Support Metal

[CarloLucibello]

Needs gather/scatter kernels in NNlib

[Dsantra92]

Is there a metal support planned for NNlib?

[CarloLucibello]

It could be the case that gather/scatter already work on metal arrays thanks to FluxML/NNlib.jl#487, but it has not been tested yet. Do you have access to some apple silicon?

Or we can add some metal tests on NNlib and execute them on buildkite (e.g. Flux.jl is already testing metal support (https://github.com/FluxML/Flux.jl/blob/master/.buildkite/pipeline.yml)

[Dsantra92]

I have access to a base variant of apple silicon. I would be happy to test some of these out.

[CarloLucibello]

See FluxML/NNlib.jl#534

[achiverram28]

I am having the macbook pro m2 pro . I would like to test the metal support with this

[achiverram28]

Checked out , gather works , but scatter fails due to ERROR: Compilation to native code failed
Yes , this is also pointed out in FluxML/NNlib.jl#534

[CarloLucibello]

With JuliaConcurrent/Atomix.jl#39 maybe things should work

[CarloLucibello]

Atomix 1.0 allows some progress but the scatter kernel still errors FluxML/NNlib.jl#534 (comment)