One thing I haven't figured out and google isn't helping me, is why is it possible to have bank conflicts with shared memory, but not in global memory? Can there be bank conflicts with registers?
UPDATE Wow I really appreciate the two answers from Tibbit and Grizzly. It seems that I can only give a green check mark to one answer though. I am newish to stack overflow. I guess I have to pick one answer as the best. Can I do something to say thank you to the answer I don't give a green check to?