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Matrix multiply compilation is slow #145

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c42f opened this issue Jul 13, 2016 · 0 comments
Open

Matrix multiply compilation is slow #145

c42f opened this issue Jul 13, 2016 · 0 comments

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@c42f
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c42f commented Jul 13, 2016

As noticed by @andyferris, compilation of matrix multiply is pretty slow. Demo in julia-0.4:

julia> N=6; @time eye(Mat{N,N,Int}) * eye(Mat{N,N,Int})
 10.578540 seconds (819.75 k allocations: 35.073 MB, 0.05% gc time)
FixedSizeArrays.Mat{6,6,Int64}(
    1 0 0 0 0 0
    0 1 0 0 0 0
    0 0 1 0 0 0
    0 0 0 1 0 0
    0 0 0 0 1 0
    0 0 0 0 0 1
)
@c42f c42f mentioned this issue Jul 13, 2016
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