Gleb Belov

Hi, assume someone implements branch-and-cut... and needs to solve the LP relaxations in different nodes. This means, after solving the LP of one node, we can switch to a very different node (diffe...

Hi, when retrieving duals of linear and quadratic constraints, I noticed that methods GRBgetdblattr(element) interpret the indices as the indices in the subset of only quadratic constraints, or, if...

Hi, when solving a simple quadratic model, Gurobi finishes at root node. Then, trying to retrieve ObjBoundC, we get Unable to retrieve attribute 'ObjBoundC'.Failed to get the best bound. Gurobi err...

For a modeling system like MiniZinc it would be useful to see the list of parameters supported by the solver. There are functions in gurobi.h allowing access to the list and feasible/default values...

Infeasibility reported when solving with 1 thread, but without the thread option, a feasible solution is found in 1 second. Platform: Debian 9.9, i7-4771 Instance: https://www.dropbox.com/s/v8h1obs...