Wait for a previous asynchronous optimization call to complete.
Calling optimizeasync
returns control to the calling routine immediately. The caller can
perform other computations while optimization proceeds, and can check
on the progress of the optimization by querying various model
attributes. The sync call forces the calling program to wait
until the asynchronous optimization call completes. You must
call sync before the corresponding model object is deleted.
The sync call throws an exception if the optimization itself
ran into any problems. In other words, exceptions thrown by this
method are those that optimize itself would have thrown, had
the original method not been asynchronous.
Note that you need to call sync even if you know that the
asynchronous optimization has already completed.
| void | sync ( ) |