<div style="caret-color: rgb(255, 255, 255); font-family: Helvetica; font-size: 12px;"><font color="#000000">Hi</font></div><div style="caret-color: rgb(255, 255, 255); font-family: Helvetica; font-size: 12px;"><font color="#000000"><br /></font></div><div style="caret-color: rgb(255, 255, 255); font-family: Helvetica; font-size: 12px;"><font color="#000000">The basis set for Mg that you are using contains an exponent of 30, for which the cutoff of 400 Ry is much too small.</font></div><div style="caret-color: rgb(255, 255, 255); font-family: Helvetica; font-size: 12px;"><font color="#000000">In this case it is probably better to switch to GAPW.</font></div><div style="caret-color: rgb(255, 255, 255); font-family: Helvetica; font-size: 12px;"><font color="#000000">Anyway I would suggest to use PP and BS in the UZH libraries, which are currently the best performing MOLOPT settings.</font></div><div style="caret-color: rgb(255, 255, 255); font-family: Helvetica; font-size: 12px;"><font color="#000000"><br /></font><div style="caret-color: rgb(0, 0, 0);"><font color="#000000">Regards</font></div><div style="caret-color: rgb(0, 0, 0);"><font color="#000000">Marcella</font></div></div><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" /><br /><br /><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Tuesday, April 30, 2024 at 4:05:03 PM UTC+2 xyfe...@gmail.com 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;"><br>Thanks for your response! This is my input file. The force calculated is about twice larger than that of vasp results(PAW-PBE)<div class="gmail_quote"><div dir="auto" class="gmail_attr">On Tuesday, April 30, 2024 at 8:08:09 PM UTC+8 Marcella Iannuzzi 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 ..<div>The provided information are very limited, but, if you are using GPW,</div><div> it is possible that the PW cutoff is too low for Mg.</div><div>Regards</div><div>Marcella</div><div><br></div><div><br><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Tuesday, April 30, 2024 at 11:32:20 AM UTC+2 <a rel="nofollow">xyfe...@gmail.com</a> 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">Dear all, I am trying to use cp2k for the molecular dynamics of Mg2+ solution systems, but the calculated forces of Mg are too large and not very good.I suspect that it's because the basis set I chose (DVZP-MOLOPT-SR-GTH) doesn't describe larger systems well.<div>So, Is there any recommended basis sets suitable for magnesium ion solution system that can balance accuracy and cost?</div></blockquote></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/b3850a83-dd69-43d5-bf0d-93241170a537n%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/b3850a83-dd69-43d5-bf0d-93241170a537n%40googlegroups.com</a>.<br />