<p>Dear CP2K developers,</p>
<p>I am using CP2K with PBE-D3(BJ) to calculate single-point energies and try to make an output of AO overlap, density matrices, Mulliken and Löwdin populations for CO and CO adsorbed on a Cu slab.</p>
<p>I am facing two problems:</p>
<ol>
<li>
<p><strong>MO warning for CO calculations:</strong><br />
When using the def2-TZVP basis set with smearing, CP2K reports:</p>
<div><div><div><div></div></div></div><div dir="ltr">*** WARNING in qs_environment.F:1486 :: More added MOs requested than ***
*** available. The full set of unoccupied MOs will be used. Use ***
*** 'ADDED_MOS -1' to always use all available MOs and to get rid of this ***
*** warning.
</div></div>
<p>This occurs even though I explicitly requested 30 MOs in the input.</p>
</li>
<li>
<p><strong>Cholesky decomposition failure for Cu slab:</strong><br />
When using def2-TZVP for Cu (with or without smearing and CO), the calculation aborts with:</p>
<div><div><div><div></div></div></div><div dir="ltr">[ABORT] Cholesky decompose failed: matrix is not positive definite or ill-conditioned
fm/cp_cfm_basic_linalg.F:877
</div></div>
</li>
</ol>
<p>I would like to ask for guidance on how to avoid these issues. Should I adjust the number of MOs, EPS_DEFAULT, smearing, or other SCF parameters for metal systems with large basis sets? I have no idea about this.</p>
<p>I have attached the input XYZ files and example output files for reference.</p>
<p>Thank you very much for your time and help.</p>
<p></p>
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