Julia CUDA

import Pkg
Pkg.add("CUDAapi")

Updating registry at `~/.julia/registries/General`
Updating git-repo `https://github.com/JuliaRegistries/General.git`
Resolving package versions... Installed CUDAapi ─ v4.0.0 Updating `~/.julia/environments/v1.4/Project.toml` [3895d2a7] + CUDAapi v4.0.0 Updating `~/.julia/environments/v1.4/Manifest.toml` [3895d2a7] + CUDAapi v4.0.0

using CUDAapi
has_CUDA = "false"
if has_cuda()
    @info "CUDA is on"
    has_CUDA = "true"
end
println("it is ", has_CUDA, " that I have CUDA.")

┌ Info: Precompiling CUDAapi [3895d2a7-ec45-59b8-82bb-cfc6a382f9b3]
└ @ Base loading.jl:1260

it is false that I have CUDA.