Campus Units

Electrical and Computer Engineering

Document Type

Conference Proceeding

Conference

International Conference on Dependable Systems and Networks

Publication Version

Accepted Manuscript

Link to Published Version

https://doi.org/10.1109/DSN.2002.1028927

Publication Date

2002

Journal or Book Title

Proceedings International Conference on Dependable Systems and Networks

First Page

416

Last Page

425

DOI

10.1109/DSN.2002.1028927

Conference Title

International Conference on Dependable Systems and Networks

Conference Date

June 23-26, 2002

City

Washington, DC

Abstract

This paper presents an empirical investigation on the soft error sensitivity (SES) of microprocessors, using the picoJava-II as an example, through software simulated fault injections in its RTL model. Soft errors are generated under a realistic fault model during program run-time. The SES of a processor logic block is defined as the probability that a soft error in the block causes the processor to behave erroneously or enter into an incorrect architectural state. The SES is measured at the functional block level. We have found that highly error-sensitive blocks are common for various workloads. At the same time soft errors in many other logic blocks rarely affect the computation integrity. Our results show that a reasonable prediction of the SES is possible by deduction from the processor's microarchitecture. We also demonstrate that the sensitivity-based integrity checking strategy can be an efficient way to improve fault coverage per unit redundancy.

Comments

This is a manuscript of a proceeding published as Kim, Seongwoo, and Arun K. Somani. "Soft error sensitivity characterization for microprocessor dependability enhancement strategy." In Proceedings International Conference on Dependable Systems and Networks, pp. 416-425. IEEE, 2002. DOI: 10.1109/DSN.2002.1028927. Posted with permission.

Rights

© 2002 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Copyright Owner

IEEE

Language

en

File Format

application/pdf

Published Version

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