That is not the case. Workcenters have different schedules. Some are
open when others are closed. Can you tell me more about pre-emptive
scheduling and what that involves? How would you approach fixing this
issue?
Chris vanBuskirk wrote:
In my job shop model a task is assigned to a workcenter and
that workcenter is only available for certain hours: ex:
9:00 A.M. to 5:00 P.M.
If you are lucky, then when _ANY_ workcenter shuts down, then _ALL_
workcenters shut down. In other words, "no one but the night watchman is
working at night". In that case, your conversion from actual time to finite
integers can simply make the nonactive periods disappear from your model of
the problem.
That is to say, if 4:59 PM on Monday corresponds to timeslot number #1389 in
your finite domain encoding, then 9:00 AM on Tue might correspond to
timeslot #1390.
If not, then I think you will need "pre-emptive" scheduling techniques (and
woe is you ;).
--
[EMAIL PROTECTED]
Vanderbilt University
Nashville, TN USA
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