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Update POEM_094.md
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robfalck authored May 16, 2024
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Expand Up @@ -7,9 +7,9 @@ Associated implementation PR: N/A.

Status:

- [x] Active
- [ ] Active
- [ ] Requesting decision
- [ ] Accepted
- [x] Accepted
- [ ] Rejected
- [ ] Integrated

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- `success`: Flag that is `True` if the optimization was successful.
- `message`: The driver-specific exit message.
- `model_evals`: The number of executions of model.solve_nonlinear()
- `model_time`: Time spent evaluating model.solve_nonlinear()
- `deriv_evals`: The number of executions of compute_totals.
- `deriv_time`: Time spent executing compute_totals.

`DriverResults` will contain an attribute/property `success` that is a boolean indicating whether the driver successfully ended. The meaning of this flag will vary from driver to driver (and optimizer to optmizer). For instance, SLSQP has a rather straight-forward success criteria, while SNOPT has multiple inform results that might indicate success.

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