Germany has officially entered the exascale era with the inauguration of the JUPITER supercomputer at the Jülich Research Centre, attended by Chancellor Friedrich Merz. The new system represents a decisive step for Europe’s digital sovereignty and for strengthening cutting-edge research in fields such as artificial intelligence, climate simulations and biotechnology.
What is an exascale supercomputer, and why does JUPITER matter?
An exascale system can perform at least 1018 operations per second. JUPITER is the first in Europe to exceed this threshold, placing Germany alongside the United States and China in the select group of global leaders in supercomputing.
For additional information, see Blue Lion: Germany’s revolutionary supercomputer, an article that explores an aspect directly related to this topic.
JUPITER’s technical specifications and architecture
- Location: Jülich Supercomputing Centre, Germany
- Modular architecture: Booster (AI & training) + Cluster (traditional HPC processes)
- Accelerators: more than 24,000 NVIDIA GH200 (Grace Hopper) superchips
- Booster nodes: ~6,000 nodes across 125 racks
- Cluster nodes: ~1,300 with European SiPearl Rhea processors
- Performance: hundreds of petaflops in HPC, up to tens of exaFLOPs for AI
- Network: NVIDIA Quantum-2 InfiniBand, with thousands of high-speed interconnections
- Power consumption: ~17 MW, with warm-water cooling and energy recovery
Who built the JUPITER supercomputer?
The project was delivered through EuroHPC, with the participation of NVIDIA, Eviden/Atos (BullSequana XH3000), ParTec and other European partners. The installation involved more than 50 modular containers, thousands of high-performance cables and specialised cooling systems.
Impact on Europe and the scientific community
JUPITER will accelerate research in climate science, advanced physics, biomedicine and artificial intelligence. It also gives Europe the ability to train large-scale AI models, reducing dependence on computing centres in the United States and Asia.
Challenges and criticism
- High energy consumption: approximately 17 MW, equivalent to the needs of a small town
- Fair access: the need for clear rules for universities, institutes and companies
- Operating costs: maintaining infrastructure at exascale requires significant resources
The inauguration of the JUPITER supercomputer in Germany marks a historic moment for Europe. With its exascale power, the system paves the way for groundbreaking research, supports AI development and strengthens Europe’s ambitions in the global competition for digital sovereignty.
