I take it you never used CUDA or OpenCL before? Because everything you said is complete bullshit. >Well, multi GPU debugging is terrible. You need different ca

I take it you never used CUDA or OpenCL before? Because everything you said is complete bullshit. >Well, multi GPU debugging is terrible. You need different cards(you can't use the one that powers the display) and there is only one company that counts there, Nvidia. You can run computations on the same card as the display. You can compile to software emulation to debug logic code. >Nvidia is married with Microsoft, and the only intuitive tool you can use for debugging is Windows-only, no mac or Linux support. CUDA works on Windows and Linux, not sure how good the mac support is. >Another problem is that it evolves from graphics and you need to use graphic concepts whether you need it or not. You don't need to understand any graphics concepts. It's parallel programming concepts you need.