Jupiter (supercomputer)

Jupiter
Jupiter Supercomputer at Forschungszentrum Jülich
Active
  • Deployment: 2024
  • Completion: June 2025
SponsorsEuroHPC JU
OperatorsForschungszentrum Jülich, Jülich Supercomputing Centre
LocationForschungszentrum Jülich, North Rhine-Westphalia, Germany
ArchitectureModular architecture with NVIDIA GH200 Grace Hopper Superchips
Power18.2 megawatts
Operating systemLinux-based HPC OS
SpaceTBA
Memory288 Arm Neoverse cores capable of achieving 16 petaflops of AI performance using up to 2.3 terabytes of high-speed memory
StorageHigh-capacity, high-speed storage solutions
Speed1.000 exaFLOPS (Rmax) / 1.226 exaFLOPS (Rpeak) (as of November 2025)
Cost€500 million
PurposeScientific research and development, AI model training, climate modeling
WebsiteOfficial Jupiter Project Page

Jupiter is an exascale supercomputer hosted at Forschungszentrum Jülich in North Rhine-Westphalia, Germany. Developed by the Jülich Supercomputing Centre (JSC) and owned by the European High-Performance Computing Joint Undertaking (EuroHPC JU), Jupiter became operational in June 2025. It is based on a modular architecture featuring NVIDIA GH200 Grace Hopper Superchips and is recognized as Europe's fastest supercomputer, ranking 4th on the November 2025 TOP500 list of the world’s fastest supercomputers. Jupiter is also the most energy-efficient system among the top five.