Title :
Architecture level thermal modeling for multi-core systems using subspace system method
Author :
Eguia, Thorn Jefferson A ; Shen, Riujing ; Tan, Sheldon X D ; Pacheco, Eduardo H. ; Tirumala, Murti
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Riverside, CA, USA
Abstract :
This paper proposes a new architecture-level thermal modeling method to address the emerging thermal related analysis and optimization problem for high-performance multi-core microprocessor design. The new approach, called Thermsid, builds the thermal behavioral models from the measured or simulated thermal and power information at the architecture level. Thermsid builds the thermal models by first generating a Hankel matrix of Markov parameters, from which state matrices are obtained through minimum square optimization. Compared to existing behavioral thermal modeling algorithms, the proposed method is much more general as it does not require step temperature responses, leading to greater flexibility during the modeling process. Experimental results on a real quad-core microprocessor show that Thermsid provides accurate thermal behavioral models comparable existing approaches.
Keywords :
Hankel matrices; circuit optimisation; integrated circuit modelling; microprocessor chips; thermal analysis; Hankel matrix; Markov parameters; Thermsid; architecture level thermal modeling; high-performance multi-core microprocessor design; minimum square optimization; quad-core microprocessor; state matrices; subspace system method; thermal analysis; Design optimization; Microprocessors; Multicore processing; Packaging; Power measurement; Power system modeling; Rapid thermal processing; System identification; Temperature measurement; Thermal conductivity; Thermal analysis; architecture thermal modeling; multicore processor;
Conference_Titel :
ASIC, 2009. ASICON '09. IEEE 8th International Conference on
Conference_Location :
Changsha, Hunan
Print_ISBN :
978-1-4244-3868-6
Electronic_ISBN :
978-1-4244-3870-9
DOI :
10.1109/ASICON.2009.5351305