On Sat, Nov 2, 2013 at 11:13 PM, Ulrich Pegelow <[email protected]
> wrote:
> Hi,
>
> I just added a config option opencl_use_cpu_devices to git master.
> Defaults to FALSE but can be set to TRUE if you want to give
> OpenCL-on-CPU a try.
>
nice, thanks for that :) curious to see when if at all the cpu opencl code
path will beat our own code :)
j.
>
> Here on my rig (Intel i7-2600 CPU @ 3.40GHz, AMD OpenCL driver) revealed
> the following benchmark with a moderately complex history stack:
>
> darktable's hand-optimized code: 0.6 seconds
> OpenCL-on-CPU: 2.0 seconds
>
> YMMV
>
> Ulrich
>
>
> Am 02.11.2013 04:47, schrieb Hrivnak, Michael:
> > Looking at the new Intel Haswell processors, it seems that it's new AVX2
> > extension can be particularly helpful for graphics processing. For
> example:
> >
> > http://www.phoronix.com/scan.php?page=article&item=intel_core_avx2&num=2
> >
> > One option is to run gentoo and compile everything with the extensions
> > enabled.
> >
> > Aside from that, is anyone compiling your own darktable on a debian or
> > rpm-based distribution to take advantage of extensions like these?
> > Please share details. Which of the libraries that darktable depends on
> > would be most advantageous to also compile with extensions?
> >
> > I run Ubuntu and have gone so far as to compile darktable from git for
> > debugging purposes, but I haven't also compiled any of its dependencies.
> >
> > Thanks,
> > Michael
> >
> >
> >
> ------------------------------------------------------------------------------
> > Android is increasing in popularity, but the open development platform
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> > developers love is also attractive to malware creators. Download this
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> >
> >
> >
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>
>
> --
> *Ulrich Pegelow* · Benrodestraße 76 · 40597 Düsseldorf
>
>
> ------------------------------------------------------------------------------
> Android is increasing in popularity, but the open development platform that
> developers love is also attractive to malware creators. Download this white
> paper to learn more about secure code signing practices that can help keep
> Android apps secure.
> http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk
> _______________________________________________
> Darktable-users mailing list
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>
------------------------------------------------------------------------------
Android is increasing in popularity, but the open development platform that
developers love is also attractive to malware creators. Download this white
paper to learn more about secure code signing practices that can help keep
Android apps secure.
http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk
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