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[Chareyre <question690691@xxxxxxxxxxxxxxxxxxxxx>]

Question #690691 on Yade changed:
https://answers.launchpad.net/yade/+question/690691

    Status: Open => Answered

Chareyre proposed the following answer:
I suspect fixing one problem recently could have cause that new one. Thanks
for reporting, please provide the info you can. I'll be back.
Bruno

Le jeu. 14 mai 2020 00:55, Jan Stránský <
question690691@xxxxxxxxxxxxxxxxxxxxx> a écrit :

> Question #690691 on Yade changed:
> https://answers.launchpad.net/yade/+question/690691
>
>     Status: Open => Answered
>
> Jan Stránský proposed the following answer:
> Hello,
>
> > Here's the key part of the source:
> > Any suggestions?
>
> please provide more information:
> - a complete code reproducing your problem (trying to keep it minimal) [1]
> (The code provided is not really "key" - engines are mostly irrelevant,
> computations inside swing are not relevant either).
> - how you start yade (e.g. -j option)
>
> > Or anybody can point me a to working example of setPermF?
>
> a MWE [1]:
> ###
> O.bodies.append([sphere((0,0,z),.1) for z in range(100)])
> O.forces.setPermF(0,(1,0,0))
> O.run(10,True)
> print(O.bodies[0].state.pos)
> ###
>
> works nicely with "yade", gives zero motion with "yade -j 3".
> So it seems there is a bug in setPermF for parallel run, compare [2] and
> [3].
>
> @Bruno? [4]
>
> cheers
> Jan
>
> [1] https://www.yade-dem.org/wiki/Howtoask
> [2]
> https://gitlab.com/yade-dev/trunk/-/blob/master/core/ForceContainerSerial.cpp#L45
> [3]
> https://gitlab.com/yade-dev/trunk/-/blob/master/core/ForceContainerParallel.cpp#L104
> [4]
> https://gitlab.com/yade-dev/trunk/-/commit/da054fee5fe98ff2ebe46d45dfdf839d5b2bb9eb
>
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