10 June 2025
JUPITER at the Forschungszentrum Jülich in North Rhine-Westphalia, Germany, becomes the fastest supercomputer in Europe. JUPITER, developed by the Jülich Supercomputing Centre (JSC) and owned by EuroHPC JU, ranks 4th on the June 2025 TOP500 list of the world's fastest supercomputers and stands as the most energy-efficient system of the top 5 of the listing, which was presented today at the International Supercomputing Conference (ISC) in Hamburg.
This enables, for instance, the training of the largest AI models, known as large language models (LLMs). At full capacity, JUPITER needs less than one week to complete the task.
In the future, the Booster partition will be supported by a Cluster partition, supplied by ParTec, featuring conventional central processing units (CPUs) with high memory bandwidth. The Cluster is specially designed for data-intensive tasks.
With its enormous computing capacity, JUPITER opens up new possibilities in a wide range of application areas. Climate and weather simulations can be enhanced and will significantly improve predictions of local extreme weather events, such as heavy rain and severe thunderstorms. JUPITER will also drive the development and optimization of a sustainable energy system.
Outstanding energy efficiency
JUPITER is also setting new standards in terms of energy efficiency - with more than 60 billion floating point operations per watt, JUPITER is the most efficient computer of the five fastest systems in the world.
With its highly efficient warm water-cooling system, JUPITER is also designed to use the waste heat generated in operation to heat buildings and will be integrated into the Jülich campus heating network.
Early access for research and AI
JUPITER Booster and its storage systems have been fully installed. Scientific users will get access in the coming weeks. Over 100 national and international applications have been selected via the JUPITER Research and Early Access Program (JUREAP), the GCS Exascale Pioneer Call, and the Gauss AI Compute Competition for AI projects.
Funding
JUPITER, short for "Joint Undertaking Pioneer for Innovative and Transformative Exascale Research", is funded half by the European High Performance Computing Joint Undertaking (EuroHPC JU) and a quarter each by the Federal Ministry of Research, Technology and Space (BMFTR, formerly BMBF) and the Ministry of Culture and Science of the State of North Rhine-Westphalia (MKW NRW) via the Gauss Centre for Supercomputing (GCS).
Statements
JUPITER represents a historic milestone, already propelling Europe's computing power to an unprecedented level, even before its final acceptance. With its exascale capabilities, JUPITER will drive breakthroughs in science, industry, and society, reinforcing Europe's technological sovereignty and global competitiveness. I am looking forward to seeing it reach its full performance in the coming weeks.Anders Jensen, EuroHPC JU Executive Director
Artificial intelligence is the raw material of the digital age. The JUPITER supercomputer is the turbine that enables us to make meaningful use of this new raw material. We are proud that one of the world's fastest computers was conceived by the Jülich Supercomputing Centre in the Rhenish region. I am confident that JUPITER will become a powerful magnet for the brightest minds around the globe. They will help us develop AI applications that make our everyday lives easier and better - from diagnostics and therapy in medicine to smart mobility solutions.Ina Brandes, Minister of Culture and Science of the state of North Rhine-Westphalia
JUPITER is a key pillar of Europe's digital sovereignty. Even today, it is setting new standards that demonstrate its potential for science, industry, and society in the field of artificial intelligence.Prof. Dr. Astrid Lambrecht, Chair of the Board of Directors at Forschungszentrum Jülich
JUPITER is the culmination of more than ten years of development work by the JSC in collaboration with European and international partners. JUPITER will be the world's most advanced and versatile exascale system for high-precision simulations and the training of the largest AI models.Prof. Dr. Dr. Thomas Lippert, Director of the Jülich Supercomputing Centre
Photo gallery
View between racks of the JUPITER supercomputer. Copyright: Forschungszentrum Jülich / Sascha Kreklau (editorial use permitted with attribution to the source)
Ansprechpartner
Prof. Dr. Dr. Thomas Lippert
Head of Jülich Supercomputing Centre Prof. at Goethe University Frankfurt
Speaker of Helmholtz Information Program 1, PI in Topics 1 and 2 & Joint Lab SMHB
- Institute for Advanced Simulation (IAS)
- Jülich Supercomputing Centre (JSC)
Benedikt von St. Vieth
Head of Division HPC, Cloud and Data Systems and Services
PI in Helmholtz Information Program 1, Topic 2
- Institute for Advanced Simulation (IAS)
- Jülich Supercomputing Centre (JSC)
