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Questions - gurobi

How do I add Gurobi constraints and variables from lists of strings in an automated way?

Objective: Add variables and constraints in a loop to a Gurobi model from a list of variables and a list of constraints each of varying lengths where each variable and constraint is stored as a string...
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R.Deilke

python

string

type-conversion

constraints

gurobi

Votes: 0

Answers: 2

Latest Answer

Here is a concise answer to your question but please keep in mind that this is very unsafe and error-prone and should never be used in actual code: import gurobipy as gp m = gp.Model() variables = [&...
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mattmilten

model.update performance in the model

I have a question about performance of the model.update in the gurobipy library. Let's say I have a list of objects which I want to add as a variable to the model, also I want to add a constraint to e...
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Ryszard Eggink

optimization

mathematical-optimization

gurobi

linear-optimization

Votes: 0

Answers: 2

Latest Answer

Yes, it's the usual way to add all the variables first. Note that the model.addVar() method already returns the variable which can directly be used without calling model.update(). Therefore, you don't...
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joni

How can I get values of variables awaiting model update in Gurobi python

I develop a quadratic programming model using Gurobi python API. In terms of objective formulation containing a function associated with decision variable, such as obj = f(x) + g(y), I need to get val...
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Nam-kyoung Lee

python

gurobi

nonlinear-optimization

Votes: 0

Answers: 1

Latest Answer

It's a bit unclear what you are asking for or intending to do. In general, you cannot access the X attribute of variables before optimizing the model because these are the solution values of those var...
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mattmilten

django and gurobi in docker have permission issues

I am trying to create a docker image for Django + Gurobi. Container runs as root by default. Gurobi does not want to run as root since license is issued to non-root user. If switching to non-root, Dj...
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Tims

django

docker

docker-compose

gurobi

Votes: 0

Answers: 1

Latest Answer

By default, commercial software like Gurobi does not let you run inside a Docker container. Please contact Gurobi support at https://support.gurobi.com to discuss alternatives.
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Greg Glockner

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