Install nvidia-opencl-icd-331 (or whatever your version is). You can also
specify it in .config/darktable/darktablerc, look for opencl_library. Did
not help me, though, see previous messages in this thread.
On 24 Jul 2014 13:06, "J. Paul Bissonnette" <[email protected]> wrote:
> On Thu, 24 Jul 2014 12:16:53 +0200
> KOVÁCS István <[email protected]> wrote:
>
> > You can diagnose the cause this by launching from the command-line
> > with darktable -d opencl
> >
> > It'll give you output like shown earlier.
> >
>
> Here is my output
>
> jpb@maple:~$ 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.
>
>
> The opencl runtime library is not found. Any idea where it is found? I
> thought that was part of the nvidia installation.
>
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