000142007 001__ 142007
000142007 005__ 20190316234633.0
000142007 0247_ $$2doi$$a10.1109/TCSI.2008.2011589
000142007 02470 $$2ISI$$a000269684700001
000142007 037__ $$aARTICLE
000142007 245__ $$aProcessor Speed Control with Thermal Constraints
000142007 269__ $$a2009
000142007 260__ $$c2009
000142007 336__ $$aJournal Articles
000142007 520__ $$aWe consider the problem of adjusting speeds of multiple computer processors, sharing the same thermal environment, such as a chip or multichip package. We assume that the speed of each processor (and associated variables such as power supply voltage) can be controlled, and we model the dissipated power of a processor as a positive and strictly increasing convex function of the speed. We show that the problem of processor speed control subject to thermal constraints for the environment is a convex optimization problem. We present an efficient infeasible-start primal-dual interior-point method for solving the problem. We also present a distributed method, using dual decomposition. Both of these approaches can be interpreted as nonlinear static control laws, which adjust the processor speeds based on the measured temperatures in the system. We give numerical examples to illustrate performance of the algorithms.
000142007 6531_ $$aConvex optimization,
000142007 6531_ $$adistributed control,
000142007 6531_ $$aprimal-dual interior-point methods,
000142007 6531_ $$atemperature-aware processor control,
000142007 6531_ $$aSystem-on-Chip
000142007 6531_ $$aEmbedded Systems
000142007 700__ $$aMutapcic, Almir
000142007 700__ $$aBoyd, Stephen
000142007 700__ $$0242414$$g171633$$aMurali, Srinivasan
000142007 700__ $$0240268$$g169199$$aAtienza, David
000142007 700__ $$aDe Micheli, Giovanni$$g167918$$0240269
000142007 700__ $$aGupta, Rajesh
000142007 773__ $$j56$$tIEEE Transactions on Circuits and Systems: Part I (TCAS-I)$$k9$$q1994-2008
000142007 8564_ $$uhttps://infoscience.epfl.ch/record/142007/files/Processor_Speed_Control_sept_2009.pdf$$zn/a$$s1976996
000142007 909C0 $$xU11140$$0252283$$pLSI1
000142007 909C0 $$0252050$$pESL$$xU11977
000142007 909CO $$qGLOBAL_SET$$pSTI$$pIC$$particle$$ooai:infoscience.tind.io:142007
000142007 917Z8 $$x176271
000142007 937__ $$aEPFL-ARTICLE-142007
000142007 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000142007 980__ $$aARTICLE