Scott Marlowe wrote:
> On Tue, Aug 31, 2010 at 6:41 AM, Yeb Havinga <yebhavinga(at)gmail(dot)com> wrote:
>>> export OMP_NUM_THREADS=4
>> Then I get the following. The rather wierd dip at 5 threads is consistent
>> over multiple tries:
> I get similar dips on my server. Especially as you make the stream
> test write a large enough chunk of data to outrun its caches.
> See attached png.
Interesting graph, especially since the overall feeling is a linear like
increase in memory bandwidth when more cores are active.
Just curious, what is the 8-core cpu?
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