JUPITER: Europe's First Exascale Supercomputer Ignites AI and Scientific Research

Europe Enters the Exascale Era with JUPITER

On September 5, 2025, Europe officially joined the exascale computing club with the inauguration of JUPITER (Joint Undertaking Pioneer for Innovative and Transformative Exascale Research) at the Jülich Supercomputing Centre in Germany 1

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. This milestone marks a significant leap forward in Europe's computing capabilities, positioning it as a formidable contender in the global artificial intelligence (AI) and supercomputing race.

Technical Specifications and Performance

JUPITER's impressive specifications place it at the forefront of supercomputing technology:

• Performance: Capable of exceeding 1 quintillion (10^18) operations per second, with a benchmark performance of about 800 petaflops 1

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• AI Performance: Expected to offer up to 90 exaflops of AI performance 3

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• Hardware: Powered by 24,000 NVIDIA GH200 Grace Hopper Superchips across approximately 6,000 nodes 4

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• Storage: Nearly 1 exabyte (1,000,000 terabytes) of storage capacity 4

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• Networking: NVIDIA Quantum-2 InfiniBand interconnect, capable of transmitting three times more data than all global data traffic at any given moment 4

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Environmental Considerations

JUPITER sets a new standard for energy efficiency in supercomputing:

• Powered entirely by renewable energy 1

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• Ranked first in energy efficiency among supercomputers 1

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• Power consumption of 17 megawatts at full load 1

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• State-of-the-art cooling and energy reuse systems 5

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Research Applications and Impact

JUPITER's immense computing power will accelerate research across various fields:

1. Climate Science: Enabling high-resolution weather models at kilometer-scale, improving extreme weather event predictions 1

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2. Artificial Intelligence: Supporting the development and training of large language models and generative AI 3

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3. Neuroscience: Advancing drug discovery and brain mapping efforts 3

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4. Quantum Simulation: Enhancing research in quantum computing and related fields 3

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5. Astrophysics: Studying the early Universe and cosmic reionization 1

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6. Biomedical Research: Accelerating drug development and disease control studies 1

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Europe's Position in the Global Supercomputing Landscape

JUPITER's launch significantly bolsters Europe's standing in the global supercomputing arena:

• Ranked as the fourth-fastest supercomputer globally 1

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• Strengthens Europe's digital sovereignty and research capabilities 2

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• Part of a broader European strategy to develop AI gigafactories and advance technological innovation 5

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Future Developments

The JUPITER project is set to expand further:

• A general-purpose Cluster Module, based on SiPearl's Rhea1 processor, is expected to be added in 2026 2

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• This addition will enhance JUPITER's capabilities for workflows that do not benefit from accelerator-based computing 2

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With JUPITER now operational, Europe has taken a significant step forward in the global race for AI and supercomputing supremacy. This powerful machine promises to accelerate scientific discoveries, drive technological innovation, and strengthen Europe's position in the rapidly evolving digital landscape.