[Users] meeting minutes for 2025-07-03

[Roland Haas]

Present: Leo, Roland, Peter, Beyhan, Keith, Wei Sun, Zach

gallery examples
================

* still lacking updates for BBH gallery example for 2025_05 and 2024_11

gcc15 failures
==============

* Zach suggested to compile ET with newest flavor of compilers regularly
* Roland mentions that we could have a weekly build using the new
  compiler using github, Ubuntu 25.04 has gcc15, Zach suggests there
  may even be a gcc-latest or so image

Benchmarking GRHayLHD simulations
=================================

* Wei, Zach and Leo discussed results of benchmarking a GRHayLHD
  simulation for optimal speed varying ranks and threads
* tests were done on NERSC Perlmutter (CPU only)
* suggest to try both with and without IO enabled
* suggest to check mpirun options to have correct affinity to cores /
  numa-nodes etc.

Yours,
Roland

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