handle_lazy_main_feasible_solution_gurobi

(function from pyomo.contrib.mindtpy.single_tree)

pyomo.contrib.mindtpy.single_tree.handle_lazy_main_feasible_solution_gurobi(cb_m, cb_opt, mindtpy_solver, config)[source]

This function is called during the branch and bound of main MIP problem, more exactly when a feasible solution is found and LazyCallback is activated.

Copy the solution to working model and update upper or lower bound. In LP-NLP, upper or lower bound are updated during solving the main problem.

Parameters:

  • cb_m (Pyomo model) – The MIP main problem.

  • cb_opt (SolverFactory) – The gurobi_persistent solver.

  • mindtpy_solver (object) – The mindtpy solver class.

  • config (ConfigBlock) – The specific configurations for MindtPy.