Europe's First Exascale Supercomputer, Jupiter: An Nvidia-Powered Beast with Arm Aspirations

The Forschungszentrum Jülich's long-awaited exascale supercomputer, Jupiter, has finally debuted on the Top500 list. This hybrid CPU-GPU machine, built by Eviden and ParTec, boasts a GPU booster module that ranked fourth in the June HPL benchmark. While heavily reliant on Nvidia GPUs and interconnect technology, Jupiter incorporates a Universal Cluster module based on SiPearl's Rhea1 Arm CPU, signifying a move towards European HPC independence. However, reaching the full exascale FP64 performance goal requires further expansion of GPU nodes. The €500 million project highlights the substantial investment in high-performance computing, with a significant portion allocated to hardware and software.