ROAD: Improving reliability of multi-core system via asymmetric aging

Yu Guang Chen, Ing Chao Lin, Jian Ting Ke

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)


Negative-Bias Temperature Instability (NBTI), which may lead to performance degradation or even timing failure, has become one of the most drastic challenges in modern multi-core systems. To tolerate NBTI and extend the lifetime of the system, previous researchers proposed maintaining all cores in the multi-core system under similar aging conditions (symmetric aging) through various task assignment algorithms and/or dynamic voltage frequency scaling. Although the concept of symmetric aging provides efficient approaches to tolerating NBTI, it may reduce the lifetime of a multi-core system. If a critical task (i.e., a task with tight timing constraints) arrives when the system has already operated for years, it is possible that none of the equivalently aged cores will be able to complete the critical task within its timing constraints. This unavoidable timing failure then will shorten the lifetime of the system. In contrast, if a few cores are kept robust, these cores can be used to execute the critical task even if all the other cores are aged (asymmetric aging), which avoids timing failure and extends the system lifetime. Based on the above observation, this paper proposes a novel reliability improvement framework that consists of task graph Retiming, task Ordering, task Assignment under asymmetric aging, and Dynamic voltage selection (ROAD) for multi-core systems. With our framework, asymmetric aging can extend the system lifetime through successfully executing critical tasks at the later life stages of the system. The experimental results show that our approach can significantly increase the system lifetime with no or insignificant energy overhead.

主出版物標題2019 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2019 - Digest of Technical Papers
發行者Institute of Electrical and Electronics Engineers Inc.
出版狀態Published - 2019 11月
事件38th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2019 - Westin Westminster, United States
持續時間: 2019 11月 42019 11月 7


名字IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD


Conference38th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2019
國家/地區United States
城市Westin Westminster

All Science Journal Classification (ASJC) codes

  • 軟體
  • 電腦科學應用
  • 電腦繪圖與電腦輔助設計


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