On 26 August 2010 13:25, Bruno Chareyre <bruno.chare...@hmg.inpg.fr> wrote:
> I bet on contact law returning nan value (division by 0, or something like > that). > Then velocity is NaN when this force is integrated. > You win the bet, sorry. After a day of debugging, I realized I was returning a negative tangential stiff, and this was causing the problem with contact damping. Thxs for suggestions anyway. I see from the mail archive that Janek had some problems with Nan values (unrelated to my question at this point), have you fixed them? Cheers, Chiara > > Cheers. > > Bruno > > > On 25/08/10 20:12, chiara modenese wrote: > > Hi all, > > what are the reasons for which one should get the following message from a > simulation? > > 9088 FATAL yade.ThreadRunner > /home/chia/Documents/yade-r2394-psd2/core/ThreadRunner.cpp:31 run: Exception > occured: > Body #5653 has velocity==NaN! > > In my case it happens right after I launch a triaxial test (I am only doing > few small changes in my contact law, I do not think they are related to this > problem) but I would not know how to circumscribe the problem. Any > suggestions? > > Thanks, Chiara > > > _______________________________________________ > Mailing list: https://launchpad.net/~yade-dev > <https://launchpad.net/%7Eyade-dev> > > Post to : yade-dev@lists.launchpad.net > Unsubscribe : https://launchpad.net/~yade-dev > <https://launchpad.net/%7Eyade-dev> > More help : https://help.launchpad.net/ListHelp > > > > -- > _______________ > Bruno Chareyre > Associate Professor > ENSE³ - Grenoble INP > Lab. 3SR > BP 53 - 38041, Grenoble cedex 9 - France > Tél : +33 4 56 52 86 21 > Fax : +33 4 76 82 70 43 > ________________ > > > _______________________________________________ > Mailing list: > https://launchpad.net/~yade-dev<https://launchpad.net/%7Eyade-dev> > Post to : yade-dev@lists.launchpad.net > Unsubscribe : > https://launchpad.net/~yade-dev<https://launchpad.net/%7Eyade-dev> > More help : https://help.launchpad.net/ListHelp > >
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