Jaromił Najman
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Latest activity by Jaromił Najman
Jaromił Najman commented,
This issue has been addressed in the latest Gurobi version. Which Gurobi version are you using? Could you please update to the latest version 9.5.0? Best regards, Jaromił

Jaromił Najman commented,
1. Is possible to let gurobi parallelize primal heuristics after root lp? My problem often solved at the root node with primal heuristics for a long time and I wonder if I can accelerate the proce...

Jaromił Najman commented,
It is currently not possible to see which heuristic has been used to find a new incumbent. Best regards, Jaromił

Jaromił Najman commented,
Hi Markus, Does your model suffer from any numerical issues? Does the solution point have any constraint violations? Could you post the first and last ~20 lines of the log file when you are solving...

Jaromił Najman commented,
Hi Jose, I don't quite understand ' solve the model on each objective approximation part independently instead of constructing one model with 5 objective approximations. ' since these objectives a...

Jaromił Najman commented,
Hi, Could you please share a model file generated by the gurobi_write function and a LOG file of the run with a TimeLimit of let's say 1800 seconds? Best regards, Jaromił

Jaromił Najman commented,
Thank you for the clarification. I suspect it's because the MSVC_TOOLSET_VERSION is 143 in VS 2022, so the two libraries can not be successfully found. In this case, shall I default any PC with MS...

Jaromił Najman commented,
Hi, Each process has to hold its own Gurobi model. What you could try is constructing the constraints on each process or construct the model in one process together with a given objective and then ...

Jaromił Najman commented,
Hi, Since you did not provide any error message I have to guess that what you mean is an error similar to C:\gurobi950\win64\examples\c++\workforce2_c++.cpp : fatal error C1041: cannot open program...

Jaromił Najman commented,
If I understand correctly, you are trying to construct a quadratic expression, add it to the objective function, and optimize it. You can and should work with the variable objects directly to achie...