benson_muite at emailplus.org
Fri Aug 7 02:02:36 PDT 2020
Maybe the following are helpful:
On 8/7/20 11:31 AM, Jim Cownie wrote:
>> Source is unfortunately only accessible for SPEC members.
> Spec HPG <https://www.spec.org/hpg/> (“High Performance Group”)
> benchmarks are available free to “Non-profit/educational” users:
> /Non-profit/educational pricing for HPG suites (ACCEL, MPI2007,
> The HPG benchmarks are available free of charge to organizations
> which qualify for the non-commercial license
> <https://www.spec.org/order.html#hpgcommercial> by submitting a
> request <https://www.spec.org/hpgdownload.html> for a license. As
> with all non-profit/educational licenses, the software is licensed
> to the organization rather than an individual.
> -- Jim
> James Cownie <jcownie at gmail.com <mailto:jcownie at gmail.com>>
> Mob: +44 780 637 7146
>> On 6 Aug 2020, at 20:32, Jan Wender <j.wender at web.de
>> <mailto:j.wender at web.de>> wrote:
>> Hi Prentice,
>> If all you want to compare is the performance of one CPU, then you
>> could use the SPEC benchmarks, SPECint and SPECfp. Both are available
>> for many CPUs at spec.org <http://spec.org>. Source is unfortunately
>> only accessible for SPEC members.
>> Best, Jan
>> Jan Wender - j.wender at web.de <mailto:j.wender at web.de>
>>> Am 05.08.2020 um 20:09 schrieb Prentice Bisbal via Beowulf
>>> <beowulf at beowulf.org <mailto:beowulf at beowulf.org>>:
>>> Do any of you have any experience using HPCG as a benchmark. I'm
>>> trying to compare the performance of several different processors for
>>> an upcoming purchase. I've already run LINPACK, and now I'd like to
>>> run HPCG. It seems the only tuning parameter is the size of the local
>>> grid in the x,y,z dimensions.
>>> While the guidelines say to increase the gridsize until the job
>>> consumes 1/4 or more of RAM, my testing has shown that as the
>>> gridsize goes up, so does the performance, and it keeps going up for
>>> me until I consume all the memory and the job gets killed by Slurm
>>> for exceeding memory requirements.
>>> I've been doing a lot of Google searching for how to tune HPCG for
>>> maximum results, and there are some papers for tuning HPCG for large
>>> supercomputers. In these cases, they use x,y,z dimensions that are
>>> not necessarily equal, but I don't understand how they determined to
>>> use these unique values for x,y,z.
>>> When I compare my HPL results to my HPCG results, I'm getting HPCG
>>> results that are 0.3 - 0.5% of HPL. On the HPCG Top500 list, most
>>> systems are getting 2-3% of HPL, so I'm off by an order of magnitude.
>>> Beowulf mailing list, Beowulf at beowulf.org
>>> <mailto:Beowulf at beowulf.org> sponsored by Penguin Computing
>>> To change your subscription (digest mode or unsubscribe) visit
>> Beowulf mailing list, Beowulf at beowulf.org <mailto:Beowulf at beowulf.org>
>> sponsored by Penguin Computing
>> To change your subscription (digest mode or unsubscribe) visit
> Beowulf mailing list, Beowulf at beowulf.org sponsored by Penguin Computing
> To change your subscription (digest mode or unsubscribe) visit https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
More information about the Beowulf