On-line thermal aware dynamic voltage scaling for energy optimization with frequency/temperature dependency consideration

• Published in: 2009 46th ACM/IEEE Design Automation Conference pp. 490 - 495
• Main Authors: Bao, Min, Andrei, Alexandru, Eles, Petru, Peng, Zebo
• Format: Conference Proceeding
• Language: English
• Published: New York, NY, USA ACM 26.07.2009; IEEE
• Series: ACM Conferences
• Subjects: Applied computing > Computers in other domains; Applied computing > Physical sciences and engineering > Engineering; Computer systems organization > Embedded and cyber-physical systems; Computer systems organization > Real-time systems; Design optimization; Dynamic voltage scaling; energy; Energy consumption; Energy management; Frequency; Microprocessors; Real time systems; Software and its engineering > Software organization and properties > Contextual software domains > Operating systems > Process management > Scheduling; System-level design; TECHNOLOGY; TEKNIKVETENSKAP; Temperature dependence; temperature dependency; Temperature sensors; voltage/frequency scaling; voltage/frequency scaling; temperature dependency; energy
• ISBN: 9781605584973; 1605584975
• ISSN: 0738-100X
• DOI: 10.1145/1629911.1630039

With new technologies, temperature has become a major issue to be considered at system level design. Without taking temperature aspects into consideration, no approach to energy or/and performance optimization will be sufficiently accurate and efficient. In this paper we propose an on-line temperature aware dynamic voltage and frequency scaling (DVFS) technique which is able to exploit both static and dynamic slack. The approach implies an offline temperature aware optimization step and on-line voltage/frequency settings based on temperature sensor readings. Most importantly, the presented approach is aware of the frequency/temperature dependency, by which important additional energy savings are obtained.