MATLAB OPTIMIZATION TOOLBOX - RELEASE NOTES Manuel d'utilisateur télécharger pdf (Page 54)

R2009a

13-2

Parallel Gradient Estimation Available in fmincon Interior-Point Algorithm

The fmincon solver's interior-point algorithm can now compute finite differences

in parallel in order to speed the estimation of gradients. For details on how to use this

parallel gradient estimation, see the Parallel Computing for Optimization chapter in the

User's Guide.

Enhanced Exit Messages in Selected Solvers

Solvers print exit messages by default at the end of their runs. The exit messages are

different in R2009a for several solvers, and the messages have been enhanced with new

functionality. The following sections describe the new features and changes. There is

more information in the Exit Flags and Exit Messages section of the User's Guide.

The following solvers have enhanced exit messages:

• fgoalattain

• fmincon

• fminimax

• fminunc

• fseminf

Links to More Information Window

The enhanced exit messages include hyperlinks within their exit messages. These

hyperlinks bring up a window containing further information about the terms used in the

exit messages.

Link for More Detail in Command Window

A <stopping criteria details> hyperlink may appear at the end of an exit

message, depending on the solver and setting of the Display option. This link causes the

solver to print more detail about the exit conditions to the MATLAB Command Window.

New Display Option Values Control Default Detail

There are new values of the Display option to control whether detailed exit messages

appear instead of the default (simpler) messages. The new values are:

• 'final-detailed'

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MATLAB OPTIMIZATION TOOLBOX - RELEASE NOTES Manuel d'utilisateur Page 54