Date and time 2021-08-04 15:00UTC (16:00BST)

Action Items

1. Pick Chair and Minuter.
2. ALL: (ongoing) triage the open issues and confirm if they are indeed still open (and perhaps provide labels)
3. (JB, DH, KS, JW): Firedrake training happening 23rd August, update
4. DH: Firedrake 2021 update

Minutes

Present: MG, DS, JB, RK, KS, DH, CW

Apologies:

JB: Firedrake training

• 60 were registered as of yesterday
• DH: by this week double-check Jupiter server is running. Action DH: will do Friday
• JB: Arrange close of registration and pre-tutorial drop-in session

Firedrake 2021

• website is up
• announcements to mailing list, Slack, fenics-slack, NA digest, SIAM CSE mailing list
• registration is not up yet (bureaucracy)
  • Action DH: Harass admin about setting this up
• abstract submission is open
  • All core developers expected to submit an abstract (should be obvious what)

JB: Follow up on all of last weeks items:

• RNH: Loopy breaking Interpolation Kernels
  • Action ??: Produce MFE (minimum failing example)
• CW: What is the data representation of a MixedDat?
  • Next week
• CW: Proposal: A new type system for PyOP2
  • Next week
• RNH - Workers dying when running tests
  • Action ??: Produce MFE
• RNH - FInAT dual evaluation feedback

RNH: Issue #2095 Loopy breaking Interpolation Kernels

Complex data types are getting into real mode PyOP2 Kernels (can't create a "Real" interpolator for example).

• issue removing complex node in expression compiler seems to insufficient (in form compiler it is at least called twice, see https://github.com/firedrakeproject/tsfc/blob/94aa4d548bd1cc5520a8490692e12f190287ea86/tsfc/ufl_utils.py#L119 I think)

DH: Master is failing

JB: Merge #2165

Merge PRs:

#2166 - Merged

#2158 - Tests are hanging, but we don't know which

AOB

DS: What's up with the loopy language warning?

DH: Ask Sophia when back

DS: Will attempt fixing in a PR

Date of next meeting

2021-08-11 15:00UTC (16:00BST)