Bit Impact Factor: Towards making fair vulnerability comparison

Serdar Zafer Can, Gulay Yalcin, Oguz Ergin, Osman Sabri Unsal, Adrian Cristal

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Reliability is becoming a major design concern in contemporary microprocessors since soft error rate is increasing due to technology scaling. Therefore, design time system vulnerability estimation is of paramount importance. Architectural Vulnerability Factor (AVF) is an early vulnerability estimation methodology. However, AVF considers that the value of a bit in a clock cycle is either required for Architecturally Correct Execution (i.e. ACE-bit) or not (i.e. unACE-bit); therefore, AVF cannot distinguish the vulnerability impact level of an ACE-bit. In this study, we present a new dimension which takes into account the vulnerability impact level of a bit. We introduce Bit Impact Factor metric which, we believe, will be helpful for extending AVF evaluation to provide a more accurate vulnerability analysis.
Original languageEnglish
Pages (from-to)598-604
Number of pages7
JournalMicroprocessors and Microsystems
Volume38
Issue number6
DOIs
Publication statusPublished - 1 Aug 2014

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