warn about bad CUDA Toolkit versions

Author: marius311

src/proj_lambert.jl

@@ -46,6 +46,10 @@ ProjLambert(;Ny, Nx, θpix=1, rotator=(0,90,0), T=Float32, storage=Array) =
 
 @memoize function ProjLambert(Ny, Nx, θpix, rotator, ::Type{T}, storage) where {T}
 
+    if @isdefined(CUDA) && CUDA.runtime_version() >= v"11.5" && (Ny*Nx > 1024^2)
+        @warn("For maps with >1024² pixels, CUDA Toolkit >= 11.5 is known to have FFT instabilties, please downgrade.")
+    end
+
     # storage might be e.g. CuArrayAdaptor which will force T to be Float32
     T′           = eltype(adapt(storage, Vector{T}()))