On Feb 24, 2012, at 3:22 PM, Francis Poulin wrote:
> Thanks for the link. I did the tests on an SGI SMP machine that, if I
> understand correctly, shares the memory much better than most other systems.
> I will read about these different components and see what I can figure out.
Yes, you could be right. Unlike traditional linux that machine is more
likely to do the right thing by default.
Barry
>
> Thanks,
> Francis
>
>>
>> You need to understand the issues of memory bandwidth shared between cores
>> and between processors, memory affinity and thread affinity ("binding") see
>> http://www.mcs.anl.gov/petsc/documentation/faq.html#computers
>>
>> Barry
>>
>
