Software-assisted hardware reliability

Vijay Janapa Reddi, Meeta S. Gupta, Michael D. Smith, Gu-yeon Wei, David Brooks, Simone Campanoni
2009 Proceedings of the 46th Annual Design Automation Conference on ZZZ - DAC '09  
Power constrained designs are becoming increasingly sensitive to supply voltage noise. We propose a hardware-software collaborative approach to enable aggressive operating margins: a checkpoint-recovery mechanism corrects margin violations, while a run-time software layer reschedules the program's instruction stream to prevent recurring margin crossings at the same program location. The run-time layer removes 60% of these events with minimal overhead, thereby significantly improving overall performance.
doi:10.1145/1629911.1630114 dblp:conf/dac/ReddiGSWBC09 fatcat:2znymncztnaf7nqv4l7m2emu7q