yade-dev team mailing list archive

[Janek Kozicki <janek_listy@xxxxx>]

My PC has 8 cores, 2*Opteron 2378.

I have been testing speed with different number of cores. And to my
surprise I must tell you, that when more than 5 cores are used - the
speed drastically drops down!

For instance with 4 cores is is steady 200it/sec.
On 6-8 cores it is 1 it/sec, and occasionally (less than 5% of the
time) the speed jumps up to 2000it/sec). It is visible also in
OpenGL window - everything is stalled, and after 10 seconds it
suddenly moves extremely fast, for 0.5 of sec. Then again everything
stalls.

-- 
Janek Kozicki                               http://janek.kozicki.pl/  |