public Solution Run()
{
var stopwatch = Stopwatch.StartNew();
var model = new CCTModel(data, formulation, MIPmodelParameters);
model.Optimize(TimelimitStageI - Timetotighten);
var userooms = model.GetUsedRooms();
Console.WriteLine($"Used rooms: {userooms.Sum(kv => kv.Value)} over {userooms.Count} ");
Console.WriteLine($"OveruseOnTimeslots: {model.GetOverUseOfRooms()} ");
// model.PenalizeRoomUsedMoreThanOnce(100);
model.PenalizeRoomUsedMoreThanOnce(10, true);
model.SetObjective(0, 0, 0.01);
//model.SetObjective(0, 0, 0);
//model.SetMipHintToCurrent();
model.SetProximityOrigin();
model.SetQualConstraint(model.ObjSoftCons);
model.Fixsol(true);
model.Optimize();
model.Fixsol(false);
// model.Optimize(timetotighten+50,cutoff:500);
model.ModelParameters.AbortSolverOnZeroPenalty = true;
var tighttimer = Stopwatch.StartNew();
model.Optimize(Timetotighten + 300);
tighttimer.Stop();
model.DisplayObjectives();
_solution = new Solution(data, formulation);
_solution.SetAssignments(model.GetAssignments());
//timers
stopwatch.Stop();
tighttimer.Stop();
totalseconds = (int)stopwatch.Elapsed.TotalSeconds;
roomtightseconds = (int)tighttimer.Elapsed.TotalSeconds;
return(_solution);
}
public void Lex_soft_cost_withTimeslot(string filename)
{
var algname = nameof(Lex_soft_cost_withTimeslot);
// formulation.AvailabilityHardConstraint = false;
var data = Data.ReadXml(dataPath + filename, "120", "4");
var newrooms = CreateRoomsFixedSize(data, 25, 5);
data.SetRoomList(newrooms);
var par = new CCTModel.MIPModelParameters()
{
UseStageIandII = false,
UseHallsConditions = true,
UseRoomHallConditions = true,
TuneGurobi = false,
UseRoomsAsTypes = false,
};
var costmodel = new CCTModel(data, ProblemFormulation.MinimizeRoomCost, par);
costmodel.Optimize();
data.SetRoomList(costmodel.GetUsedRooms().Where(kv => kv.Value > 0).Select(kv => kv.Key).ToList());
//var formulation = ProblemFormulation.UD2NoOverbook;
// formulation.AvailabilityHardConstraint = false;
// formulation.OverbookingAllowed = 0.35;
var ModelParameters = new CCTModel.MIPModelParameters()
{
UseStageIandII = false,
TuneGurobi = true,
UseHallsConditions = true,
UseRoomHallConditions = true,
// UseRoomsAsTypes = true,
UseRoomsAsTypes = false,
RoomBoundForEachTimeSlot = true,
};
var model = new CCTModel(data, _problemFormulation, ModelParameters);
model.Optimize(300);
var userooms = model.GetUsedRooms();
Console.WriteLine($"Used rooms: {userooms.Sum(kv => kv.Value)} over {userooms.Count} ");
// model.PenalizeRoomUsedMoreThanOnce(100);
model.PenalizeRoomUsedMoreThanOnce(1, true);
model.SetObjective(0, 0, 0.001);
model.SetProximityOrigin();
model.SetQualConstraint(model.ObjSoftCons);
// model.SetProxConstraint(20);
model.Fixsol(true);
model.Optimize();
model.Fixsol(false);
model.Optimize(900);
model.DisplayObjectives();
var sol = new Solution(data, ProblemFormulation.MinimizeRoomCost);
sol.SetAssignments(model.GetAssignments());
Console.WriteLine(sol.AnalyzeSolution());
File.AppendAllText(@"c:\temp\heuristic.txt", $"{algname};{filename};{model.ObjSoftCons}\n");
}