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psvd memory allocation #25

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johnnychen94 opened this issue Sep 28, 2020 · 0 comments

johnnychen94 commented Sep 28, 2020 •

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Unsure of it, but it seems to me that psvd isn't optimal wrt memory allocations.

julia> x = rand(Float64, 49, 80);

julia> @btime svd($x; alg=LinearAlgebra.QRIteration());
  745.601 μs (9 allocations: 125.38 KiB)

julia> @btime psvd($x);
  998.062 μs (106 allocations: 503.63 KiB)

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