I was in exactly the same boat as you. There is nothing you can do with regard to getting it working in parallels. There is no way for parallels to recognise your nvidia card so that you can install the necessary drivers for OpenGL to work. You have two options.
1. Wait till mac release on the 11th
2. Install windows using boot camp (this is what I did). It’s a very tricky process on what I can assume is a retina mac book pro, but it works no problem then.
Hope this helps,