Error when using dynamic parallelism with six or more arguments

Specific Domains GPU
1

Hi,

I’m getting an error (unsupported dynamic function invocation) when I run

manyArgs(a, b, c, d, e, f) = nothing
caller() = (@CUDA.cuda dynamic=true manyArgs(1,2,3,4,5,6); nothing)
@CUDA.cuda caller()

while

manyArgs(a, b, c, d, e) = nothing
caller() = (@CUDA.cuda dynamic=true manyArgs(1,2,3,4,5); nothing)
@CUDA.cuda caller()

runs fine. Is there a limitation on the number of arguments I can pass when starting child kernels?

Thanks

2

Apparently that code doesn’t get inferred completely, causing it to fail to compile. You can open an issue, but with the current Julia compiler it might be hard to fix.