<div dir="ltr"><div>It works decently well if you add a smearing (and a few more bands, but this is done automatically):<br></div><div> occupations = 'smearing'</div> smearing = 'gaussian'<br><div> degauss = 0.01</div><div><br></div><div>Paolo<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 23, 2021 at 8:12 AM Haoran Wang <<a href="mailto:whr1130@gmail.com">whr1130@gmail.com</a>> wrote:<br></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">Hi QE users,<div><br></div><div>I have been trying to run the scf of a molecule below for many days. It never converged. The configuration is from Gaussian optimization, so it should be sensible. I did try other configurations obtained from MD simulations and still no convergence. I tried different pseudo-potentials (PBE-PAW, PBE-US, LDA-US) and also tried tuning the parameters (mixing_beta, mixing_mode, <span style="color:rgb(0,0,0);font-family:monospace;font-size:medium">ecutrho...</span>), still no convergence. Could somebody help me and see why this happens?</div><div><br></div><div>Thanks,</div><div>Haoran Wang</div><div>Utah State University</div><div><br></div><div>**************************************************************************************</div></div>
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