Suyue Xu

Hello everyone I'm dealing with a MILP model functioning as the subproblem of column and constraint generation algorithms(C&CG).However gurobi struggles to push the BestBd of the model.I've tried t...

Hi gurobi support team I find a wrong solution due to numeric issues with the warning:'Warning: 1 variables dropped from basis'.Here is the log: Set parameter UsernameSet parameter TimeLimit to val...

Hi gurobi support team  I'm now solving a MIP problem with quardratic objectives and linear constraints(along with PWL constraints).The result shows that gurobi quickly narrwo the gap to less than ...

Hi everyone I'm solving a MILP model but I found it's hard for gurobi to find a solution despite the parameter MIPFocus set to 3.Here is the log: Removed 217 duplicated or redundant inequalitiesTra...

I'm designing a iteration algorithm in which I need to solve a MILP model during each iteration.Although the initializaion goes well (with warning 'max constraint violation (2.4386e-06) exceeds tol...

Hi all I'm dealing with the infeasibility of a MILP model and tries to use gurobi_iis to recall the IIS.While the model is infeasible,I fail to compute the IIS.Here's the key message: Explored 1490...

Hi all I'm currently dealing with the infeasibility of a MILP model and I follows the guidance to use the gurobi_feasrelax to help relax the conflicting constraints in MATLAB as follows: ep=1.0;pen...