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There are not yet practical and accurate ways to directly measure core power in a microprocessor. This limits the granularity of measurement and control for computer power management. We overcome this limitation by presenting an accurate runtime per-core power proxy which closely estimates true core power. This enables new fine-grained microprocessor power management techniques at the core level....
A large portion of the power consumption of data centers can be attributed to cooling. In dynamic thermal management mechanisms for data centers and servers, thermal setpoints are typically chosen statically and conservatively, which leaves significant room for improvement in the form of improved energy efficiency. In this paper, we propose two hierarchical thermal-aware power optimization techniques...
Managing temperature has become an important concern in modern processor and other microelectronic chips. The problem has become especially severe as the ability to reduce supply voltage has slowed. As a result, the number of devices per unit area is sca ing up faster than the power density is scaling down. This requires more expensive cooling solutions to keep the chip and its local hotspots cool,...
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