Dardel GPU - HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE Cray OS

Site: KTH - Royal Institute of Technology
Manufacturer: HPE
Cores: 56,640
Processor: AMD Optimized 3rd Generation EPYC 64C 2GHz
Interconnect: Slingshot-11
Installation Year: 2022
Performance
Linpack Performance (Rmax) 9.90 PFlop/s
Theoretical Peak (Rpeak) 10.94 PFlop/s
Nmax 1,966,080
HPCG 94.068 TFlop/s
Power Consumption
Power: 167.71 kW
Power Measurement Level: 1
Software
Operating System: HPE Cray OS
Compiler: g++ 7.5.0 and hipcc 5.7.0
Math Library: AMD rocBLAS-5.7.0 and Intel MKL 2016
MPI: HPE Cray MPI
List Rank System Vendor Total Cores Rmax (PFlop/s) Rpeak (PFlop/s) Power (kW)
11/2025 170 HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE Cray OS HPE 56,640 9.90 10.94 167.71
06/2025 147 HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE Cray OS HPE 56,640 9.90 10.94 167.71
11/2024 121 HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11, HPE Cray OS HPE 56,640 9.90 10.94 167.71
06/2024 114 HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11 HPE 52,864 8.26 10.21 146.20
11/2023 91 HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11 HPE 52,864 8.26 10.21 146.20
06/2023 77 HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11 HPE 52,864 8.26 10.21 146.20
11/2022 68 HPE Cray EX235a, AMD Optimized 3rd Generation EPYC 64C 2GHz, AMD Instinct MI250X, Slingshot-11 HPE 52,864 8.26 10.21 146.20