public CUfunction getKernelFunction(Kernel f) {
CUfunction function = kernels.get(f);
if (function == null) throw new CudaException("No such function " + f);
return function;
}
private void initFunction(CUmodule module, Kernel name) {
CUfunction function = new CUfunction();
JCudaDriver.cuModuleGetFunction(function, module, name.name());
kernels.put(name, function);
}