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lpmethod.py
#!/usr/bin/env python3.11 # Copyright 2024, Gurobi Optimization, LLC # Solve a model with different values of the Method parameter; # show which value gives the shortest solve time. import sys import gurobipy as gp from gurobipy import GRB if len(sys.argv) < 2: print("Usage: lpmethod.py filename") sys.exit(0) # Read model m = gp.read(sys.argv[1]) # Solve the model with different values of Method bestTime = m.Params.TimeLimit bestMethod = -1 for i in range(3): m.reset() m.Params.Method = i m.optimize() if m.Status == GRB.OPTIMAL: bestTime = m.Runtime bestMethod = i # Reduce the TimeLimit parameter to save time with other methods m.Params.TimeLimit = bestTime # Report which method was fastest if bestMethod == -1: print("Unable to solve this model") else: print(f"Solved in {bestTime:g} seconds with Method {bestMethod}")