WarmWorld Faster Module Meeting 2025

1 Dec 2025, 12:45 → 3 Dec 2025, 22:00 Europe/Berlin

DWD in Offenbach

Claudia Frauen, Julia Duras (DKRZ)

The WarmWorld Faster Module Meeting 2025 will be held in person at DWD in Offenbach.

The meeting intends to review the current status and recent progress of the Faster module, define the work plan and roadmap for the remainder of the project, and look towards the next phase of WarmWorld.

Participation: The meeting is mainly reserved for WarmWorld Faster colleagues. Registrations will be limited.  The deadline for registration is November 9, 2025.

Location: DWD Headquarter, Frankfurter Straße 135, 63067 Offenbach am Main
https://www.dwd.de/EN/aboutus/locations/headquarters/headquarters_node.html 

Agenda: We have attached a draft agenda but are still waiting for confirmations of some contributions. Also, we might adapt the agenda depending on the outcomes of the ICON Allhands meeting.
 

Information_on_data_processing-WarmWorldFasterDec2025.pdf

Information_zur_Datenverarbeitung-WarmWorldFasterDez2025.pdf

Monday 1 December

12:45 → 13:00 Opening

13:00 → 15:00 WarmWorld overview and highlights

13:00 3 Years of WarmWorld Faster - What have we achieved?

Speaker: Claudia Frauen

13:30 Highlights from WarmWorld Better

Speaker: Corinna Hoose

14:00 Highlights from WamrWorld Easier

Speaker: Nils Arne Dreier

14:30 Computing the Full Earth System at 1 km Resolution

Speaker: Daniel Klocke

15:00 → 15:30 Coffee break

15:30 → 17:00 WarmWorld Faster updates and work packages

15:30 Update on Atlas and FESOM

16:00 ICON single precision

Speaker: Dylan Kierans

16:30 Update on the ComIn plugin library

Speaker: Florian Prill

Tuesday 2 December

09:00 → 09:30 HPC procurement at DKRZ

09:00 Off-topic: The HPC procurement at DKRZ

Speaker: Hendryk Bockelmann

09:30 → 10:30 ICON language interoperability

09:30 C++/Kokkos rewrite of the ICON aes physics

• Ragnarok - Infrastructure for C++/Kokkos in ICON
• Ragnarok - Contribution guidelines and documentation
• First examples: muphys, tmx, iconmath

10:30 → 11:00 Coffee break

11:00 → 12:30 ICON language interoperability

11:00 OpenICON

Speaker: Matthias Zacharuk

11:30 ICON language interoperability - discussion

• OpenICON integration with C++/Kokkos rewrite
• Roadmap for new C++ infrastructure
• How to avoid C++/Fortran duplication and return to common infrastructure
• Collection of ideas for a C++/Kokkos hands-on event in March 2026

12:30 → 13:30 Lunch break

13:30 → 15:00 ICON language interoperability

13:30 EXCLAIM

14:00 Discussion - How to combine EXCLAIM and Faster approaches?

15:00 → 15:30 Coffee break

15:30 → 17:00 Breakout groups

17:00 → 17:30 Wrap-up discussion

18:00 → 21:00 Dinner (self-paid) Ess:zimmer Offenbach

Wednesday 3 December

09:00 → 09:30 WarmWorld Faster updates and work packages

09:00 Update on ICON infrastructure libraries

Speaker: Yen-Chen Chen

09:30 → 10:30 ICON and the community and the future role of WarmWorld

09:30 ICON Open Source Release

Speaker: Uli Schättler

10:00 ICON documentation, support, and outreach

Speaker: Daniel Rieger

10:30 → 11:00 Coffee break

11:00 → 12:00 ICON and the community and the future role of WarmWorld

11:00 Discussion - The future role of WarmWorld

12:00 → 13:00 Lunch break

13:00 → 14:30 WarmWorld Faster extended status report

13:00 Preparation of the extended status report for WarmWorld Faster