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- W3007431651 abstract "Increasing failures from transient faults necessitates the cost-efficient protection mechanism that will be always activated. Thus, we propose a novel prediction-based transient fault protection strategy as a low-cost software-only technique. Instead of re-executing expensive computations for validation, an output prediction is used to cheaply determine an approximate value for a sequence of computation. When actual computation and prediction agree within a predefined acceptable range, the computation is assumed fault-free, and expensive re-computation can be skipped. With our approach, a significant reduction in dynamic instruction counts is possible. Missed faults may occur, but their occurrences can be explicitly kept to a small amount with a proper acceptable range. For evaluation, we build an automatic compilation system, called RSkip, that transforms a program into a resilient executable with the prediction-based protection scheme. Prior instruction replication work shows 2.33x execution time compared to the unreliable execution over nine compute-intensive benchmarks. With a control for the loss in protection rate, RSkip can reduce the protection overhead to 1.27x by skipping redundant computation in our target loops at a rate of 81.10" @default.
- W3007431651 created "2020-03-06" @default.
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- W3007431651 date "2020-02-22" @default.
- W3007431651 modified "2023-10-16" @default.
- W3007431651 title "Low-cost prediction-based fault protection strategy" @default.
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- W3007431651 doi "https://doi.org/10.1145/3368826.3377920" @default.
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