I made some additional tests.
1) DT is not recovering from the loss of opencl functionality. A restart of DT
does not help. opencl performance is still not available although it is
activated in the GUI. Only a reboot of the computer brings back the opencl
performance.
2) The issue is difficult to reproduce. I did three tests by exporting 140+
images in one shot. The bug occured at different points in time. It occured
once with image 34, once with image 50 and once with image 121.
3) It is not a single image causing the issue. If an image triggers the bug in
one test, I can export the same image after reboot with no issue.
Full output of "darktable -d opencl":
5# /opt/darktable-git/bin/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] device 0 `GeForce GTX 750 Ti' has sm_20 support.
[opencl_init] device 0 `GeForce GTX 750 Ti' supports image sizes of 32768 x
32768
[opencl_init] device 0 `GeForce GTX 750 Ti' allows GPU memory allocations of up
to 511MB
[opencl_init] device 0: GeForce GTX 750 Ti
GLOBAL_MEM_SIZE: 2047MB
MAX_WORK_GROUP_SIZE: 1024
MAX_WORK_ITEM_DIMENSIONS: 3
MAX_WORK_ITEM_SIZES: [ 1024 1024 64 ]
DRIVER_VERSION: 340.46
DEVICE_VERSION: OpenCL 1.1 CUDA
[opencl_init] compiling program `demosaic_ppg.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/demosaic_ppg.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/demosaic_ppg.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `atrous.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/atrous.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/atrous.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `basic.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/basic.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/basic.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `blendop.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/blendop.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/blendop.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `highpass.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/highpass.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/highpass.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `nlmeans.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/nlmeans.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/nlmeans.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `gaussian.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/gaussian.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/gaussian.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `sharpen.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/sharpen.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/sharpen.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `extended.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/extended.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/extended.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `soften.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/soften.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/soften.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `bilateral.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/bilateral.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/bilateral.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `denoiseprofile.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/denoiseprofile.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/denoiseprofile.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] compiling program `bloom.cl' ..
[opencl_load_program] loaded cached binary program from file
`/home/matthias/.cache/darktable/cached_kernels_for_GeForceGTX750Ti/bloom.cl.bin'
[opencl_load_program] successfully loaded program from
`/opt/darktable-git/share/darktable/kernels/bloom.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:
[opencl_init] kernel loading time: 0.3875
[opencl_init] OpenCL successfully initialized.
[opencl_init] here are the internal numbers and names of OpenCL devices
available to darktable:
[opencl_init] 0 'GeForce GTX 750 Ti'
[opencl_init] these are your device priorities:
[opencl_init] image preview export thumbnail
[opencl_init] 0 -1 0 0
[opencl_init] FINALLY: opencl is AVAILABLE on this system.
[opencl_init] initial status of opencl enabled flag is ON.
[opencl_create_kernel] successfully loaded kernel `zero' (0) for device 0
[opencl_create_kernel] successfully loaded kernel `splat' (1) for device 0
[opencl_create_kernel] successfully loaded kernel `blur_line' (2) for device 0
[opencl_create_kernel] successfully loaded kernel `blur_line_z' (3) for device 0
[opencl_create_kernel] successfully loaded kernel `slice' (4) for device 0
[opencl_create_kernel] successfully loaded kernel `slice_to_output' (5) for
device 0
[opencl_create_kernel] successfully loaded kernel `gaussian_column_1c' (6) for
device 0
[opencl_create_kernel] successfully loaded kernel `gaussian_transpose_1c' (7)
for device 0
[opencl_create_kernel] successfully loaded kernel `gaussian_column_4c' (8) for
device 0
[opencl_create_kernel] successfully loaded kernel `gaussian_transpose_4c' (9)
for device 0
[opencl_create_kernel] successfully loaded kernel `interpolation_resample' (10)
for device 0
[opencl_create_kernel] successfully loaded kernel `blendop_mask_Lab' (11) for
device 0
[opencl_create_kernel] successfully loaded kernel `blendop_mask_RAW' (12) for
device 0
[opencl_create_kernel] successfully loaded kernel `blendop_mask_rgb' (13) for
device 0
[opencl_create_kernel] successfully loaded kernel `blendop_Lab' (14) for device 0
[opencl_create_kernel] successfully loaded kernel `blendop_RAW' (15) for device 0
[opencl_create_kernel] successfully loaded kernel `blendop_rgb' (16) for device 0
[opencl_create_kernel] successfully loaded kernel `blendop_copy_alpha' (17) for
device 0
[opencl_create_kernel] successfully loaded kernel `blendop_set_mask' (18) for
device 0
[opencl_create_kernel] successfully loaded kernel `vignette' (19) for device 0
[opencl_create_kernel] successfully loaded kernel `lens_distort_bilinear' (20)
for device 0
[opencl_create_kernel] successfully loaded kernel `lens_distort_bicubic' (21)
for device 0
[opencl_create_kernel] successfully loaded kernel `lens_distort_lanczos2' (22)
for device 0
[opencl_create_kernel] successfully loaded kernel `lens_distort_lanczos3' (23)
for device 0
[opencl_create_kernel] successfully loaded kernel `lens_vignette' (24) for
device 0
[opencl_create_kernel] successfully loaded kernel `splittoning' (25) for device 0
[opencl_create_kernel] successfully loaded kernel `overexposed' (26) for device 0
[opencl_create_kernel] successfully loaded kernel `graduatedndp' (27) for
device 0
[opencl_create_kernel] successfully loaded kernel `graduatedndm' (28) for
device 0
[opencl_create_kernel] successfully loaded kernel `colorbalance' (29) for
device 0
[opencl_create_kernel] successfully loaded kernel `colorzones' (30) for device 0
[opencl_create_kernel] successfully loaded kernel `borders_fill' (31) for
device 0
[opencl_create_kernel] successfully loaded kernel `invert_1f' (32) for device 0
[opencl_create_kernel] successfully loaded kernel `invert_4f' (33) for device 0
[opencl_create_kernel] successfully loaded kernel `velvia' (34) for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_precondition'
(35) for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_init' (36)
for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_dist' (37)
for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_horiz' (38)
for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_vert' (39)
for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_accu' (40)
for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_finish' (41)
for device 0
[opencl_create_kernel] successfully loaded kernel
`denoiseprofile_backtransform' (42) for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_decompose'
(43) for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_synthesize'
(44) for device 0
[opencl_create_kernel] successfully loaded kernel `denoiseprofile_reduce_first'
(45) for device 0
[opencl_create_kernel] successfully loaded kernel
`denoiseprofile_reduce_second' (46) for device 0
[opencl_create_kernel] successfully loaded kernel `lowlight' (47) for device 0
[opencl_create_kernel] successfully loaded kernel `colorize' (48) for device 0
[opencl_create_kernel] successfully loaded kernel `flip' (49) for device 0
[opencl_create_kernel] successfully loaded kernel `clip_rotate_bilinear' (50)
for device 0
[opencl_create_kernel] successfully loaded kernel `clip_rotate_bicubic' (51)
for device 0
[opencl_create_kernel] successfully loaded kernel `clip_rotate_lanczos2' (52)
for device 0
[opencl_create_kernel] successfully loaded kernel `clip_rotate_lanczos3' (53)
for device 0
[opencl_create_kernel] successfully loaded kernel `vibrance' (54) for device 0
[opencl_create_kernel] successfully loaded kernel `levels' (55) for device 0
[opencl_create_kernel] successfully loaded kernel
`clip_and_zoom_demosaic_half_size' (56) for device 0
[opencl_create_kernel] successfully loaded kernel `ppg_demosaic_green' (57) for
device 0
[opencl_create_kernel] successfully loaded kernel `green_equilibration' (58)
for device 0
[opencl_create_kernel] successfully loaded kernel `pre_median' (59) for device 0
[opencl_create_kernel] successfully loaded kernel `ppg_demosaic_green_median'
(60) for device 0
[opencl_create_kernel] successfully loaded kernel `ppg_demosaic_redblue' (61)
for device 0
[opencl_create_kernel] successfully loaded kernel `clip_and_zoom' (62) for
device 0
[opencl_create_kernel] successfully loaded kernel `border_interpolate' (63) for
device 0
[opencl_create_kernel] successfully loaded kernel `color_smoothing' (64) for
device 0
[opencl_create_kernel] successfully loaded kernel `zonesystem' (65) for device 0
[opencl_create_kernel] successfully loaded kernel `highlights_1f' (66) for
device 0
[opencl_create_kernel] successfully loaded kernel `highlights_4f' (67) for
device 0
[opencl_create_kernel] successfully loaded kernel `colorin_unbound' (68) for
device 0
[opencl_create_kernel] successfully loaded kernel `colorin_clipping' (69) for
device 0
[opencl_create_kernel] successfully loaded kernel `eaw_decompose' (70) for
device 0
[opencl_create_kernel] successfully loaded kernel `eaw_synthesize' (71) for
device 0
[opencl_create_kernel] successfully loaded kernel `sharpen_hblur' (72) for
device 0
[opencl_create_kernel] successfully loaded kernel `sharpen_vblur' (73) for
device 0
[opencl_create_kernel] successfully loaded kernel `sharpen_mix' (74) for device 0
[opencl_create_kernel] successfully loaded kernel `whitebalance_4f' (75) for
device 0
[opencl_create_kernel] successfully loaded kernel `whitebalance_1f' (76) for
device 0
[opencl_create_kernel] successfully loaded kernel `relight' (77) for device 0
[opencl_create_kernel] successfully loaded kernel `colormapping_histogram' (78)
for device 0
[opencl_create_kernel] successfully loaded kernel `colormapping_mapping' (79)
for device 0
[opencl_create_kernel] successfully loaded kernel `monochrome_filter' (80) for
device 0
[opencl_create_kernel] successfully loaded kernel `monochrome' (81) for device 0
[opencl_create_kernel] successfully loaded kernel `soften_overexposed' (82) for
device 0
[opencl_create_kernel] successfully loaded kernel `soften_hblur' (83) for
device 0
[opencl_create_kernel] successfully loaded kernel `soften_vblur' (84) for
device 0
[opencl_create_kernel] successfully loaded kernel `soften_mix' (85) for device 0
[opencl_create_kernel] successfully loaded kernel `colorout' (86) for device 0
[opencl_create_kernel] successfully loaded kernel `tonecurve' (87) for device 0
[opencl_create_kernel] successfully loaded kernel `letsgofloat_1ui' (88) for
device 0
[opencl_create_kernel] successfully loaded kernel `colorcorrection' (89) for
device 0
[opencl_create_kernel] successfully loaded kernel `pixelmax_first' (90) for
device 0
[opencl_create_kernel] successfully loaded kernel `pixelmax_second' (91) for
device 0
[opencl_create_kernel] successfully loaded kernel `global_tonemap_reinhard'
(92) for device 0
[opencl_create_kernel] successfully loaded kernel `global_tonemap_drago' (93)
for device 0
[opencl_create_kernel] successfully loaded kernel `global_tonemap_filmic' (94)
for device 0
[opencl_create_kernel] successfully loaded kernel `exposure' (95) for device 0
[opencl_create_kernel] successfully loaded kernel `nlmeans_init' (96) for
device 0
[opencl_create_kernel] successfully loaded kernel `nlmeans_dist' (97) for
device 0
[opencl_create_kernel] successfully loaded kernel `nlmeans_horiz' (98) for
device 0
[opencl_create_kernel] successfully loaded kernel `nlmeans_vert' (99) for
device 0
[opencl_create_kernel] successfully loaded kernel `nlmeans_accu' (100) for
device 0
[opencl_create_kernel] successfully loaded kernel `nlmeans_finish' (101) for
device 0
[opencl_create_kernel] successfully loaded kernel `shadows_highlights_mix'
(102) for device 0
[opencl_create_kernel] successfully loaded kernel `channelmixer' (103) for
device 0
[opencl_create_kernel] successfully loaded kernel `highpass_invert' (104) for
device 0
[opencl_create_kernel] successfully loaded kernel `highpass_hblur' (105) for
device 0
[opencl_create_kernel] successfully loaded kernel `highpass_vblur' (106) for
device 0
[opencl_create_kernel] successfully loaded kernel `highpass_mix' (107) for
device 0
[opencl_create_kernel] successfully loaded kernel `colorcontrast' (108) for
device 0
[opencl_create_kernel] successfully loaded kernel `bloom_threshold' (109) for
device 0
[opencl_create_kernel] successfully loaded kernel `bloom_hblur' (110) for
device 0
[opencl_create_kernel] successfully loaded kernel `bloom_vblur' (111) for
device 0
[opencl_create_kernel] successfully loaded kernel `bloom_mix' (112) for device 0
[opencl_create_kernel] successfully loaded kernel `profilegamma' (113) for
device 0
[opencl_create_kernel] successfully loaded kernel `colisa' (114) for device 0
[opencl_create_kernel] successfully loaded kernel `lowpass_mix' (115) for
device 0
[opencl_create_kernel] successfully loaded kernel `basecurve' (116) for device 0
[lib_load_module] failed to open operation `capture': libwebp.so.4: Kann die
Shared-Object-Datei nicht öffnen: Datei oder Verzeichnis nicht gefunden
Am 18.10.2014 um 12:15 schrieb Matthias Bodenbinder:> Hello Developers,
>
> I just want to share my first opencl experiences with you.
>
> The positiv things to start with:
>
> I have a core i7-2600k. I used to run it with onboard graphics (HD3000). With
> this setup I get a JPG export speed of ca. 1.5 pictures per minute.
> Today I got a Geforce GTX750TI. With opencl enabled I get an export speed of
> 8 JPG/min. This is factor 5 faster than before. In addition to this the CPU
> load drops significantly going from 800% (8 core fully loaded) to 160%. And
> it is not only the export that is faster. Also the GUI feels a lot smoother
> when zooming in and out of images.
>
> Now the negative thing that occured to me:
>
> I exported 149 pictures in one shot. For the first 34 pictures I see the
> above mentioned benefits. But starting with picture 35 I am back to the old
> performance incl. a CPU load of 800%. It looks like opencl stopped working
> after some time. And it is never coming back. The next export is slow again.
>
> darktable -d opencl says:
>
> [opencl_denoiseprofile] couldn't enqueue kernel! -4
> [opencl_pixelpipe] failed to run module 'denoiseprofile'. fall back to cpu
> path
>
>
> What is going on?
>
> Matthias
>
> PS
> Using darktable 1.5+2075~g09042e3 on debian testing.
>
>
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