I got it working by reading the thread Ulrich pointed out:
http://sourceforge.net/p/darktable/mailman/darktable-users/thread/[email protected]/
It took some time to read it but it's working perfectly now [?]
Bye
2014-08-30 13:12 GMT+02:00 parafin <[email protected]>:
> This looks almost completely wrong - all symlinks point to i386 (32
> bit) version of library, no wonder 64bit application (darktable) can't
> load libOpenCL.so.
>
> On Sat, 30 Aug 2014 12:55:45 +0200
> Victor L <[email protected]> wrote:
>
> > I added 3 symlinks:
> >
> > $ sudo find / -iname libOpenCL.so -exec ls -l {} \;
> > lrwxrwxrwx 1 root root 45 août 30 12:51
> > /usr/lib/x86_64-linux-gnu/libOpenCL.so ->
> > /usr/lib/i386-linux-gnu/libnvidia-opencl.so.1
> > lrwxrwxrwx 1 root root 45 août 30 12:48 /usr/lib/libOpenCL.so ->
> > /usr/lib/i386-linux-gnu/libnvidia-opencl.so.1
> > lrwxrwxrwx 1 root root 45 août 30 12:51
> > /usr/lib/i386-linux-gnu/libOpenCL.so ->
> > /usr/lib/i386-linux-gnu/libnvidia-opencl.so.1
> >
> > Unfortunately it doesn't help, and darktable doesn't give much
> information
> > about where it looks for libOpenCL!
> >
> > [opencl_init] trying to load opencl library: '<system default>'
> > [opencl_init] could not find opencl runtime library 'libOpenCL'
> >
> > Bye
> >
> >
> > 2014-08-30 0:04 GMT+02:00 Tony Moore <[email protected]>:
> >
> > > it might be looking for libOpenCL.so. Try adding a link from
> libOpenCL.so.1
> > >
> > > tony
> > >
> > >
> > >
> > > On Fri, Aug 29, 2014 at 2:23 PM, Victor L <[email protected]>
> > > wrote:
> > >
> > >> Hello,
> > >>
> > >> OpenCL was previously working without having anything to do but after
> > >> installing the Nvidia CUDA toolkit I can't get it working again.
> > >>
> > >> The driver when it was working was 331.38 (I still have some
> > >> cached_kernels_for_GeForceGTX770). I'm on Ubuntu 14.04
> > >>
> > >> My graphic card is a GeForce GTX 770, I kept the drivers version at
> 331.38
> > >>
> > >> ii nvidia-331
> > >> 331.38-0ubuntu7.1 amd64
> NVIDIA
> > >> binary driver - version 331.38
> > >> ii nvidia-libopencl1-331
> > >> 331.38-0ubuntu7.1 amd64
> NVIDIA
> > >> OpenCL Driver and ICD Loader library
> > >> ii nvidia-opencl-icd-331
> > >> 331.38-0ubuntu7.1 amd64
> NVIDIA
> > >> OpenCL ICD
> > >> ii nvidia-prime
> > >> 0.6.2 amd64
> Tools to
> > >> enable NVIDIA's Prime
> > >> ii nvidia-settings
> > >> 331.20-0ubuntu8 amd64 Tool
> for
> > >> configuring the NVIDIA graphics driver
> > >>
> > >> $ sudo find / -iname libopencl*
> > >> /usr/lib/x86_64-linux-gnu/libOpenCL.so.1.0
> > >> /usr/lib/x86_64-linux-gnu/libOpenCL.so.1
> > >> /usr/lib/x86_64-linux-gnu/libOpenCL.so.1.0.0
> > >> /usr/lib/i386-linux-gnu/libOpenCL.so.1.0
> > >> /usr/lib/i386-linux-gnu/libOpenCL.so.1
> > >> /usr/lib/i386-linux-gnu/libOpenCL.so.1.0.0
> > >>
> > >> $ cat /etc/OpenCL/vendors/nvidia.icd
> > >> libnvidia-opencl.so.1
> > >>
> > >> $ darktable -d opencl
> > >> [opencl_init] opencl related configuration options:
> > >> [opencl_init]
> > >> [opencl_init] opencl: 1
> > >> [opencl_init] opencl_library: ''
> > >> [opencl_init] opencl_memory_requirement: 768
> > >> [opencl_init] opencl_memory_headroom: 300
> > >> [opencl_init] opencl_device_priority: '*/!0,*/*/*'
> > >> [opencl_init] opencl_size_roundup: 16
> > >> [opencl_init] opencl_async_pixelpipe: 0
> > >> [opencl_init] opencl_synch_cache: 0
> > >> [opencl_init] opencl_number_event_handles: 25
> > >> [opencl_init] opencl_micro_nap: 1000
> > >> [opencl_init] opencl_use_pinned_memory: 0
> > >> [opencl_init] opencl_use_cpu_devices: 0
> > >> [opencl_init] opencl_avoid_atomics: 0
> > >> [opencl_init] opencl_omit_whitebalance: 0
> > >> [opencl_init]
> > >> *[opencl_init] trying to load opencl library: '<system default>'*
> > >> [opencl_init] could not find opencl runtime library 'libOpenCL'
> > >> [opencl_init] no working opencl library found. Continue with opencl
> > >> disabled
> > >> [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
> > >> [opencl_init] initial status of opencl enabled flag is OFF.
> > >>
> > >> How can I specify the path for the OpenCL library ?
> > >> Any help is appreciated!
> > >>
> > >> Bye
> > >>
> > >>
> > >>
> > >>
> ------------------------------------------------------------------------------
> > >> Slashdot TV.
> > >> Video for Nerds. Stuff that matters.
> > >> http://tv.slashdot.org/
> > >> _______________________________________________
> > >> Darktable-users mailing list
> > >> [email protected]
> > >> https://lists.sourceforge.net/lists/listinfo/darktable-users
> > >>
> > >>
> > >
> > >
> > > --
> > > Tony Moore
> > > [email protected]
> > >
>
>
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