USERS DAY 2025
Europe’s intelligence runs on HPC
Bringing the HPC Community Together
On 17 December 2025, Users Day brought together the Belgian and European HPC community in Brussels for a full day focused on high-performance computing and artificial intelligence. Hosted at the Marie-Elisabeth Belpaire Building, the event centered on the theme “Europe’s Intelligence Runs on HPC” and highlighted how advanced computing infrastructures are driving innovation in research, industry, and society. With inspiring keynotes, parallel VSC and LUMI-BE sessions, and strong community engagement, the day once again fostered collaboration and knowledge exchange across the HPC ecosystem.
Browse the recorded talks and slides from the VSC and LUMI-BE tracks below.
UD25 Event Report
Relive the highlights of Users Day 2025 in our event report. Discover key moments from the day, including inspiring keynote sessions, in-depth parallel talks from the VSC and LUMI-BE tracks, and engaging discussions on high-performance computing and AI. Hear reflections from speakers and participants and get a sense of the strong community interaction throughout the event. Whether you joined us in Brussels or couldn’t attend, this report captures the insights, expertise, and connections that defined VSC User Day 2025.
VSC Recorded Presentations
Missed a session or want to revisit the highlights of VSC User Day 2025? Explore the recorded presentations, available as YouTube videos and downloadable PDF slides.
Andreas Lintermann
Jülich Supercomputing Centre
Learning from Large-Scale Computational Fluid Dynamics Simulations
Ward Poelmans
VUB
AI Factories
Louis-Philippe Kerkhove
UGent
Algorithmic Thinking in a World of Abundant Computation: Insights from the Field
Jan Ooghe & Ward Poelmans
VSC
Update on sofia (new Tier-1), follow-up on VSC Survey 2024 and data policies.
Andres Algaba
VUB
LLMs Without HPC? Good Luck!
Michel Rasquin
Cenaero
Tiering up
Eric Wulff
CERN
Supercharging AI with Hyperparameter Optimization and HPC
VSC Lightning Talks
Short, focused presentations showcasing innovative ideas, research insights, and practical HPC use cases from the VSC user community. Click on a title to view the PDF presentation.
Best Lightning Talk
We extend our heartfelt congratulations to Tibo Van den Eede (KU Leuven – KULAK) for winning the Best Lightning Talk Award at VSC User Day 2025 for his presentation, “Advancing Graph Theory with the Computer.”
Awarded Certificate
A snapshot of Tibo's well-deserved certificate awarded by VSC
LUMI Presentations
Concise presentations highlighting research and applications supported by the LUMI infrastructure. Presentation titles link to the recorded video and/or the PDF slides.
Event Gallery
A selection of moments captured during VSC User Day 2025, highlighting the sessions, speakers, and community throughout the day.
IN COLLABORATION WITH
