[Users] meeting minutes for 2025-06-19

[Roland Haas]

Present: Peter, Roland, Johnny, Keith, Lucas, Steve, Zach

Next ET release
===============

* Steve will be release chair
* Zach proposed BHaHAHAH
* missing gallery examples: BBH (Peter & Zach both), Poisson (Steve)

ET summer school
================

* workshop recordings are live on YouTube (also in
  https://youtube.com/@einsteintoolkit)
* Johnny will share playlist with ET channel
* suggestion to provide program for half-day off, viz tour would have
  been possible
* might want some more time for questions
* Lucas suggested adding back more basic lectures, maybe poll
  participants when registering what they would be interested in

Unanswered questions
====================

* Roland will try and follow up with:
  https://lists.einsteintoolkit.org/pipermail/users/2025-June/009659.html

Tickets
=======

* https://bitbucket.org/einsteintoolkit/tickets/issues/2855
  noisex-improve-noise-generation-in-carpetx Lucas mentioned that even
  when specifying the algorithm in STL different implementations may
  still produce different random number sequences. Peter will look into
  modern Fortran implementations if the have better specified behaviour.

* Steve brought up code developed by Stellar group (HPX) at LSU that
  does compensated addition to improve results of sum reductions.

* https://bitbucket.org/einsteintoolkit/tickets/issues/2862
  update-spacetimex-z4c-robust-stability needs review, for robust
  stability test for Z4c. Current candidates for inclusion are
  LeanBSSNMoLX and Cottonmouth.

Yours,
Roland


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