10.06.2016 Views

eldo_user

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Optimization<br />

Final Diagnostic Conditions<br />

Code<br />

Table 13-3. Optimization Result Status Code (cont.)<br />

Message and meaning<br />

11 The starting point cannot be improved. It may happen that the derivative are<br />

inaccurate or the starting point is already critical.<br />

Check that the objectives to optimize are well-defined at the starting point.<br />

12 The current point cannot be improved. The last QP step was too poor to allow a<br />

sufficient progress of the iterations.<br />

This may indicate that the extracted measures and their derivatives have a low<br />

precision at the current point.<br />

13 Optimization was not successful. Either the objective function or the constraints<br />

seem to be undefined at the starting point. The optimization was abandoned.<br />

The current version of the Eldo optimizer SQP method cannot handle problems<br />

where the objectives returned by Eldo (at the first iterate) have the UNDEF value.<br />

Try to eliminate such cases by using a two-stage approach.<br />

14 Please refer to code 2.<br />

15 Please refer to code 2.<br />

Related Topics<br />

Output from the Optimization Process<br />

Explicitly Declaring Results For Graphical Viewing<br />

Viewing the ASCII Output File<br />

ASCII Optimization File Contents<br />

Monitoring Design Objectives<br />

Normal and Elastic Modes of Termination<br />

658<br />

Eldo® User's Manual, 15.3

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!