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Title: Exploiting Existing Comparators for Fine-Grained Low-Cost Error Detection
Authors: Yalçın, Gülay
Ergin, Oğuz
İşlek, Emrah
Ünsal, Osman Sabri
Cristal, Adrian
Keywords: Reliability
Error Detection
Cam Logic
Issue Date: Oct-2014
Publisher: ASSOC Computing Machinery
Source: Yalcin, G., Ergin, O., Islek, E., Unsal, O. S., & Cristal, A. (2014). Exploiting Existing Comparators for Fine-Grained Low-Cost Error Detection. ACM Transactions on Architecture and Code Optimization (TACO), 11(3), 32.
Abstract: Fault tolerance has become a fundamental concern in computer design, in addition to performance and power. Although several error detection schemes have been proposed to discover a faulty core in the system, these proposals could waste the whole core, including many error-free structures in it after error detection. Moreover, many fault-tolerant designs require additional hardware for data replication or for comparing the replicated data. In this study, we provide a low-cost, fine-grained error detection scheme by exploiting already existing comparators and data replications in the several pipeline stages such as issue queue, rename logic, and translation lookaside buffer. We reduce the vulnerability of the source register tags in IQ by 60%, the vulnerability of instruction TLB by 64%, the vulnerability of data TLB by 45%, and the vulnerability of the register tags of rename logic by 20%.
ISSN: 1544-3566
Appears in Collections:Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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