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- Spotting radio transients with the help of GPUs
- Barsdell, Benjamin R.; Bailes, Matthew; Barnes, David G.; Fluke, Christopher J.
- Exploration of the time-domain radio sky has huge potential for advancing our knowledge of the dynamic universe. Past surveys have discovered large numbers of pulsars, rotating radio transients and other transient radio phenomena; however, they have typically relied upon off-line processing to cope with the high data and processing rate. This paradigm rules out the possibility of obtaining high-resolution base-band dumps of significant events or of performing immediate follow-up observations, limiting analysis power to what can be gleaned from detection data alone. To overcome this limitation, real-time processing and detection of transient radio events is required. By exploiting the significant computing power of modern graphics processing units (GPUs), we are developing a transient-detection pipeline that runs in real-time on data from the Parkes radio telescope. In this paper we discuss the algorithms used in our pipeline, the details of their implementation on the GPU and the challenges posed by the presence of radio frequency interference.
- Publication type
- Conference paper
- Research centre
- Swinburne University of Technology
- Astronomical Society of the Pacific conference series: Proceedings of the 21st Annual Conference on Astronomical Data Analysis Software and Systems (ADASS XXI), Paris, France, 06-10 November 2011 / Pascal Ballester (eds.), Vol. 461, pp. 37-40
- Publication year
- Astrophysical computation; Computational processing power; Data processing; GPU; Graphics processing units
- Astronomical Society of the Pacific
- 9781583818046, 1583818049
- Publisher URL
- Copyright © 2012 Astronomical Society of the Pacific. The published version is reproduced with the kind permission of the publisher.
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