column name in bound section not defined

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ce jekl

2022年03月30日 01:52

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What's the meaning of this warning?

What action can trigger this warning?

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  Maliheh Aramon

  • Gurobi Staff

  2022年03月30日 02:41

  Hi, 

  The warning means that there are variables in the BOUNDS section of an MPS file that are not defined. That is, those variables do not appear in the COLUMNS section and are not part of the model. 

  Best regards,

  Maliheh

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  ce jekl

  2022年03月30日 13:22

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  Thank you, but "what kind of action can result in this waning"?

  The mps I read comes from gurobi_model.write("test.mps"). I don't have a clue why this situation happens.

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  Maliheh Aramon

  • Gurobi Staff

  2022年03月31日 02:32

  Yes the warnings are strange if the model is written as an MPS file by Gurobi. Could you please post a minimal, reproducible example? Which Gurobi version are you using? 

  Alternatively, you can share your code that builds the model, if possible, using Dropbox, GoogleDrive, or OneDrive such that we can reproduce the warnings you see.

  Best regards,

  Maliheh

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