Thread Subject: simulink response optimization

Hi,

While running the simulink response optimization, I am
facing a weird problem. When I try to stop the optimization
from the constraints gui after running it, it works fine.
But the simulations keeps going on, in the simulink, as if
no stop command is given. This is hanging my system again
and again.
PLease help.

The stop command will only cause the optimization to halt at major iteration
steps. This means that if an iteration requires many simulations (say a
patternsearch optimization algorithm) pressing the stop will not immediately
stop the simulations as all the simulations required by the iteration will
be completed. This has been changed in the upcoming R2008b release, where
the simulations and optimziations will stop almost immediately as the stop
is pressed.

For your problem, if you leave the simulations do they eventually terminate.
If not it may be that the optimizaer is choosing "bad" values for the
parameters casuing the model simulation to progress slowly. Adding bounds to
the optimized parameters often helps avoiding this sort of problem.

-Alec

"ahmad " <khanahm@gmail.com> wrote in message
news:g1knf1$e2k$1@fred.mathworks.com...
> Hi,
>
> While running the simulink response optimization, I am
> facing a weird problem. When I try to stop the optimization
> from the constraints gui after running it, it works fine.
> But the simulations keeps going on, in the simulink, as if
> no stop command is given. This is hanging my system again
> and again.
> PLease help.