Machine Learning Clustering Techniques for Selective Mitigation of Critical Design Features

• URL: http://arxiv.org/abs/2008.13664v2
• Date: Fri, 2 Apr 2021 15:48:17 GMT
• Title: Machine Learning Clustering Techniques for Selective Mitigation of Critical Design Features
• Authors: Thomas Lange, Aneesh Balakrishnan, Maximilien Glorieux, Dan Alexandrescu, Luca Sterpone
• Abstract summary: This paper presents a new methodology which uses machine learning clustering techniques to group flip-flops with similar expected contributions to the overall functional failure rate. Fault simulation campaigns can then be executed on a per-group basis, significantly reducing the time and cost of the evaluation.
• Score: 0.16311150636417257
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Selective mitigation or selective hardening is an effective technique to obtain a good trade-off between the improvements in the overall reliability of a circuit and the hardware overhead induced by the hardening techniques. Selective mitigation relies on preferentially protecting circuit instances according to their susceptibility and criticality. However, ranking circuit parts in terms of vulnerability usually requires computationally intensive fault-injection simulation campaigns. This paper presents a new methodology which uses machine learning clustering techniques to group flip-flops with similar expected contributions to the overall functional failure rate, based on the analysis of a compact set of features combining attributes from static elements and dynamic elements. Fault simulation campaigns can then be executed on a per-group basis, significantly reducing the time and cost of the evaluation. The effectiveness of grouping similar sensitive flip-flops by machine learning clustering algorithms is evaluated on a practical example.Different clustering algorithms are applied and the results are compared to an ideal selective mitigation obtained by exhaustive fault-injection simulation.

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