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Practical Dynamic Thermal Management of multi-core microprocessors

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2 Author(s)
Wojciechowski, B. ; Inst. of Comput. Eng., Wroclaw Univ. of Technol., Wrocław, Poland ; Bawiec, M.A.

Here we present an implementation of thermally-aware DVFS governor in a form of Linux 3.2 module. Our thermal governor operates by reading digital thermal sensors placed in CPU cores and pro-actively adjusting operating frequency of individual cores to maintain temperatures below given threshold. We evaluate our method using state-of-the-art parallel benchmarks from PARSEC suite. Apart from evaluation of our thermally-aware DVFS governor, we present insights into operation of a modern high-performance CPU with 6 cores and 2 hardware threads per core.

Published in:

Thermal Investigations of ICs and Systems (THERMINIC), 2012 18th International Workshop on

Date of Conference:

25-27 Sept. 2012