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A lightweight progress maximization scheduler for non-volatile processor under unstable energy harvesting

Publication ,  Conference
Pan, C; Xie, M; Liu, Y; Wang, Y; Xue, CJ; Chen, Y; Hu, J
Published in: ACM SIGPLAN Notices
June 21, 2017

Energy harvesting techniques become increasingly popular as power supplies for embedded systems. However, the harvested energy is intrinsically unstable. Thus, the program execution may be interrupted frequently. Although the development of non-volatile processors (NVP) can save and restore execution states, both hardware and software challenges exist for energy harvesting powered embedded systems. On the hardware side, existing power detector only signals the "poor" quality of the harvested power based on a preset threshold voltage. The inappropriate setting of this threshold will make the NVP based embedded system suffer from either unnecessary checkpointing or checkpointing failures. On the software side, not all tasks can be checkpointed. Once the power is off, these tasks will have to restart from the beginning. In this paper, a task scheduler is proposed to maximize task progress by prioritizing tasks which cannot be checkpointed when power is weak so that they can finish before the power outage. To assist task scheduling, three additional modules including voltage monitor, checkpointing handler, and routine handler, are proposed. Experimental results show increased overall task progress and reduced energy consumption.

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Published In

ACM SIGPLAN Notices

DOI

ISSN

1523-2867

Publication Date

June 21, 2017

Volume

52

Issue

5

Start / End Page

101 / 110

Related Subject Headings

  • Software Engineering
 

Citation

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Pan, C., Xie, M., Liu, Y., Wang, Y., Xue, C. J., Chen, Y., & Hu, J. (2017). A lightweight progress maximization scheduler for non-volatile processor under unstable energy harvesting. In ACM SIGPLAN Notices (Vol. 52, pp. 101–110). https://doi.org/10.1145/3078633.3081038
Pan, C., M. Xie, Y. Liu, Y. Wang, C. J. Xue, Y. Chen, and J. Hu. “A lightweight progress maximization scheduler for non-volatile processor under unstable energy harvesting.” In ACM SIGPLAN Notices, 52:101–10, 2017. https://doi.org/10.1145/3078633.3081038.
Pan C, Xie M, Liu Y, Wang Y, Xue CJ, Chen Y, et al. A lightweight progress maximization scheduler for non-volatile processor under unstable energy harvesting. In: ACM SIGPLAN Notices. 2017. p. 101–10.
Pan, C., et al. “A lightweight progress maximization scheduler for non-volatile processor under unstable energy harvesting.” ACM SIGPLAN Notices, vol. 52, no. 5, 2017, pp. 101–10. Scopus, doi:10.1145/3078633.3081038.
Pan C, Xie M, Liu Y, Wang Y, Xue CJ, Chen Y, Hu J. A lightweight progress maximization scheduler for non-volatile processor under unstable energy harvesting. ACM SIGPLAN Notices. 2017. p. 101–110.

Published In

ACM SIGPLAN Notices

DOI

ISSN

1523-2867

Publication Date

June 21, 2017

Volume

52

Issue

5

Start / End Page

101 / 110

Related Subject Headings

  • Software Engineering