A Case for Thermal-Aware Floorplanning at the Microarchitectural Level

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Provided by: University of Vigo
Topic: Hardware
Format: PDF
In current day microprocessors, exponentially increasing power densities, leakage, cooling costs, and reliability concerns have resulted in temperature becoming a first class design constraint like performance and power. Hence, virtually every high performance microprocessor uses a combination of an elaborate thermal package and some form of Dynamic Thermal Management (DTM) scheme that adaptively controls its temperature. While DTM schemes exploit the important variable of power density to control temperature, this paper attempts to show that there is a significant peak temperature reduction potential in managing lateral heat spreading through floorplanning.
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