<div dir="ltr">Good afternoon,<br><p>I’ll take this opportunity to ask for further details regarding a PDOS calculation for a system consisting of a CuAlO₂ slab with an organic dye anchored on its surface.</p>
<p>When I run the calculation with a MEDIUM level of printing (input attached), the job stops before the SCF cycle begins. This makes me suspect there might be a memory issue.</p>
<p>I would like to ask how I could resolve this problem.</p>
<p>Thank you again for your valuable help.</p><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">Il giorno lun 20 apr 2026 alle ore 21:38 Marcella Iannuzzi <<a href="mailto:marci.akira@gmail.com">marci.akira@gmail.com</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><br></div>Hi Lorenzo<div><br></div><div>Try with a smaller number of <span style="color:rgb(0,0,0);font-family:Menlo;font-size:11px"> </span><span style="color:rgb(0,0,0);font-family:Menlo;font-size:11px">NLUMO in PDOS, like 50</span></div><div><span style="color:rgb(0,0,0);font-family:Menlo;font-size:11px">Regards</span></div><div><span style="color:rgb(0,0,0);font-family:Menlo;font-size:11px">Marcella</span></div><div><font color="#000000" face="Menlo"><span style="font-size:11px"><br></span></font><br></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Monday, April 20, 2026 at 6:54:20 PM UTC+2 <a href="mailto:lagasco...@gmail.com" target="_blank">lagasco...@gmail.com</a> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><p>Good evening,<br>
I am a new user of CP2K. I would like to calculate the atomic PDOS for a coumarin 343 molecule, starting from a RESTART-wfn file of a previous calculation at the PBE level of theory. I have tried various diagonalization methods (CG, DIIS) with different preconditioners (FULL_KINETIC and FULL_SINGLE_INVERSE), but in all cases I obtain an error like this:<br>
“Cholesky decompose failed: the matrix is not positive definite or ill-conditioned.” Here attached the input and output file of my calculation.</p>
<p>How can I solve this problem?<br><br>Thanks in advance for the help<br><br>Best regards<br><br>Lorenzo Lagasco</p><br></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" target="_blank">cp2k+unsubscribe@googlegroups.com</a>.<br>
To view this discussion visit <a href="https://groups.google.com/d/msgid/cp2k/a7483ff0-4d11-4390-a37b-21d20e3a13ebn%40googlegroups.com?utm_medium=email&utm_source=footer" target="_blank">https://groups.google.com/d/msgid/cp2k/a7483ff0-4d11-4390-a37b-21d20e3a13ebn%40googlegroups.com</a>.<br>
</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 visit <a href="https://groups.google.com/d/msgid/cp2k/CAKRVyRtUhGfnvmBHAVtv65p2Kgn%3D78czUQ3KW9x3UWeube4r5Q%40mail.gmail.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/CAKRVyRtUhGfnvmBHAVtv65p2Kgn%3D78czUQ3KW9x3UWeube4r5Q%40mail.gmail.com</a>.<br />