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Questions tagged [baron]

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How to use ampl.lic in Pyomo

I have the licence of some solvers and I want to use these solvers in Pyomo. The licence file is ampl.lic and my machine is Macbook. I have an executable file for Baron solver which is only for demo ...
hamta's user avatar
  • 77
2 votes
1 answer

Large MINLP problem, searching for solver, tried BARON, ANTIGONE, DICOPT

I am working on a MINLP problem and am searching for a solver that works. I have tried ANTIGONE and receive the following "Termination Status: Infeasible Problem." I also tried DICOPT which ...
Devon Elizabeth's user avatar
5 votes
0 answers

Is there a way to use lazy constraints with Baron?

I am solving a non-linear mixed-integer programme with BARON. The objective function looks like $\big( \sum_i x_i \big) \cdot \big(\prod_i e^{-y_i}\big)$ (binary $x$ and real-valued $y$) and it has ...
Alberto Santini's user avatar
1 vote
1 answer

Model Simulation in PYOMO

I have an optimization model that I have developed within the PYOMO framework and I am unable to solve the model in a reasonable amount of time using the BARON solver. I have been instructed not to ...
GrayLiterature's user avatar
6 votes
1 answer

Linearize a product of an integer variable (not just binary) and a continuous variable?

I have a constraint in my formulation that contains multiplication of an integer variable $y$ and a continuous variable $x$, which is $xy=q$ where $y$ is the number of units in which $q$ gets equally ...
optimizationguy's user avatar
4 votes
1 answer

BARON Error: variables/rows fixed as scaled bounds too close

I am trying to build my model up and keep running into this output from BARON: Clp0019I {x} variables/rows fixed as scaled bounds too close. I checked the BARON ...
GrayLiterature's user avatar
6 votes
3 answers

Academic Licenses of Baron & Knitro

Is there a way to obtain a free BARON or Knitro license? I am doing academic research and I really need these global optimization solvers (Knitro is not necessarily for global optimization, although ...
independentvariable's user avatar