I wanted to use OpenCL under Windows 7. I've got everything set up (Cuda Toolkit 4), the nvidia card is compatible (GeForce 310M).
I've got a Acer Travelmate 8372 with optimus, and I've got a bios option where I can choose between
Discrete or something similar. But if I choose the discrete option, all of the rendering is done over the intel chip, it's not even listing the nvidia card in the device manager anymore.
In switchable mode I can not find an option to enable the nvidia card explicitely. Hence the CUDA OpenCL Platform is not available.
Also I'm a bit confused about driver versions. Acer provides a Version 18.104.22.16897 (from 2011/11/24), where as NVidia provides the latest driver version 285.62 (from 2011/10/24). Why do these versions differ? Because of Optimus?
I can't install any of the drivers provided by nvidia, the setup is complaining about incompatible hardware.
Edit: As I read optimus itself cannot be disabled, because the Intel chip is the graphics gateway either way. So the question should be: How can I install the Nvidia development driver on my optimus system?