Gradient Based Optimizer error

    • desouzadacosta

      Hi All,

      I am trying to start an adjoint optimization cycle using the Gradient Based Optimizer interface.

      However it is echoing the following message in the TUI:

      ** Unable to proceed: No valid observable has been specified

      I pretty much defined the observable as the following image :

    • wcao
      Ansys Employee
      Hi there,nI wonder if you have obtained a solution of gradient via adjoint solver first? Usually you will need to obtain one gradient solution via adjoint solver manually first before using the optimizer. Thanks.nBest,nWeiyun
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