Re: Ann: SWI-Prolog 6.5.1

On 08/13/2013 03:07 PM, Nicos Angelopoulos wrote:
> As far as Prism is concerned, the SWI port would be mostly for educational reasons. 
> I don't think that performance wise it can get anywhere near BProlog and Yap without serious
> time investment.

I'm not so sure.  These systems are mainly better at last-call calls and
inlining
a lot of stuff.  There are quite some programs in which they do not
perform much
better than SWI-Prolog.

> SWI and Yap did great work a couple of years back and have to some extend continue 
> this work to provide the same libraries. I think they actually use a common repository for some of them.
> In an ideal word you either want
> 	a. Yap engine and Swi libs
> 	b. a common core API that will separate the libs from the inference engine,
> 	   thus making all libs automatically visible to both systems
> 
> Of course, this is from a user perspective.
> Developers obviously have different priorities, such as viability, finance, prestige and guarding of user-bases among others.

Cooperation is surprisingly complicated, even in the case of Vitor and me
who typically can find a technical compromise fairly quickly :-(

	Cheers --- Jan