jan chi
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Activity overview
Latest activity by jan chi-
jan chi commented,
My company is considering purchasing Gurobi as our solver because the efficiency of IPOPT may not be satisfactory for us. Therefore, I need to make some comparisons. Please allow me to ask some que...
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jan chi commented,
Thank you for your reply. I will try the suggestions you provided. I am quite new to optimization problems, and your response has taught me a lot. If I prefer to get a local solution under large-sc...
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jan chi commented,
Hi Riley, I converted my code from an IPOPT + Pyomo format to a GurobiPy format, and it returned that my model is infeasible. Due to numerical issues indicated in the log, I scaled down large numbe...
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jan chi commented,
In the above formula, all uppercase variables are related to decision variables, while all lowercase variables are constants. I am willing to provide more information if needed. Any help would be g...
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jan chi created a post,
modeling a complex probelm using gurobi api
AnsweredI have a non linear problem to optimize, the math formulation is below. I used IPOPT with Pyomo to solve my problem, but the time overhead was huge, so I tried to switch to the Gurobi API. Her...