An integration of imprecise computation model and real-time voltage and frequency scaling

Keigo Mizotani, Yusuke Hatori, Yusuke Kumura, Masayoshi Takasu, Hiroyuki Chishiro, Nobuyuki Yamasaki

研究成果: Conference contribution

4 引用 (Scopus)

抜粋

As microprocessor performance grows, high throughput and the power management are becoming more important on embedded real-time systems. Real- Time Voltage and Frequency Scaling (RT-VFS) has been proposed to reduce the power consumption and ensure real-time constraints. An imprecise computation model adds an optional part to Liu and Layland's model to improve the quality of computations. This paper proposes the scheme to integrate an imprecise computation model and RT-VFS that can reduce the power consumption and improve the quality of computations within real-time constraints. Moreover, we implement this scheme on Dependable Responsive Multithreaded Processor (D-RMTP). D-RMTP is a prioritized simultaneous multithreaded processor for embedded real-time systems and D-RMTP system in a package supports RT-VFS. We implement the proposed scheme by use of D-RMTP original features to improve the quality of computations and reduce the energy consumption. Through experimental evaluation, we show that the proposed scheme satisfies both the lower energy consumption and higher performance on real environments. In our evaluation, the proposed scheme achieves a maximum of 135% improvement of the quality of computations per energy consumption.

元の言語English
ホスト出版物のタイトルProceedings of the 30th International Conference on Computers and Their Applications, CATA 2015
編集者Les Miller
出版者The International Society for Computers and Their Applications (ISCA)
ページ63-70
ページ数8
ISBN(電子版)9781880843987
出版物ステータスPublished - 2015 1 1
イベント30th International Conference on Computers and Their Applications, CATA 2015 - Honolulu, United States
継続期間: 2015 3 92015 3 11

出版物シリーズ

名前Proceedings of the 30th International Conference on Computers and Their Applications, CATA 2015

Other

Other30th International Conference on Computers and Their Applications, CATA 2015
United States
Honolulu
期間15/3/915/3/11

ASJC Scopus subject areas

  • Computer Science Applications

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  • これを引用

    Mizotani, K., Hatori, Y., Kumura, Y., Takasu, M., Chishiro, H., & Yamasaki, N. (2015). An integration of imprecise computation model and real-time voltage and frequency scaling. : L. Miller (版), Proceedings of the 30th International Conference on Computers and Their Applications, CATA 2015 (pp. 63-70). (Proceedings of the 30th International Conference on Computers and Their Applications, CATA 2015). The International Society for Computers and Their Applications (ISCA).