David Buchaca Prats

I just added `println("Device:", GPUArrays.device(CLArray(rand(10))), "\n")` at the top of the script and I get ``` Device:OpenCL.Device(AMD Radeon Pro 580 Compute Engine on Apple @0x0000000001021c00) result of the sum: 249076.69...

By the way I just tested the code form the readme in CLArrays. ```julia using CLArrays for dev in CLArrays.devices() CLArrays.init(dev) x = zeros(CLArray{Float32}, 5, 5) # create a CLArray...

Yes it is opencl CPU. This tiny test shows us that in the GPU there is no problem. Nevertheless it seems that the probem is the sintax of making an...

This nevertheless does not give us any hint on what is going on in the code at the top of the issue. Maybe it has something to do with memory...

Yeah, just state that the package is designed for GPUs (and maybe not even show in CLArrays.devices the CPU since it is not meant to be used by CLArrays anyway)....

If I try it with sizes `sizes = [100,110,120]` it works: ``` Device:OpenCL.Device(AMD Radeon Pro 580 Compute Engine on Apple @0x0000000001021c00) result of the sum: 249076.69 result of the sum:...

Here there is the Pkg.test() (not passed...) ```julia julia> Pkg.test("CLArrays") INFO: Testing CLArrays Test Summary: | Pass TotalERROR (unhandled task failure): OpenCL Error: OpenCL.Context error: Stacktrace: [1] raise_context_error(::String, ::String) at...

I have also tested OpenCL and the tests are not passed: ```julia julia> Pkg.test("OpenCL") INFO: Testing OpenCL Test Summary: | Pass Total layout | 2 2 Test Summary: | Pass...

@SimonDanisch any Idea of what is going on? Which operating system might be more suitable for OpenCL.jl and CLArrays? I am thinking on installing ubuntu/Elementary os in my mac as...

Thank you for your help! The output of the code you posted is this: ```julia Test Summary: | Pass TotalERROR (unhandled task failure): OpenCL Error: OpenCL.Context error: Stacktrace: [1] raise_context_error(::String,...