Date and time 2025-01-08 1600 UTC

Action Items

1. Pick Chair and Minuter (CW 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: Get Firedrake a docker open source account (link here)
6. DH: Talk to GregVernon about PR#2116.
7. JB: Enable merge queues (minutes)
8. LC: Try to merge RNH' PR: Movable VOM
9. PB: Profile and speed up some tests (minutes, minutes)
10. RK: sort out Firedrake USA details and website before Christmas time
11. CW: fix PyOP2+TSFC failing tests DONE
12. CW: Fix artefactsv3 issue
13. CW: More testing configurations (minutes)

Minutes

Present: CW (minuter), JHC, DD, KS, DH, IM, RK, PB, LC

Apologies:

PB: Speed up tests

• PB: Has an open PR to speed up split.

KS: UFL MixedMesh abstraction

Mesh class for mixed function spaces.

MixedMesh

• DH, KS, CW: Discussion concluding that the abstraction of sticking the mixed-ness inside the mesh (like we do with element) is OK. At the very least adopting MixedFunctionSpace would be extremely invasive in Firedrake.
  • The two approaches are effectively "zipping in opposite directions". With the Firedrake approach the structure of MixedMesh must match that of MixedElement whereas FEniCS do the zipping eagerly to build function spaces that are then combined.
• Following discussion on the PR should use MeshSequence (or similar) instead of MixedMesh to avoid confusion.

Merge PRs

Note that PRs put in this section should either be trivial or already have been reviewed. Discussion-worthy PRs should be separate agenda items.

1. UZ References (already merged)
2. JHC pyadjoint typo when checking hessian (merged)
3. JHC Only evaluate relevant TLM values - pyadjoint PR (merged) & firedrake PR (merged)
4. Reviewed a number of other PRs.

Date of next meeting

1600 UTC 2025-01-15