(Oak Ridge National Laboratory: Oak Ridge, TN) -- Computational users at the Oak Ridge Leadership Computing Facility (OLCF) are running scientific codes on Frontier’s architecture in the form of a powerful test system at the OLCF called Crusher.

Frontier, an HPE Cray EX supercomputer capable of 1018 calculations per second—or 10 with 18 zeroes—was installed in late 2021 and is undergoing integration and testing. Frontier is on track to be the nation’s first exascale supercomputer this year. Early science users are accessing Frontier through the Crusher test system; the Frontier system will enter full user operations on Jan. 1, 2023, with the INCITE program users. Crusher is a 1.5-cabinet iteration of the massive system featuring 192 nodes connected by the HPE Slingshot Interconnect. Each node contains one optimized third-gen AMD EPYC CPU and four AMD Instinct MI250x accelerators.

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