• Attending
• News, general matters, announcements
  • European Strategy Update (EPPSU) final stages
  • HSF/WLCG Workshop
  • HSF Seminar Series and Compute Accelerator Forum
  • Steering Group
  • HSF Affiliated Projects and Software
  • JENA Symposium
• Activities Updates
  • General Standing Reminders
    • Website banners
    • Meetings
    • Videos
  • Data Analysis
  • Reconstruction and Trigger
  • Software Training
  • Software Tools and Packaging
  • Detector Simulation
  • Physics Generators
  • Reconstruction and Software Triggers
  • PyHEP
  • JuliaHEP
  • GSoC program 2025
• AOB
  • Next Meeting
  • Chair This Meeting 👇

Attending

Present/Contributing: Ruslan Mashinistov, Liz Sexton-Kennedy, Claire Antel, Ianna Osborne, Michel Villanueva, Inês Ochoa, Maarten van Veghel, Juan Miguel Carceller, Sapta Bhattacharya

Apologies/Contributing: Eduardo Rodrigues, Graeme A. Stewart, Paul Laycock, Caterina Doglioni, Michel Jouvin, Christian Wessel, Alexander Moreno Briceño

News, general matters, announcements

European Strategy Update (EPPSU) final stages

Michel and Graeme unavailable, but here is the status:

The paper, The Critical Importance of Software for HEP, was finalised on time 👏.

• Submitted to the EPPSU process: https://indico.cern.ch/event/1439855/contributions/6461466/
• Uploaded to Zenodo: https://doi.org/10.5281/zenodo.15097159
• Published on arXiv: https://doi.org/10.48550/arXiv.2504.01050 (if you are an editor, ask Michel or Graeme for the arXiv claim code)

The paper was endorsed by ALICE, ATLAS, Belle II, CMS, DUNE, ePIC, LHCb, MCnet and WLCG!

Q. Who is going to the open symposium in Venice? It would make a good topic for an HSF Seminar to report on this.

HSF/WLCG Workshop

The agenda is available here: https://indico.cern.ch/event/1484669/timetable/

HSF Seminar Series and Compute Accelerator Forum

Planned seminars:

• Planning seminar on HS3 (HEP Statistics Serialization Standard) with multiple speakers. Still trying to find suitable date with speakers in April/June - but getting a bit late for April.
• 28th May (as announced last time): Seminar on AdePT and Celeritas update on detector simulation with GPUs.

June has a clash with the EPPSU symposium - TBD if we have a seminar.

HSF seminar conveners are reachable at hsf-seminar-conveners@gmail.com

• Please send your suggestions for this Spring seminars

Steering Group

Next SG meeting will take place on April 14th.

HSF Affiliated Projects and Software

The review of the nnpdf package in underway and the GDoc will soon be make available for feedback via the HSF Forum.

• Reviewers are Steven Mrenna and Eduardo Rodrigues.

JENA Symposium

The Joint ECFA-NuPPEC-APPEC Seminar is ongoing in Harwell this week: https://indico.global/event/5574.

There is a long session on software and computing today - full report next meeting.

Activities Updates

Planning chats between activity conveners and SG liaisons are underway.

Group	SG Liaison	Status
Data Analysis	Mark and Eduardo	Done
Detector Simulation	Torre	Done
Physics Generators	Stefan	Done
JuliaHEP	Pere	Scheduled
PyHEP	Eduardo	Done
Reconstruction and Software Triggers	Claire and Paul	Done
Tools and Packaging	Liz	Done
Training	Nicole and Graeme	Done

The AA conveners should also feel free to reach out to their liaison to speed the planning!

Please remember to update your activity page on the HSF website with the names of the current conveners.

General Standing Reminders

Website banners

We have the ability to put event banners on the HSF website. All it requires is a markdown file with the event data. See, e.g., files here.

Meetings

Please try and book meetings in Indico at least 2 weeks in advance!

That way they go into the calendar early and they will be included in the weekly email announcement that goes to HSF Forum.

Videos

When meetings are recorded (recommended), please try to put them onto:

• HSF YouTube channel (ask for permission to do this)
• (recommended over posting directly)

Then post links to these locations. See C&AF for examples.

Data Analysis

Reconstruction and Trigger

Software Training

Future events:

• HSF/WLCG Workshop - May 5-9. We will have a dedicated training session and we are working on the agenda.
• HSF/IRIS-HEP Software Basics Training (Hybrid) - Jun 18-20. Hybrid at CERN
• Deep Learning Train-the-Trainer Workshop - Sept 15-19. Organized by the HSF and ErUM-Data-Hub. In-person in Potsdam. Registration is open! Deadline: August 4

Software Tools and Packaging

Ruslan Mashinistov:

• I reached out to people who participated in the GitLab DUO pilot at CERN, as mentioned in the AI-powered development tools at CERN slides, but unfortunately received no responses.
• Shuwei Ye, an AI tools enthusiast from the BNL NPPS (physics software) group, has agreed to share his experience. He has insights on Aider, DeepSeek-R1, Copilot, Codeium, and more.
• I need advice on how to attract more presenters and participants for the AI-assisted tools HSF seminar

Detector Simulation

Physics Generators

Check with Stefan to check with the summary of the meeting which included suggested topics and maybe even a seminar.

Reconstruction and Software Triggers

Planning a new meeting with liaisons to discuss contributions.

PyHEP

PyHEP.dev 2025 Workshop will be held at University of Washington from July 14 to 17.

JuliaHEP

JuliaHEP 2025 Workshop will be held at Princeton from July 28 to 31.

• Early registration deadline for local participation: April 25
  • After April 25 an additional fee will apply
• Final registration deadline: July 7

GSoC program 2025

AOB

Next Meeting

Next meeting will be 24 April.

Chair This Meeting 👇

Please sign up for chairing a future coordination meeting. (There is even a HOWTO guide).

---