Originally posted by: pengguo318

hi all,

Currently I am trying to model a parallel machine scheduling problem. In my problem, each job has a position. When sequencing these jobs, the position relationship among the jobs must be considered. I know how to model the standard parallel machine scheduling problem, but I donot know how to model the position constraint in CP optimizer. I hope someone could give me some suggestions. Thanks.

Originally posted by: ol

Hello,

you can use an interval sequence variable, and then express some constraints on this sequence.

For instance, see https://www.ibm.com/support/knowledgecenter/SSSA5P_12.9.0/ilog.odms.ide.help/refcppopl/html/interval_sequence.html#63

Regards,

ol