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[Bruno Chareyre <question244277@xxxxxxxxxxxxxxxxxxxxx>]

Question #244277 on Yade changed:
https://answers.launchpad.net/yade/+question/244277

Bruno Chareyre proposed the following answer:
> yade has no good parallelizied code. so you get no linear speedup and
more than 4 thread are in my experience not usefull

Worst than "no good parallelized", yade runs contact detection on one
thread whatever the number of available threads. For more than 100k
elements and j>1, this can be 70% of the computation time or more.

I would be glad if you could try a parallel version of the collider on
your hardware. I pushed it yesterday to my github branch (see
https://lists.launchpad.net/yade-dev/msg10498.html, and let us keep
discussion in this other thread).

Bruno

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