What I doing wrong? Ubuntu:
I'm getting what looks to be the same issue as mich, I'm on Debian 6:
Sorry about that! Apparently I don't know how to use setuptools correctly.
I just pushed a fix for that problem into the Github repository. You can try that if you like.
Because o has to come before p, opencl before phatk2. Maybe you should rename it 00-opencl. 
A better fix for that problem is to use a function which loads the kernel if it hasn't already been imported. I'm working on that now...