Green500, Lawrence Livermore National Laboratory, United States of America
With power being a first-order design constraint on par with performance, it is important to measure and analyze energy efficiency trends in supercomputing. To raise the awareness of greenness as a first-order design constraint, the Green500 seeks to characterize the energy efficiency of supercomputers for different metrics, workloads and methodologies. This BoF discusses trends across the Green500 and highlights from the current Green500 list. In addition, the Green500, Top500 and Energy-Efficient HPC Working Group have been working together on improving power measurement methodology; this BoF presents case studies from sites with submissions that meet the highest quality of measurement methodology.