cuda the launch timed out and was terminated

Is there any way to disable the video of the Nvidia video card and use it only for CUDA and use the video card’s onboard video in windows 7? I can put sleep the kernel for the video can be update, and after the kernel continue execute?

When i divide the kernel, i use a lot memory for vector in parameters, so i get the message “out of memory”. I try divide the kernel and the image volume, but i do many copys the host memory for device memory and vice versa, so this use a lot time that i think no is good for final time the application.

While i implements the kernels, the QR method for get eigensvalues and eigenvectors is reason for message “cuda the launch timed out and was terminated” when the loop have more than 4 iterations.