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Hello

Oh, it works, indeed, because a constraint min days with 0% and not consecutive is equal to no constraint.

I think you said at some point that if 3 activities are placed in that restriction (min days, 0%, not consecutive), by default FET will place a maximum of 2 on the same day. But now you are saying that "min days, 0%, not consecutive = no constraint" so I am lost

Hello

I attach you a fet file regarding 5 courses.

This file has the least valid constraints, such as min days between same acts (by general rule, a subject cannot be taught the same day more than 2 hours), Students max gaps per week, Students set min hours daily and Teacher not available.

I started trying activating 1C acts and it works. Added 2C, it works. So on and so forth, when I activate 5C it stucks at 121/122 acts. If I deactivate 2C (and keep active 1C,3C,4C,5C), it works.

I tried deactivating one course at a time, and it works. I tried some pair of courses, but I cannot understand what's going on (maybe I did not found the bug).

It is very strange, I don't know why 5 courses don't work - but deactivating one of them it works.

Thank you!!

Thank you! I will take a look

Where is the source code for this window? Maybe I can lend a hand

Hello

I want to post a small design request.

In the multiple generation window (Ctrl + H), the first tab has some misaligned elements, that is:

"Current timetable... Max placed activities..." string is aligned a bit to the right.

"Pause/Restart" buttons are aligned a bit to the center of the window (both horizontal and vertical distances are closer to the center. In the picture below, only horizontal distance is shown).

Picture:

You cannot view this attachment.

You can see it better by alternating with mousewheel when doing multiple generation. I tested with 8 threads and it seems it only affects the first tab.

Thank you!

Hello

Which constraint is more performant?:

Max gaps per day for a teacher = 0

or

Max gaps per week for a teacher = 0

Thank you!!

In the specified interval the teacher has activities at most MD days per week.

Ohhh now I see. We select the interval which the teacher can teach at most MD days per week. Thank you Liviu!!

It should be the same if we rephrase it as: "This teacher can only teach [6,inf) twice a week" (ISH: 6º, IEH: End of the day and MD:2). But this also does not work

I am not getting it right.

My thought is:

If I set ISH: 4º, IEH: End of the day and MD: 1 it means "This teacher can only teach [4,inf) once a week". I believe this implies that rest of the days are not constrained, so he can freely teach other days.

What am I getting wrong?

Consider teacher interval max days per week

I don't understand how it works because if I try with:

You cannot view this attachment.

It cannot place all of his activities.

What should be the parameters?

Hello

I have a teacher than can teach Mon, Tue and Wed from hours 4 to 9.

But this teacher can only teach one of these days starting from hour 4.

The other days can teach from 6 (included) to 9.

It does not matter which day he can teach at hours 4 and 5 (if it is necessary, maybe FET finds teaching later better). It cannot start teaching at hour 4 all days except (maybe) one.

Is there an easy way to do it?

Thank you!!

Oh I understand. This constraint only affects to hours selected, not him available times. Thank you!

Like this?:

You cannot view this attachment.

Hello

I have a teacher who can teach Mondays 1 to 4 and Fridays 1 to 2 (6 total hours).

However, he can use hours 3 and 4 of Mondays and teach them on Fridays 3 and 4, but Mondays only hours 1 and 2.

I tried to mark its available times Mon/Fri 1 to 4, but how do I tell FET to consider either hours 3 and 4 only one day, but not both? So it can freely choose what day he stays longer.

Thank you!!

Hello

I don't think the developers want to change the behaviour of the windows. It may be OS dependent.

See @Liviu Lalescu 's answer here:

https://lalescu.ro/liviu/fet/forum/index.php?topic=5498.msg30347#msg30347