PRIMEHPC FX1000, A64FX 48C 2.2GHz, Tofu interconnect D

Site: Japan Meteorological Agency
Manufacturer: Fujitsu
Cores: 221,184
Processor: A64FX 48C 2.2GHz
Interconnect: Tofu interconnect D
Installation Year: 2022
Performance
Linpack Performance (Rmax) 13.37 PFlop/s
Theoretical Peak (Rpeak) 15.57 PFlop/s
Nmax 3,809,280
HPCG 461.312 TFlop/s
Power Consumption
Power: 904.72 kW
Power Measurement Level: 2
Software
Operating System: Red Hat Enterprise Linux
Compiler: FUJITSU Software Technical Computing Suite V4.0
Math Library: FUJITSU Software Technical Computing Suite V4.0
MPI: FUJITSU Software Technical Computing Suite V4.0
List Rank System Vendor Total Cores Rmax (PFlop/s) Rpeak (PFlop/s) Power (kW)
11/2025 132 PRIMEHPC FX1000, A64FX 48C 2.2GHz, Tofu interconnect D Fujitsu 221,184 13.37 15.57 904.72
06/2025 115 PRIMEHPC FX1000, A64FX 48C 2.2GHz, Tofu interconnect D Fujitsu 221,184 13.37 15.57 904.72
11/2024 95 PRIMEHPC FX1000, A64FX 48C 2.2GHz, Tofu interconnect D Fujitsu 221,184 13.37 15.57 904.72
06/2024 77 PRIMEHPC FX1000, A64FX 48C 2.2GHz, Tofu interconnect D Fujitsu 221,184 13.37 15.57 904.72
11/2023 61 PRIMEHPC FX1000, A64FX 48C 2.2GHz, Tofu interconnect D Fujitsu 221,184 13.37 15.57 904.72
06/2023 50 PRIMEHPC FX1000, A64FX 48C 2.2GHz, Tofu interconnect D Fujitsu 221,184 13.37 15.57 904.72