Improving the Performance of Intermittent Computing Using Loop Unrolling 


Vol. 47,  No. 4, pp. 663-670, Apr.  2022
10.7840/kics.2022.47.4.663


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  Abstract

Intermittent computing is a technology that allows software to operate in unstable power supply conditions. In particular, task-based intermittent computing technology and loop continuation method solve data inconsistency and non-termination problems so that the intermittent program can be completed without errors. However, the loop continuation mechanism wastes energy due to the operation of writing loop variables to FRAM. In this paper, we propose an intermittent computing method with loop unrolling to reduce such overheads. By applying Loop unrolling, FRAM write operation can be alleviated by reducing the number of loop iterations, and thus energy usage can be improved. By experiments, the number of reboots of the loop unrolling applied model was 5.44% less than that of the baseline model for the keyword spotting program, and it was shown that the loop urolling method improved the intermittent computing performance.

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  Cite this article

[IEEE Style]

S. Kim and R. Ha, "Improving the Performance of Intermittent Computing Using Loop Unrolling," The Journal of Korean Institute of Communications and Information Sciences, vol. 47, no. 4, pp. 663-670, 2022. DOI: 10.7840/kics.2022.47.4.663.

[ACM Style]

Sihyun Kim and Rhan Ha. 2022. Improving the Performance of Intermittent Computing Using Loop Unrolling. The Journal of Korean Institute of Communications and Information Sciences, 47, 4, (2022), 663-670. DOI: 10.7840/kics.2022.47.4.663.

[KICS Style]

Sihyun Kim and Rhan Ha, "Improving the Performance of Intermittent Computing Using Loop Unrolling," The Journal of Korean Institute of Communications and Information Sciences, vol. 47, no. 4, pp. 663-670, 4. 2022. (https://doi.org/10.7840/kics.2022.47.4.663)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880