<div dir="ltr"><div>Dear Hongyang,</div><div><br></div><div>One reason of convergence difficulties may be the geometry that is far from a relaxed one. In such cases I try to set a very loose SCF criterion (in the initial stage of the relaxation). After some number of geometry steps, I tighten the SCF criterion. </div><div><br></div><div>Best regards</div><div>Martin.<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">pi 3. 12. 2021 o 1:25 <a href="mailto:ma455...@gmail.com">ma455...@gmail.com</a> <<a href="mailto:ma455173220@gmail.com">ma455173220@gmail.com</a>> napísal(a):<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi all,<div><br></div><div>I'm new in using CP2K.</div><div>I'm currently calculating pure silicon with one vacancy, but the SCF calcualtion is very hard to converge. Could you please provide me some suggestions on improving this issue?</div><div><br></div><div>Best,</div><div>Hongyang</div>
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