I'm writing a utility which logs system resource usage over time. Specifically I'm interested in measuring the total usage that an ATI graphics card is experiencing, along the lines of GPU-Z, but perhaps not as much detail is needed. I'm mostly interested in comparing GPU load to power used, so I'm after a kind of generic load percentage.
To be clear, my program will not benchmarking or using the GPU. I am interested in getting information on the total load that other applications are putting on the GPU.
Can this be done with OpenCL in a graphic card brand-independent way?
If not, would I start with the Radeon SDK? Would this information be available with an OpenGL or Direct3D call?
Thanks very much,