different kernels for different architectures

Question

I am wondering if there is some easy way as to have different versions of a kernel for different architectures. Is their an easy way? or the only possibility is to define independent kernels in independent files and ask nvcc to compile to different architecture per file?

Answer 1

You can do that by compiler directives. Something like

__global__ void kernel(...) {

# if __CUDA_ARCH__ >= 350

    do something

# else

    do something else

# endif

}