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>
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