Minutes of the coordination meeting of Oct. 9th 2025 (#1763)

* Minutes of the coordination meeting of Oct. 9th 2025

* Fixed 2 typos overlooked

* Small formatting fix

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Co-authored-by: Graeme Andrew Stewart <graeme.andrew.stewart@desy.de>

Author: eduardo-rodrigues

organization/_posts/2025/2025-10-09-coordination.md

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+---
+title: "HSF Coordination Meeting #295, 9 October 2025"
+layout: plain_toc
+---
+
+## Attending
+
+Present/Contributing: Eduardo Rodrigues, Tommaso Lari, Ianna Osborne, Graeme Stewart, Claire Antel, Inês Ochoa, Maarten van Veghel, Liz Sexon-Kennedy, Luke Kreczko
+
+Apologies/Contributing: Michel Villanueva
+
+## News, general matters, announcements
+
+### HSF Seminar Series and Compute Accelerator Forum
+
+Planned HSF seminars:
+- 29th Oct: _European Strategy Report: Inputs, Impressions, Venice Open Symposium Highlights_
+- Dec 3rd: _HS3_, TBC
+
+Others in the works:
+- Seminar on OpenData organised by Trig & Reco SW AA
+- 2nd in series on AI-assisted SW tools organised by software tools & packaging
+- Seminar from creator of mp-units (supports units and constants in C++, see AOB) - still to be arranged
+
+(Thanks to the activity groups for coming to us with seminar ideas and speakers!)
+
+HSF seminar conveners are reachable at <mailto:hsf-seminar-conveners@googlegroups.com>.
+
+Compute & Accelerator forums:
+- We had a meeting on [Error estimation for floating point operations via automatic differentiation](https://indico.cern.ch/event/1472686/) just yesterday
+- 12 Nov: [A Formal but Pragmatic Foundation for General-Purpose Operating Systems](https://indico.cern.ch/event/1472688/)
+
+Please send your suggestions for next seminars.
+
+### Steering Group
+
+The first meeting post Summer took place last week. See [the minutes](https://hepsoftwarefoundation.org/organization/2025/10/02/steering.html).
+
+We discussed in particular:
+- The HSF budget we collect from our participation in the GSoC programme. This can be used for HSF related activities.
+- Idea to create a community repository for bibliographic citations. In the works. It will soon be advertised.
+- Status of the affiliation programme. See item below for details.
+
+### HSF Affiliated Projects and Software
+
+Several projects have been contacted after the Summer and evaluations are either in discussion or will happen soon.
+
+Check out [here](https://hepsoftwarefoundation.org/projects/projects.html) for the list of affiliated projects.
+
+## Activities Updates
+
+### Software Training
+
+Oct. 6: a Hackathon on the SSH shell course material tool place.
+
+#### Ideas for upcoming trainings: 
+- Organize the basic training twice a year: once online and once in-person, charging a small fee. The one in-person could be scheduled alongside other in-person events (for instance, summer schools)
+    - Move to intermediate and advanced trainings, and keeping the basic material available in the Training Center for self-study
+
+#### Future Events:
+- [13th HEP C++ Course and hands-on training - Advanced C++](https://indico.cern.ch/event/1549051/overview), 27-31 Oct, registration open, places for in person attendance available
+- Blueprint Meeting on AI - TBD 
+    - Survey to collect comments, and then organize a dedicated session with different collaborations to define a roadmap
+
+### Event generators
+
+- A 2-day workshop from the LHC Monte Carlo WG is taking place as we speak, Oct. 8-9: <https://indico.cern.ch/event/1553687/timetable/>.
+    - The HSF was invited to present on "HSF: Vision and Role in MC Toolchain Sustainability" at the session "Sustainability of the MC toolchain". Sapta presented for us.
+
+### Detector Simulation
+
+The next G4 Technical forum will be held on Oct. 23.
+
+### Reconstruction and Software Triggers
+- Ongoing work to organize an HSF seminar on open data sets for AI/ML training purposes. We have one on LHC Open data and one on foundation models for NPP dataset. No confirmation yet from one on foundation models (from CMS colleagues); maybe alternatively one related to ML-based tracking.
+
+### PyHEP
+
+- [PyHEP 2025 Users Workshop](https://indico.cern.ch/event/1566263/): hybrid event at CERN on Oct. 27 - 30. Call for abstracts is open up to Oct. 13 23:59.
+    - Over 150 people registered
+    - 4 half days
+    - Over 20 abstracts: ML, AD, analysis tools, etc.
+    - Wednesday at 16:30 - a tutorial by Ashwin Srinath from Nvidia "Pythonic GPU Parallelism for HEP with cuda-cccl"
+    - Possibly an awkward package hackathon on Thursday (morning session)
+
+### JuliaHEP
+
+- We will start soon organising the JuliaHEP 2026 Workshop! It will probably be in Germany, so that it takes advantage of JuliaCon 2026 in Mainz.
+
+
+## AOB
+
+### Physical Constants / HEPdata Library
+
+Reminder: we are proposing a C++ header-only library that defines physical constants and some salient HEPdata in a lightweight, easy-to-use manner. Also taking into account versioning.
+
+John Chapman and Graeme Stewart picked this up again last week. We have asked for *mp-units* to be added to the LCG builds. Then we would like to add a simple header with common HEP constants and gradually migrate towards an integrated solution with mp-units.
+
+Finally, we would like to automate the generation of constant files directly from PDG and CODATA (this bit can be language neutral).
+
+*Additional help/contributions welcome!*
+
+### Next Meeting
+
+The next coordination meeting will be October 23rd, <https://indico.cern.ch/event/1477089/>.
+
+### Chair This Meeting 👇
+
+Please [sign up](https://docs.google.com/spreadsheets/d/1Z1Z4payCpieOLiVFcC6y9j-KCj71u6xX232LHUgIHfI/edit) for chairing a future coordination meeting. (There is even a [HOWTO guide](https://hepsoftwarefoundation.org/organization/running-meetings.html)).