# EasyBuild User Meeting 2025 (EUM'25)

## Dates & venue

* Tue-Thu 25-27 March 2025
* Rotunda meeting room at Jülich Supercomputing Centre, Jülich (Germany)
* https://easybuild.io/eum25
* registration open since 14 Jan 2025
* (20250213) 51 registrations
* incl. 8 remote ones (12 unclear on in-person vs remote)
* incl. 9 from JSC (in-person)
* 10 EasyBuild maintainers (1 + retired maintainer)
* 6 from companies (Do IT Now, E4, INUITS, Red Oak Consulting, Fraunhofer, Meteomatics AG, NVIDIA)
* 2(+1) in-person from outside Europe
* not registered yet but coming in-person: Robert McLay (TACC)

## Things to discuss

- ...

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## Next sync meeting

- Wed 5 Mar 16:00 CET (except Damian)

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## Sync meeting (20250305)

- program
- (Kenneth) fix speaker for JUPITER talk to Damian
- (Kenneth) confirm talk with Michael Klemm
- (Kenneth) confirm remote talk on Waldur
- DC tour
- (Kenneth) re-open register for online attendance via event.ugent.be
- let Markus Wagner register for in-person
- dinners
- Mon dinner @ https://cafe-extrablatt.de/standorte/details/cafe-extrablatt-juelich/ (self-funded, walkable)
- Tue dinner (JSC)
- Wed dinner (INUITS) reserved => ok to pay by invoice, requires confirmation letter
- Thu dinner (INUITS) reserved => awaiting feedback on paying by invoice
- social event
- kart center: still awaiting confirmation letter from Do IT Now
- should be using `@doitnowgroup.com` email
- event catering: all good
- (Kenneth) name tags
- incl. logos/sponsors/GitHub handle
- (Kenneth) cars puzzle
- separate for Julich to JSC + social event
- (Bernd,Kenneth) email with practical info
- informan dinner Monday @ Extrablatt
- get badge on Monday if possible (until what time? 17:00?)
- badge on Tue morning early enough (by 9am at least)
- mobile phone numbers for last-minute info
- (Alan) recording/streaming
- standard HDMI OK for speakers
- watermark EB easybuild.io/eum25
- Zoom session via Univ. of Birmingham
- stream/record via OBS (Alan)

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## Sync meeting (20250214)

- 50 max w.r.t in-person registrations + group dinners
- 40 max with tables for everyone
- 45 would be optimal for group dinner + social event
- registration closed now, need to check if we still have seats
- social event
- can we work it out without renting a bus?
- ask Eli to provide "written promise of payment"
- sponsoring
- JSC: catering (coffee/lunch) + 1 group dinner (Tue Jougoslavian)
- Do IT Now: social event (Wed)
- INUITS/Azure: 2 group dinners (Wed Italian + Thu smaller group)
- via invoice
- restaurants
- booked for Tuesday + Thursday at 19:30 => 19:00
- not yet for Wednesday
- Tue: https://www.hotel-hexenturm.de/restaurant/ => JSC
- Wed (to book): https://lapiazza-kerpen.de/ => INUITS (invoice)
- Thu: https://einhorn-juelich.de/ => INUITS (invoice)
- closing party on Thursday?
- via Alexandre
- questions on missing information to people who registered => Kenneth
- in-person or remote per day
- will you join dinner Tue/Wed/Thu
- closing party
- attend social event
- car available + how many free seats
- are all speakers registered? => Kenneth

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## Sync meeting (20250121)

### Sponsoring

- JSC
- lunch + coffee breaks?
- [Kenneth] Microsoft/INUITS combo sponsoring: for what (dinner, social event, ...)?
- not sure this is going to fall through, TBD
- HPCNow has confirmed they will sponsor \o/
- group dinner
- maybe AMD via JP?
- ~~INUITS?~~

### Practical

- live streaming of talks (Sebastian/Alan will take care of this)
- Rotunda streaming setup is not super-stable...
- Sebastian can look into solutions/other options that
- Alan has good setup he can bring
- wired connection possible?
- social event on Wed afternoon (Bernd?)
- bus (how many seats)?
- who has a car to take people?
- book indoor for 1h?
- 2x 10min race per person?

### Agenda

- Tue
- (10:00) keynote 1h
- (11:00) state of the union
- 13:00) EB5
- 13:30-14:30) 2 talks
- 14:30) coffee break
- 15:00) 1h => 2 talks
- 16:00) JUPITER (Damian/Benedikt + Sebastian software)
- (17:00-18:00) tour of JUPITER (?)
- Wed
- (09:00) keynote
- (10:00) 1/2 talks + coffee break
- (11:00) 1h (2-3 talks)
- (13:00) 2h (4-6 talks)
- (15:00) end Wed
- (15:00-18:00) social event
- bus?
- Thu
- (09:00) 1h keynote
- (10:00) coffee
- (10:30) 3-4 talks
- (12:00) lunch
- (13:00-14:30) 1.5h => 4 talks on testing & CI
- 14:30) coffee
- (15:00) 1h => 2 talks
- (16:00) end Thu

- keynote(s)?
- x [Kenneth] EFP (Henrik Nortamo, CSC?)
- Thu morning?
- x [Kenneth] JP Lehr (AMD) on ROCm?
- Tue morning?
- x [Kenneth] Jeff Hammond (NVIDIA) on common MPI API?
- https://dl.acm.org/doi/fullHtml/10.1145/3615318.3615319
- Wed morning first talk
- EasyBuild related
- x State of the Union - 1h [Kenneth]
- x EasyBuild 5.0 - 30min [Simon?]
- Clang vs GCC (compiler in foss) - 30min [Davide (CECAM)?]
- OpenGL - 30min (Jens-Henrik, JSC)
- Getting Started as EasyBuild Contributor - 15-30min (Jan, JSC)
- site talks (~15min):
- (attendees)
- EESSI-related (Thu)
- INUITS: improving GPU support in EESSI (Pavel G.) ???
- EESSI intro/update (who?) (Lara, UGent)
- ~~Thomas' FOSDEM talk: RDM on top of EESSI~~ (Thomas is not attending EUM)
- SURF Research Cloud (via Ivar) - 15min
- EESSI test suite 15min (Caspar, SURF)
- Magic Castle (Alan) - 20min
- MultiXscale - 15min (Alan)
- LEXIS (Martin @ IT4I, REMOTE?) - 20min
- 1h30min Thu after lunch
- EESSI CI/CD (GitHub/GitLab CI, dev.eessi.io) - 15min (Pedro, RUG)
- ReFrame (Vasileios?) [remote?]
- ~~Ramble (Doug Jacobsen @ Google) [remote] - 20min?~~ (nobody can make it to give a remote talk, so scratched)
- Continuous Benchmarking (Dirk Brömmel), see https://zenodo.org/records/14500262
- also extra talk via Jayesh Badwaik on Cont. Benchmarking (see DM Kenneth in EasyBuild Slack)
- non-EasyBuild talk ideas (to invite) [Tue-Wed]:
- Brian Wylie (JSC): POP3 - Jan can invite
- Bernd Mohr: How to retire in HPC - Jan can invite (last talk)
- Markus Geimer: Scalasca - Jan can invite
- x JUPITER (Benedikt or Damian, JSC) - 1h
- also covering software stack (maybe by Sebastian)
- Do IT Now (Helena, sponsor talk)
- Lmod: Robert McLay/Matt [in person] - 30min?
- Environment Modules: Xavier
- Open OnDemand? [remote?]
- Spack update (Todd) [remote] - 20min?
- Blablador + state of (open) LLMs (Alexandre Strube) - 20min

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## Kickoff meeting (20241011)

* in Jülich
* somewhat connected to JUPITER
* actual tour of JUPITER may be difficult in April'25
*
* when?
* usually ~April
* Easter: 20 April 2025
* 14-25 April is Easter holidays in Germany
* in Belgium: 7-18 April
* other events
* ISC'25 in Hamburg: 10-13 June 2025
* EuroHPC Summit in Poland: 18-20 March
* Tue-Thu 1-3 April or Tue-Thu 8-10 April 2025
* Rotunda meeting room is booked for these weeks
* **Mon-Fri 24-28 March 2025: Rotunda is free**
* max. capacity: 60 => 50 seats max.
* with tables: ~40
* Mon-Wed 28-30 April 2025: Rotunda is free
* Thu 1 May is public holiday
* less ideal option
* logistics
* https://www.fz-juelich.de/en/about-us/contact-visitor-information/how-to-reach-us
* hotels in Jülich are limited, so people NEED to book early!!!
* In Jülich (with Bus connection to Lab)
* Stadthotel Jülich, https://www.stadthotel-juelich.de/
* Hotel am Hexenturm, https://www.hotel-hexenturm.de/
* In Jülich (BUT 1.5km/20min walk to bus)
* JUFA Hotel im Brückenkopfpark/Jülich, https://www.jufahotels.com/hotel/juelich/
* In villages close to Jülich (BUT need car, 10min drive)
* Gut Alte Burg Hotel, https://www.gut-alte-burg.de/
* Hotel Royal, https://www.a-hotel.com/
* Burg Obbendorf, https://www.burgobbendorf.de/
* In Düren (45min on-way trip combined walk+train)
* Hotel Dorint, https://hotel-dueren.dorint.com/de/

* hybrid meeting: on-site + Zoom/YouTube
* Alan can take care of hybrid aspect (if he's attending)
* built-in Zoom (Polycom) in Rotunde
* sometimes unreliable, so maybe avoid it
* registration
* preferably at JSC (via Indico), for visitor pass
* should be both in-person or remote
* group dinners, etc.
* sponsoring
* catering
* JSC can cover lunches / coffee breaks (drinks only)
* 3 lunches, 6 coffee breaks (+ 1 dinner)
* JSC could cover 1 group dinner
* at least 50% should be external, ideally 2/3rd external
* external sponsors (for dinner, or ...)
* possibly INUITS, Microsoft, ...
* agenda
* JUPITER
* History of EasyBuild @ JSC
* Performance tools (POP, etc.)
* keynote?
* NVIDIA?
* AI?
* social event
* M. Schumacher kart center (https://www.ms-kartcenter.de)
* actual racing karts!
* 1h => 70 euro/kart (indoor: 18 karts, outdoor: 23 karts)
* can handle 40-50 people
+ bus to get there (~40min)
+ afternoon event
* restaurant afterwards
* external sponsor?
* alternatives:
* local mining operations tour
* dinner in Aachen + city tour