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Support sampling of antenna terms at unique time, feed and antenna, rather than per row #268

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sjperkins opened this issue Jan 27, 2022 · 0 comments
Open

Support sampling of antenna terms at unique time, feed and antenna, rather than per row #268

sjperkins opened this issue Jan 27, 2022 · 0 comments
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enhancement New feature or request

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sjperkins commented Jan 27, 2022 •
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Within the FUSED RIME, the beam is sampled twice per row, and there is a non-trivial degree of computation involved: https://github.com/ska-sa/codex-africanus/blob/174645637b39ea037a7b557e29cdebd55ba0146c/africanus/experimental/rime/fused/terms/cube_dde.py#L149-L295

The performant solution would to evaluate antenna terms per unique, time, feed and antenna, multiply them together and cache the results for use within the RIME onion.

Originally posted by @sjperkins in #265 (comment)
@sjperkins sjperkins added the enhancement New feature or request label Jan 27, 2022
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