CUDA problem

Hi all

I am using CUDA on opensuse 11.1(64). i installed CUDA 2.1 beta.
i am developing cross product with cuda. when i give 100000 loop on it my screen snowy dotty whatever. i restart X server and there is no change.
do you know any reason and solution

Hi. If you have a very long loop inside a CUDA kernel, the kernel might take a while to execute. If your kernel takes longer than 5 seconds, bad things can happen due to a watchdog timer in the operating system. Most people try to have shorter kernel execution times, even if that means executing the kernel several times instead of just once to accomplish a given task. Fortunately, you have Linux, and there is a way around it. If you disable X server, and then run your program while x server is disabled, you won’t encounter this problem.