The TOP500 list has incorporated the High-Performance Conjugate Gradient (HPCG) benchmark results, which provide an alternative metric for assessing supercomputer performance. This score is meant to complement the HPL measurement to give a fuller understanding of the machine.
Supercomputer Fugaku remains the leader on the HPCG benchmark with 16 PFlop/s.
The DOE system Frontier at ORNL claims the second position with 14.05 HPCG-Pflop/s.
The third position was captured by the upgraded LUMI system with 3.40 HPCG-petaflops.
On the HPL-MxP (formally HPL-AI) benchmark, which measures performance for mixed- precision calculation, Frontier already demonstrated 9.95 Exaflops! The HPL-MxP benchmark seeks to highlight the use of mixed precision computations. Traditional HPC uses 64-bit floating point computations. Today we see hardware with various levels of floating point precisions, 32-bit, 16-bit, and even 8-bit. The HPL-MxP benchmark demonstrates that by using mixed precision during the computation much higher performance is possible (see the Top 5 from the HPL-MxP benchmark), and using mathematical techniques, the same accuracy can be computed with the mixed precision technique when compared with straight 64-bit precision.
|
Rank HPL-MxP |
Site |
Computer |
Cores |
HPL-MxP (Eflop/s) |
TOP500 Rank |
HPL Rmax (Eflop/s) |
Speedup of HPL-MxP over HPL |
|
1 |
DOE/SC/ORNL, USA |
Frontier, HPE Cray EX235a |
8,699,904 |
9.950 |
1 |
1.194 |
8.3 |
|
2 |
EuroHPC/CSC, Finland |
LUMI, HPE Cray EX235a |
2,174,976 |
2.168 |
3 |
0.3091 |
7.0 |
|
3 |
RIKEN, Japan |
Fugaku, Fujitsu A64FX |
7,630,848 |
2.000 |
2 |
0.4420 |
4.5 |
|
4 |
EuroHPC/CINECA, Italy |
Leonardo, Bull Sequana XH2000 |
1,824,768 |
1.842 |
4 |
0.2387 |
7.7 |
|
5 |
DOE/SC/ORNL, USA |
Summit, IBM AC922 POWER9 |
2,414,592 |
1.411 |
5 |
0.1486 |
9.5 |