Il dom, dic 15, 2013 at 8:27 , Federico Bruni <f...@inventati.org> ha
scritto:
Il dom, dic 15, 2013 at 12:07 , Tony Arnold
<tony.arn...@manchester.ac.uk> ha scritto:
I tried this
cd /usr/lib/x86_64-linux-gnu
sudo ln -s ../beignet/libcl.so libOpenCL.so
Running "darktable -d opencl" gives:
[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] discarding device 0 `Intel HD Graphics Family' due to
insufficient global memory (0MB).
[opencl_init] no suitable devices found.
[opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
[opencl_init] initial status of opencl enabled flag is OFF.
Which looks promising. I don't know what 'global memory' refers to
though. I guess this could either be graphics card memory or
something
in DT.
Thank you, that's the right symlink. I'm almost there:
[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] discarding device 0 `Intel HD Graphics Family' due to
insufficient global memory (128MB).
[opencl_init] no suitable devices found.
[opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
[opencl_init] initial status of opencl enabled flag is OFF.
But the memory available should be 256MB:
$ lspci -v -s 00:02.0
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
processor Graphics Controller (rev 09) (prog-if 00 [VGA controller])
Subsystem: Dell Device 058b
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
Memory at c0000000 (64-bit, prefetchable) [size=256M]
I/O ports at 2000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915
Anyway, it seems that even 256M wouldn't be enough, as Tobias wrote in
this thread:
$ 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] opencl library 'libOpenCL' found on your system and loaded
[opencl_init] found 1 platform
[opencl_init] found 1 device
[opencl_init] discarding device 0 `Intel HD Graphics Family' due to
insufficient global memory (128MB).
[opencl_init] no suitable devices found.
[opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
[opencl_init] initial status of opencl enabled flag is OFF.
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