I have just started learning CUDA. I have a GTX295 and, due to driver issues in some programs, am still running the 182 driver. While I wait for the 186 driver to be released, I plan to learn on the CUDA 2.1 arch.
After querying the number of available GPUs from cudaGetDeviceCount I was surprised that it returned ‘1’. So I tried running the simpleMultiGPU SDK example where it too only showed one GPU.
WHY ?? :o scary… Has anybody experienced this? Is there something that I maybe missed in all the documentation on how to correctly enable them? Should the multi-gpu setting be enabled in the NVIDA Control Panel, and should I disable Aero?
Any help is much appreciated.