Seminar (Cancelled)
The MIDAS Touch: Managing Processor Physics to Sustain Performance Scaling

Prof. Sudhakar Yalamanchili
Center for Experimental Research in Computer Systems
School of Electrical and Computer Engineering
Georgia Institute of Technology

 :  01 Nov 2013 (Fri)
 :  2:30pm - 3:30pm
Venue  :  Rm 3408, 3/F (Lift 17-18), Academic Complex, HKUST


As industry moves to increasingly small feature sizes, performance scaling will become increasingly dominated by the physics of the computing environment. There are fundamental trade-offs to be made at the microarchitectural level between performance, energy/power, and reliability. We refer to the body of knowledge addressing the impact of physics on such system level metrics as the processor physics.  Relatively few efforts to date have targeted understanding, characterizing, and managing the multi-physics and multi-scale (nanoseconds to milliseconds) transient interactions between the delivery, dissipation, and removal (cooling) of energy and their impact on system level performance.  This talk will describe efforts at GT to i) understand how interacting physical phenomena affect architecture level tradeoffs, and ii) apply this understanding to develop operational principles for reliable, energy-efficient heterogeneous multicore architectures.  In particular, the talk will cover recent work on improved dynamic power management in a commodity CPU-GPU system.

Sudhakar Yalamanchili earned his Ph.D degree in Electrical and Computer Engineering in 1984 from the University of Texas at Austin. Upon graduation, he joined Honeywell’s Systems and Research Center in Minneapolis working on embedded multiprocessor architectures.  He joined the ECE faculty at Georgia Tech in 1989 where he is now a Joseph M. Pettit Professor of Computer Engineering.  He is the author of two texts on VHDL-based simulation modeling and synthesis, and co-author with J. Duato and L. Ni, of Interconnection Networks: An Engineering Approach, Morgan Kaufman, 2003.  His current research foci lie in addressing the software challenges of heterogeneous architectures and solutions to power and thermal issues in many core architectures and systems.  Since 2003 he has been a Co-Director of the NSF Industry University Cooperative Research Center on Experimental Computer Systems at Georgia Tech.  Dr. Yalamanchili regularly contributes professionally on editorial boards and program committees.