CCPP Framework Meeting Minutes 2026 07 16

Agenda

• GitHub issues/PRs
• New items
• Updates
• Other business
• notes

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Attendees: Michael Kavulich, Dom Heinzeller, Cheryl Craig, RhaeSung Kim, Jordan Powers, Courtney Peverley

GitHub issues, PRs, discussions

PRs

• Replace ccpp-prebuild and ccpp-capgen v0 with ccpp-capgen v1 #762 🎉

• Cleanup/manual review of feature/cagen-v1 part 1 + 2 minor improvements #764

• DOCUMENTATION: Updates for capgen-v1

Issues

• ccpp-capgen v1: a unified successor to ccpp-prebuild and ccpp-capgen v0
• Update Wiki #763

Drafts/On Hold

none

Capgen project board

• Time to retire?

New items for discussion

• Dom's presentation from CCPP developers meeting: https://docs.google.com/presentation/d/1eY-cYRzqhr1plxv3fCIUebu4Cuwxy17W/edit?slide=id.p1#slide=id.p1

Updates from last time

Previous notes

Other business

Meeting notes

capgen-v1 updates

• We’ll merge the cleanup PR (#764) soon because no one is reviewing the code right now anyway
  • Also includes some fixes for Dustin
  • Courtney & Mike to do light review
  • UFS, NEPTUNE will keep current hash though (since testing has already been done)
• Dustin’s documentation PR
  • Mike & Dom currently reviewing it
  • Courtney to work on the constituents piece today
• Dom updated ccpp-capgen v1 issue with current status
• Kind conversion
  • If there’s a mismatch between the kinds (e.g. single precision in scheme and double precision in host), the framework will copy the variable into the new kind; then convert back after the scheme
  • Compiler flags will catch out-of-bounds issues
  • Note: In the future, we’ll probably want to optimize the conversions back and forth between schemes that have the same precision
• Question yesterday about reworking the framework to generate C++

Mike to remove references to the stale project board from the meeting agenda

We'll meet again in 2 weeks