A faster copyto_unaliased! #41434
Closed
A faster copyto_unaliased! #41434
Commits on Jul 1, 2021
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Exclude the slow branch in Broadcast's copyto!
julia> a = randn(50,50); b = randn(50,50); # 2D case # before julia> @Btime $a[1:end,1:end] .= $b; 4.900 μs (0 allocations: 0 bytes) julia> @Btime $a[:,:] .= $b; 721.642 ns (0 allocations: 0 bytes) # after julia> @Btime $a[1:end,1:end] .= $b; 355.238 ns (0 allocations: 0 bytes) julia> @Btime $a[:,:] .= $b; 351.643 ns (0 allocations: 0 bytes) julia> a = randn(50*50); b = randn(50*50); #1D case # before julia> @Btime $a .= $b; 406.566 ns (0 allocations: 0 bytes) # after julia> @Btime $a .= $b; 270.607 ns (0 allocations: 0 bytes)
Commits on Jul 2, 2021
Commits on Jul 5, 2021
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Put SimdLoop in advance to avoid bootstrapping (I hope this work)
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Merge pull request #2 from N5N3/revert-1-patch__
Focus on copyto_unalias!, put SimdLoop in advance.
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add a branch to speed up Line To Cart which have the same length
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Use manually expanded SIMD kernal instead of "illegal" `@simd`. Linear to Cartesian copy is even faster when length(dest) > length(src)
Commits on Jul 6, 2021
Commits on Jul 7, 2021
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fix for 0d Cartesian AbstractArray. This version should be fast enough if the size of Cartesian array's first dim is larger than 16 (eltype Float64).
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Merge pull request #6 from N5N3/patch2
fix for 0d Cartesian AbstractArray. This version should be fast enough if the size of Cartesian array's first dim is larger than 16 (eltype Float64).
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Commits on Jul 9, 2021
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Fix for other IndexStyle. Only use manually expanded version when the size of 1st dim >=16
Commits on Jul 10, 2021
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Merge pull request #8 from N5N3/patch2
fix white space, typo error; add test;
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