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Multicore has shown significant performance and power advantages over single cores in commercial systems with a 2-4 cores. Applying a corollary of Moore's Law for multicore, we expect to see 1K multicore chips within a decade. 1K multicore systems introduce significant architectural challenges. One of these is the power efficiency challenge. Today's cores consume 10's of watts. Even at about one watt...
As semiconductor manufacturing technology scales to smaller device sizes, the power consumption of clocked digital ICs begins to increase. Dynamic voltage and frequency scaling (DVFS) is a well-known technique for conserving energy. Recently, it has also been used to control the CPU temperature as part of dynamic thermal management (DTM) techniques. Most works in these areas assume that the optimum...
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