Issue No. 03 - March (2004 vol. 37)
Todd Austin , University of Michigan
David Blaauw , University of Michigan
Trevor Mudge , University of Michigan
Krisztián Flautner , ARM Ltd.
<p>Voltage scaling has emerged as a powerful technology for addressing the power challenges that current on-chip densities pose. Razor is a voltage-scaling technology based on dynamic, in-situ detection and correction of circuit-timing errors. Razor permits design optimizations that tune theenergy in a microprocessor pipeline to typical circuit-operational levels. This eliminates the voltage margins that traditional worst-case design methodologies require and lets digital systems run correctly and robustly at the edge of minimum power consumption.</p><p>Occasional heavyweight computations may fail and require additional time and energy for recovery, but the optimized pipeline requires significantly less energy overall than traditional designs.</p>
D. Blaauw, T. Mudge, T. Austin and K. Flautner, "Making Typical Silicon Matter with Razor," in Computer, vol. 37, no. , pp. 57-65, 2004.