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
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