DocumentCode :
1516506
Title :
High-performance fault-tolerant VLSI systems using micro rollback
Author :
Tamir, Yuval ; Tremblay, Marc
Author_Institution :
Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA
Volume :
39
Issue :
4
fYear :
1990
fDate :
4/1/1990 12:00:00 AM
Firstpage :
548
Lastpage :
554
Abstract :
A technique called micro rollback, which allows most of the performance penalty for concurrent error detection to be eliminated, is presented. Detection is performed in parallel with the transmission of information between modules, thus removing the delay for detection from the critical path. Erroneous information may thus reach its destination module several clock cycles before an error indication. Operations performed on this erroneous information are undone using a hardware mechanism for fast rollback of a few cycles. The implementation of a VLSI processor capable of micro rollback is discussed, as well as several critical issues related to its use in a complete system
Keywords :
VLSI; error detection; fault tolerant computing; concurrent error detection; fault-tolerant VLSI systems; hardware mechanism; micro rollback; Aircraft propulsion; Circuits; Clocks; Computer errors; Delay; Error correction; Fault detection; Fault tolerant systems; Pipelines; Very large scale integration;
fLanguage :
English
Journal_Title :
Computers, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9340
Type :
jour
DOI :
10.1109/12.54848
Filename :
54848
Link To Document :
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