Soft Error Vulnerability Aware Process Variation Mitigation

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Provided by: University of Florence
Topic: Hardware
Format: PDF
As transistor process technology approaches the nanometer scale, process variation significantly affects the design and optimization of high performance microprocessors. Prior studies have shown that chip operating frequency and leakage power can have large variations due to fluctuations in transistor gate length and sub-threshold voltage. In this paper, the authors study the impact of process variation on microarchitecture soft error robustness, an increasing reliability design challenge in the billion-transistor chip era. They explore two techniques that can effectively mitigate the effect of design parameter variation while significantly enhancing microarchitecture soft error reliability.
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