Hi, BAB works under the assumption that the order imposed by the constrain() function is strictly monotonic: that means, posting the constraint Cn automatically subsume all constraints from C1 to Cn-1.
However, you can try to use the restart engine (RBS): here you can redefine a so-called master() function so that the master will accumulate all the constraints you want. Best Christian -- Christian Schulte, KTH, web.it.kth.se/~cschulte/ -----Original Message----- From: users-boun...@gecode.org [mailto:users-boun...@gecode.org] On Behalf Of Amina Kemmar Sent: Sunday, January 4, 2015 07:21 PM To: users@gecode.org Subject: Re: [gecode-users] About the search engine BAB? Hi, I will ask the problem differently. We suppose that after generating the first solution S1, a constraint C1 is added throw the function constrain(). Then, after generating an other solution S2, a constrain C2 is added, an so on. When a solution Sn is found, dos gecode use all constraints previously added (C1,C2,...,Cn) to find an other solution? If No, how can i do this? Thank you. Cheers. --- Amina On 01/04/2015 03:05 PM, Christian Schulte wrote: > Hi, > > What do you mean by "consider"? Maybe a restart engine (check MPG) > could be a better fit. > > Cheers > Christian > > -- > Christian Schulte, www.ict.kth.se/~cschulte/ > >> -----Original Message----- >> From: users-boun...@gecode.org [mailto:users-boun...@gecode.org] On >> Behalf Of Amina Kemmar >> Sent: Thursday, January 01, 2015 7:27 PM >> To: users@gecode.org >> Subject: [gecode-users] About the search engine BAB? >> >> Hi everyone, >> >> I'm using the search engine BAB allowing to post dynamically new > constraints >> throw the function "constrain()". Each time a better solution is >> found, I > want to >> consider all the set of constraints added previously by >> "constrain()". How > can I >> do this? >> >> Thank you. >> Amina. >> >> >> _______________________________________________ >> Gecode users mailing list >> users@gecode.org >> https://www.gecode.org/mailman/listinfo/gecode-users _______________________________________________ Gecode users mailing list users@gecode.org https://www.gecode.org/mailman/listinfo/gecode-users _______________________________________________ Gecode users mailing list users@gecode.org https://www.gecode.org/mailman/listinfo/gecode-users
