Journal article
Sofia 2 - An automated, parallel H i source finding pipeline for the WALLABY survey
T Westmeier, S Kitaeff, D Pallot, P Serra, JM Van Der Hulst, RJ Jurek, A Elagali, BQ For, D Kleiner, BS Koribalski, K Lee-Waddell, JR Mould, TN Reynolds, J Rhee, L Staveley-Smith
Monthly Notices of the Royal Astronomical Society | Published : 2021
Abstract
We present sofia 2, the fully automated 3D source finding pipeline for the WALLABY extragalactic H i survey with the Australian SKA Pathfinder (ASKAP). sofia 2 is a reimplementation of parts of the original sofia pipeline in the c programming language and makes use of OpenMP for multithreading of the most time-critical algorithms. In addition, we have developed a parallel framework called sofia-X that allows the processing of large data cubes to be split across multiple computing nodes. As a result of these efforts, sofia 2 is substantially faster and comes with a much reduced memory footprint compared to its predecessor, thus allowing the large WALLABY data volumes of hundreds of gigabytes ..
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Grants
Awarded by European Commission
Funding Acknowledgements
We wish to thank the referee for not only providing us with a constructive and helpful report but also taking the time to install and test SOFIA 2. This effort has led to several improvements to both the software and its documentation. The Australian SKA Pathfinder is part of the Australia Telescope National Facility which is managed by CSIRO. Operation of ASKAP is funded by the Australian Government with support from the National Collaborative Research Infrastructure Strategy. ASKAP uses the resources of the Pawsey Supercomputing Centre. Establishment of ASKAP, the Murchison Radio-astronomy Observatory and the Pawsey Supercomputing Centre are initiatives of the Australian Government, with support from the Government of Western Australia and the Science and Industry Endowment Fund. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. The authors acknowledge support from the Astronomy Data And Computing Services (ADACS) Software Support Programme and the Australian SKA Regional Centre (AusSRC) Design Study Programme. Parts of this research were supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement no. 679627, project name FORNAX). JMvdH acknowledges support from the European Research Council under the European Union's Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement no. 291531 (HIStoryNU). This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.