A fault secure dictionary machine
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abstract
A fault-secure dictionary machine is presented. The symmetry of the binary tree architecture for a dictionary machine is used to obtain fault-secureness with little overhead. The proposed design utilizes only one extra processor and, with some other modifications to the structure of the processors, can detect a single feature of a processor or a link. The proposed design keeps two copies of each record and whenever a record is extracted from the machine the two copies are compared to detect if any fault has occurred. The low overhead is a result of observing the fact that at any given time all the processors of the machine need not be active and these potentially-idle processors are used to do redundant processing to enable detection of single faults.
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1987 IEEE Third International Conference on Data Engineering