Dear Alberto,

Probably, you should specify: 
tr2_ph=1.0d-12
in your ph.in file.
I suggest that you should use more accurate SCF
convergence criteria, too.

Bests,
Eyvaz.  

--- Alberto Milani <alberto.milani at chem.polimi.it>
wrote:

> Dear all,
> how one can change the default accuracy in the
> computation of the dynamical 
> matrix ? I would like to improve the quality of the
> phonon bands I am 
> computing.
> Thank you,
> A.M.
> _______________________________________________
> Pw_forum mailing list
> Pw_forum at pwscf.org
> http://www.democritos.it/mailman/listinfo/pw_forum
> 



        
                
__________________________________ 
Yahoo! Mail - PC Magazine Editors' Choice 2005 
http://mail.yahoo.com

Reply via email to