Exploiting Program-Level Masking and Error Propagation for Constrained Reliability Optimization

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Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
Since embedded systems design involves stringent design constraints, designing a system for reliability requires optimization under tolerable overhead constraints. This paper presents a novel reliability-driven compilation scheme for software program reliability optimization under tolerable overhead constraints. The authors' scheme exploits program-level error masking and propagation properties to perform reliability-driven prioritization of instructions and selective protection during compilation. To enable this, they develop statistical models for estimating error masking and propagation probabilities. Their scheme provides significant improvement in reliability efficiency (avg. 30%-60%) compared to state-of-the-art program-level protection schemes.
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