Attendees: Lucas (minutes), Peter Diener, Roland Hass (chair), Beyhanm, Deborah Ferguson, Johnny Tsao, Maxwell Rizzo, Nikolai Wallin, Noora Ghadiri, Zach Etienne

# ET_2026_05 release

## Gallery runs

- Debporah's run: Something is wrong with the stampede build, her student ran and the trajectories were off. She's also having trouble with the derivatives

- Johnny is encountering a difference when running his (Poisson equation). He says if he uses the number of processes Steve used he gets different results, if he uses 1 he gets the same results. He sees a left to right shift. Roland says that if the thing gets shifted to the right its OK, its taking a couple of iterations longer to converge.

- Noora reports having some allocation issues but promises to have it done by next week.

## Test suite runners

- Deborah is debuging on stampede 3. No luck yet. Will report back.

- Cottonmouth fails on sunrise and cosma, but the info is outdated, thorns have had updates. The test runners will try again.

- Noora reports all tests passing on frontera, but have not updated the webpage yet.

- McLachlan fails on delta, queen bee and sunrise. Peter concludes it was a tolerance issue, he will update the tests and the test page.

- Checkpoint failing on delta, anvil and expense. Roland asks for log files for this specific failure and will look at them.

- TwoPuncturesX fails on delta. Cheng-Hsin is defending, so Lucas and Noora will coordinate to see who has more time and try to run there.

## Thorn Reviews

- Bhahaha: Will have a vote next weeks for final inclusion.

- CanudaX: vote in 2 weeks or after.

- Cottonmouth: Zach is reviewing the Einstein Engine repo, he will have a list of updated issues soon.

- Boost: Its in, some people have been using it already, no issues so far. Up for vote next week.

- TwoPuncturesX: Approved, up for vote next week,

# ET Workshop at UIUC

- Its happening! - Total participant numbers is about 100 people, with 50 in person and 50 online - The tutorial server boss (Steve) is away so for now you are on your own.

# Mailing list questions

- Jordan asks about termination functionality. Roland will respond to him on the mailing list.

# Tickets

2916: New issues for Cottonmouth Review. 2952: 2950: We can't do point 3 before doing point 1, because we don't have conditional storage yet. 2944: Roland suggests splitting up the issue list in more than one ticket. Because this thorn is very close to Multipole, many of the issues pointed out here should also be fixed on that thorn. 2949: C23 reserves the bool keyword, and the flesh requires some changes. 2948: Requires conditional storage.