ECE: Electrical & Computer Engineering
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CESCA Seminar Talk: “TUE, a New Energy-Efficiency Metric Applied at ORNL's Jaguar

2:30 PM on Friday, April 4, 2014
Location: Lavery Hall 320

Talk by Dr. Chung-Hsing Hsu, Oak Ridge National Laboratory.

Time: From 2:30pm to 3:45pm


Energy efficiency has become a major concern in high performance computing (HPC). In this talk I will start by mentioning a few ongoing community efforts in energy efficient HPC. Then I will go in depth and discuss one of these efforts. Specifically, I will present a new energy-efficient metric called TUE (Total-power Usage Effectiveness). TUE provides a ratio of total energy,(internal and external support energy uses) and the specific energy used in the HPC. This effort aims to
more accurately account for the power distribution and cooling losses while system suppliers are moving power and cooling subsystems into or out of the IT equipment. I will conclude the talk with a case study of measurements at ORNL's Jaguar system.


Dr. Chung-Hsing Hsu is an R&D staff member with the Computer Science Group of the Oak Ridge National Laboratory (ORNL). Before joining ORNL in 2009, he was a technical staff member at Los Alamos National Laboratory. Dr. Hsu's
expertise is in computer program translation and energy efficient computing. His current research focuses on enhancing power awareness in HPC environments. Hsu has a Ph.D. degree in computer science from Rutgers University.

(Previous CESCA Seminar talks are available at