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What does it mean when I see this in the log for a while "Continuing optimization... ", even though I used the parameter: model.Params.OutputFlag = 1, to get detailed information during the optimzi...

What exactly happens when I construct a model, run an optimization, then change the parameters, and run the optimization again? Does the second run learn from the first run and start where it left ...

Is there a difference between suing quicksum() and sum()? would it affect the results? or computational time? or intermediate results if a time limit was added?

I am running a MIP problem. I am using a set of inputs and the code converges and I get 27 feasible solutions (which are optimal matches) that would reduce the objective function, although I was ex...

I used model.x, to save the variables and print them, but this doesn't include variable names.  Also, I need to only print variables>0.  And I have too many variables in the magnitude of 100K, so I...

The example in the documentation that is used for deleting variables, doesn't make a lot of sense to me. What are we saving in error? Does it update the model automatically  Example usage:int first...

Could someone help me pinpoint the issue of the model with this error result: " Gurobi Optimizer version 9.0.3 build v9.0.3rc0 (win64) Optimize a model with 2922876 rows, 3868200 columns and 586115...

I want to save the model construction (constraints, objective function) in a file, because the model construction alone took 5 hours. However, the model is currently infeasible so it will require c...

Trying to track why is the script taking too long, Anyone knows if we can print values while the model is building constructed. 

model.setParam('TimeLimit', 2000) Should I switch to worklimit instead? the code is taking too long? How do I know if the code is actually stuck due to problems in constraints or the computation ti...