Note: nvidia-modprobe is not shipped in the .deb files from the PPA On 26 July 2014 22:53, Ulrich Pegelow <[email protected]> wrote: > Am 26.07.2014 22:31, schrieb KOVÁCS István: >> Hi, >> >> When I run an opencl-related program as root, the devide node changes. >> >> [ROOT USER] >> eagle ~ # modprobe nvidia-331-uvm >> eagle ~ # ls -l /dev|grep nvidia >> crw-rw-rw- 1 root root 195, 0 Jul 26 20:22 nvidia0 >> crw-rw-rw- 1 root root 195, 255 Jul 26 20:22 nvidiactl >> eagle ~ # mknod -m 666 /dev/nvidia-uvm c 249 0 >> eagle ~ # ls -l /dev/ >/tmp/dev-before >> >> -- at this point, running darktable as non-root user results in >> [NORMAL USER] >> [opencl_init] opencl library 'libOpenCL' found on your system and loaded >> [opencl_init] could not get platforms: -1001 >> [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system. >> [opencl_init] initial status of opencl enabled flag is OFF. >> >> [ROOT USER] >> eagle ~ # clinfo >> clinfo: /usr/lib/x86_64-linux-gnu/libOpenCL.so.1: no version >> information available (required by clinfo) >> E: -30 >> >> -- despite this error, darktable can now be run as normal user >> >> -- Comparing devices: it's not a permission issue, rather the device >> major code is modified: > > Interesting point. I googled around and found this one: > > http://developer.download.nvidia.com/compute/cuda/6_0/rel/docs/CUDA_Getting_Started_Linux.pdf > > According to that document the major device number of nvidia-uvm is not > defined to be 249. It's dependent on the specific installation. I guess > the script given on page 15 is the way to go. > > Ulrich > > >> eagle ~ # ls -l /dev/ >/tmp/dev-after >> eagle ~ # diff /tmp/dev-before /tmp/dev-after >> 47c47 >> < crw-rw-rw- 1 root root 249, 0 Jul 26 22:24 nvidia-uvm >> --- >>> crw-rw-rw- 1 root root 250, 0 Jul 26 22:24 nvidia-uvm >> >> Kofa >> > > > ------------------------------------------------------------------------------ > Want fast and easy access to all the code in your enterprise? Index and > search up to 200,000 lines of code with a free copy of Black Duck > Code Sight - the same software that powers the world's largest code > search on Ohloh, the Black Duck Open Hub! Try it now. > http://p.sf.net/sfu/bds > _______________________________________________ > Darktable-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-users
------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
