Christian Perau

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Recent activity by Christian Perau Recent activity Votes
  • Out of memory though memory is not exceeded

    Awaiting user input

    I am trying to solve a MILP using Bender's decomposition. Since there are many binary decision variables in the master, I need a lot of iterations. In the first iterations everything works just fin...

  • Modelling squared euclidean distance in objective function (C-API)

    Answered

    I want to implement the following objective function in the C-API: min (x²-1) + (y²-1) As far as I see it in the documentation I would need to reformulate the objective function to min x²-2x+1 + y²...

  • ValueError using model.addMConstr since gurobipy 11.0.0

    Answered

    Since updating to gurobipy I receive an ValueError when I try to use addMConstr if I include constraint names. Here is a minimal reproducible example: import gurobipy as gpfrom gurobipy import GRBi...

  • using cmake -H. -Bbuild fails

    Answered

    Hi, I am trying to use CMake to use gurobi in C like described in https://support.gurobi.com/hc/en-us/articles/360039499751-How-do-I-use-CMake-to-build-Gurobi-C-C-projects-. However, when I try to ...

  • Reduce memory usage of gurobipy Model

    Answered

    Hello, I am working with quite large linear models and finding myself with problems regarding memory usage. Building the model I observe a huge increase in memory consumption when I use model.addMV...

  • Gurobipy addMConstr() raises GurobiError: Name too long when passing list of names

    Answered

    I am trying to add constraints via the model.addMConstr() method. For debugging purposes I want to add names to the variables (so I can use them in e.g. a .lp file). However when I try to pass a li...