مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Information Journal Paper

Title

Energy-Budget-Aware Reliability Management in Multi-Core Embedded Systems with Hybrid Energy Source

Pages

  31-43

Abstract

 VLSI technology scaling has resulted in the integration of a larger number of cores in a single chip in successive technology nodes, offering a great potential to realize task-level redundancy for reliability enhancement in safety-critical applications. However, since battery technology no longer advances commensurately with integration density, multi-core platforms may have limited utility in battery-powered embedded systems. In this paper, we propose an energy-budget-aware reliability management (enBudRM) method for multi-core embedded systems featuring hybrid energy source (with renewable and non-renewable energy sources). Our method is composed of two phases. In the offline phase, we only consider battery as the energy source and, according to the available energy-budget and slack time for each execution frame, tasks scheduling and voltage-frequency level are determined such that the tasks timing constraints are met while achieving the given reliability target. To increase the battery lifetime, in the online phase, we exploit released slack time at runtime for further voltage scaling. To compensate for the reliability loss of voltage scaling, we exploit an energy harvester along with the battery to enable executing more task replicas. Our experiments show that our energy budgeting method (the offline phase) compared to other approaches reduces the energy consumption on average by 57% (up to 80%). Also, by using harvester we can achieve up to 45% (on average 35%) battery energy saving, resulting in a higher battery life.

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    APA: Copy

    Safari, Sepideh, ANSARI, MOHSEN, SALEHI, MOHAMMAD, & Ejlali, Alireza. (2018). Energy-Budget-Aware Reliability Management in Multi-Core Embedded Systems with Hybrid Energy Source. THE CSI JOURNAL ON COMPUTER SCIENCE AND ENGINEERING, 15(2), 31-43. SID. https://sid.ir/paper/778737/en

    Vancouver: Copy

    Safari Sepideh, ANSARI MOHSEN, SALEHI MOHAMMAD, Ejlali Alireza. Energy-Budget-Aware Reliability Management in Multi-Core Embedded Systems with Hybrid Energy Source. THE CSI JOURNAL ON COMPUTER SCIENCE AND ENGINEERING[Internet]. 2018;15(2):31-43. Available from: https://sid.ir/paper/778737/en

    IEEE: Copy

    Sepideh Safari, MOHSEN ANSARI, MOHAMMAD SALEHI, and Alireza Ejlali, “Energy-Budget-Aware Reliability Management in Multi-Core Embedded Systems with Hybrid Energy Source,” THE CSI JOURNAL ON COMPUTER SCIENCE AND ENGINEERING, vol. 15, no. 2, pp. 31–43, 2018, [Online]. Available: https://sid.ir/paper/778737/en

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