Cython guidelines

Andreas Mueller amueller at ais.uni-bonn.de
Tue Jul 2 18:00:34 EDT 2013


On 07/02/2013 01:45 AM, Juan Nunez-Iglesias wrote:
> Hi Andy,
>
> On Mon, Jul 1, 2013 at 5:13 PM, Andreas Mueller 
> <amueller at ais.uni-bonn.de <mailto:amueller at ais.uni-bonn.de>> wrote:
>
>     Turns out, I didn't. That explains why they are slower than C. Not
>     sure why I did that...
>
>
> Not really:
> http://jakevdp.github.io/blog/2012/08/08/memoryview-benchmarks/
>
> Cython + pointers is just as fast as memoryviews. And on SLIC at 
> least, you made liberal use of pointers. =) I just tried my hand at 
> memoryviews at Stéfan's request and it's quite a bit slower currently.
>
I did use pointers? Well as far as I remember, I tried to make it fast. 
So yeah, pointers make sense.
Not sure what is wrong, then ... anyhow, speed is acceptable, I guess..
Thanks for giving it a shot!
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