Error: OML Bridge Protocol Error

Khanh Tran Vu
Khanh Tran Vu Altair Community Member
edited September 2022 in Community Q&A

Hello,

I am doing Hyperstudy simulations of Flux and Compose and I get an error from " OML Bridge Protocol Error" .
I would like to know how to improve it.
Please if you could give me a hint.

Thank you very much in advance.

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Answers

  • Diana_38240
    Diana_38240
    Altair Employee
    edited September 2022

    Hello,

    The first thing to investigate is why all the tasks for model_3 (Flux) are failing. If you haven't done it yet, I'd suggest to look at the task_exe files in the run folder. The expression error message you see at the end comes at the Extract task because Write and Execute tasks failed and there are no results.

     

    Hope it helps.

    Diana

     

     

  • Khanh Tran Vu
    Khanh Tran Vu Altair Community Member
    edited September 2022

    Hi Diana M.

    Thank you for your reply,

     

    In my Hyperstudy, The workflow is Model1 --> Model2 --> Compose calculation --> Model3
    Model1 and Model2 after analysis will generate results. And the results will be used to calculate in Compose. The result from Compose is one of the input parameters used for Model3.

    In Model3, the Write is marked red due to the failure in Compose calculation. Due to the error "OML Bridge protocol error ", Compose can not calculate and generate the input parameter for Model3.

    In addition, I already checked running when removing calculations from Compose, input directly input power to 3 models, and both three models worked well.

    I also check to Compose individually and it worked well.

      

     

     

     

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