JUPITER Booster node architecture
JUPITER Booster is operated by Jülich Supercomputing Centre in Germany. This profile covers the documented compute inventory.
Cluster interconnect: InfiniBand NDR200 · 4 rails per node. Topology: Dragonfly+.
GH200 booster
- Node count
- 5884
- CPU
- NVIDIA Grace · 72 cores
- CPUs per node
- 4
- Accelerator
- NVIDIA Hopper (GH200)
- Physical accelerators per node
- 4
- Host / unified memory
- 480 GB LPDDR5X
- Accelerator memory
- 96 GB HBM3 per GPU
- Local accelerator links
- NVLink 4 · all GPU pairs
- CPU-to-accelerator link
- NVLink-C2C
- Storage
- Not verified
Scope and uncertainty
Booster module only. Each Grace CPU is paired with a Hopper GPU; the Cluster module is outside this profile.
Not verified means a detail has not been confirmed in this catalog. Diagrams are schematic; node indices are illustrative, not physical hostnames. Data checked 13 September 2026.
Sources
Browse all cluster architecture pages →
CLUSTER