JUNE 18–22, 2017

Session Details

Name: BoF 14: The Green500: Trends for Energy-Efficient Supercomputing
Time: Tuesday, June 20, 2017
03:45 pm - 04:45 pm
Room:   Substanz 1+2  
Breaks:04:45 pm - 05:15 pm Coffee Break
Speaker:   Wu Feng, Virginia Tech
  Erich Strohmaier, LBNL
  Torsten Wilde, LRZ
Abstract:   With power a first-order design constraint on par with performance, it is important to measure and analyze trends for energy-efficient supercomputing. To raise the awareness of greenness as a first-order design constraint, the Green500 seeks to characterize the energy efficiency of supercomputers with respect to different metrics, workloads, and methodologies. The Green500 list ranks the top 500 supercomputers in the world by energy efficiency. The focus of performance-at-any-cost computer operations has led to the emergence of supercomputers that consume vast amounts of electrical power and produce so much heat that large cooling facilities must be constructed to ensure proper performance. To address this trend, the Green500 list puts a premium on energy-efficient performance for sustainable supercomputing. This BOF will discuss trends across the Green500 and highlights from the current Green500 list. The Green500 and TOP500 have a newly integrated submission process designed to streamline future submissions and to provide a consistent set of data for the historical record. This BOF will also provide a forum for community review of the integrated submission process. The Green500, Top500 and the Energy Efficient HPC Working Group have developed a methodology for measuring power while running a workload, such as High Performance Linpack (HPL). The methodology defines three quality levels; essentially a “good”, “better”, “best” with Level 3 having the highest quality. This BOF will present case studies from sites that have made submissions that meet the “best” or Level 3 requirements. The BoF will also encourage broader evaluation and feedback on the methodology.

Targeted Audience
The targeted audience is broad and varied. It includes those involved in making a submission to the Green500 List would attend this BOF. It also includes computer scientists, engineers and architects involved in benchmarking and architectural analysis. It would also include marketing and sales personnel from system integrators and other vendors whose products are highlighted on the Green500 List. Finally, it also targets members of the EE HPC WG (of which there are now over 650 from 25+ countries).