Dual bound change event type?

问题:

I'm trying to code a simple event handler that does certain things whenever the best primal or dual bounds change (please let me know if I'm reinventing the wheel here and there is already a way of doing this).

For the primal bound I can catch the SCIP_EVENTTYPE_BESTSOLFOUND event, but for dual bound I can't seem to find an appropiate event type (in type_event.h). All the bound-related events I see seem to be for variable bounds.

Am I missing something? Or should I just use something like the SCIP_EVENTTYPE_NODESOLVED event and then manually check for changes on the global bound?

Thanks!

回答1:

Yes, there is no event that you can catch for a change in the dual bound. Checking the dual bound after the SCIP_EVENTTYPE_NODESOLVED event sounds reasonable.