Improving Power, Performance and Resource Efficiency for Future Computing
Systems
Thursday, April 10, 2014 - 8:45am - 10:00am
KEC 1007
Lizhong Chen
University of Southern California
Abstract:
Computing systems in the next decade will continue to expand the landscape from
pervasive wearable and embedded devices to exascale high performance computing
systems and data centers. However, significant challenges must be addressed in
order to meet the requirements and expectations of future computing systems. In
this talk, I will first discuss several important technology and application
trends and briefly summarize our past research in improving power, performance
and resource efficiency for various system components. I will then present two
recent works on enabling energy-proportional adaptive on-chip networks, which
serve as the backbone to connect general-purpose processing cores, IP blocks
and various hardware accelerators in MPSoCs and chip multiprocessors. The two
novel designs, namely Node-Router Decoupling (NoRD) and Minimal Performance
Penalty Power-gating (MP3), allow on-chip routers to be powered on/off
dynamically based on application characteristics while m!
aintaining network connectivity and incurring negligible performance overhead.
These works greatly extend the achievable operating range of many-core
processors (e.g., minimal and maximum design points), thus facilitating their
use not only in high performance computing but also in embedded and mobile
devices. Finally, I will conclude the talk by mentioning several promising
research lines that are worthy of pursuit in the near future.
Biography:
Lizhong Chen is a Ph.D. candidate in the Computer Engineering Division of the Ming Hsieh Department of Electrical Engineering at the University of Southern California. His research focuses on energy-efficient many-core processors, hardware/software co-optimization for MPSoCs in embedded systems, interconnection networks for HPCs and data centers, and architectural support for parallel programming models. He received his M.S. in Electrical Engineering from USC in 2011 and his B.S. in Electrical Engineering from Zhejiang University, China in 2009. Lizhong is the recipient of the Chu Kochen Award (the highest honor in Zhejiang University), the National Scholarship from the Ministry of Education of China, the Cross-disciplinary Scholar in Science and Technology from UCLA, the Chinese Government Award for Outstanding Self-financed Students Abroad, and is currently nominated for the USC Ph.D. Achievement Award.
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