Re: [eclipse-clp-users] Release of ECLiPSe 6.0

Hello,

bad news for you. I have a program which runs 27 seconds slower with eclipse prolog 6...

5.10.145: 57 seconds
6.0.43: 84 seconds

I have attached the pl File.

Start tkeclipse, turn off debug compile in the global settings, compile my file and then start it with "test."

Greetings!

Martin

----- Original Nachricht ----
Von:     Wit Jakuczun <wit.jakuczun_at_gmail.com>
An:      Kish Shen <kisshen_at_cisco.com>
Datum:   03.10.2008 08:29
Betreff: Re: [eclipse-clp-users] Release of ECLiPSe 6.0

> W dniu 2 pa?dziernika 2008 19:56 u?ytkownik Kish Shen
> <kisshen_at_cisco.com> napisa?:
> > Wit Jakuczun wrote:
> >>
> >> On 1 Pa?, 19:47, neng.z..._at_gmail.com wrote:
> >>
> >>> but the CLP(FD) system is slightly slower.
> >>>
> >> Not sligthly but significantly! It stops me
> >> from using a new version of ECLiPSe in
> >> production system.
> >>
> >> There are however few nice features. The one
> >> I most like is source-based debugger.
> >>
> >> Best regards,
> >>   Wit Jakuczun
> >
> > Hi Wit,
> >
> > Can you give me some details? I am surprised that there is significant
> > performance differences between 5.11 and 6.0 -- in almost all the tests
> we
> > have ran 6.0 was slightly faster. The thing that is slower is the
> > compilation time itself -- do you do a lot of compiling?
> >
> Compiling is not important. It is done once during initialisation
> phase of our module.
> We have developed a solver (using CLP) for tariff optimisation task
> (for a telecommunication company). The solver is based mainly on
> element
> constraint but there are also our global constraints specific to the
> problem
> and a lot of binary and real-value variables. The code has approx 2,5K
> lines
> of code divided into a few modules.
> 
> Exemplary timings:
> Version:  5.10    6.0
>               0.87s  1.58s
>               0.13s  0.22s
>               0.13s  0.22s
> 
> The times are averaged and the difference is statistically significant.
> In both cases I used the same data and have not changed any
> compilation flags.
> I used 5.10#127 and 6.0#42 versions of ECLiPSe.
> 
> If you need any more details, please ask.
> 
> Best regards
> -- 
> [ Wit Jakuczun  w.jakuczun_at_wlogsolutions.com ]
> [ WLOG Solutions http://wlogsolutions.com   ]
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