yade-dev team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

> As already explained (search the archive), if you use cundall's damping,
> the rounding errors can propagate infinitely quickly.
>   
I agree that damping discontinuity can make the difference grow faster 
in general. But in special cases where you can proove damping has no 
effect on the result, it is a bit short.
It seems many multithread runs of the same simulation with damping=0.02 
gives higher variability than monothread runs with damping =0.02, 0.1, 
0.3. But again, I used initial clouds instead of dense packings to 
repeat the test, it might be the reason. I'll know more sooon.

Bruno