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6d ago

Europe Inaugurates Jupiter, Its First Exascale Supercomputer

The €500 million machine gives European labs shared capacity to train advanced AI models at scale.

German Chancellor Friedrich Merz and Research, Technology and Space Minister Dorothee Baer attend the ceremonial launch of Jupiter, Nvidia's new high-performance computer, marking the start of operations for the first European supercomputer of the exascale class, at Juelich research centre, in Juelich, Germany, September 5, 2025. REUTERS/Jana Rodenbusch
German Chancellor Friedrich Merz reacts as he attends at the ceremonial launch of Jupiter, Nvidia's new high-performance computer, marking the start of operations for the first European supercomputer of the exascale class, at Juelich research centre, in Juelich, Germany, September 5, 2025. REUTERS/Jana Rodenbusch
German Research, Technology and Space Minister Dorothee Baer attends the ceremonial launch of Jupiter, Nvidia's new high-performance computer, marking the start of operations for the first European supercomputer of the exascale class, at Juelich research centre, in Juelich, Germany, September 5, 2025. REUTERS/Jana Rodenbusch
German Chancellor Friedrich Merz speaks at the ceremonial launch of Jupiter, Nvidia's new high-performance computer, marking the start of operations for the first European supercomputer of the exascale class, at Juelich research centre, in Juelich, Germany, September 5, 2025. REUTERS/Jana Rodenbusch

Overview

  • The system at the Juelich Supercomputing Center in western Germany is being opened to researchers and companies as it is formally inaugurated on Friday.
  • Designed to deliver roughly one quintillion calculations per second, it targets workloads from climate forecasting to brain simulations and energy‑transition research.
  • About 24,000 Nvidia chips power the machine, highlighting reliance on U.S. hardware even as Europe expands its own computing infrastructure.
  • Operators estimate average power demand near 11 megawatts and cite leading energy efficiency, with warm‑water cooling and waste‑heat reuse for nearby buildings.
  • EuroHPC and Germany are splitting roughly €500 million in costs, and the system ranked fourth on the June 2025 TOP500 list as the most energy‑efficient in the top five.