Question #215540 on Yade changed:
https://answers.launchpad.net/yade/+question/215540

Eugen Kubowsky posted a new comment:
Hey guys!
i guess its good to use this post for the results of the performance tests run 
with our server.
it has the following configuration:
- 2xIntel Xeon E5-2687W @3.1GHz each got 8 physical cores
- 128 GB RAM
- 240 GB SSD
- onboard Graphics Matrox G200

After we bought this new system I wanted to see how good its performance really 
is. Unfortunately its not as good as it was supposed to.
http://s7.directupload.net/file/d/3129/g4lz4tyl_pdf.htm
the server reaches its maximum performance between 8 and 14 cores. Thats kind 
of strange for me.
Yes, i heard of the aspect of increasing ammount of communication needed when 
using a lot of cores, but such a bad performance? Especially in more complex 
scenarios (i.e. more spheres) the server should profit from its multi cores, 
shouldnt it?
I guess a desktop computer would be as fast as our system ;)

So my questions are, 
1) whether the "--performance" check is suitable for multi core systems
2) how to improve performance?

thanks, Eugen

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