Conference item
Searching for pulsars in extreme orbits — GPU acceleration of the Fourier domain 'jerk' search
- Abstract:
- Binary pulsars are an important target for radio surveys because they present a natural laboratory for a wide range of astrophysics for example testing general relativity, including detection of gravitational waves. The orbital motion of a pulsar which is locked in a binary system causes a frequency shift (a Doppler shift) in their normally very periodic pulse emissions. These shifts cause a reduction in the sensitivity of traditional periodicity searches. To correct this smearing Ransom [2001], Ransom et al. [2002] developed the Fourier domain acceleration search (FDAS) which uses a matched filtering technique. This method is however limited to a constant pulsar acceleration. Therefore, Andersen and Ransom [2018] broadened the Fourier domain acceleration search to account also for a linear change in the acceleration by implementing the Fourier domain "jerk" search into the PRESTO software package. This extension increases the number of matched filters used significantly. We have implemented the Fourier domain "jerk" search (JERK) on GPUs using CUDA. We have achieved 90x performance increase when compared to the parallel implementation of JERK in PRESTO. This work is part of the AstroAccelerate project Armour et al. [2019], a many-core accelerated time-domain signal processing library for radio astronomy.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Accepted manuscript, pdf, 121.9KB, Terms of use)
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- Publication website:
- http://www.aspbooks.org/a/volumes/table_of_contents/527
Authors
- Publisher:
- Astronomical Society of the Pacific
- Pages:
- 671-674
- Series:
- Astronomical Society of the Pacific Conference Series
- Series number:
- 527
- Publication date:
- 2020-12-31
- Acceptance date:
- 2019-10-05
- Event title:
- 29th Annual Conference on Astronomical Data Analysis Software and Systems (ADASS XXIX)
- Event location:
- Groningen, the Netherlands
- Event website:
- https://www.adass2019.nl/
- Event start date:
- 2019-10-06
- Event end date:
- 2019-10-10
- EISBN:
- 9781583819425
- ISBN:
- 9781583819418
- Language:
-
English
- Keywords:
- Pubs id:
-
1071373
- Local pid:
-
pubs:1071373
- Deposit date:
-
2020-07-07
- ARK identifier:
Terms of use
- Copyright holder:
- Astronomical Society of the Pacific
- Copyright date:
- 2020
- Rights statement:
- © 2020 Astronomical Society of the Pacific.
- Notes:
- This conference paper was presented at the 29th Annual Conference on Astronomical Data Analysis Software and Systems (ADASS XXIX), 6-10 October 2019, Groningen, the Netherlands. This is the accepted manuscript version of the paper. The final version is available online from the Astronomical Society of the Pacific at: http://www.aspbooks.org/a/volumes/table_of_contents/527
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