<div dir="ltr"><div>Dear Pamela,</div><div><br></div><div>Thanks for your advice. </div><div>I tried to use QE.6.1.0 to repeat my calculation, but it also gave "NaN" in the xspectra calculation. So I think my problem may not be due to the QE version.</div><div>In your case, your half-core-hole scf calculation failed in the new version of QE. In my cace, my half-core-hole PP calculation was completed, but my full-core-hole calculation failed. So I think this is a problem with the PP I generated.<br></div><div>Also attach my calculation results for reference:</div><div><a href="https://drive.google.com/drive/folders/1CpC2_vk424Dsc5e-ful2mW1p7ggJiJ53?usp=sharing">https://drive.google.com/drive/folders/1CpC2_vk424Dsc5e-ful2mW1p7ggJiJ53?usp=sharing</a><br></div><div><br></div><div>Feifei Tian</div><div><br></div><div><br></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 28, 2021 at 3:05 PM Pamela Svensson <<a href="mailto:pamela.svensson@physics.uu.se">pamela.svensson@physics.uu.se</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">
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<div>Dear Feifei Tian,</div>
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<div>I had a similar problem when running XSpectra with my own generated half-core-hole PP but in my case it gave NaN numbers already in the first SCF steps.</div>
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<div>I managed to get around it by using an older version of QE, for me it worked with the 6.1-version.</div>
<div>With that said, I can’t answer why this happens, since I don’t yet fully understand the software, but my guess is that at some point the updated QE has become incompatible with some of the keywords used in an XSpectra calculation. It is quite
an old program after all. </div>
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<div>Cheers,</div>
<div>Pamela</div>
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<div>Pamela Svensson, PhD student<br>
Uppsala University</div></div></div></div></div>
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