On estimating optimal performance of cpu dynamic thermal management

A Cohen, F Finkelstein, A Mendelson… - IEEE Computer …, 2003 - ieeexplore.ieee.org
A Cohen, F Finkelstein, A Mendelson, R Ronen, D Rudoy
IEEE Computer Architecture Letters, 2003ieeexplore.ieee.org
In this paper we focus on dynamic thermal management (DTM) strategies that use dynamic
voltage scaling (DVS) for power control. We perform a theoretical analysis targeted
atestimating the optimal strategy, and show two facts:(1) whenthere is a gap between the
initial and the limit temperatures, it is best to start with a high (though not necessarily
maximal) frequency and decrease it exponentially until the limit temperatureis reached;(2)
when being close to the limit temperature, the best strategy is to stay there. We use the …
In this paper we focus on dynamic thermal management(DTM) strategies that use dynamic voltage scaling (DVS)for power control. We perform a theoretical analysis targeted atestimating the optimal strategy, and show two facts: (1) whenthere is a gap between the initial and the limit temperatures,it is best to start with a high (though not necessarily maximal)frequency and decrease it exponentially until the limit temperatureis reached; (2) when being close to the limit temperature,the best strategy is to stay there. We use the patterns exhibitedby the optimal strategy in order to analyze some existing DTMtechniques.
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