Hello,
Here are detailled instructions on how to install CUDA : Getting started
guide for
Linux<http://docs.nvidia.com/cuda/cuda-getting-started-guide-for-linux/index.html#runfile-installation>
The download page <https://developer.nvidia.com/cuda-downloads>
If you can compile the CUDA example deviceQuerry and run it then your
installation is ok.
I don't know if OpenCL/darktable make use of CUDA
2014-02-09 10:43 GMT+01:00 [email protected] <[email protected]>:
> Hello,
>
> I'd like to do some benchmarks.
> When I run with opencl enabled (checked "opencl" in the gui and restart)
> I get the nearly the same two values (e.g. for equalizer):
> [dev_process_preview] pixel pipeline processing took 1,005 secs (2,764 CPU)
>
> It doesn't make any difference whether with or without opencl. The stay
> always the same.
> Why are there two values shown?
>
> Here is the output with opencl enabled:
>
> $ darktable -d opencl -d perf
> [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] opencl library 'libOpenCL' found on your system and loaded
> [opencl_init] found 1 platform
> [opencl_init] found 1 device
> [opencl_init] device 0 `GeForce GTX 460' has sm_20 support.
> [opencl_init] device 0 `GeForce GTX 460' supports image sizes of 32768 x
> 32768
> [opencl_init] device 0 `GeForce GTX 460' allows GPU memory allocations
> of up to 255MB
> [opencl_init] device 0: GeForce GTX 460
> GLOBAL_MEM_SIZE: 1023MB
> MAX_WORK_GROUP_SIZE: 1024
> MAX_WORK_ITEM_DIMENSIONS: 3
> MAX_WORK_ITEM_SIZES: [ 1024 1024 64 ]
> DRIVER_VERSION: 319.76
> DEVICE_VERSION: OpenCL 1.1 CUDA
> [...]
>
> It exits well:
> [opencl_summary_statistics] device 'GeForce GTX 460': 37 out of 37
> events were successful and 0 events lost
>
>
> The following OpenCL packages are installed. Perf Logging seems fine.
> The following packages are installed:
>
> nvidia-opencl-common
> nvidia-opencl-icd
> ocl-icd-libopencl1
>
> I don't have a particular Cuda package installed. There are available
> packages:
>
> libcuda1
> libcuda1-i386
> libcudart5.5
> nvidia-cuda-dev
> nvidia-cuda-doc
> nvidia-cuda-gdb
> nvidia-cuda-mps
> nvidia-cuda-toolkit
> python-pycuda
> python-pycuda-dbg
> python-pycuda-doc
> python3-pycuda
> python3-pycuda-dbg
>
> I'd love to get more into.
>
>
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