Hi, Core2-Duo E6550 @ 2.33GHz +Nvidia GeForce GTX 650 / 2 GB, driver 361.42, OpenCL 1.2 CUDA, darktable 2.0.6 from PPA. With pinned memory, performance is slightly (about 10%?) worse. There are lines like [opencl_profiling] spent 0,3774 seconds in [Map Buffer] that are only seen in the 'pinned' log. One notable difference after exporting 114 photos: pinned = false gives [opencl_summary_statistics] device 'GeForce GTX 650': 8960 out of 8960 events were successful and 0 events lost
pinned = true gives [opencl_summary_statistics] device 'GeForce GTX 650': 9933 out of 9933 events were successful and 0 events lost as one of the last lines in the output. My opencl-related darktablerc entries: opencl=TRUE opencl_async_pixelpipe=false opencl_avoid_atomics=false opencl_checksum=2684983341 opencl_device_priority=*/!0,*/*/* opencl_library= opencl_memory_headroom=300 opencl_memory_requirement=768 opencl_micro_nap=1000 opencl_number_event_handles=25 opencl_omit_whitebalance= opencl_size_roundup=16 opencl_synch_cache=false opencl_use_cpu_devices=false opencl_use_pinned_memory=false The logs are at: http://tech.kovacs-telekes.org/files/darktable-opencl-pinned-memory/ Thanks, Kofa On 15 September 2016 at 16:16, Ulrich Pegelow <[email protected]> wrote: > Thanks. That's a small advantage for opencl_use_pinned_memory=TRUE. > > Still even with the flag set to TRUE we loose quite some time in the > host_memory->device_memory step. I expect that I can change our code to get > some further improvements there in the next days. > > Ulrich > > > Am 15.09.2016 um 16:10 schrieb Chester: >> >> ULrich: here are my config and the two files: >> >> darktable --version >> this is darktable 2.0.6 >> copyright (c) 2009-2016 johannes hanika >> [email protected] >> >> compile options: >> bit depth is 64 bit >> normal build >> OpenMP support enabled >> OpenCL support enabled >> Lua support enabled, API version 3.0.0 >> Colord support enabled >> gPhoto2 support enabled >> GraphicsMagick support enabled >> >> inxi >> CPU~Quad core Intel Core i7 930 (-HT-MCP-) speed/max~1600/2801 MHz >> Kernel~4.4.0-36-generic x86_64 Up~1:50 Mem~2072.5/20069.5MB >> HDD~3768.8GB(3.6% used) Procs~268 Client~Shell inxi~2.2.35 >> >> inxi -G >> Graphics: Card: NVIDIA GF106 [GeForce GTS 450] >> Display Server: X.Org 1.18.3 drivers: nvidia (unloaded: >> fbdev,vesa,nouveau) >> Resolution: [email protected], [email protected] >> GLX Renderer: GeForce GTS 450/PCIe/SSE2 >> GLX Version: 4.5.0 NVIDIA 361.42 >> > > ____________________________________________________________________________ > darktable user mailing list > to unsubscribe send a mail to [email protected] > ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
