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May 8 – 12, 2023
Norfolk Waterside Marriott
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IceCube SkyDriver - A SaaS Solution for Event Reconstruction using the Skymap Scanner

May 8, 2023, 12:00 PM
Marriott Ballroom II-III (Norfolk Waterside Marriott)

Marriott Ballroom II-III

Norfolk Waterside Marriott

235 East Main Street Norfolk, VA 23510
Oral Track 4 - Distributed Computing Track 4 - Distributed Computing


Evans, Ric (IceCube, University of Wisconsin-Madison)


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.

Consider for long presentation Yes

Primary authors

Evans, Ric (IceCube, University of Wisconsin-Madison) Schultz, David (IceCube, University of Wisconsin-Madison) Riedel, Benedikt (IceCube, University of Wisconsin-Madison)

Presentation materials