Let

* 'I'* is the set of machines and

*'P'* is the set of periods. In different periods there are different numbers of jobs to process (let's say 5 jobs for each period). I want to solve this problem for each

* i in I* and

*p in P* in the loop and also obtain the extreme ray. After solving the problem for a particular

*i and p*, when I call extreme ray I am getting extreme rays for all variables while I want extreme rays for that particular

*i and p*.

One possible solution in my mind is to keep variables related to only that

*i and p *in the model and remove (or delete) all other variables from the model.

In cplex module there is a method: model.variables.delete() to delete variables. But it is not working with docplex.

Any alternate or other methods to get rid of the above concern?

Thanks!

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MOHAMMAD SAMIULLAH

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