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6 VOTE

Status Not under consideration

Workspace Decision Optimization CPLEX & For Watson Studio

Created by Guest

Created on Oct 23, 2020

Cplex.solveFixed() for OPL Script

Is there an equivalent of Cplex.SolveFixed() for OPL Script ?

I'm looking for dual costs of a MILP.

So I'd like to

1) solve it to get the solution.

2) solve the corresponding LP with fixed integer variables

3) get dual costs

I don't know in advance the names and dimensions of the integer variables in my "slave" model.

(the "master" model with the main fct is intented to work with several types of "slave" models).

So it would be ok if there exists some kind of model.getAllIntVars() fct. But I don't think it is the case.

A pity that this solveFixed() is available in Concert Technology but not in OPL Script...

See also https://www.ibm.com/developerworks/community/forums/html/topic?id=f10bca51-9c9b-4a50-a200-c911c5ecede6

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