Will installing CUDA for my Nvidia card make OpenCL available?

I'm trying to use a program called 'pyrit' which can use OpenCL. When I run the program, I get this warning:

Failed to load Pyrit's OpenCL-core ('Failed to enumerate OpenCL-platforms (Unknown CLresult)')

(the code for pyrit to work with opencl has been successfully compiled and installed already)

I have an Nvidia Hybrid Optimus graphics card (geforce gt 630m), and I assume I need to enable OpenCL for it to work properly. I want to avoid CUDA if I can, but I don't know if that's an option.

I'm not sure what I need to do to enable OpenCL. Should I just follow the normal instructions for installing CUDA as described here? How can I get nVidia CUDA or OpenCL working on a laptop with nVidia discrete card/Intel Integrated Graphics?