Yanda Jiang

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Posts

Recent activity by Yanda Jiang Recent activity Votes

  • numeric issue

    Awaiting user input

      Dear Sir/Madam,     I encountered a severe numerical issue in one case. The code and data are all in the folder below. Could you please shed me some light on the underlying cause of this problem?...

    Yanda Jiang Edited 2 followers 1 comment 0 votes

  • how to generate .mps file if using GAMS with gurobi solver?

    Answered

    Dear Sir/Madam,   I am currently using GAMS with the Gurobi solver but haven't been able to find a way to generate an .mps file. I need this file to investigate the cause of ill-condi...

    Yanda Jiang 2 followers 12 comments 0 votes

  • suboptimal

    Answered

    Hi guys, I am curious when gurobi says the result is suboptimal before crossover, what does it mean? I know the interior point must be suboptimal, since it is not on vertices. However, does gurobi ...

    Yanda Jiang 2 followers 5 comments 0 votes

  • how to reduce the factor NZ efficiently?

    Answered

    Dear all, I’ve encountered an issue while using barrier method in Gurobi to solve my LP problem: the factor NZ is very large, even larger than my server's memory capacity. Do you have any suggestio...

    Yanda Jiang 2 followers 2 comments 0 votes