Overview

• Following a four‑month trial, the Jupiter Booster module has entered official service at the Jülich Supercomputing Centre in Germany.
• In its most recent Top500 submission the system sustained 793 petaflops, ranking fourth globally, with operators aiming for about 1.4 exaflops (FP64) after resolving early faults.
• For low‑precision AI workloads such as FP8, the team projects more than 70 exaflops to support training of European models.
• The machine is built around roughly 24,000 Nvidia GH200 Grace‑Hopper boards procured via EuroHPC, highlighting reliance on U.S. chip designs despite European integration by ParTec‑Eviden.
• The publicly funded project totals about €500 million including operations, employs warm‑water cooling with planned waste‑heat reuse, and is slated to add a Jupiter Cluster using European Rhea1 processors in 2027.