<div dir="ltr"><div dir="ltr">On Tue, May 28, 2019 at 5:55 PM mehrdad zamzamian <<a href="mailto:mehrdad.zamzamian@gmail.com">mehrdad.zamzamian@gmail.com</a>> wrote:<br></div><div class="gmail_quote"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>when i want to relax my cell using vc-relax, the convergence is achieved, but I face a strange case. Total energy in the final stage increases as compared to the previous one [..]the final energy is
-247.73582068 Ry, whereas the total energy at on stage before last scf (
-247.74212689 Ry ) is minimal, and there is a rise in the last stage (see figure). What can be the cause? What amount of total energy should be selected as energy? Given the uprising, how has convergence been achieved?</div></div></blockquote><div><br></div><div> there is nothing strange: as explained in the output,</div><div><br></div><div> A final scf calculation at the relaxed structure.<br> The G-vectors are recalculated for the final unit cell<br> Results may differ from those at the preceding step.</div><div><br></div><div>Paolo<br></div><div>-- <br></div></div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,<br>Univ. Udine, via delle Scienze 208, 33100 Udine, Italy<br>Phone +39-0432-558216, fax +39-0432-558222<br><br></div></div></div></div></div></div>