Title
PSP-cache: a low-cost fault-tolerant cache memory architecture
Abstract
Cache memories constitute a large fraction of processor chip area and are highly vulnerable to soft errors caused by energetic particles. To protect these memories, most of the modern processors employ Error Detection Codes (EDCs) or Error Correction Codes (ECCs). EDCs/ECCs impose significant overheads in terms of area and energy; these overheads increase as a function of interleaving EDCs/ECCs to detect/correct multiple errors. This paper proposes a new cache architecture to minimize the area and energy overheads of EDCs/ECCs in set-associative L1-caches. Simulation results for a 4-way set-associative cache show that the proposed architecture reduces both the area and static power overheads of parity code by about 75% and the dynamic energy overhead by about 73% in comparison to conventional cache architecture. These reduction figures are about 68% and about 66%, respectively, for SEC-DED code. The above reductions are achieved without affecting the error coverage.
Year
DOI
Venue
2014
10.7873/DATE.2014.177
Design, Automation and Test in Europe Conference and Exhibition
Keywords
Field
DocType
dynamic energy overhead,low-cost fault-tolerant cache memory,cache memory,processor chip area,overheads increase,conventional cache architecture,energy overhead,4-way set-associative cache show,interleaving edcs,proposed architecture,new cache architecture,generators,error detection and correction,fault tolerance,reliability
Cache invalidation,Cache pollution,Computer science,Cache,Parallel computing,Cache-only memory architecture,Page cache,Cache algorithms,Real-time computing,Cache coloring,Smart Cache
Conference
ISSN
Citations 
PageRank 
1530-1591
2
0.36
References 
Authors
3
2
Name
Order
Citations
PageRank
Hamed Farbeh1479.85
Seyed Ghassem Miremadi253150.32