NBTI aware workload balancing in multi-core systems

Jin Sun, Avinash Kodi, Ahmed Louri, Janet M. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Scopus citations

Abstract

As device feature size continues to shrink, reliability becomes a severe issue due to process variation, particle-induced transient errors, and transistor wear-out/stress such as Negative Bias Temperature Instability (NBTI). Unless this problem is addressed, chip multi-processor (CMP) systems face low yields and short mean-time-to-failure (MTTF). This paper proposes a new design framework for multi-core system that includes device wear-out impact. Based on device fractional NBTI model, we propose a new NBTI aware system workload model, and develop new dynamic tile partition (DTP) algorithm to balance workload among active cores while relaxing stressed ones. Experimental results on 64 cores show that by allowing a small number of cores (around 10%)to relax in a short time period (10 second), the proposed methodology improves CMP system yield. We use the percentage of core failure to represent the yield improvement. The new strategy improves the core failure number by 20 %, and extend MTTF by 30% with little degradation in performance (less than 6%).

Original languageEnglish (US)
Title of host publicationProceedings of the 10th International Symposium on Quality Electronic Design, ISQED 2009
Pages833-838
Number of pages6
DOIs
StatePublished - Jul 8 2009
Event10th International Symposium on Quality Electronic Design, ISQED 2009 - San Jose, CA, United States
Duration: Mar 16 2009Mar 18 2009

Publication series

NameProceedings of the 10th International Symposium on Quality Electronic Design, ISQED 2009

Other

Other10th International Symposium on Quality Electronic Design, ISQED 2009
CountryUnited States
CitySan Jose, CA
Period3/16/093/18/09

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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  • Cite this

    Sun, J., Kodi, A., Louri, A., & Wang, J. M. (2009). NBTI aware workload balancing in multi-core systems. In Proceedings of the 10th International Symposium on Quality Electronic Design, ISQED 2009 (pp. 833-838). [4810400] (Proceedings of the 10th International Symposium on Quality Electronic Design, ISQED 2009). https://doi.org/10.1109/ISQED.2009.4810400