Frontier

Hewlett Packard Enterprise Frontier, or OLCF-5, is the world's first and fastest exascale supercomputer, hosted at the Oak Ridge Leadership Computing Facility (OLCF) in Tennessee, United States and first operational in 2022. It is based on the Cray EX and is the successor to Summit (OLCF-4). , Frontier is the world's fastest supercomputer. Frontier achieved an Rmax of 1.102 exaFLOPS, which is 1.102 quintillion operations per second, using AMD CPUs and GPUs. Measured at 62.86 gigaflops/watt, Frontier topped the Green500 list for most efficient supercomputer, until it was dethroned (in efficiency) by Flatiron Institute's Henri supercomputer in November 2022. Design Frontier uses 9,472 AMD Epyc 7453s "Trento" 64 core 2 GHz CPUs (606,208 cores) and 37,888 Radeon Instinct MI250X GPUs (8,335,360 cores). They can perform double precision operations at the same speed as single precision. "Trento" is an optimized 3rd Gen EPYC CPU ("Milan"), which itself is based on the Zen 3 microarchitecture. It occupies 74 rack cabinets. Each cabinet hosts 64 blades, each consisting of 2 nodes.