our cpu code path makes heavy use of manually optimized sse intrinsics, so
to support avx you need to rewrite that code in 8-wide (half of it should
be trivial, some other things not so much). or use intel's opencl for cpu
devices. those might be disabled in our code because in the past it didn't
pay off, but this path should make use of avx. worth a re-benchmark i guess.
-jo
On Sat, Nov 2, 2013 at 4:47 PM, Hrivnak, Michael <[email protected]>wrote:
> 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
>
>
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