Decision Optimization

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Different gaps for r2 and c2 produced different result for the same instance

  • 1.  Different gaps for r2 and c2 produced different result for the same instance

    Posted Wed December 07, 2022 02:36 AM
    Edited by System Test Fri January 20, 2023 04:41 PM
    Dear All,
    I run the CPLEX with pycharm (python)  with two scenarios, namely gap by 25 and by 50 for both r2 and c2. However, the downloaded final results as attached are different in some instances. For example (yellow highlighted in both excel files):
    result           p1    c1    p2     c2     p3    c3    p4    c4    lambda
    gap by 25    50    50   100   100    50   50    50    50    Solver is error
    gap by 50    50    50   100   100    50   50    50    50    210
    The correct answer is 210.
    In this case, could anyone let me know what is the root cause and the possible solution, please?
    Thank you in advance.
    Best regards,
    Nicholas
    ​
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