Firedrake meeting 2023 03 29

Date and time 2023-03-29 16:00 BST (1500 UTC)

Action Items

1. Pick Chair and Minuter (KS to pick minuter)
2. ALL: (ongoing) triage the open issues and confirm if they are indeed still open (and perhaps provide labels)
3. ALL: Review the Firedrake manual
4. JB: Move PyOP2 and FInAT to firedrakeproject
5. ALL: do things with SV's branches
6. KS: Fix checkpointing error with pickling elements
7. CW: Attempt to fix gc + CheckpointFile [JB: DONE?]

Agenda

Present: JB, DD, CW, KS, DH, RNH, PK, RK, FA, IM, UZ, NB

Apologies:

JB: Please review the manual

Link

• All: treat this as a publication and read it!
• DH: Everyone who has their name on this needs to be told

JB: Merge or rebase forks

What goes here. Thanks to Connor for these wiki contributions!

• Always merge. Everything will break if not.

DH: Should PyOP2 be in the Firedrake repo? And FInAT in the FIAT repo?

• Would make dealing with merges easier
• Also FInAT/FIAT combination would help with element definitions being pulled out of UFL
• FInAT/FIAT needs careful work due to FInAT depending on GEM which is in TSFC

JB: We should add some minor namespacing to plotting to avoid hard matplotlib dependency

• Yes.
• Might also speed up import

UZ: NetGen firedrake interface is now very delayed for reasons beyond our control

• Thanks NetGen!

Merge PRs

UZ: https://github.com/firedrakeproject/firedrake/pull/2703

• DH has concerns that introducing a weight property to DirichletBC might not be the correct way to do this.
• We should make the weight be an option for assemble and, for example, make it an argument to ExplicitMatrixAssembler._apply_bc. See PR review.

RNH: VOM voting algorithm

• Merged

JB: 2825 2732 2842 692

• 2732 merged
• 2842 (issue and PR templates) auto-merged
• pyop2/692 merged

NB: PyTorch coupling

• See review comments

PB: FIAT #36

• Already merged

Date of next meeting

1600 BST (1500 UTC) 2023-04-05