A novel greedy approach to harmonic summing using GPUs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21240%2F22%3A00360538" target="_blank" >RIV/68407700:21240/22:00360538 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.ascom.2022.100621" target="_blank" >https://doi.org/10.1016/j.ascom.2022.100621</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ascom.2022.100621" target="_blank" >10.1016/j.ascom.2022.100621</a>
Alternative languages
Result language
angličtina
Original language name
A novel greedy approach to harmonic summing using GPUs
Original language description
One-dimensional incoherent harmonic summing is a technique used to improve the sensitivity of Fourier domain search methods. In time-domain radio astronomy, the harmonic sum is a part of the Fourier domain periodicity search, which aims to detect isolated single pulsars. We present a new harmonic sum algorithm based on the greedy approach and an implementation of this on NVIDIA GPUs using the CUDA programming language. The new algorithm determines which samples to add according to short-term gains. We present an evaluation of the sensitivity of the new approach and its performance against the PRESTO harmonic sum a standard used in radio astronomy. The new Greedy harmonic sum has, on average, 20% higher sensitivity whilst it has the same performance as the standard algorithm. This work forms part of the AstroAccelerate project which is a GPU accelerated software package for processing time-domain radio astronomy data.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000765" target="_blank" >EF16_019/0000765: Research Center for Informatics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy and Computing
ISSN
2213-1337
e-ISSN
2213-1345
Volume of the periodical
40
Issue of the periodical within the volume
July
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
1-9
UT code for WoS article
000864897600001
EID of the result in the Scopus database
2-s2.0-85135409849