Analysis of Software-Based Recovery Schemes for SMT Processors

Provided by: University of Göttingen
Topic: Hardware
Format: PDF
Today's microprocessors are prone to transient hardware faults caused by e.g. ionizing particles. The usual method to detect and correct such faults is to use duplex systems in software. Fault detection and correction can be accelerated by taking advantage of logical processors available since the introduction of commercial SMT systems, e.g. by performing a simultaneous retry and roll-forward on different logical processors. The authors derive four different recovery schemes (probabilistic, deterministic

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