FirmLeak: A Framework for Efficient and Accurate Runtime Estimation of Leakage Power by Firmware

Joseph, Arun; Haridass, A.; Lefurgy, Charles; Rachamalla, Spandana; Pai, Sreekanth; Chinnakkonda, Diyanesh; Goyal, Vidushi

doi:10.1109/vlsid.2015.84

Cited by 2 publications

(1 citation statement)

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“…For example, our evaluation of this prior approach on a POWER8 based S824 server [9] showed that a temperature greater than 35C could not be achieved, even while keeping the fan speed at a minimum for prolonged periods. The creation of PVT-independent leakage abstracts from pre-silicon design automation tools, and using that in firmware along with runtime information of voltage and temperature for leakage power estimation was proposed in [10]. Though it reduces the efforts involved in post-silicon characterization, and enables finer-grained leakage power estimates, significant investment is required for the creation of such abstracts in pre-silicon and then using that in firmware environments.…”

Section: A Prior Workmentioning

confidence: 99%

FreqLeak: A frequency step based method for efficient leakage power characterization in a system

Joseph

Haridass

Lefurgy

et al. 2015

2015 IEEE/ACM International Symposium on Low Power Electronics and Design (ISLPED)

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Accurate estimation of leakage power at runtime requires post-silicon power measurements across a wide range of temperature and voltage conditions. Testing individual chips, especially at high-temperature corner conditions, is expensive in cost and time. We examine this problem in an industrial context and introduce FreqLeak, a frequency step based method for inexpensive and efficient leakage power characterization in a system. It enables a more thorough characterization than can be accomplished on a wafer prober alone due to time and equipment costs. Experimental evaluation on IBM POWER8 based systems demonstrates the efficiency of the proposed method, within an error of 5%. Further, we discuss the application of FreqLeak in system level power management.978-1-4673-8009-6/15/$31.00

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Section: A Prior Workmentioning

confidence: 99%