Memory-efficient w-projection with the fast Gauss transform

arxiv: 1301.3950 · v1 · pith:ZNNRLY36new · submitted 2013-01-16 · 🌌 astro-ph.IM

Memory-efficient w-projection with the fast Gauss transform

Keith W. Bannister , Tim J. Cornwell This is my paper

classification 🌌 astro-ph.IM

keywords arrayfastgaussperformancetransformw-projectionactualalgorithms

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We describe a method performing w-projection using the fast Gauss transform of Strain (1991). We derive the theoretical performance, and simulate the actual performance for a range of w for a canonical array. While our implementation is dominated by overheads, we argue that this approach could for the basis of a higher-performing algorithms with particular application to the Square Kilometer Array.

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Memory-efficient w-projection with the fast Gauss transform

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