CUDA apps time out & fail after several seconds - how to work around this?

Question

I\'ve noticed that CUDA applications tend to have a rough maximum run-time of 5-15 seconds before they will fail and exit out. I realize it\'s ideal to not have CUDA applic

Answer 1

It is possible to disable this behavior in Linux. Although the "watchdog" has an obvious purpose, it may cause some very unexpected results when doing extensive computations using shaders / CUDA.

The option can be toggled in your X-configuration (likely /etc/X11/xorg.conf)

Adding: Option "Interactive" "0" to the device section of your GPU does the job.

see CUDA Visual Profiler 'Interactive' X config option?

For details on the config

and

see ftp://download.nvidia.com/XFree86/Linux-x86/270.41.06/README/xconfigoptions.html#Interactive

For a description of the parameter.