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DTSTAMP:20211207T055403Z
LOCATION:Second Floor Atrium
DTSTART;TZID=America/Chicago:20211116T083000
DTEND;TZID=America/Chicago:20211116T170000
UID:submissions.supercomputing.org_SC21_sess278_rpost158@linklings.com
SUMMARY:Parallel GRB Source Localization Pipelines for the Advanced Partic
 le-Astrophysics Telescope
DESCRIPTION:Posters, Research Posters\n\nParallel GRB Source Localization 
 Pipelines for the Advanced Particle-Astrophysics Telescope\n\nSudvarg, Whe
 elock, Buhler, Buckley, Chen\n\nThe Advanced Particle-astrophysics Telesco
 pe (APT) is a planned space-based observatory to survey the entire sky for
  gamma-ray bursts (GRBs). It seeks to promptly detect these transient even
 ts, then communicate with narrow-band instruments for follow-up observatio
 ns. To this end, we are developing analytical methods for real-time detect
 ion and localization of GRBs, targeting computing hardware that might fly 
 onboard the orbiting platform.\n\nIn prior work, we implemented a three-st
 age software pipeline on a low-powered ARM CPU. In this work, we present G
 PU-accelerated algorithms for the last two pipeline stages, measure execut
 ion times on an NVIDIA GeForce RTX 2080, then apply a scaling factor to es
 timate performance on a 10-watt NVIDIA Jetson NX Xavier board. For the sec
 ond stage, we demonstrate an estimated speedup of 3-3.5x over the CPU impl
 ementation for large datasets. For the third stage, we demonstrate that GP
 U acceleration significantly slows the increase of execution time with inp
 ut size.\n\nRegistration Category: Tech Program Reg Pass, Exhibit Hall Onl
 y
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