket, 2 sockets give 518.4 GFlops.
> 
> Vitali
> 
> 
> 
> 
> On 06/07/2014 04:27 PM, Jed Brown wrote:
>> Mark Adams <mfadams at lbl.gov>
>>  writes:
>> 
>>> We are please to announce that hpgmg.org and the associated mailing
>>> list 
>>> hpgmg-forum at hpgmg.org
>>>  is officially available.
>>> 
>> Thanks, Mark.  To help kick off the discussion, I would like to call
>> attention to our recent blog posts describing "results".
>> 
>> The most recent announces the v0.1 release and includes a Kiviat diagram
>> comparing the on-node performance characteristics of CORAL apps and
>> several benchmarks running on Blue Gene/Q.
>> 
>>   
>> https://hpgmg.org/2014/06/06/hpgmg-01/
>> 
>> 
>> 
>> This earlier post shows performance on a variety of top machines:
>> 
>>   
>> https://hpgmg.org/2014/05/15/fv-results/
>> 
>> 
>> 
>> We are interested in better ways to collect and present the comparison
>> data as well as any characteristics that you think are important.
>> 
>> 
>> In addition to the general principles on the front page, some further
>> rationale is given at:
>> 
>>   
>> https://hpgmg.org/why/
>> 
>> 
>> None of this is set in stone and we would be happy to discuss any
>> questions or comments on this list.
>> 
>> 
>> Please encourage any interested colleagues to subscribe to this list:
>> 
>>   
>> https://hpgmg.org/lists/listinfo/hpgmg-forum
>> 
>> 
>> _______________________________________________
>> HPGMG-Forum mailing list
>> 
>> HPGMG-Forum at hpgmg.org
>> https://hpgmg.org/lists/listinfo/hpgmg-forum
> 
> _______________________________________________
> HPGMG-Forum mailing list
> HPGMG-Forum at hpgmg.org
> https://hpgmg.org/lists/listinfo/hpgmg-forum



More information about the HPGMG-Forum mailing list