Quick update. I have been using Davidson, which has helped a bit. Also consider &XC_GRID with XC_SMOOTH_RHO and XC_DERIV.<div><br></div><div>I am trying to figure out if &VDW_POTENTIAL would help, too.<br><div><br></div></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Friday, May 6, 2022 at 10:29:31 AM UTC+2 Sam Broderick wrote:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Hi WT S<div><br></div><div>While 13 atoms doesn't sound like a lot, many transition elements have a lot of valence electrons and higher order obrital shapes. As a result, your matrices are very large due to the number of basis functions needed.</div><div><br></div><div>To be quite honest, I am having trouble with my calculations, too. Your &MGRID CUTOFF seems low...</div><div><br></div><div>Kind Regards</div><div>Sam<br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Friday, October 5, 2018 at 5:34:52 PM UTC+2 WT S wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear all CP2K developers and users,<div><br></div><div>First of all, I am a totally new user of CP2K.</div><div><br></div><div>I am trying to use the CP2K to do some geometry and energy calculations on small cobalt nanoparticles, the first one I started is the smallest icosahedron with 13 atoms. However, I just cannot get my calculation converged, the best situation I got now is the energy change stuck around 1E-01. Please see my input files, I am not sure where is the problem.</div><div><br></div><div>Another problem is that my calculation uses too many memory, it usually requires more than 130g memory to run, not sure whether it is a problem or not.</div><div><br></div><div>Best</div><div>WT S</div></div></blockquote></div></blockquote></div>
<p></p>
-- <br />
You received this message because you are subscribed to the Google Groups "cp2k" group.<br />
To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp2k+unsubscribe@googlegroups.com">cp2k+unsubscribe@googlegroups.com</a>.<br />
To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/10108303-0201-4a62-b43c-93d080e3397bn%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/10108303-0201-4a62-b43c-93d080e3397bn%40googlegroups.com</a>.<br />