Architecture-level soft error analysis: Examining the limits of common assumptions

Xiaodong Li, Sarita V. Adve, Pradip Bose, Jude A. Rivers

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

Abstract

This paper concerns the validity of a widely used method for estimating the architecture-level mean time to failure (MTTF) due to soft errors. The method first calculates the failure rate for an architecture-level component as the product of its raw error rate and an architecture vulnerability factor (AVF). Next, the method calculates the system failure rate as the sum of the failure rates (SOFR) of all components, and the system MTTF as the reciprocal of this failure rate. Both steps make significant assumptions. We investigate the validity of the AVF+SOFR method across a large design space, using both mathematical and experimental techniques with real program traces from SPEC 2000 benchmarks and synthesized traces to simulate longer real-world workloads. We show that AVF+SOFR is valid for most of the realistic cases under current raw error rates. However, for some realistic combinations of large systems, long-running workloads with large phases, and/or large raw error rates, the MTTF calculated using AVF+SOFR shows significantdiscrepancies from that using first principles. We also show that SoftArch, a previously proposed alternative method that does not make the AVF+SOFR assumptions, does not exhibit the above discrepancies.

Original languageEnglish (US)
Title of host publicationProceedings - 37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2007
Pages266-275
Number of pages10
DOIs
StatePublished - Nov 16 2007
Event37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2007 - Edinburgh, United Kingdom
Duration: Jun 25 2007Jun 28 2007

Publication series

NameProceedings of the International Conference on Dependable Systems and Networks

Other

Other37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2007
CountryUnited Kingdom
CityEdinburgh
Period6/25/076/28/07

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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    Li, X., Adve, S. V., Bose, P., & Rivers, J. A. (2007). Architecture-level soft error analysis: Examining the limits of common assumptions. In Proceedings - 37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2007 (pp. 266-275). [4272978] (Proceedings of the International Conference on Dependable Systems and Networks). https://doi.org/10.1109/DSN.2007.15