DocumentCode :
3240397
Title :
Thermal Balancing Policy for Streaming Computing on Multiprocessor Architectures
Author :
Mulas, Fabrizio ; Pittau, Michele ; Buttu, Marco ; Carta, Salvatore ; Acquaviva, Andrea ; Benini, Luca ; Atienza, David ; De Micheli, Giovanni
Author_Institution :
DMI, Univ. of Cagliari, Cagliari
fYear :
2008
fDate :
10-14 March 2008
Firstpage :
734
Lastpage :
739
Abstract :
As feature sizes decrease, power dissipation and heat generation density exponentially increase. Thus, temperature gradients in multiprocessor systems on chip (MPSoCs) can seriously impact system performance and reliability. Thermal balancing policies based on task migration have been proposed to modulate power distribution between processing cores to achieve temperature flattening. However, in the context of MPSoC for multimedia streaming computing, where timeliness is critical, the impact of migration on quality of service must be carefully analyzed. In this paper we present the design and implementation of a lightweight thermal balancing policy that reduces on-chip temperature gradients via task migration. This policy exploits run-time temperature and load information to balance the chip temperature. Moreover, we assess the effectiveness of the proposed policy for streaming computing architectures using a cycle-accurate thermal-aware emulation infrastructure. Our results using a real-life software defined radio multitask benchmark show that our policy achieves thermal balancing while keeping migration costs bounded.
Keywords :
electronic engineering computing; multiprocessing systems; system-on-chip; thermal management (packaging); MPSoC; multiprocessor architectures; multiprocessor systems on chip; multitask benchmark; on-chip temperature gradients; software defined radio; streaming computing; task migration; thermal balancing policy; thermal-aware emulation infrastructure; Computer architecture; Multiprocessing systems; Power dissipation; Power distribution; Power generation; Power system reliability; Streaming media; System performance; System-on-a-chip; Temperature;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design, Automation and Test in Europe, 2008. DATE '08
Conference_Location :
Munich
Print_ISBN :
978-3-9810801-3-1
Electronic_ISBN :
978-3-9810801-4-8
Type :
conf
DOI :
10.1109/DATE.2008.4484766
Filename :
4484766
Link To Document :
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