The newest of the exascale-class supercomputer to be profiled in the Top500 rankings in the June list is the long-awaited “Jupiter” system at Forschungszentrum Jülich facility in Germany. We finally have a sense of how this hybrid CPU-GPU machine will perform, although some of the details on its configuration are still not nailed down publicly. Jupiter is the first exascale system to be completed under the EuroHPC Joint Undertaking of the European Union, and the fact that it is not using a custo...