On Fri, Dec 24, 2010 at 2:55 AM, Alan Busby <thebu...@thebusby.com> wrote:

> Hi All,
>
>
> On Fri, Dec 24, 2010 at 4:32 PM, Meikel Brandmeyer <m...@kotka.de> wrote:
>
>  Most interesting is also the relation between the different versions on
>> the given machine. Just the numbers of one algorithm aren't really
>> comparable, I guess. (different machine, different load, different phase of
>> moon, who knows...)
>>
>
> Did the below just for my own amusement on a 64bit linux box, and thought
> it might be interesting to others. The fastest implementation was using
> areduce with 1.3.0-alpha and unchecked ops for 2800ns. Unoptimized C was
> doing 700ns though, and with -O2 it was 400ns. Reminds me why JNI can be so
> valuable sometimes.
>

In order to be fair you probably need to remember to switch your C
arithmetic operations to 64bit longs.

David

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