Evaluation of automatic power reduction with OSCAR compiler on Intel Haswell and ARM Cortex-A9 multicores

Tomohiro Hirano*, Hideo Yamamoto, Shuhei Iizuka, Kohei Muto, Takashi Goto, Tamami Wake, Hiroki Mikami, Moriyuki Takamura, Keiji Kimura, Hironori Kasahara

*この研究の対応する著者

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Reducing power dissipation without performance degradation is one of the most important issues for all computing systems, such as supercomputers, cloud servers, desktop PCs, medical systems, smartphones and wearable devices. Exploiting parallelism, careful frequency-and-voltage control and clock-and-power-gating control for multicore/manycore systems are promising to attain performance improvements and reducing power dissipation. However, the hand parallelization and power reduction of application programs are very difficult and time-consuming. The OSCAR automatic parallelization compiler has been developed to overcome these problems by realizing automatic lowpower control in addition to the parallelization. This paper evaluates performance of the low-power control technology of the OSCAR compiler on Intel Haswell and ARM multicore platforms. The evaluations show that the power consumption is reduced to 2/5 using 3 cores on the Intel Haswell multicore for the H.264 decoder and 1/3 for Optical Flow on 3 cores with the power control compared with 3 cores without power control. On the ARM Cortex-A9 using 3 cores, the power control reduces power consumption to 1/2 with the H.264 decoder and 1/3 with Optical Flow. These show that the OSCAR multi-platform compiler allows us to reduce the power consumption on Intel and ARM multicores.

本文言語English
ホスト出版物のタイトルLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
出版社Springer Verlag
ページ239-252
ページ数14
8967
ISBN(印刷版)9783319174723
DOI
出版ステータスPublished - 2015
イベント27th International Workshop on Languages and Compilers for Parallel Computing, LCPC 2014 - Hillsboro, United States
継続期間: 2014 9月 152014 9月 17

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
8967
ISSN(印刷版)03029743
ISSN(電子版)16113349

Other

Other27th International Workshop on Languages and Compilers for Parallel Computing, LCPC 2014
国/地域United States
CityHillsboro
Period14/9/1514/9/17

ASJC Scopus subject areas

  • コンピュータ サイエンス(全般)
  • 理論的コンピュータサイエンス

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