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Link to original content: http://www.top500.org/lists/top500/2023/06/
The 61st edition of the TOP500 shows the Frontier system to remain the only true exascale machine with an HPL score of 1.194 Exaflop/s.
The Frontier system at the Oak Ridge National Laboratory, Tennessee, USA remains the No. 1 system on the TOP500 and is still the only system reported with an HPL performance exceeding one Exaflop/s. Frontier brought the pole position back to the USA one year ago on the June 2022 listing with an HPL score of 1.194 Exaflop/s.
Frontier is based on the latest HPE Cray EX235a architecture and equipped with AMD EPYC 64C 2GHz processors. The system has 8,699,904 total cores, a power efficiency rating of 52.59 gigaflops/watt, and relies on Slingshot-11 interconnect for data transfer.
The top position was previously held from June 2020 until November 2021 by the Fugaku system at the RIKEN Center for Computational Science (R-CCS) in Kobe, Japan. With its HPL benchmark score of 442 Pflop/s, Fugaku is now listed as No. 2.
The LUMI system at EuroHPC/CSC in Finland entered the list in June 2022 at No. 3. It is listed as No. 3 after an upgrade of the system last november and has an HPL score of 309.1 Pflop/s. With this it remains the largest system in Europe.
The Leonardo system at EuroHPC/CINECA in Italy was first listed six month ago at No. 4. It was upgraded as well and remains No. 4 with an improved HPL score of 239 Pflop/s. It is based on the Atos BullSequana XH2000 architecture.
Rmax and Rpeak values are in PFlop/s. For more details about other fields, check the TOP500 description.
Rpeak values are calculated using the advertised clock rate of the CPU. For the efficiency of the systems you should take into account the Turbo CPU clock rate where it applies.