[Wien] symmetry in optimization

[Stefaan Cottenier]

> It seems that the symmetry changes during the mini_lapw process. Here
> I only want to optimize the internal parameters, why does the
> symmetry change? Doesn't WIEN keep the symmetry during minimization
> or did I do something wrong? (The command line I used is: min -j
> "run_lapw -i 50 -p -fc 1" with version WIEN2k_03)

In principle, symmetry is conserved. In practice, very small numerical 
deviations might occur in the optimized positions, such that strictly 
spoken the symmetry is broken. You can ignore this.

Stefaan