Oscar Dowson

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Activity overview

Latest activity by Oscar Dowson

  • Oscar Dowson created a post,

    Suggest users set `NonConvex = 2` for non-PSD quadratics

    Answered
    1. Community
    2. Feature Requests

    Currently, non-convex quadratics throw "Q not PSD" if "NonConvex != 2". Until the default value is set to 2, the error message should be modified to suggest users try setting "NonConvex=2". For exa...

    • Oscar Dowson
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  • Oscar Dowson commented,

    1. Community
    2. Other
    3. Different solutions between Gurobi 7.5.2 and 8.1.1

    To follow up, it appears to be an integer feasibility tolerance issue. It seems that v8.1.1 has a tighter tolerance by default, and the "better" solution found by v7.5.2 is actually integer infeasi...

  • Oscar Dowson created a post,

    Different solutions between Gurobi 7.5.2 and 8.1.1

    Answered
    1. Community
    2. Other

    Dear Gurobi, I have a model that now gets a different solution on Gurobi 8.1.1 compared to Gurobi 7.5.2: Here is the MPS file https://gist.github.com/odow/b00626dad00eba2a00bc93e5bcc03647#file-guro...

    • Oscar Dowson
    • 2 followers
    • 2 comments
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