Xianbang Chen

Hi Riley, I’m using a Julia package where JuMP handles the modeling. It seems JuMP doesn’t support SolutionNumber, but it’s helpful to know that Gurobi does—I’ll try using that feature when I work ...

Hi Riley, Thank you for your help. Yes, I read the files and tried a few things. Based on my experience, SolutionNumber doesn’t seem to work in JuMP. If I set SolutionNumber before optimize!, the m...

Below is a demo code. How to make ``value.(x)`` always output ``sol3``? using JuMP, Gurobi, MathOptInterfaceconst MOI = MathOptInterfacen = 5;capacity = 10.0;profit = [5.0, 3.0, 3.0, 7.0, 4.0];we...

Since you are already using version 9.x.x, this means that your license is valid for all 9.x.x versions. There is no need to update your license unless it is expired. Thank you very much. I love ...

Thanks for your suggestions! You should also think about the MIPGap you want to achieve. Are you really looking for the perfect solution or would a MIPGap of, e.g., 1% be already enough? Yes, I s...

If you let the tuning tool run for, e.g., 1-2 days, then it should be enough and it is very likely possible that no further fine tuning is required. If you have only a limited amount of time, th...

BTW, I tried to use a MathJax rather than image to represent the model. But the Latex code for the model is somehow complicated. So I merely replace it with a clearer image. I hope this could impro...

Yes, please have a look at Posting to the Community Forum. Thanks for this. I will adjust my way for posting a good question. Did you try Gurobi's parameter tuning tool? Not yet, but I just rea...

Hi Jaromił, I have attached the mps file on https://www.filemail.com/d/kluiopckxswcvir  Could you share any suggestions with me?

Hi, is it possible to upload a LP file? Seems only image is allowed.