Headless CUDA GPU Compute

Is it possible to do headless CUDA GPU compute e.g. without any display being connected?

Is it possible to do headless CUDA GPU compute e.g. without any display being connected?

Yes, this is certainly possible. You may e.g. stop the graphical desktop session as follows:

ubuntu@tegra-ubuntu:~$ sudo service lightdm stop

And subsequently start doing your CUDA GPU compute e.g. as follows:

ubuntu@tegra-ubuntu:~/NVIDIA_CUDA-6.5_Samples/0_Simple/vectorAdd$ ./vectorAdd 
[Vector addition of 50000 elements]
Copy input data from the host memory to the CUDA device
CUDA kernel launch with 196 blocks of 256 threads
Copy output data from the CUDA device to the host memory
Test PASSED
Done