Firedrake meeting 2024 11 27

Date and time 2024-11-27 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. CW (formerly JB): Move PyOP2 and TSFC to firedrake and move FInAT to FIAT
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. JB: Enable merge queues (minutes)
9. LC: Try to merge RNH' PR: Movable VOM
10. ANY: Add Python 3.13 to PyOP2, TSFC, FIAT, FInAT CI (and others?)
11. PB: Profile and speed up some tests (minutes, minutes)
12. RK: sort out Firedrake USA details and website before Christmas time
13. CW: tackle Loopy warnings

Agenda

Present: DH, DD, PB, CW, IM, FA, LC, JHC, KS

Apologies:

CW: Big PyOP2 merge (https://github.com/firedrakeproject/firedrake/pull/3817)

Everything is addressed. This should be ready to go.

Some people have tested firedrake-update.

Merged.

CW: Mac runners (https://github.com/firedrakeproject/firedrake/pull/3881)

CW: This is very close.

CW: Some tests fails; need to ask Tim to do things.

PB: Slow tests

After some profiling, it seems that the main bottlenecks are related to the loopy linearize warnings:

On top of this, compilation of zany elements is slow mainly due to gem.optimise.aggressive_unroll https://github.com/FInAT/FInAT/blob/d3a9b536233870d8853a6162c4112b07689fcdc1/finat/physically_mapped.py#L277

Simply removing aggressive_unroll brings compilation time for the Johnson-Mercier Riesz map from 32 seconds down to 5.5 seconds.

PB: M is sparse -> need aggressive_unroll.

TSFC: make linearise faster

FInAT: Only use a single Node for M, instead of many.

DD: Return AdjFloat in recompute FloatOperatorBlock and check the control OverloadType at rf.__call__

(https://github.com/dolfin-adjoint/pyadjoint/pull/181) + (https://github.com/firedrakeproject/firedrake/pull/3890)

Very close to be merged.

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.

PB: #3436.

Just need some documentation.

PB: #3868

DD: #180 Fix checkpointing for MixedCheckpointSchedules (Pyadjoint)

Date of next meeting

1600 UTC 2024-12-04