Present/Contributing: Stefan Roiser, Graeme Stewart, Michel Jouvin, Jamie Gooding, Tommaso Lari, Krzysztof Genser, Reiner Hauser, Claire Antel, Liz Sexton-Kennedy, Eduardo Rodrigues, Joe Osborn, Alexander Moreno, Mark Neubauer
Apologies/Contributing: Benedikt Hegner, Pere Mato
News, general matters, announcements
ePIC Software & Computing Meeting at CERN
This week has been ePIC Software & Computing at CERN.
Tomorrow (Friday 26 April) there is a joint HSF/ePIC session with talks on HSF and Common Software Projects (Benedikt Hegner) and on Key4hep (André Sailer). All welcome to join!
HSF Joint Workshop with WLCG
Workshop timetable is now finalised.
Registration closes tomorrow (26 April), so if you want to attend in person, last chance!
We have a great selection of software talks and a dedicated session on training activities.
In plenary we shall cover:
- HSF Retrospective and Future (Graeme)
- HSF Organisation and Activities (Paul)
- HSF Software Projects (TBD)
Then there will be a 10’ wrap-up on the last day.
There will also be a dedicated session on Analysis Facilities.
Google Summer of Code 2024
Deadline for evaluation input was last week.
We are still waiting for news on slots awarded.
HSF Evolution
The Core Coordination Team have been meeting fairly regularly to discuss how we evolve the HSF to be most effective.
We have discussed a number of points:
- Updated HSF Motivation
- Evolving from the era of the CWP
- Keeping the same general principles of working together for common solutions to problems
- A newly defined Core Coordination Team Mandate
- Give this group a more formal structure (regular meetings and an elected chair)
- Define better the roles played by the members, with specific responsibilities
- A new Advisory Group, with HSF Engaged Communities (experiments, service providers like WLCG), that provide their input and advice on HSF strategy
- This group only give advice
- It should have an elected chair from the ECs
- Meets ~1/year
- The relationship with software projects; final document still in preparation, but a number of promising lines identified
- HSF endorsement/recognition for community software projects
- This is a “badge” system, with different levels
- Projects need to be evaluated
- No control is ceded to the HSF - the project is owned and controlled by its developers
- This is just as relevant for small projects and tools as large ones (maybe even more so!)
- HSF Projects
- Where a project has been developed in closer association with the HSF and had direct input
- e.g., prmon, Phoenix, Harvester
- HSF reference implementations
- Where a common problem exists the HSF can setup a group of experts to study it
- Should result in a whitepaper on solutions
- Then followed by a reference implementation
- HSF “Reviews”
- For projects wishing to have a group of experts from the community review their implementation or requirements
- e.g., Detector simulation on GPUs, DUNE framework requirements
- Effort/resources from the HSF
- Still considering this and how it could work, modelling on, e.g., NumFOCUS, which gets foundation funding and industry support
- Limited to auxiliary support, e.g., for workshops or travel
- Paying people a salary is extremely complicated
- Would we stand a chance of getting foundation type funding?
- This will require leg-work, but there is some chance that it would be successful if spun in the right way
Working Group Updates
Data Analysis
- Planning a DAWG meeting for talk on CMS Combine (in touch with Nick Wardle) + update on HS3 (in touch with Carsten Burgard), nominally 10th June
PyHEP
- PyHEP 2024 (1–4 July, 2024) registration and call for abstracts is open now
- PyHEP.dev 2024 (26–30 August, 2024) organisation continues
Detector Simulation
Software Training
- Next Training Events:
- May 20-21, Software Carpentry
- Jun 3, Scikit-hep/ROOT
- Sept 27-29, Julia (in person at CERN)
- Don’t forget the training session at the WLCG-HSF workshop
- The pre-CHEP workshop will be an HSF Training Community Event
C++ Course and Hands-on Training
- An advanced C++ course will be held in fall, exact dates TBD
Reconstruction and Software Trigger
- Organising a topical meeting on “4D tracking @ Belle II”:
- Confirmed date: 8th May
- Agenda: https://indico.cern.ch/event/1399441/
- Not announced in mailing list yet.
- Two talks: “Hit Timing Determination in Belle2 SVD” (Luigi Corona) & “SVD Timing in Tracking at Belle2” (Thomas Lueck)
- Thanks to Giulia for providing the speakers and Joe for following up.
- Discussion with some others about an additional 4D tracking meeting to follow the Belle2 focused discussion
- To get WG google-group white listed by CERN IT (before sending a first email), it helped to cc Graeme in ticket who linked past tickets and attached screenshots
It’s the xorlabs filter that does this, see tickets INC3759294 and INC3761021. I pasted a few screenshots of how this happened for other HSF lists that are now unblocked.
JuliaHEP
- Topical group meetings:
- JuliaHEP 2024 Workshop at CERN (end of September - beginning of October):
- We plan to have a topical meeting on experience with using SPACK in existing experiments
- CMS, LHCb, FNAL (Patrick, TBC)
- No date set yet, we would prefer to have a single meeting rather than spread it out over multiple ones
Other Interest and Activity Areas
Analysis Facilities
Session at the WLCG-HSF workshop to look forward to.
Compute and Accelerator Forum
Indico agenda
- 8 May: GPU infrastructure and tools being developed; CERN infrastructure update
- 29 May: NVidia Update
- 12 June: AMD GPU roadmap
Event generators
We should have a BoF for the generator people at the workshop, because quite a few are coming.
AOB
OSCARS Open Call
The OSCARS call is open until 14 May (https://oscars-project.eu/open-calls).
Other workshops
Next Meetings
The next meeting will be on 9 May.
Reminder: please sign up for chairing one of the 2024 meetings.
We now have a guide for running the meeting!