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Utilizing Predictors for Efficient Thermal Management in Multiprocessor SoCs

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3 Author(s)
Coskun, A.K. ; Dept. of Comput. Sci. & Eng., Univ. of California San Diego, La Jolla, CA, USA ; Rosing, T.S. ; Gross, K.C.

Conventional thermal management techniques are reactive, as they take action after temperature reaches a threshold. Such approaches do not always minimize and balance the temperature, and they control temperature at a noticeable performance cost. This paper investigates how to use predictors for forecasting temperature and workload dynamics, and proposes proactive thermal management techniques for multiprocessor system-on-chips. The predictors we study include autoregressive moving average modeling and lookup tables. We evaluate several reactive and predictive techniques on an UltraSPARC T1 processor and an architecture-level simulator. Proactive methods achieve significantly better thermal profiles and performance in comparison to reactive policies.

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Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:28 ,  Issue: 10 )