Cpython optimization

Olof Bjarnason olof.bjarnason at gmail.com
Fri Oct 23 20:31:58 CEST 2009


>
> >
> > This would be way to speed up things in an image processing algorithm:
> > 1. divide the image into four subimages 2. let each core process each
> > part independently 3. fix&merge (along split lines for example) into a
> > resulting, complete image
>
> Well, don't assume you're the first to think about that.
> I'm sure that performance-conscious image processing software already has
> this kind of tile-based optimizations.
> (actually, if you look at benchmarks of 3D rendering which are regularly
> done by "enthusiast" websites, it shows exactly that)
>
> No I didn't assume I was the first to think about that - I wanted to learn
more about how optimization at all is possible/viable with multi-core
motherboards, when the memory speed is the bottleneck anyway, regardless of
smart caching technologies.

I still have not received a convincing answer :)

Antoine.

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