* Fearsome <fearsome.gr...@gmail.com> [02-21-15 15:55]: > Running only DT makes no difference. Nvidia X Server Settings tells me that > in this case I can get the memory usage down to ~270 MB, which agrees > nicely with the default headroom parameter for DT's OpenCL settings. But I > still get the -5 error with the 60D CR2 file. > > (Interestingly, launching Firefox with a few tabs makes GPU memory usage > increase to ~370 MB.) > > So out of curiosity, is there someone out there who successfully edits and > exports 18 MP images with OpenCL activated on a 2 GB Nvidia GPU? This > resolution corresponds to, e.g., a Canon 60D (5198 x 3462 px). > > Fred > > On Sat, Feb 21, 2015 at 9:35 AM, Ulrich Pegelow <ulrich.pege...@tongareva.de > > wrote: > > > Well, the main problem with OpenCL is the fact that there is no way to > > know what amount of GPU memory is factually available at a time. In your > > case I suspect that there is some other application running which > > reserves quite some amount even if it may not use it continuously > > (geeqie has been identified in the past as one candidate). > > > > So you should first try again with as few other applications as possible > > running in parallel. > > > > Ulrich > > > > Am 20.02.2015 um 22:39 schrieb Fearsome: > > > Ulrich, thanks for your suggestions. > > > > > > I've tried various settings for the two parameters you mentioned, but to > > > no avail. For the number of event handles I tried 15 and 5, and for the > > > headroom I tried 500 and 30. My defaults were 25 and 300, respectively. > > > The out of resources error is encountered for the base curve module, in > > > every case. > > > > > > I also tried processing CR2 files from other cameras than the 40D. The > > > export for a file from a 50D went splendid, without any hick-ups in the > > > OpenCL processing. The 50D's resolution is 1 MP less than that of the > > > X100T. The export from a 60D did not go so well, however. The 60D's > > > resolution is larger than that of the X100T by ~4 MP. The error was > > > different this time, giving no reference to a specific module but > > > instead referring to the copy-back: > > > > > > [opencl_pixelpipe (c)] late opencl error detected while copying back to > > > cpu buffer: -5 > > > > > > What does this mean? If the image was possible to transfer to the GPU, > > > it should be possible to transfer _from_ the GPU. > > > > > > From inspection of the X100T opencl export log, it seems like the whole > > > image is transferred in one piece to the GPU and thus tiling is not > > > possible. Then I suspect the whole pipe is redone on the CPU if there is > > > a error from one of the modules on the GPU, which really hurts. Is it > > > possible in the future to apply tiling for the GPU as well to avoid > > > these problems? > > > > > > Any further thoughts on how I can enable error-free offloading to the > > > GPU would be highly appreciated. Or is this just the way it is? > > > > > > /Fred > > > > > > > > > On Fri, Feb 20, 2015 at 6:49 AM, Ulrich Pegelow > > > <ulrich.pege...@tongareva.de <mailto:ulrich.pege...@tongareva.de>> > > wrote: > > > > > > Hi, > > > > > > that's not an X-Trans related error. In fact the specific demosaic > > > algorithms for the X-Trans sensor are not (yet) ported to OpenCL and > > > always run on the CPU. > > > > > > The error you see is code -5: "out of resources". Have a look into > > the > > > user manual for some ideas what to do. You most likely need to tune > > one > > > of the config parameters opencl_number_event_handles or > > > opencl_memory_headroom. > > > > > > Best wishes > > > > > > Ulrich > > > > > > Am 19.02.2015 um 22:51 schrieb Fearsome: > > > > Hi, > > > > > > > > I'm trying to set up OpenCL and I thought I had succeeded. It > > works > > > > nicely for exporting Canon CR2 files but for RAF files from a > > X100T > > > > there are errors in the OpenCL profiling output from DT. The > > export > > > > seems to fall back to the CPU for some, to unknown, reason. A log > > > of the > > > > output is attached. I would appreciate any help in understanding > > > what's > > > > happening and whether I've set up OpenCL properly or not. > > > > > > > > I'm running DT 1.6.2 on Ubuntu 14.10 with a Geforce GTX 960 > > > installed. > > > > > > > > Cheers, > > > > > > > > Fred > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > > with Interactivity, Sharing, Native Excel Exports, App Integration & more > > Get technology previously reserved for billion-dollar corporations, FREE > > > > http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk > > _______________________________________________ > > Darktable-users mailing list > > Darktable-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/darktable-users > >
> ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk > _______________________________________________ > Darktable-users mailing list > Darktable-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/darktable-users openSUSE Tw darktable-1.7.0.1424526774.2f0e20c I have a 1gb NVidia card, GeForce GTS 450, using opencl and regularaly export 24mb files from a Nikon D7100 w/o a problem but I have 36gb ram. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.org openSUSE Community Member facebook/ptilopteri http://wahoo.no-ip.org Photo Album: http://wahoo.no-ip.org/gallery2 Registered Linux User #207535 @ http://linuxcounter.net ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
