NDLI: HybDTM: a coordinated hardware-software approach for dynamic thermal management

Content Provider	IEEE Xplore Digital Library
Author	Kumar, A. Li Shang Li-Shiuan Peh Jha, N.K.
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Princeton Univ., NJ (Kumar, A.)
Abstract	With ever-increasing power density and cooling costs in modern high-performance systems, dynamic thermal management (DTM) has emerged as an effective technique for guaranteeing thermal safety at run-time. While past works on DTM have focused on different techniques in isolation, they fail to consider a synergistic mechanism using both hardware and software support and hence lead to a significant execution time overhead. In this paper, we propose HybDTM, a methodology for fine-grained, coordinated thermal management using a hybrid of hardware techniques, such as clock gating, and software techniques, such as thermal-aware process scheduling, synergistically leveraging the advantages of both approaches. We show that while hardware techniques can be used reactively to manage thermal emergencies, proactive use of low-overhead software techniques can rely on application-specific thermal profiles to lower system temperature. Our technique involves a novel regression-based thermal model which provides fast and accurate temperature estimates for run-time thermal characterization of applications running on the system, using hardware performance counters, while considering system-level thermal issues. We evaluate HybDTM on an actual desktop system running a number of SPEC2000 benchmarks, in both uniprocessor and simultaneous multithreading (SMT) environments, and show that it is able to successfully manage the overall temperature with an average execution time overhead of only 9.9% (16.3% maximum) compared to the case without any DTM, as opposed to 20.4% (29.5% maximum) overhead for purely hardware-based DTM
Sponsorship	SiCda EDA Consortium IEEE Circuits & Syst. Soc. IEEE CASS/CANDE CANDE CEDA
Starting Page	548
Ending Page	553
File Size	4374875
Page Count	6
File Format	PDF
ISBN	1595933816
ISSN	0738100X
DOI	10.1109/DAC.2006.229219
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-07-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Association for Computing Machinery, Inc. (ACM)
Subject Keyword	Thermal management Hardware Temperature Power system management Runtime Disaster management Cooling Costs Energy management Safety hybrid hardware-software management Design performance dynamic thermal management thermal model
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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HybDTM: a coordinated hardware-software approach for dynamic thermal management

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