NPAT - A Power Analysis Tool at NERSC.

Power has recently become a significant limiting factor in supercomputing. It is imperative that future high-performance computing (HPC) systems are energy-efficient. Efficient system designs necessitate understanding the power signature of current supercomputing workloads. Additionally, that understanding will enable power efficiency improvements in existing systems. With advancements in power measurement and data collection techniques, many computing centers, including NERSC, collect a vast amount of data every second, including power usage and other performance metrics. However, access is not straightforward, being a time-consuming process. In this paper, we propose NPAT, a power analysis tool that aims to provide easy access to power usage data on the web. It provides a quick and accessible way to view the power usage data of NERSC systems, jobs, and applications. Being implemented in PHP, Javascript, and Python with open-source libraries and modules, it promises effortless portability to other sites.