The International Conference for High Performance Computing, Networking, Storage, and Analysis
The International Conference for High Performance Computing, Networking, Storage, and Analysis
Workshop: First International Workshop on HPC Testing and Evaluation of Systems, Tools, and Software (HPCTESTS 2023)
Authors: Tuomas Koskela, Ilektra Christidi, Mosè Giordano, Emily Dubrovska, and Jamie Quinn (University College London); Christopher Maynard (University of Reading; Met Office, UK); Dave Case (National Centre for Atmospheric Science (NCAS), UK; University of Reading); and Kaan Olgu and Tom Deakin (University of Bristol)
Abstract: The diversity in processor technology used by High Performance Computing (HPC) facilities is growing, and so applications must be written in such a way that they can attain high levels of performance across a range of different CPUs, GPUs, and other accelerators. Measuring application performance across this wide range of platforms becomes crucial, but there are significant challenges to do this rigorously, in a time efficient way, while assuring results are scientifically meaningful, reproducible, and actionable. We present a methodology for measuring and analyzing the performance portability of a parallel application and shares a software framework which combines and extends adopted technologies to provide a usable benchmarking tool. We demonstrate the flexibility and effectiveness of the methodology and benchmarking framework by showcasing a variety of benchmarking case studies which utilize a stable of supercomputing resources at a national scale.