I don't know if "offscreen" is the right term but here is my problem :
If I run my program on a mac mini with a screen connected on his display port, I can use the GPU device to do my OpenCL computing, but if I run the same program without any screen connected (i.e. from an SSH session) the GPU device is not detected.
Is it a normal issue? How may I use the GPU in this kind of configuration? Indeed I would like to do some OpenCL GPU computation on a server grid (without any screen).
Thanks a lot for any help. I am really stucked.