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 ( )