Hello Matthias, Thanks for that tip. I have the identical graphics card and had the default set, so i just changed it to 700 as you suggest.
How do you arrive at that figure? On Tue, 17 Jan 2017 at 06:44 Matthias Bodenbinder <[email protected]> wrote: > 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 > [email protected] > > ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
