Forum Discussion
Is it possible to output wether or not Branch and Bound was used during optimization?
On my current MIP model I'm checking the value of the ALGORITHM attribute to see which algorithm is used. This works fine for smaller parameters, but via setparam("XPRS_verbose", true) I noticed that...
Not sure this helps: you could check attributes like NODES and/or SLPMIPNODES. That would tell how many nodes where used to solve the problem. If 1 node was used the problem was solved at the root (and there was no branching and thus strictly speaking no branch-and-bound). If you have more than 1 node than the solver performed some kind of branching.
This is a bit vague, though. Technically, processing the root is also part of branch-and-bound.
