TY - GEN
T1 - Development of an Optimized Real-Time Radio Transient Imager for LWA-SV
AU - Krishnan, Hariharan
AU - Kent, James
AU - Dowell, Jayce
AU - Bearsdley, Adam P.
AU - Bowman, Judd D.
AU - Taylor, Greg B.
AU - Thyagarajan, Nithyanandhan
AU - Jacobs, Daniel
N1 - Funding Information:
ACKNOWLEDGMENT This work is supported by National Science Foundation awards AST-1710719 and AST-1711164. Construction of the LWA has been supported by the Office of Naval Research under Contract N00014-07-C-0147 and by the AFOSR. Support for operations and continuing development of the LWA1 is provided by the Air Force Research Laboratory (AFRL) and the National Science Foundation under grants AST-1835400 and AGS-1708855. APB is supported by a National Science Foundation Astronomy and Astrophysics Postdoctoral Fellowship under award AST-1701440.
PY - 2020/7/5
Y1 - 2020/7/5
N2 - In this paper, we describe our efforts towards the development of a real-time radio imaging correlator for the Long-Wavelength Array station in Sevilleta, New Mexico. We briefly discuss the direct-imaging algorithm and present the architecture of the GPU implementation. We describe the code-level modifications carried out for one of the modules in the algorithm that improves GPU-memory management and highlight the performance improvements achieved through it. We emphasize our ongoing efforts in tuning the overall run-time duration of the correlator which in turn is expected to increase the operating bandwidth in order to address the demands of wide-band capability for radio transient science.
AB - In this paper, we describe our efforts towards the development of a real-time radio imaging correlator for the Long-Wavelength Array station in Sevilleta, New Mexico. We briefly discuss the direct-imaging algorithm and present the architecture of the GPU implementation. We describe the code-level modifications carried out for one of the modules in the algorithm that improves GPU-memory management and highlight the performance improvements achieved through it. We emphasize our ongoing efforts in tuning the overall run-time duration of the correlator which in turn is expected to increase the operating bandwidth in order to address the demands of wide-band capability for radio transient science.
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U2 - 10.23919/USNC/URSI49741.2020.9321611
DO - 10.23919/USNC/URSI49741.2020.9321611
M3 - Conference contribution
AN - SCOPUS:85100687823
T3 - 2020 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC/URSI 2020 - Proceedings
SP - 169
EP - 170
BT - 2020 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC/URSI 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium), USNC/URSI 2020
Y2 - 5 July 2020 through 10 July 2020
ER -