Frederik Schadd

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Latest activity by Frederik Schadd
  • Frederik Schadd commented,

    Sure, we've been trying explicit presolves like this: model_copy.reset() model_copy.setParam("PreSolve", 1)model_copy.setParam("PreSparsify", 1)presolved = model_copy.presolve()relaxed = presolved...

  • Frederik Schadd commented,

    In our case, the presolve removed all columns without providing a solution or objective value. The resulting model object contains no data. Here is an example of this happening: [2024-01-17 10:50:1...

  • Frederik Schadd created a post,

    Sparsify a model without presolve

    Ongoing

    Hello, I'm trying to do an explicit root relaxation for a model based on the answers of this topic: https://support.gurobi.com/hc/en-us/community/posts/360077249052-Root-relaxation-objective-value-...

  • Frederik Schadd commented,

    Hi Matthias, thanks for the response. This approach would print the stats to the stdout which I would then have to read back in again. Is there a more direct of doing this? Also, what are the thres...

  • Frederik Schadd created a post,

    Programmatically determining warnings, e.g. large RHS

    Answered

    Hello, I'm currently facing a model issue that's causing the following warning: Warning: Model contains large rhs While I've figured out the actual model issue already, I'm wondering if there is a ...