Fei Wang
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Fei Wangさんの最近のアクティビティ-
Fei Wangさんがコメントを作成しました:
Thank you for the answer. But I don't really understand, in my model all variables are continuous, even I added some norm constraints, they are still continuous (no integer variables in my model). ...
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Fei Wangさんがコメントを作成しました:
Hello Simranjit, Yes, my model is convex and continuous. In fact it is a second order cone optimization problem. I am solving this problem in a branch and bound algorithm, and I can always solve th...
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Fei Wangさんが投稿を作成しました:
How to retrieve the dual variable value for a linear constraint in a SOCP problem
回答済みHi, I have a second order cone problem with some linear constraints, I am trying to get the values for the dual variables corresponding to the linear constraints, my parameters for the models are ...
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Fei Wangさんがコメントを作成しました:
Hello, It seems c = m.addConstr(lhs, sense, rhs, name) is no longer supported in the newest version of gurobi. What should I do to add back a constraint in this case?
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Fei Wangさんがコメントを作成しました:
Thanks Simran, It works. However in my code self.r is only 2. So this changes won't save a lot of time, in fact, the majority of the time is spent in adding those SOCP constraints. Constraints as ...
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Fei Wangさんがコメントを作成しました:
Hi Simran, Here is part of the code that’s very expensive. Most of the time is spent on adding the constraints especially the first and second for loops model = gp.Model()model.Params.LogToConsole...
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Fei Wangさんがコメントを作成しました:
I have another question: I found that adding the constraints to the model is the most expensive part of the codeSo it is this command model.addConstr() that is costing 90% of the time Since I am...
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Fei Wangさんがコメントを作成しました:
Thanks! That's the method I am looking for
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Fei Wangさんがコメントを作成しました:
Hi Simran, Thank you very much! It solved my problem. I didn't know the default lower bound is zero,
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Fei Wangさんが投稿を作成しました:
Gurobi seems not able to solve an SOCP problem to optimal
回答済みI have the following second order cone problem as following ()I used model.write("myfile_test.lp") to output the model as following: \ LP format - for model browsing. Use MPS format to capture...