Firedrake meeting 2026 04 14

Date and time 2026-04-14 1600 UTC+1

Action Items

1. Pick Chair and Minuter (PB to pick)
2. ALL: (ongoing) triage the open issues and confirm if they are indeed still open (and perhaps provide labels)
3. ALL: do things with SV's branches
4. DH: Email to Andreas to have 2 (+ others!!!) loopy PRs merged TODO: FIND OUT WHICH PRS THESE ARE
5. DH: Talk to GregVernon about PR#2116.
6. CW: More testing configurations (minutes)
7. ALL: Change the MultiFunction in ufl2unicode with a DAGTraverser

Minutes

Present: CW AC DH PB JHC

Apologies: IM

Misc

• DH has trimmed github team members for active contributors.

Firedrake/PETSc meeting abstracts

• Deadline approaching!
• Discussion on topics.

Multifunction misbehaviour

• Discussion of these PRs: https://github.com/firedrakeproject/firedrake/pull/5022, https://github.com/firedrakeproject/Irksome/pull/208
• Someone needs to go through and replace all MultiFunction instances with DAGTraverser.
• The priority should be the Multifunction for ufl2unicode because that is now the only one that Firedrake instantiates at import.

Merge PRs

• CW: https://github.com/firedrakeproject/firedrake/pull/5028
• CW: Periodic mesh renumbering approved but postponed to post-release.
• PB: Discussion of ngsPETSc boundary region handling.

Date of next meeting

Meeting times going forward: Tuesday 4pm unless David has a monthly meeting, in which case Tuesday 3pm. Next 3pm Meeting 28 April.

1600 UTC+0100 2026-04-21