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Chargemol fixes for VASP POTCAR 64#4545

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shyuep merged 4 commits intomaterialsproject:masterfrom
esoteric-ephemera:chgmol
Feb 18, 2026
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Chargemol fixes for VASP POTCAR 64#4545
shyuep merged 4 commits intomaterialsproject:masterfrom
esoteric-ephemera:chgmol

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@esoteric-ephemera
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DDEC6 / chargemol is incompatible with PBE / LDA 64 POTCARs because of the SHA and COPYR tags. Adds some workarounds to:

  1. Rewrite the POTCAR without these tags to a temp file if needed
  2. Not store the full POTCAR in memory

@rul048 @kenko911 can you take a look at if this looks OK to you?

@kenko911
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Hi @esoteric-ephemera, it looks good to me. Thanks!

if not any(k in line for k in CHGMOL_BAD_POTCAR_KEYS)
)
)
f.seek(0)
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Not sure what this seek is intended to do?

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The seek is needed upon reopening the temp file or the cursor might stay at the tail of the file rather than the head

@shyuep shyuep merged commit a8d7b3e into materialsproject:master Feb 18, 2026
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3 participants