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[jduriez <jerome.duriez@xxxxxxxxxxxxxxx>]

I launched ./yade-trunk -j1 ~/yadeTrunk/scripts/normalInelasticity-
test.py, is it ok ? (sorry, with https://www.yade-
dem.org/sphinx/introduction.html#starting-yade, I did not find exactly
what to type in this case of options with numerical values)

If yes it does not solve the problem. I still have random results. More precisely it happens (at least) during the first phase of the script, when spheres move relatively in normal direction.
Change l.73 of normalInelasticity-test.py, to have plot.plots={'step':('unTrue','torque',),'unPerso':('normFn',),'unTrue':('normFnBis',)}, to check it.

With many launchs I got in fact (at least) three different changes in
torque during compression (attached).

-- 
Random torque results in r2535
https://bugs.launchpad.net/bugs/672473
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Status in Yet Another Dynamic Engine: New

Bug description:
Launching scripts/normalInelasticity-test.py., with r2535, I get random results (two different ones) if I launch this script few times successivly (quitting Yade after the end of each launch)
It is about two spheres in contact, which move relatively to each other, and (at the end of the script), especially rotate relatively to each other.

The last figure displayed by the script, which represents the evolving torque contact, is random : I can get two different figures, which are attached.