jiaze ma
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Latest activity by jiaze ma-
jiaze ma commented,
Hi Riley, Thanks much for getting back to me! I have developed a simple supply chain model that uses linear programming. To solve this problem, I specified the use of primal simplex. After obtain...
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jiaze ma created a post,
set the initial values of variables to warmstart
AnsweredI use set_start_value function in Gurobi's Julia interface to set initial values for variables before solving the model. I did not see any change in the iteration behavior. To be more specific, I a...
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jiaze ma commented,
Hi, Thanks for your response. "The MIPGap value refers to at least the gap value that Gurobi has to reach before declaring optimality" Does this mean that as long as I set MIPgap>=0.01% (default), ...
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jiaze ma created a post,
About the MIPgap
AnsweredHello: I set the MIPgap to be 1% as follows (using julia):m_l = Model(with_optimizer(Gurobi.Optimizer,MIPGap=1e-2)). However, when I check the log, gurobi solved the problem to within 0.01%.I wish ...
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jiaze ma created a post,
About the memory usage
Awaiting user inputI am running two MIP models using Gurobi, I call them A and B. B is the relaxed problem of A, and B has fewer variables, fewer constraints, fewer nonzeros, and fewer rows than A. Is that possible t...