PandAna: A Python Analysis Framework for Scalable High Performance Computing in High Energy Physics

¹ Department of Physics, Colorado State University, Fort Collins, Colorado 80523, USA
² Department of Physics, Indiana University, Bloomington, Indiana 47405, USA
³ Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA

^* e-mail: micah.groh@colostate.edu

Published online: 23 August 2021

Abstract

Modern experiments in high energy physics analyze millions of events recorded in particle detectors to select the events of interest and make measurements of physics parameters. These data can often be stored as tabular data in files with detector information and reconstructed quantities. Most current techniques for event selection in these files lack the scalability needed for high performance computing environments. We describe our work to develop a high energy physics analysis framework suitable for high performance computing. This new framework utilizes modern tools for reading files and implicit data parallelism. Framework users analyze tabular data using standard, easy-to-use data analysis techniques in Python while the framework handles the file manipulations and parallelism without the user needing advanced experience in parallel programming. In future versions, we hope to provide a framework that can be utilized on a personal computer or a high performance computing cluster with little change to the user code.