Not exactly, I am working on 24mp files from a D600 using opencl with a 750ti
and 2gb.
Am 21. Februar 2015 21:52:16 MEZ, schrieb Fearsome <fearsome.gr...@gmail.com>:
>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
>> > >
>> >
>>
>>
>>
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