Yuan Jiawei Yuan Jiawei
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Recent activity by Yuan Jiawei Yuan Jiawei-
C# — How to suppress “Set parameter LicenseID to value …” despite LogToConsole=0 and OutputFlag=0
AnsweredHello Gurobi Support Team,I am trying to run Gurobi from C# with a fully silent console. Even after disabling all logging, I still see a single line printed:Set parameter LicenseID to value 2705893...
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Why is using Indicator Constraints in Gurobi significantly slower than the Big-M method
AnsweredIn my model, I use Gurobi's AddGenConstrIndicator to enforce the following logical constraints: However, I noticed that when using Indicator Constraints, the solver takes significantly longer to f...
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Opposite Signs in Gurobi Dual Variables Output
AnsweredWhen I call Gurobi to output the dual variables, the outputted dual variables are exactly the opposite of the actual dual variables. Could you explain the reason for this, or provide the standard f...
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some problem about adding SOS constraint
AnsweredHi there, Firstly, a binary variable 'DownDepInterval[k, i, r]' is defined and I need to add the following constraints for (int k = 0; k < DownSerNum; k++){ for (int i = 0; i < TotalStaNum - 1; i+...
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How to use a solution from a heuristic algorithm as the initial solution of Gurobi
AnsweredRecently, I know that , if Guribi has a good initial solution, the speed of solving will be accelerated and the result may be better. Therefore, I want to use Genetic algorithm to obtain a be...