As already discussed, for some optimization methods, it is not natural to have the Hessian computed after optimization, as this must be done separately and takes a lot of time.
On the other hand, when result from optimization are stored, the very most memory goes into the Hessians, which are not always needed.
It hence makes sense to be able to disable storing or computing the Hessian after optimization.
As already discussed, for some optimization methods, it is not natural to have the Hessian computed after optimization, as this must be done separately and takes a lot of time. On the other hand, when result from optimization are stored, the very most memory goes into the Hessians, which are not always needed. It hence makes sense to be able to disable storing or computing the Hessian after optimization.