Hello Horst, I guess you have an opencl memory issue.
Your log says: ... [opencl_nlmeans] couldn't enqueue kernel! -4 [default_process_tiling_opencl_ptp] couldn't run process_cl() for module 'nlmeans' in tiling mode: 0 [opencl_pixelpipe] failed to run module 'nlmeans'. fall back to cpu path ... I had a similar problem in the beginning and asked for help here in the group. The issue for me was solved by adding/changing the following parameter in darktablerc: opencl_memory_headroom=700 The default value is 300. But this is too small for my GeForce GTX 750 Ti. I gave the benchmark a try. With opencl_memory_headroom=700 I get: pixel pipeline processing took 10,516 secs (20,128 CPU) With opencl_memory_headroom=300 I get: pixel pipeline processing took 19,839 secs (92,520 CPU) Big difference. Matthias ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
