yade-users team mailing list archive

[Anton Gladky <gladky.anton@xxxxxxxxx>]

Thanks, Bruno, for the major changes!
I will try to test it and let you know.

Anton



On Mon, Jan 23, 2012 at 4:39 PM, Bruno Chareyre
<bruno.chareyre@xxxxxxxxxxx> wrote:
> Hi all,
>
> The branch with optimized contact detection has been merged with trunk in
> bzr3000.
> According to my last tests and roughly speaking, yade is 3 times faster
> after this commit, but the result will be worst or better depending on the
> number of particles, the number of threads, the constitutive law used, the
> velocity of bodies, and a few other things.
>
> If you don't compile yade, you can try the new version by installing or
> updating the yade-daily package.
> A few timings are reported on the wiki at
> https://www.yade-dem.org/wiki/Colliders_performace
> I would be glad to get feedback on the actual speedup in other simulations.
> I can imagine possible slowdown in extreme cases, although it is unlikely to
> happen (if it happens, then tuning the collider's parameters should fix the
> problem).
> If you feel like experimenting, you can play with the three parameters of
> the new collider: verletDist, targetInterv, and minSweepDistFactor.
> Reports can be very usefull as they will help to decide what is best best
> default combination for these parameters.
>
> I hope we can release a stable version on this basis soon, when it is
> confirmed that the new collider is bug-free.
>
> Best regards.
>
> Bruno
>
> --
> _______________
> Bruno Chareyre
> Associate Professor
> ENSE³ - Grenoble INP
> 11, rue des Mathématiques
> BP 46
> 38402 St Martin d'Hères, France
> Tél : +33 4 56 52 86 21
> Fax : +33 4 76 82 70 43
> ________________
>
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