They're not, but I also misunderstood the original question, they're referring to the correct definition of kernel. I thought they were confusing the GPU kernel

They're not, but I also misunderstood the original question, they're referring to the correct definition of kernel. I thought they were confusing the GPU kernel with https://en.wikipedia.org/wiki/Kernel_method https://en.wikipedia.org/wiki/Kernel_method or https://en.wikipedia.org/wiki/Kernel_(image_processing) https://en.wikipedia.org/wiki/Kernel_(image_processing)