Scheduling problem with capacity constraints

GAMS
1

Dear all,

I am developing a Job Shop Scheduling Model based on the example http://amsterdamoptimization.com/models/blog/ft10.gms

The two “NoOverlap” equations make sure that each machine is used by only one job at a time. I was now trying to relax it and allow e.g. two jobs on one machine at the same time (to simulate parallel machines). I added a capacity parameter for the machines and tried to modify the equations.

Though, I couldn’t think of any successful solution. Is it possible to introduce such capacity conditions into that model at all?

Thanks for advices,
René

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2

If you need help send me message to lagas12@gmail.com
Le 19 mars 2015 16:29, “René Schönemann” a écrit :

Dear all,

I am developing a Job Shop Scheduling Model based on the example http://amsterdamoptimization.com/models/blog/ft10.gms

The two “NoOverlap” equations make sure that each machine is used by only one job at a time. I was now trying to relax it and allow e.g. two jobs on one machine at the same time (to simulate parallel machines). I added a capacity parameter for the machines and tried to modify the equations.

Though, I couldn’t think of any successful solution. Is it possible to introduce such capacity conditions into that model at all?

Thanks for advices,
René

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