Vc branch ready for testing

[Sven Langkamp]

On Thu, Sep 6, 2012 at 7:36 PM, JL VT <pentalis at gmail.com> wrote:

> On Thu, Sep 6, 2012 at 12:16 AM, Sven Langkamp <sven.langkamp at gmail.com>wrote:
>
>> Hi,
>>
>>
>> I have pushed the krita-vc-langkamp branch. It does implement the brush
>> mask computation with vc.
>> To build the branch you need a cpu with SSE2 and Vc 0.61 or git:
>> http://code <http://code.compeng.uni-frankfurt.de/projects/vc>
>> *
>> *
>> *I need to look up *.compeng.uni-frankfurt.de/projects/vc<http://code.compeng.uni-frankfurt.de/projects/vc>
>> AVX should work too, but requires a change in the Krita cmake file.
>>
>> With the branch there is around 15x speedup in the mask benchmark and
>> about 2-3x speedup in the stroke benchmark (for brushes without random and
>> density).
>>
>
> You are a hero.
>
> And I juuust got an i7 Core 2600K Sandy Bridge... When I have this
> installed, it'll be time to compile your branch.
> And play with Krita. This will be good.
>

Don't get too excited. Animtim has reported an actual speedup of 2,
although that was still without AVX so it might get better. I also have a
few more idea how to optimize it further.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/kimageshop/attachments/20120906/32d0ef81/attachment.html>