[Beowulf] [External] Re: HPCG

[Benson Muite]

Great. Considerations some other centers have had can be found at:
https://parallel.computer/

On 8/7/20 6:39 PM, Prentice Bisbal via Beowulf wrote:
> Thanks for the list. Most of them  I've already come across in my 
> search, but the AMD HPC guide is one I haven't come across before that 
> will definitely be handy.
> 
> -- 
> Prentice
> 
> On 8/7/20 5:02 AM, Benson Muite wrote:
>> Maybe the following are helpful:
>>
>> https://sx-aurora.github.io/posts/hpcg-tuning/
>> https://www.hpcadvisorycouncil.com/pdf/HPCG_Analysis_POWER8.pdf
>> https://link.springer.com/chapter/10.1007/978-3-030-50743-5_21
>> https://ulhpc-tutorials.readthedocs.io/en/latest/parallel/hybrid/HPCG/
>> https://www.intel.com/content/dam/www/public/us/en/documents/presentation/hpc-clusters-best-practices-performance-study.pdf 
>>
>> http://developer.amd.com/wp-content/resources/56420.pdf
>> https://upcommons.upc.edu/bitstream/handle/2117/116642/1HPCG_shared_mem_implementation_tech_report.pdf?sequence=8&isAllowed=y 
>>
>> https://armkeil.blob.core.windows.net/developer/Files/downloads/hpc/files/Arm-HPC-UG-ISC18/GoingArm_SC18_BSC.pdf 
>>
>> https://dl.acm.org/doi/10.1145/3182177
>>
>> 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,
>>>     OMP2012)/
>>>     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.
>>>
>>> https://www.spec.org/order.html
>>>
>>> -- 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>>:
>>>>>
>>>>> Beowulfers,
>>>>>
>>>>> 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.
>>>>>
>>>>> -- 
>>>>> Prentice
>>>>>
>>>>> _______________________________________________
>>>>> 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 
>>>>> https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
>>>>
>>>> _______________________________________________
>>>> 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 
>>>> https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> 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
>>>
>>
>> _______________________________________________
>> 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
>