21st ECMWF workshop on high performance computing in meteorology
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Location: DAMA - Tecnopolo di Bologna, Via Stalingrado 84/3, 40128 Bologna
| Monday, 15 September 2025 | ||
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| Arrival | ||
| 12:30 to 13:45 | Registration and coffee | |
| Opening session | ||
| 13:45 to 13:55 | Practical arrangements | |
| 13:55 to 14:00 |
Welcome to Bologna and opening remarks
Video recording |
Speaker: Morena Diazzi (Emilia-Romagna Region)
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| 14:00 to 14:15 |
ECMWF at 50
Video recording |
Speaker: Florence Rabier (ECMWF)
Speaker: Andy Brown (ECMWF)
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| 14:15 to 14:30 |
Meeting the needs of users
Video recording |
Speaker: Roar Skålin (Norwegian Meteorological Institute)
Speaker: Florian Pappenberger (ECMWF)
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| 14:30 to 14:45 |
Supercomputing
Video recording |
Speaker: Martin Palkovic (ECMWF)
Speaker: Christine Kitchen (ECMWF)
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| 14:45 to 15:00 |
Destination Earth
Video recording |
Speaker: Grazyna Piesiewicz (European Commission)
Speaker: Irina Sandu (ECMWF)
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| 15:00 to 15:30 | Coffee break | |
| Keynote address and panel discussion | ||
| 15:30 to 15:50 |
Machine Learning in today's meteorology
Video recording |
Speaker: Mariana Clare (ECMWF)
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| 15:50 to 16:30 |
Panel discussion on the role of machine learning
Moderator: Morena Diazzi Panellists:
Video recording |
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Optional seminar
Live from Bologna!
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| 16:45 to 17:45 | Cycle 50r1 |
Speaker: Andy Brown (ECMWF)
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Location: DAMA - Tecnopolo di Bologna, Via Stalingrado 84/3, 40128 Bologna
| Tuesday, 16 September 2025 | ||
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| Arrival | ||
| 07:30 to 08:00 | Registration and coffee | |
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Session 1: Joint with Destination Earth Annual Meeting
Session chair: Martin Palkovic (ECMWF)
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| 08:00 to 08:15 |
Introduction to the Destination Earth Initiative
Video recording |
Speaker: Grazyna Piesiewicz (European Commission)
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| 08:15 to 08:30 |
A strategic partnership with EuroHPC
Presentation slides Video recording |
Speaker: Josephine Wood (EuroHPC JU)
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| 08:30 to 09:00 |
Implementing Digital Twin technology
Keynote presentation Presentation slides Video recording |
Speaker: Nils Wedi (ECMWF)
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| 09:00 to 09:30 | Coffee break | |
| 09:30 to 09:55 |
The CINECA HPC and AI infrastructure for Science and Innovation integrated into the EuroHPC ecosystem
Presentation slides Video recording |
Speaker: Sanzio Bassini (CINECA)
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| 09:55 to 10:20 |
Towards AI supercomputing with LUMI-AI
Presentation slides Video recording |
Speaker: Pekka Manninen (CSC)
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| 10:20 to 10:45 |
European Exascale Era: JUPITER and Its Applications
Presentation slides Video recording |
Speaker: Mathis Bode (Jülich Supercomputing Centre, Forschungszentrum Jülich)
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| 10:45 to 11:10 |
Alice Recoque and AI Factory France : beyond Exascale toward the convergence of HPC, AI and Quantum
Presentation slides Video recording |
Speaker: Éric Boyer (Genci)
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| 11:10 to 11:35 |
Convergence of exascale AI and HPC for societal benefit at the BSC
Presentation slides Video recording |
Speaker: Miguel Castrillo (BSC-CNS)
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| 11:35 to 13:00 | Lunch break | |
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Session 2
Session Chair: Samuel Hatfield (ECMWF)
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| 13:00 to 13:20 |
GPU-adaptation of the IFS
Presentation slides Video recording |
Speaker: Michael Lange (ECMWF)
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| 13:20 to 13:40 |
Cross-platform optimisation for GPUs of various flavours (the low-level tech overview)
Presentation slides Video recording |
Speaker: Ahmad Nawab (ECMWF)
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| 13:40 to 14:00 |
Flexible GPU offloading strategies with the Atlas library using Pluto
Presentation slides Video recording |
Speaker: Willem Deconinck (ECMWF)
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| 14:00 to 14:20 |
Efficient spectral transformations on NVIDIA hardware
Presentation slides Video recording |
Speaker: Lukas Mosimann (NVIDIA)
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| 14:20 to 14:40 |
Adapting Destination Earth's Digital Twins to EuroHPC supercomputers
Presentation slides Video recording |
Speaker: Balthasar Reuter (ECMWF)
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| 14:40 to 15:10 | Group photo and coffee break | |
| 15:10 to 15:30 |
Profiling and GPU Porting of RAPS and ecWAM Models for EuroHPC Architectures
Presentation slides Video recording |
Speaker: Fabio Di Sante (Cineca)
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| 15:30 to 15:50 |
Porting and benchmarking GRAF on AWS
Presentation slides |
Speaker: Tim Brown (AWS)
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| 15:50 to 16:10 | On the use of different arithmetic precisions and its impact on dynamic systems |
Speaker: Florent Duguet (NVIDIA)
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| 16:10 to 16:30 | Scaling IFS to 1km and beyond |
Speaker: Ioan Hadade (ECMWF)
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| 16:30 to 16:50 |
Good ideas are persistent - pick them up!
Presentation slides Video recording |
Speaker: Luis Kornblueh (Max Planck Institute forMeteorology)
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Location: DAMA - Tecnopolo di Bologna, Via Stalingrado 84/3, 40128 Bologna
| Wednesday, 17 September 2025 | ||
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| Arrival | ||
| 07:30 to 08:00 | Registration and coffee | |
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Keynote presentation
Session chair: Christine Kitchen (ECMWF)
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| 08:00 to 09:00 |
EAIRA: Establishing a Methodology for Evaluating AI Models as Scientific Research Assistants
Presentation slides Video recording |
Speaker: Franck Cappello (Argonne National Laboratory)
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Session 3: Joint with UEF2025
Chairs: Christine Kitchen (ECMWF) and Becky Hemingway (ECMWF)
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| 09:00 to 09:30 | Coffee break | |
| 09:30 to 09:50 |
AICON - Introducing ML-based weather forecasting at DWD
Presentation slides Video recording |
Speaker: Florian Prill (German Weather Service DWD)
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| 09:50 to 10:10 |
Community AI at NSF NCAR
Presentation slides Video recording |
Speaker: John Clyne (National Center for Atmospheric Research (NCAR))
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| 10:10 to 10:30 |
AIFS case studies
Presentation slides Video recording |
Speaker: Linus Magnusson (ECMWF)
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| 10:30 to 11:30 |
Forecast users and HPC shaping the future together - a panel discussion
Chairs: Chris Kitchen and Becky Hemingway Panel members:
Video recording |
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| 11:30 to 13:00 | Lunch break | |
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Session 4
Session chair: Christine Kitchen (ECMWF}
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| 13:00 to 13:20 | The DTN AI Weather Revolution: Turning complex data into decision-grade insights using machine learning |
Speaker: Satheesh Maheswaran (AWS)
Speaker: Stefan Weissenberger (NVIDIA)
Speaker: Sam Lillo (DTN)
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| 13:20 to 13:40 | Optimizing Large-Scale Graph Neural Networks for the NVIDIA Grace Hopper Architecture |
Speaker: Maximilian Stadler (NVIDIA)
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| 13:40 to 14:10 | Improving the scalability and I/O of AIFS |
Speaker: Jan Polster (ECMWF)
Speaker: Cathal O Brien (ECMWF)
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| 14:10 to 14:30 | Coffee break | |
| 14:30 to 15:30 | Tour of the Computer Hall | |
| 15:00 to 16:30 | Joint HPC and UEF Poster Session | |
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Evening reception
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| 16:30 to 17:00 | Welcome drinks | |
| 17:00 to 17:10 |
Welcome speeches
Dr Florence Rabier (Director General of ECMWF) Vincenzo Colla (Vice-Presidente Regione Emilia-Romagna) Anna Lisa Boni (Comune di Bologna) General Giuseppe Addesa (Aeronautica Italia)
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| 17:10 to 18:30 | Buffet and drinks | |
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Location: DAMA - Tecnopolo di Bologna, Via Stalingrado 84/3, 40128 Bologna
| Thursday, 18 September 2025 | ||
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| Arrival | ||
| 07:30 to 08:00 | Registration and coffee | |
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Keynote presentation
Session chair: Ioan Hadade (ECMWF)
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| 08:00 to 09:00 | Can Climate Science Win the Hardware Lottery? |
Speaker: Katherine Yelick (UC Berkeley)
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Session 5
Session Chair: Ioan Hadade (ECMWF)
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| 09:00 to 09:30 | Coffee break | |
| 09:30 to 09:50 | Past, present, and future of HPC at ECMWF |
Speaker: Michael Hawkins (ECMWF)
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| 09:50 to 10:10 | Paving the way for AI? - Development of HPC and NWP in the last Decades (The DWD Perspective) |
Speaker: Ulrich Schättler (Deutscher Wetterdienst)
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| 10:10 to 10:30 | An Update on High-Performance Computing at Météo-France |
Speaker: François Bouyssel (Météo-France)
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| 10:30 to 10:50 | From LEO to Azure: The UK Met Office HPC Journey |
Speaker: Paul Selwood (Met Office)
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| 10:50 to 11:10 | An Update on High-Performance Computing at the Japan Meteorological Agency |
Speaker: Katsuhiko Ganzu (Numerical Prediction Division, JMA)
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| 11:10 to 11:30 | Past, present and future of HPC at the Australian Bureau of Meteorology |
Speaker: Tom Gale (Bureau of Meteorology)
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| 11:30 to 13:00 | Lunch break | |
| 13:00 to 13:20 | From Past to Future: ECCC’s HPC and the Transformation of Weather Services |
Speaker: Vincent Fortier (Environnement et Changements Climatiques Canada)
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| 13:20 to 13:40 | Past, present, and future of HPC at the CMA |
Speaker: Shuai Deng (National Meteorological Information Centre)
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| 13:40 to 14:00 | Past, present, and future of HPC at the National Weather Service |
Speaker: David Michaud (NOAA/National Weather Service)
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| 14:00 to 14:20 | Perspectives on High-Performance Computing in Meteorology in the Era of Heterogeneous Processor Architecture-Based Supercomputers |
Speaker: Ji-Sun Kang (Korea Institute of Science and Technology Information)
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Session 6
Session chair: Balthasar Reuter (ECMWF)
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| 14:20 to 14:40 | The NSF NCARCommunity Software Facility: Transforming Software Engineering for Earth System Models |
Speaker: Thomas Hauser (NCAR)
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| 14:40 to 15:10 | Coffee break | |
| 15:10 to 15:30 | FORGE: Re-generating a forecast system for sustainability |
Speaker: Michael Lange (ECMWF)
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| 15:30 to 15:50 | A Python Dynamical Core for Operational Numerical Weather Prediction |
Speaker: Daniel Hupp (MeteoSwiss)
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| 15:50 to 16:10 | Bringing Performance Portability to ICON |
Speaker: Magdalena Luz (ETH Zurich)
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| 16:10 to 16:30 | Developing ECMWF's next-generation performance-portable atmospheric dynamical core |
Speaker: Sara Faghih-Naini (ECMWF)
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| 16:30 to 16:50 | GPU Porting of ECMWF Physical Parametrizations using a High-Level Programming Model |
Speaker: Stefano Ubbiali (ETH Zurich)
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All times are shown in the selected time zone.
Location: DAMA - Tecnopolo di Bologna, Via Stalingrado 84/3, 40128 Bologna
| Friday, 19 September 2025 | ||
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| Arrival | ||
| 07:30 to 08:00 | Registration and coffee | |
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Session 7
Session chair: Tiago Quintino (ECMWF)
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| 08:00 to 08:20 | Mapping Earth System Components to compute architectures for Optimized Throughput, Hardware Utilization and Energy Efficiency |
Speaker: Jan Frederik Engels (German Climate Computing Center)
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| 08:20 to 08:40 | Enhancing Tape Library Access Efficiency through Load Balancing at ECMWF |
Speaker: Sebastien Denvil (ECMWF)
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| 08:40 to 09:00 | High performance data |
Speaker: Tom Gale (Bureau of Meteorology)
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| 09:00 to 09:20 | I/O in LFRic: Collaborative Complexity |
Speaker: Iva Kavčič (Met Office)
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| 09:20 to 09:50 | Coffee break | |
| 09:50 to 10:10 | Containerization and deployment of weather models on EuroHPC JU infrastructures |
Speaker: Massimo Gisonni (CINECA)
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| 10:10 to 10:30 | Cross-Domain Insights on Federated Computing for Weather Workflows |
Speaker: Layla Loffredo (SURF B.V.)
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| 10:30 to 10:50 | Building multi-platform end-to-end capability in the Destination Earth On-demand Extremes digital twins: an integrated NWP-air quality workflow |
Speaker: Tommaso Benacchio (Danish Meteorological Institute)
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| 10:50 to 11:10 | Data-awareness with Maestro middleware in Climate Digital Twin workflows |
Speaker: Ali Mohammed (HPE HPC/AI EMEA RESEARCH LAB (ERL))
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| 11:10 to 11:30 | A modern Data Platform to improve Workflows and Pipelines |
Speaker: Giuseppe Trotta (Cineca)
Speaker: Sven Breuner (VAST Data)
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| 11:30 to 11:45 | Closing remarks |
Speaker: Martin Palkovic (ECMWF)
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