SiPearl delivers first Rhea1 CPUs to Bull for JUPITER exascale supercomputer
Type: Supply Agreement · Technology: Data Center · Country: Germany · Announced: 2026-09-22
SiPearl has delivered the first samples of its Rhea1 CPU to Bull for integration into JUPITER, Europe's first exascale supercomputer, marking a milestone in European technological sovereignty. The Rhea1 processor, featuring 80 Arm Neoverse V1 cores and 4 stacks of HBM, is being integrated onto Bull's BullSequana XH3000 platform at the Jülich Supercomputing Centre in Germany. This supply agreement, constituting SiPearl's first material revenue, will equip the CPU blade of JUPITER, complementing the GPU partition and enabling complex, data-intensive workloads. The project, procured by the EuroHPC Joint Undertaking, aims to accelerate breakthroughs in climate science, sustainable energy, and AI research across Europe.
Analysis
SiPearl delivered the first samples of its Rhea1 CPU to Bull for integration into the JUPITER exascale supercomputer in Germany, announced on 2026-09-22. Bull is a French high‑performance computing and AI technology company that specializes in exascale computing and operates Europe’s largest HPC manufacturing facility. Forschungszentrum Jülich is the developer of the JUPITER project at the Jülich Supercomputing Centre in Germany. The supply agreement, procured by the EuroHPC Joint Undertaking, constitutes SiPearl’s first material revenue.
Key points
- SiPearl delivered first Rhea1 CPU samples to Bull
- Rhea1 processor includes 80 Arm Neoverse V1 cores and 4 stacks of HBM
- Integration onto BullSequana XH3000 platform at Jülich Supercomputing Centre, Germany
- Agreement announced on 2026-09-22
- First material revenue for SiPearl
Counterparties
- Forschungszentrum Jülich (Developer)
- EuroHPC Joint Undertaking (Developer)
- SiPearl (Supplier)
- Bull (Buyer)
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