[gambit-list] Are faster bignums important?

ben at fuhok.net ben at fuhok.net
Tue Mar 29 22:22:55 EST 2005


What's the downside?  I'm all for increased performance of course.
Fast code is one of the reasons that I'm interested in Gambit.

Regards,

Ben



On Tue, Mar 29, 2005 at 10:07:01PM -0500, Bradley Lucier wrote:
> The bignum performance in Gambit-C 4.0beta is about half that of 
> gmp-4.1.3---if gmp takes time 1, then Gambit generally takes time 2.  
> (GCD, and hence rational arithmetic, in gambit is slower than that at 
> the moment, but ...)  If I substituted a different FFT routine in C for 
> the current FFT routine in Scheme, then much of the difference would be 
> made up---if gmp takes time 1, gambit would take about time 4/3.  This 
> is for integers of size >= about 30,000 bits.
> 
> Is this if interest to anyone?  Is it worth the hack?
> 
> Brad
> 
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