It would be nice if boinc provided something like the following post-install hint to those who build boinc with the USE=CUDA option for GPU processing: "If you see the message "No usable GPUs found" in /var/log/boinc.log and you have already checked http://boinc.berkeley.edu/wiki/GPU_computing, make sure user 'boinc' is in the video group, e.g., as root do: usermod -Gvideo -a boinc" Reproducible: Always Steps to Reproduce: 1. After carefully checking that I had a CUDA card, correct nVidia drivers, etc., etc., etc., I stumbled upon the URL given above and realized the problem was probably permissions in /dev/nvidia* 2. Simply adding boinc to the video group solves the problem and unleashes a significantly large computing resource to boinc. 3. Feel free to rewrite the hint as you see fit. Although I could not think of any major security problem in the hint, if you find one, then of course feel free to just ignore this request. Otherwise, it could help folks.
To clarify a bit: Good general URL for GPU: http://boinc.berkeley.edu/wiki/GPU_computing But the above doesn't mention the possible permission problem. That I found in the other URL I gave, namely: http://setiathome.berkeley.edu/forum_thread.php?id=58766
This appears to have been fixed. There is now a post-install message informing the user to add boinc to the video group. Can this bug get closed?
Yeah this bug is really fixed, if newly installed it is automatic and it also informs user via elog message.
