Avoid broadcasting over a Q matrix
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Gentle bump. |
matthewware
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Sep 15, 2022
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@gribeill I'll go ahead and merge this feel free to revert or modify. @dkarrasch Thank you for the PR |
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This came up in a nanosoldier run related to JuliaLang/julia#46196. Broadcasting over a
Qmatrix is superslow because it falls back to elementwisegetindex. My proposal computes the full (square) matrix representation, and subsequently overwrites temporary storage. Especially for largeX, this should speed up the function quite significantly.