Eurora (EURopean many integrated cORe Architecture) is today the most energy efficient supercomputer in the world. Ranked 1st in the Green500 in July 2013, is a prototype built from Eurotech and Cineca toward next-generation Tier-0 systems in the PRACE 2IP EU project. Euroras outstanding energy-efficiency is achieved by adopting a direct liquid cooling solution and a heterogeneous architecture with best-in-class general purpose HW components (Intel Xeon E5, Intel Xeon Phi and NVIDIA Kepler K20). In this paper we present a novel, low-overhead monitoring infrastructure capable to track in detail and in real-time the thermal and power characteristics of Euroras components with fine-grained resolution. Our experiments give insights on Euroras thermal/power trade-offs and highlight opportunities for run-time power/thermal management and optimization.
Bartolini A.; Cacciari M.; Cavazzoni C.; Tecchiolli G.; Benini L.; Unveiling Eurora – Thermal and power characterization of the most energy-efficient supercomputer in the world, in Design, Automation and Test in Europe Conference and Exhibition (DATE), 2014, Dresden, 24-28 March 2014, Page(s): 1 6, DOI: 10.7873/DATE.2014.290, 2014 IEEE