https://doi.org/10.1051/epjconf/202429504023
IceCube SkyDriver – A SaaS Solution for Event Reconstruction using the Skymap Scanner
1 Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin– Madison, Madison, WI 53706, USA
2 Morgridge Institute for Research, Madison, WI 53715, USA
3 Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
4 Dept. of Computer Science, University of Wisconsin–Madison, Madison, WI 53706, USA
* e-mail: eevans@icecube.wisc.edu
Published online: 6 May 2024
The IceCube Neutrino Observatory is a cubic kilometer neutrino telescope located at the geographic South Pole. To accurately and promptly reconstruct the arrival direction of candidate neutrino events for Multi-Messenger Astrophysics use cases, IceCube employs Skymap Scanner workflows managed by the SkyDriver service. The Skymap Scanner performs maximum-likelihood tests on individual pixels generated from the Hierarchical Equal Area isoLatitude Pixelation (HEALPix) algorithm. Each test is computationally independent, which allows for massive parallelization. This workload is distributed using the Event Workflow Management System (EWMS)—a message-based workflow management system designed to scale to trillions of pixels per day. SkyDriver orchestrates multiple distinct Skymap Scanner workflows behind a REST interface, providing an easy-to-use reconstruction service for real-time candidate, cataloged, and simulated events. Here, we outline the SkyDriver service technique and the initial development of EWMS.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
