Conference item
A GPU implementation of the harmonic sum algorithm
- Abstract:
- Time-domain radio astronomy utilizes a harmonic sum algorithm as part of the Fourier domain periodicity search, this type of search is used to discover single pulsars. The harmonic sum algorithm is also used as part of the Fourier domain acceleration search which aims to discover pulsars that are locked in orbit around another pulsar or compact object. However porting the harmonic sum to many-core architectures like GPUs is not a straightforward task. The main problem that must be overcome is the very unfavorable memory access pattern, which gets worse as the dimensionality of the harmonic sum increases. We present a set of algorithms for calculating the harmonic sum that are more suited to many-core architectures such as GPUs. We present an evaluation of the sensitivity of these different approaches, and their performance. This work forms part of the AstroAccelerate project (Armour et al. 2013) which is a GPU accelerated software package for processing time-domain radio astronomy data.
- Publication status:
- Published
- Peer review status:
- Reviewed (other)
Actions
Authors
- Publisher:
- Astronomical Society of the Pacific
- Host title:
- Astronomical Data Analysis Software and Systems XXVIII
- Journal:
- Astronomical Data Analysis Software and Systems XXVIII More from this journal
- Volume:
- 523
- Pages:
- 489-492
- Series:
- Astronomical Society of the Pacific Conference Series
- Publication date:
- 2019-10-31
- Acceptance date:
- 2018-11-01
- ISSN:
-
1050-3390
- ISBN:
- 9781583819333
- Language:
-
English
- Pubs id:
-
pubs:951520
- UUID:
-
uuid:81fd75b5-5d17-44b8-ae43-81f2f8def1bb
- Local pid:
-
pubs:951520
- Source identifiers:
-
951520
- Deposit date:
-
2018-12-11
Terms of use
- Copyright holder:
- Astronomical Society of the Pacific
- Copyright date:
- 2019
- Rights statement:
- © 2019 Astronomical Society of the Pacific.
- Notes:
- This paper was first presented at the 28th annual conference on Astronomical Data Analysis Software and Systems (ADASS XXVIII), which was held on 11-15 November in College Park, MD, USA. This is the accepted manuscript version of the article. The final version is available online from Astronomical Society of the Pacific at: http://www.aspbooks.org/a/volumes/article_details/?paper_id=39291
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