Dear Paolo Giannozzi<br><br>Many thanks for your help. I had a mistake and thought that it is a significant error of vc-relax.<br><br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
> I get the below lines in the first iterations but after the<br>
> iteration # 4 or 5 disappears and again in the next steps the<br>
> story repeats.<br>
><br>
> Davidson diagonalization with overlap<br>
> c_bands: 1 eigenvalues not converged<br>
> c_bands: 4 eigenvalues not converged<br>
><br>
> As proposed in the manual and forum I tried to ran the Job without<br>
> considering symmetry<br>
<br>
where did you read that?<br>
<br>
\paragraph{{\em Warning : N eigenvectors not converged}}<br>
This is a warning message that can be safely ignored if it is not<br>
present in the last steps of self-consistency. If it is still present<br>
in the last steps of self-consistency, and if the number of<br>
unconverged eigenvector is a significant part of the total, it may<br>
signal serious trouble in self-consistency (see next point) or<br>
something badly wrong in input data.<br>
<br>
> I do not know that I must be worry of encountering such lines or not?<br>
<br>
as explained above, you shouldn't.<br>
<br>
> Also, May you please say me the "c_band" is related to my Carbon<br>
> atoms or not?<br>
<br>
no: "c_bands" is the routine that issues the message<br>
<br>
P.<br>
---<br>
Paolo Giannozzi, Dept of Physics, University of Udine<br>
via delle Scienze 208, 33100 Udine, Italy<br>
Phone +39-0432-558216, fax +39-0432-558222<br>
<br></blockquote><div> Best Wishes<br> Masoud Nahali<br> SUT <br></div></div><br>