Messages

I'm using the binaries. I just sent you the email.

I'm on Gnu/Linux. I'll send the .fet file by e-mail. Thanks a lot.

Hi, Liviu and Volker. Thank you both for your answers. As I mentioned, this is the first time I'm using FET, i'm adding the constraints gradually, but all activities' and teachers' time restrictions are already added, so it would be a lot of work to redo everything with new days. I believe I'll just follow Volker's suggestion and create hard restrictions on these couples.

If you create the constraint I'll be happy to test it, maybe my sample space is too small but I can try (2 couples on this situation, funnily enough, the other couples want to be allocated at the same shift so they can have the same free shifts).

For context, I'm trying to create a timetable for the public institution in Brazil where I teach, we've both highschool and undergrad courses, ~450 subjects and ~100 teachers. The timetable was done by hand, replicating the previous ones, but as some new restrictions and changes in the courses appeared it has became impossible to do it by hand. I was told that there was no budget for buying a software license for timetabling, someone tried before me. For now FET seems to work in our situation, but I haven't included all the restrictions and rooms/lab specifications yet. Thanks a lot Liviu for this nice software.

Hello, and welcome!

Indeed, you are right about A set of activity tags are not overlapping, is not perfect for you.

Are you using FET in the Official mode? A FET day is a real-life day, having a morning, an afternoon, and a night (on the same FET day)?

Hi, Liviu, thanks a lot for the reply. Yes, official mode and each fet day is a real day with 15 hours. Would your suggestion be something in the line of making each shift a day? I didn't think about that but thinking about it now it looks like it may work.

[A set of activity tags are not overlapping]

Hi, this is the first time i'm using fet and I'm having trouble with a constraint. In my teachers' set i have some married ones. Some of the couples (the ones with small children) ask to never be allocated at the same shift (morning, afternoon or night), the same day is ok, but not the same shift. I believe that if I add a tag, say TeacherA, to the activities of teacher A, and the same for teacher B, so the constraint A set of activity tags are not overlapping will make their schedules not overlap, the individual hours, but not the whole shift. Is it possible in any way?

Thanks in advance.