Hello,<div><br></div><div>for the 1st warning reduce the cutoff to something less than half of the shortest cell dimension.</div><div><br></div><div>for the 2nd: https://www.cp2k.org/faq:hfx_eps_warning</div><div><br></div><div>Best Regards,</div><div>Dobromir</div><div><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Monday, January 2, 2023 at 5:48:11 AM UTC+2 qqp...@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;">Dear
Colleagues,<br><div><span dir="ltr"><br></span></div><div><span dir="ltr">I ask you to kindly share your experience about the following question.<br></span></div><div><span dir="ltr">I want to use cp2k to optimize the structure of a Zn2SnO4 (331), so is it enough to use PBE+DZVP-MOLOPT-SR-GTH+DIAGONALIZATION+Bryden?should I add smearing? </span> Should<span dir="ltr"> I add the PBE0-ADMM method, but when I use this method, there will be an error shown as follow, what is the reason for this?</span><br><div><span dir="ltr">Thanks a lot for your help,</span></div><div><span dir="ltr"><br></span></div><div><span dir="ltr"><br></span></div><div><span dir="ltr">*** WARNING in hfx_types.F:1968 :: Periodic Hartree Fock calculation ***<br>*** requested with use of a truncated or shortrange potential. The cutoff ***<br>*** radius is larger than half the minimal cell dimension. This may lead ***<br>*** to unphysical total energies. Reduce the cutoff radius in order to ***<br>*** avoid possible problems. ***<br><br><br>*** WARNING in hfx_energy_potential.F:592 :: The Kohn Sham matrix is not ***<br>*** 100% occupied. This may result in incorrect Hartree-Fock results. Try ***<br>*** to decrease EPS_PGF_ORB and EPS_FILTER_MATRIX in the QS section. For ***<br>*** more information see FAQ: <a href="https://www.cp2k.org/faq:hfx_eps_warning" style="text-decoration-line:underline" target="_blank" rel="nofollow" data-saferedirecturl="https://www.google.com/url?hl=en&q=https://www.cp2k.org/faq:hfx_eps_warning&source=gmail&ust=1672745332159000&usg=AOvVaw2MS9o2_iJYJZGG7MPTRPj8">https://www.cp2k.org/faq:hfx_eps_warning</a> ***<br></span></div></div></blockquote></div>
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