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CuArrays can lose Blas on reshaped views #78

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ChrisRackauckas opened this issue May 19, 2020 · 1 comment · Fixed by #450

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ChrisRackauckas commented May 19, 2020

using CuArrays
CuArrays.allowscalar(false)
inn = 784; out = 32
p = randn(784*100) |> gpu
x = rand(Float32, 784, 100) |> gpu
p[reshape(1:(out*inn),out,inn)] * x
@view(p[reshape(1:(out*inn),out,inn)]) * x

Note that this now works in Julia Base on v1.5 because of @mbauman JuliaLang/julia#34729

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vchuravy commented May 20, 2020

Yeah, two layers of abstraction is where things start to break and we stop defining definitions due to combinatorial explosion

maleadt transferred this issue from JuliaGPU/CuArrays.jl

maleadt added bug cuda array labels

maleadt mentioned this issue

Allow use of strided vectors with mul! (gemv! and gemm!) #450

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maleadt closed this as completed in #450

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