<div dir="ltr">Hi guys,<div><br></div><div>My Objective Value Return by Program (the inputs are variables) and there is no objective function in my case and I use ADOL-C to calculate the derivative automatically.</div><div>
<br></div><div>Problem is I found the IPOPT is not work in my case. It treats the objective function as constant value. Namely,</div><div><br></div><div>obj_value = run_program(x[0]....x[10])</div><div>is equal to </div><div>
obj_value = CONSTANT</div><div><br></div><div>Is there any methods to solve this problem?<br clear="all"><div><br></div>-- <br><div dir="ltr"><div>Best regards,<br> <br>Zhaori</div></div>
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