Comment 25 for bug 394687

http://www.thinkingparallel.com/2006/08/21/scoped-locking-vs-critical-in-openmp-a-personal-shootout/
This was the reason?

______________________________

Anton Gladkyy

2009/7/15 Václav Šmilauer <email address hidden>

> Seems clear now. Please reopen if you still have issues with different
> results without damping and with OMP_NUM_THREADS==1. With damping and
> with multi-threaded operation, results are allowed to differ.
>
> ** Changed in: yade
> Status: Confirmed => Fix Released
>
> --
> different results for same initial simulation (uninitialized values?)
> https://bugs.launchpad.net/bugs/394687
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> of the bug.
>
> Status in Yet Another Dynamic Engine: Fix Released
>
> Bug description:
> First reported by Anton on the ML. The attached script produces different
> results for same initial simulation. By running it, it will produce 3 saved
> final simulations and 3 gnuplot plots (suffixed -00, -01, -02). They are
> different. It should be found out why.
>