Changing memory clock rate and core clock rates for testing scalability

I saw in the following paper that they are changing the memory clock rate and the core clock rates on an NVIDIA GTX280.
http://download.microsoft.com/download/2/d…20on%20GPUs.pdf

How can I change these parameters?

Thanks.

I saw in the following paper that they are changing the memory clock rate and the core clock rates on an NVIDIA GTX280.
http://download.microsoft.com/download/2/d…20on%20GPUs.pdf

How can I change these parameters?

Thanks.

Does anyone have experience with NVAPI http://developer.nvidia.com/object/nvapi.html for this matter?