The LUMI system
LUMI is one of the three EuroHPC pre-exascale systems currently being assembled. LUMI is a mostly GPU-accelerated system built by HPE-Cray using AMD Epyc CPUs and AMD Instinct GPUs. It has an architecture similar to the USA exascale system Frontier. It is operated by CSC, the national supercomputer centre of Finland. Leonardo on the other hand is based on Intel CPUs and NVIDIA GPUs. It will be operated by CINECA, the Italian national supercomputer centre.