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• W3091840003 abstract "We present a detailed discussion of the implementation strategies for a recently developed $w$-stacking $w$-projection hybrid algorithm used to reconstruct wide-field interferometric images. In particular, we discuss the methodology used to deploy the algorithm efficiently on a supercomputer via use of a Message Passing Interface (MPI) $k$-means clustering technique to achieve efficient construction and application of non co-planar effects. Additionally, we show that the use of conjugate symmetry increases the algorithms performance by imaging an interferometric observation of Fornax A from the Murchison Widefield Array (MWA). We perform exact non-coplanar wide-field correction for 126.6 million visibilities using 50 nodes of a computing cluster. The $w$-projection kernel construction takes only 15 minutes, demonstrating that the implementation is both fast and efficient." @default.
• W3091840003 created "2020-10-15" @default.
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• W3091840003 date "2020-01-01" @default.
• W3091840003 modified "2023-10-10" @default.
• W3091840003 title "<i>w</i>-Stacking<i>w</i>-projection hybrid algorithm for wide-field interferometric imaging: implementation details and improvements" @default.
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• W3091840003 doi "https://doi.org/10.1017/pasa.2020.28" @default.
• W3091840003 hasPublicationYear "2020" @default.
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