Error when running Gurobi with GAMS in MacOS

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Demian Presser

2022年09月15日 20:12

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Hi

I'm trying to run MIQCP models in GAMS under macOS system and getting weird error.

Gurobi           40.2.0 6cf3fb9c Sep 1, 2022           DEG x86 64bit/Mac OS X 

Gurobi link license.
Set parameter OutputFlag to value 1
Gurobi library version 9.5.2
Reading parameter(s) from
>>  nonconvex 2
>>  threads 0
Finished reading from 
Set parameter MIPGapAbs to value 0
Set parameter NonConvex to value 2
Set parameter Threads to value 8
--- GMO setup time: 9.51
Set parameter QCPDual to value 1
Assertion failed: (NUMNZ == gmoNZ64(Cptr->Gptr)), function createlp, file grbdef.c, line 583.

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• 正式なコメント

  

  Simranjit Kaur

  • Gurobi Staff

  2025年11月16日 23:28

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum, or try Gurobot, our chatbot interface offering instant, expert-level support.
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  Jaromił Najman

  • Gurobi Staff

  2022年09月16日 07:28

  Hi Demian,

  This looks like a GAMS related issue. Did you try contacting GAMS support about this? If yes, did they confirm that it is a GAMS related issue or do they suspect that it is something related to Gurobi?

  Could you try writing an MPS or LP file out of GAMS, see How do I write an MPS model file from a third party API?, and then solving the model with Gurobi only, i.e., without GAMS. You can use Gurobi's command line tool for this. You will have to download the Gurobi Optimizer first.

  Best regards, 
  Jaromił

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