Eviden unveils Europe's most powerful supercomputer: JUPITER

On September 5, 2025, Eviden, a product brand of the Atos Group, unveiled the JUPITER Booster at the Jülich Supercomputing Centre in Germany. Dignitaries, including Friedrich Merz, Germany's Federal Chancellor, marked the occasion. JUPITER is Europe's most powerful and the world's fourth-ranked HPC and AI system.

Achieving a milestone, JUPITER has become the first in Europe to surpass the massive threshold of one quintillion calculations per second. This feat is equivalent to the collective power of 10 million modern desktop computers, enhancing Europe's technological edge.

Commissioned through the EuroHPC JU initiative and housed in Germany, JUPITER offers intense computing capabilities for simulations and AI, coupled with energy efficiency through Eviden’s Modular Data Center approach.

The booster partition is fitted with 24,000 NVIDIA GH200 Grace Hopper Superchips and employs NVIDIA Quantum-2 InfiniBand networking. Optimised for AI models and simulations, Eviden's Direct Liquid Cooling technology underpins its energy efficiency, helping the JEDI module top the Green500 ranking in June 2025.

JUPITER promises numerous breakthroughs:

• Artificial Intelligence Development: Its unparalleled power accelerates large language model training, boosting generative AI projects such as OpenGPT-X—a multilingual advancement focused on German, promoting efficiency and innovation across sectors.
• Climate Science Enhancement: JUPITER enables the ICON atmospheric model to simulate future climate scenarios in unprecedented detail, refining forecasts for extreme weather and climate change impacts, enhancing understanding of rising CO₂ implications.
• Neurobiological Simulations: Researchers can now simulate the brain’s neural networks with unprecedented detail using JUPITER, offering insights into learning, memory, and diseases like Alzheimer’s.

JUPITER stands as a beacon for European innovation, empowering researchers, industries, and public entities to drive advancements with unmatched scale and efficiency.