Firedrake meeting 2023 11 29

Date and time 2023-11-29 1600 GMT (1600 UTC)

Action Items

1. Pick Chair and Minuter (RNH to pick minuter)
2. ALL: (ongoing) triage the open issues and confirm if they are indeed still open (and perhaps provide labels)
3. JB: Move pyop3 and FInAT to firedrakeproject
4. ALL: do things with SV's branches
5. DH: Email to Andreas to have 2 (+ others!!!) loopy PRs merged TODO: FIND OUT WHICH PRS THESE ARE
6. DH: Get Firedrake a docker open source account (link here)
7. DH: Talk to GregVernon about PR#2116.
8. DH: Revisit PR#2484.
9. DH: Order more Firedrake stickers
10. ALL/ANY: Drop libsupermesh (minutes)? JB: Waiting for https://github.com/Toblerity/rtree/pull/292
11. DD: Investigate adjoint test fails in teardown (minutes)

Minutes

Present: CW, DH, DD (minuter), KS, NB, PB, RK, IM, RNH, FA

Apologies: JB

PB: MixedFunctionSpace([primal, dual])

Currently V * V.dual() == V * V is wrong, and is_primal(V * V) == True goes against the original design. We need a better wrapper class for MixedFunctionSpace (as opposed to WithGeometry) or change what a MixedFunctionSpace is in ufl. The PR where we introduce V.reconstruct() should not address this.

The PR reconstruct FunctionSpace is involved with this issue.

DD: about the petsc message errors in firedrake_adjoint tests.

Actually, the test message error appears for every single firedrake tests. For an unknowing reason (at least for me) the flag python3 -m pytest --cov hides (or fixes?) these message errors in firedrake tests. The original problem is in petsc4py.init(sys.args). See the PR #3260

DH suggestion: Try to give the arguments from petsc.

DD: Build a install FAQ at firedrake wiki.

DH suggestion: Keep the text at the wiki and Pin the install FAQ in the discussions.

Merge PRs (ideally already reviewed)

• PB: ufl #246

This PR stops many of ufl warnings. PR approved.

• PB: tsfc #304

PR approved.

• PB: Expunge ufl_domain #3259

PR approved.

• PB: HypreAMS easy fix

PR approved.

• PB: reconstruct FunctionSpace

PR approved.

• KS: #3174

This PR requires changes. RNH will review this.

• KS: #3240

PR approved. Related to periodic mesh in firedrake.

• NB: #3274 (very easy one)

PR Approved. Fix bug cofunction equality.

Date of next meeting

1600 GMT (1600 UTC) 2023-12-06