public void TestBudgetConstraintWithEnumeration(string filename, int budget, int seed)
{
var data = Data.ReadXml(dataPath + filename, "120", "4");
var formulation = ProblemFormulation.UD2NoOverbook;
var comb = new RoomCombinations(data, 25);
Console.WriteLine($"Minimum room is: {comb._minCost}");
var newrooms = CreateRoomsFixedSize(data, 25, 1);
data.SetRoomList(newrooms);
var model = new CCTModel(data, formulation, new CCTModel.MIPModelParameters()
{
UseRoomsAsTypes = true,
UseStageIandII = false,
TuneGurobi = true,
Seed = seed,
});
//model.WriteModel(@"c:\temp\model.lp");
//var budget = comb._minCost+0;
Console.WriteLine($"Budget: {budget}");
model.SetPossibleRoomCombinations(budget);
model.Optimize(900);
var sol = new Solution(data, formulation);
// sol.SetAssignments(model.GetAssignments());
// Console.WriteLine(sol.AnalyzeSolution());
Console.WriteLine($"Room Cost: {model.GetUsedRooms().Sum(kv => kv.Key.Cost*kv.Value)}");
File.AppendAllText(@"c:\temp\enumtest.txt", $"{nameof(TestBudgetConstraintWithEnumeration)};{filename};{seed};{model.Objective}\n");
}
public void PlotNodeSolsWeightedSum(string filename, int maxseats)
{
var data = Data.ReadXml(dataPath + filename, "120", "4");
var formulation = ProblemFormulation.UD2NoOverbook;
var newrooms = CreateRoomsFixedSize(data, 25, 1);
data.SetRoomList(newrooms);
var model = new CCTModel(data, formulation, new CCTModel.MIPModelParameters()
{
UseRoomsAsTypes = true,
UseStageIandII = false,
// TuneGurobi = true,
//TuneGurobi = false,
SaveBoundInformation = true,
//FocusOnlyOnBounds = true,
});
// model.SetObjective(0, 1, 0);
//model.Optimize();
model.SetObjective(4, 1, 0); // Weighted sum
//model.SetObjective(1, 0, 0);
//model.SetBudgetConstraint(maxseats);
model.SetPossibleRoomCombinations(300, 325);
// model.SetBudgetConstraint(325);
// model.SetPossibleRoomCombinations(300);
// model.SetPossibleRoomCombinations(325);
model.Optimize(300);
Console.WriteLine($"Cost: {model.ObjCost} Softobj: {model.ObjSoftCons}");
Console.WriteLine();
Console.WriteLine("time;MWD;CC;softobj;obj;cost;bnd;");
Console.WriteLine(String.Join("\n",
model.bounds.Select(t => $"{t.Item6};{t.Item1};{t.Item2};{t.Item1+t.Item2};{t.Item3};{t.Item5};{t.Item4}")));
Console.WriteLine($"Last bound: {model.ObjBound}");
}