I was debugging some Buildkite CI errors in KomaMRI and narrowed the issue down to indexing into a matrix that's “too big.” This is a MWE:
using oneAPI
x = randn(Float32, 513, 3)
x_one = convert(oneArray, x)
julia> y = x[:, 1:2]
513×2 Matrix{Float32}:
-0.785065 0.605889
-0.138269 -0.886778
-0.418909 -0.302653
-0.0957128 -0.974546
⋮
-0.486535 -0.594906
1.42615 -1.00182
0.0519026 -0.0332484
julia> y_one = x_one[:, 1:2]
513×2 oneArray{Float32, 2, oneAPI.oneL0.DeviceBuffer}:
-0.785065 0.0
-0.138269 0.0
-0.418909 0.0
-0.0957128 0.0
⋮
-0.486535 0.0
1.42615 -1.00182
0.0519026 -0.0332484Which is very interesting, as it does not happen when using views:
julia> y = @view x[:, 1:2]
513×2 view(::Matrix{Float32}, :, 1:2) with eltype Float32:
-0.785065 0.605889
-0.138269 -0.886778
-0.418909 -0.302653
-0.0957128 -0.974546
⋮
-0.486535 -0.594906
1.42615 -1.00182
0.0519026 -0.0332484
julia> y_one = @view x_one[:, 1:2]
513×2 oneArray{Float32, 2, oneAPI.oneL0.DeviceBuffer}:
-0.785065 0.605889
-0.138269 -0.886778
-0.418909 -0.302653
-0.0957128 -0.974546
⋮
-0.486535 -0.594906
1.42615 -1.00182
0.0519026 -0.0332484I am using Julia 1.11.6 and oneAPI 2.0.3. Not really sure what could be the cause, but when I use x = randn(Float32, 512, 3) it starts working again, so it seems to be related to the size of the array.
I was debugging some Buildkite CI errors in KomaMRI and narrowed the issue down to indexing into a matrix that's “too big.” This is a MWE:
Which is very interesting, as it does not happen when using
views:I am using Julia 1.11.6 and oneAPI 2.0.3. Not really sure what could be the cause, but when I use
x = randn(Float32, 512, 3)it starts working again, so it seems to be related to the size of the array.