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Synergistic Temperature and Energy Management in GALS Processor Architectures

Summary: Synergistic Temperature and Energy Management
in GALS Processor Architectures
YongKang Zhu
Department of Electrical and Computer Engineering
University of Rochester
Rochester, NY 14627
David H. Albonesi
Computer Systems Laboratory
Cornell University
Ithaca, NY 14853
We propose a synergistic temperature and energy manage-
ment scheme for GALS processors. Localized DVS is applied
in domains that contain hotspots, permitting other criti-
cal domains to run unabated, thereby reducing performance
cost relative to global DVS, and also creating execution slack
in peripheral cooler domains that can be exploited to save
energy. The reduction in energy in turn creates a steeper
temperature gradient between the domains, permitting heat
to flow more easily out of the hotspot domain. This sym-


Source: Albonesi, David H. - Computer Systems Laboratory, Cornell University


Collections: Computer Technologies and Information Sciences