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Paul's July 2026 updates - #104

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Vaibhav-Chemistry merged 6 commits into
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paul_july_2026_updates
Sep 30, 2026
Merged

Vaibhav-Chemistry merged 6 commits into
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paul_july_2026_updates

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Summary

Branched from main, carries Paul's recent updates plus cleaned-up student contributions.

  • Reworks integrals code paths: becke, cpu_util, cuda_util, gauss, integrals, integrals_aux
  • Reworks libcintw: cintprep, cintwrapper
  • libio overhaul: adds molden.cpp (new), rewrites read.cpp/write.cpp
  • Bumps the vendored include/cint.h / cintwrapper.h from libcint 4.4.0 to 6.1.3 to match the libcint version actually linked on Athena and other recent environments (see commit 17ed9f8: "Note that cint.h is from a more recent libcint library.")

Notes

  • Fast-forward from main, no divergence.
  • CI has not yet run on this branch (push-only, not PR-triggered). This PR is the first CI signal.
  • The libcint header bump touches the same area as open PRs Reorder cintw includes so linked libcint cint.h wins (transitional) #94 (cintw include ordering) and Supply CUDA math libs via CUDAToolkit imported targets #100 (CUDA math libs via CUDAToolkit) — worth checking for overlap before merging those.
  • Anyone linking against an older libcint than what's now vendored here may see breakage; this is a known tradeoff, not an oversight.
  • ZEST's paul_july_2026_updates branch depends on this branch merging first (ZEST's pixi dependency tracks SlaterGPU's main).

🤖 Generated with Claude Code

paulzim46 and others added 6 commits July 21, 2026 10:39
Note that cint.h is from a more recent libcint library.
…e_Exyz

Resolves the conflict in src/integrals/integrals.cpp between this branch
(a = 25.) and main's 2c8b8b3 "Minor fix of an EField parameter" (a = 500.)
in reduce_Exyz and reduce_Exyz_2. Per Paul, go with Srijita's value.

Also brings in main's pixi-build-cmake <=0.3.11 / pixi <0.71 caps (#105).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@Vaibhav-Chemistry
Vaibhav-Chemistry merged commit c5e9db3 into main Sep 30, 2026
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@Vaibhav-Chemistry
Vaibhav-Chemistry deleted the paul_july_2026_updates branch September 30, 2026 18:20
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3 participants