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[Chareyre <question675879@xxxxxxxxxxxxxxxxxxxxx>]

Question #675879 on Yade changed:
https://answers.launchpad.net/yade/+question/675879

Chareyre proposed the following answer:
I don't think «upgrade linux» is a solution to code not doing what it
should, in general. My two cents. :)
Just to save your day.
Bruno

Le mar. 6 nov. 2018 17:52, Jan Stránský <
question675879@xxxxxxxxxxxxxxxxxxxxx> a écrit :

> Question #675879 on Yade changed:
> https://answers.launchpad.net/yade/+question/675879
>
> Jan Stránský proposed the following answer:
> My comment was to Robert's MWE illustrating problem with no interaction
> at all
>
> In your case it depends on where the problem is.
> 1) there is no interaction at the 1st step for exactly touching particles.
> This is ok, see my comment above
> 2) there is no interaction at all during the simulation. This definitely
> would be a problem.
>
> I tested your code and could not reproduce your problem on Ubuntu 18.04
> (similar to Robert's example), the interaction is real for both
> eps_pos=1e-5 and eps_pos=0.0
> interesting :-)
>
> Installing 18.04 might help but probably is not necessary, the true
> reason is somewhere else (CGAL version maybe, on 18.04 "apt show
> libcgal-dev" shows version 4.11-2build1).
>
> cheers
> Jan
>
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