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dual objective value
Posted: Sat Apr 06, 2019 1:03 am
by dunyayigezerken
Is there a way to change dual objective value to reduce duration of solution period in MIP? So, maybe the program starts to search closer to the optimal solution to save time. Check the screenshot, please.
Re: dual objective value
Posted: Tue Apr 09, 2019 8:36 am
by Fred
The answer is either no or I don't understand the question. The (dual) objective is nothing you can just change by some option or so.
If you are not happy with solver performance, there might be useful options that can help to speed things up. For example, if you identified a poor bound as performance bottleneck, it might make sense to tell the solver to focus more on improving the bound (
https://www.gams.com/latest/docs/S_CPLE ... ipemphasis).
To really get target-oriented help from other users for your particular model, you probably have to share your code to allow others to reproduce what you are doing.
Best,
Fred