public override Solution Run()
{
Log($"Assign a path for each train ... ", Utils.Logging.LogEventArgs.MessageType.Info, false);
if (CurrentSolution.AssignPaths())
{
Log($"done.", Utils.Logging.LogEventArgs.MessageType.Success);
}
else
{
Log($"failed.", Utils.Logging.LogEventArgs.MessageType.Error);
}
// Only one iteration for this solver
{
Log(HorizontalLine);
Log($"Loop on trains and assign entry-exit times ... ");
var usedResources = new UsedResourceCollection();
ScheduleTrains(CurrentProblem, CurrentSolution.TrainRunsDic.Values.OrderBy(tr => tr.Train.MinEntryEarliest), usedResources);
var validation = CurrentSolution.Validate();
if (CurrentSolution.IsAdmissible) // Only consider admissible solution
{
Log($"Compute objective function ... ");
CurrentSolution.ComputeObjectiveFunction();
CompareWithBest(CurrentSolution);
}
else
{
Log(validation);
}
}
return(BestSolution);
}
public override void Init(ProblemInstance problem)
{
base.Init(problem);
CurrentSolution.AssignPaths();
OrderedTrainRuns = CurrentSolution.TrainRunsDic.Values.OrderBy(tr => tr.Train.MinEntryEarliest).ThenBy(tr => tr.Train.MaxDelayPenalty).ToArray();
}
public override void Init(ProblemInstance problem)
{
base.Init(problem);
Log($"Assign a path for each train ... ");
CurrentSolution.AssignPaths();
// Schedule every train without considering conflicts in resource occupation
Log($"Schedule each train without considering resource occupation ... ", Utils.Logging.LogEventArgs.MessageType.Info, false);
BasicSchedule(CurrentSolution.TrainRunsDic.Values.OrderBy(tr => tr.Train.MinEntryEarliest).ThenBy(tr => tr.Train.MaxDelayPenalty));
Log("done.", Utils.Logging.LogEventArgs.MessageType.Success);
}