The Search for Energy Efficiency: From Hardware to Software And Back

ECE Seminar: The Search for Energy Efficiency: From Hardware to Software And Back

Starts at: September 29, 2016 4:30 PM

Ends at: 6:00 PM

Location: Scaife Hall 125

Speaker: Dr. Martha A. Kim

Affiliation: Associate Professor Computer Science – ARCADE Lab Columbia University

Link to Abstract

Link to Video (1)



Modern demand for energy-efficient computation has spurred research at all levels of the stack, from devices to microarchitecture, operating systems, compilers, and languages. Unfortunately, this breadth has resulted in a disjointed space, with techniques at different levels of the system stack rarely compared or alone coordinated. In this talk I will present a series of experiments in software energy efficiency that reveal the relative opportunities afforded by progressively more aggressive techniques. I will present a measurement study of existing configuration knobs in the OS, a detailed case study of algorithmic re-implementation, and lastly an experiment that compares application-level power capping with system-level power caps.


Martha Kim is an Associate Professor of Computer Science at Columbia University where she leads the ARCADE Lab. Kim holds a PhD in Computer Science and Engineering from the University of Washington and a bachelors in Computer Science from Harvard University.

Kim's research interests are in computer architecture, parallel programming, compilers, and low-power computing. Her work has explored low-cost chip manufacturing systems, reconfigurable communication networks, and fine-grained parallel application profiling techniques. Her current research focuses on hardware and software techniques to improve the usability of hardware accelerators as well as data-centric accelerator design.

She is the recipient of the 2013 Rodriguez Family Award, the 2015 Edward and Carole Kim Faculty Involvement Award, a 2013 NSF CAREER award, and the 2016 Anita Borg Early Career Award.