Title :
Making typical silicon matter with Razor
Author :
Austin, Todd ; Blaauw, David ; Mudge, Trevor ; Flautner, Krisztián
Author_Institution :
Michigan Univ., MI, USA
fDate :
3/1/2004 12:00:00 AM
Abstract :
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 the energy 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. 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.
Keywords :
circuit optimisation; error correction; error detection; hardware-software codesign; logic CAD; microprocessor chips; pipeline processing; power consumption; timing; Razor; circuit-timing error correction; circuit-timing error detection; codesign methodology; design optimizations; digital systems; microprocessor pipeline; minimum power consumption; on-chip densities; timing speculation; voltage scaling; Design methodology; Design optimization; Digital systems; Dynamic voltage scaling; Error correction; Microprocessors; Pipelines; Robustness; Silicon; Tuned circuits;
DOI :
10.1109/MC.2004.1274005