TY - GEN
T1 - Evaluation of SPEC CPU and SPEC OMP on the A64FX
AU - Kodama, Yuetsu
AU - Kondo, Masaaki
AU - Sato, Mitsuhisa
N1 - Funding Information:
This work is partially funded by MEXT’s program for the Development and Improvement for the Next Generation Ultra High-Speed Computer System, under its Subsidies for Operating the Specific Advanced Large Research Facilities.
Publisher Copyright:
©2021 IEEE.
PY - 2021
Y1 - 2021
N2 - We evaluated the A64FX processor used in the supercomputer Fugaku using the SPEC CPU and SPEC OMP benchmark suites. As a result, we found the performance of the A64FX processor, which had 48 cores, was lower than that of the Xeon with dual sockets of 24 cores each in SPEC CPU int and fp. In SPEC OMP, due to the effect of the Xeon's Hyperthread, the A64FX performance was lower than the performance of the Xeon with single socket of 28 cores. But in several benchmarks in SPEC CPU fp and SPEC OMP, the A64FX performance was higher due to its high memory bandwidth. In addition, by comparing the performance and power using the power control mechanism of the A64FX, it was confirmed that power can be reduced without affecting the performance when not using all cores.
AB - We evaluated the A64FX processor used in the supercomputer Fugaku using the SPEC CPU and SPEC OMP benchmark suites. As a result, we found the performance of the A64FX processor, which had 48 cores, was lower than that of the Xeon with dual sockets of 24 cores each in SPEC CPU int and fp. In SPEC OMP, due to the effect of the Xeon's Hyperthread, the A64FX performance was lower than the performance of the Xeon with single socket of 28 cores. But in several benchmarks in SPEC CPU fp and SPEC OMP, the A64FX performance was higher due to its high memory bandwidth. In addition, by comparing the performance and power using the power control mechanism of the A64FX, it was confirmed that power can be reduced without affecting the performance when not using all cores.
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U2 - 10.1109/Cluster48925.2021.00088
DO - 10.1109/Cluster48925.2021.00088
M3 - Conference contribution
AN - SCOPUS:85126069367
T3 - Proceedings - IEEE International Conference on Cluster Computing, ICCC
SP - 553
EP - 561
BT - Proceedings - 2021 IEEE International Conference on Cluster Computing, Cluster 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Conference on Cluster Computing, Cluster 2021
Y2 - 7 September 2021 through 10 September 2021
ER -