November 2023

The No. 1 spot on the GREEN500 remains Henri at the Flatiron Institute in New York, USA. The system achieved an energy efficiency rating of 65.40 GFlops/Watt while producing an HPL score of 2.88 PFlop/s. Henri is a Lenovo ThinkSystem SR670 with Intel Xeon Platinum and NVIDIA H100, it has 8,288 total cores, and it ranks No. 293 on the TOP500 list.

The Frontier Test & Development (TDS) system at ORNL in Tennessee, USA, claims the No. 2 spot with an energy efficiency rating of 62.68 GFlops/Watt and an HPL score of 19.2 PFlop/s. The TDS is basically just one rack identical to the actual Frontier system and utilizes 120,832 total cores.

The No. 3 spot was taken by the Adastra system, which is housed at GENCI-CINES in France. The system achieved an energy efficiency rating of 58.02 GFlops/Watt and an impressive HPL score of 46.1 PFlop/s. Adastra has 319,072 total cores.

Additionally, just like on the last list, the actual Frontier system at No. 1 on the TOP500 deserves an honorable mention here for its achievements in energy efficiency. Despite more than doubling the HPL score of the Aurora system at the No. 2 spot on the TOP500, Frontier took the No. 8 spot on the GREEN500 with an energy efficiency of 52.59 GFlops/Watts.

Considering this system was the first machine to achieve exascale, Frontier is proof that power does not need to be sacrificed to achieve an impressive energy efficiency rating.

Finally, being green in supercomputing has truly become a global endeavor. The top 10 spots of the GREEN500 are occupied by 8 different countries: United States (3 times), France, Australia,Sweden, Spain, Finland, Germany, and South Korea.

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.

Green500 Data

Rank TOP500 Rank System Cores Rmax (PFlop/s) Power (kW) Energy Efficiency (GFlops/watts)
1 292 Henri - ThinkSystem SR670 V2, Intel Xeon Platinum 8362 32C 2.8GHz, NVIDIA H100 80GB PCIe, Infiniband HDR, Lenovo
Flatiron Institute
United States
8,288 2.88 44 65.396
2 43 Frontier TDS - HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE
DOE/SC/Oak Ridge National Laboratory
United States
120,832 19.20 309 62.684
3 17 Adastra - HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE
Grand Equipement National de Calcul Intensif - Centre Informatique National de l'Enseignement Suprieur (GENCI-CINES)
France
319,072 46.10 921 58.021
4 25 Setonix – GPU - HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE
Pawsey Supercomputing Centre, Kensington, Western Australia
Australia
181,248 27.16 477 56.983
5 91 Dardel GPU - HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE
KTH - Royal Institute of Technology
Sweden
52,864 8.26 146 56.491
6 8 MareNostrum 5 ACC - BullSequana XH3000, Xeon Platinum 8460Y+ 40C 2.3GHz, NVIDIA H100 64GB, Infiniband NDR200, EVIDEN
EuroHPC/BSC
Spain
680,960 138.20 2,560 53.984
7 5 LUMI - HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE
EuroHPC/CSC
Finland
2,752,704 379.70 7,107 53.428
8 1 Frontier - HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE
DOE/SC/Oak Ridge National Laboratory
United States
8,699,904 1,194.00 22,703 52.592
9 83 Goethe-NHR - Supermicro AS-4124GS-TNR, AMD EPYC 7452 32C 2.35GHz, AMD Instinct MI210 64 GB, Mellanox InfiniBand EDR, MEGWARE / Supermicro
Universitaet Frankfurt
Germany
96,768 9.09 195 46.543
10 495 Olaf - Lenovo ThinkSystem SR675 V3, AMD EPYC 9334 32C 2.7GHz, NVIDIA H100, Infiniband NDR 400, Lenovo
Science Institute
South Korea
3,936 2.03 45 45.117