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CCS Seminar
Friday - March 4, 2011
12:00 noon
Physics Research Building - Room 595
3 Cummington Street
Professor Ayse Kivilcim Coskun
Electrical & Computer Engineering
Boston University

"Optimizing the Software Stack for Energy-Efficient Computing"

Operators of large-scale datacenters and high performance computing systems increase cost-efficiency and throughput by clustering workload on their systems. In tandem, there is a strong incentive to lower operational costs by replacing HVAC systems with less expensive cooling infrastructures. However, utilizing cheaper cooling is likely to result in higher temperatures on systems, degrading system reliability. Thermal problems accelerate with the integration of more cores on a single chip and the use of novel integration and packaging techniques such as 3D stacking. To reduce the operational costs while keeping reliability at desired levels, we need new techniques for improving energy efficiency and thermal profiles, both at the chip level and at the larger scale.    

This talk focuses on the challenges and the techniques we developed to cope with increasing performance demands, high temperatures, and high energy consumption for multiprocessor systems. The key message is that software optimization at various levels, such as workload scheduling, is an effective tool for substantially improving thermal profiles while delivering the desired performance and lowering system-level energy costs.

Ayse K. Coskun is currently an assistant professor in the Electrical and Computer Engineering Department at Boston University. She received her MS and PhD degrees in Computer Science and Engineering from University of California, San Diego. Ayse’s research interests are energy-efficient computing, multicore systems, 3D stack architectures, computer architecture, embedded systems and software. Ayse has worked at Sun Microsystems (now Oracle), San Diego with the Systems Dynamics Characterization and Control team for 3 years prior to her current position at BU. Ayse received the best paper award at IFIP/IEEE VLSI-SoC Conference in 2009, and won the Dean’s Catalyst Award in 2010 at College of Engineering, Boston University for her research in green computing.



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