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Increased variability affects the efficiency of dynamic power and thermal management. Existing on-chip sensor infrastructure can be used to improve the inherent thermal imbalances among cores in a multicore architecture. Experimental analysis based on live measurements on a special test chip shows reduced on-chip heating with no performance loss.
The accuracy and efficiency of dynamic power and thermal management are both affected by the increased levels of on-chip variation, mainly because dynamic thermal management schemes are oblivious to the variation characteristics of the underlying hardware. We propose a technique that utilizes the existing on-chip sensor infrastructure to improve the inherent thermal imbalances among different cores...
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