Portal de Periódicos da CAPES

Power-Efficient Computing: Experiences from the COSA Project

2017; Hindawi Publishing Corporation; Volume: 2017; Linguagem: Inglês

10.1155/2017/7206595

1875-919X

Daniele Cesini, Elena Corni, Antonio Falabella, Andrea Ferraro, Lucia Morganti, Enrico Calore, Sebastiano Fabio Schifano, M. Michelotto, Roberto Alfieri, R. De Pietri, T. Boccali, A. Biagioni, Francesca Lo Cicero, A. Lonardo, Michele Martinelli, Pier Stanislao Paolucci, Elena Pastorelli, P. Vicini,

Advanced Data Storage Technologies

Energy consumption is today one of the most relevant issues in operating HPC systems for scientific applications. The use of unconventional computing systems is therefore of great interest for several scientific communities looking for a better tradeoff between time-to-solution and energy-to-solution. In this context, the performance assessment of processors with a high ratio of performance per watt is necessary to understand how to realize energy-efficient computing systems for scientific applications, using this class of processors. Computing On SOC Architecture (COSA) is a three-year project (2015–2017) funded by the Scientific Commission V of the Italian Institute for Nuclear Physics (INFN), which aims to investigate the performance and the total cost of ownership offered by computing systems based on commodity low-power Systems on Chip (SoCs) and high energy-efficient systems based on GP-GPUs. In this work, we present the results of the project analyzing the performance of several scientific applications on several GPU- and SoC-based systems. We also describe the methodology we have used to measure energy performance and the tools we have implemented to monitor the power drained by applications while running.