/// <summary>
/// This method is called after a Checkpoint
/// is restored from but before the run starts up again.
/// You might use this to set up file pointers that were lost, etc.
/// </summary>
public virtual void ResetFromCheckpoint()
{
Output.Restart(); // may throw an exception if there's a bad file
Exchanger.ReinitializeContacts(this);
Evaluator.ReinitializeContacts(this);
}
///// <summary>
///// This will be called to create your evolution state; immediately
///// after the constructor is called,
///// the Parameters, random, and output fields will be set
///// for you. The constructor probably won't be called ever if
///// restoring (deserializing) from a Checkpoint.
///// </summary>
//public EvolutionState()
//{
//}
/// <summary>
/// Unlike for other Setup() methods, ignore the base; it will always be null.
/// </summary>
/// <seealso cref="IPrototype.Setup(IEvolutionState,IParameter)"/>
public virtual void Setup(IEvolutionState state, IParameter paramBase)
{
// set up the per-thread data
Data = new Hashtable[Random.Length];
for (int i = 0; i < Data.Length; i++)
{
Data[i] = new Hashtable();
}
// we ignore the base, it's worthless anyway for EvolutionState
IParameter p = new Parameter(P_CHECKPOINT);
Checkpoint = Parameters.GetBoolean(p, null, false);
p = new Parameter(P_CHECKPOINTPREFIX);
CheckpointPrefix = Parameters.GetString(p, null);
if (CheckpointPrefix == null)
{
// check for the old-style checkpoint prefix parameter
var p2 = new Parameter(P_CHECKPOINTPREFIX_OLD);
CheckpointPrefix = Parameters.GetString(p2, null);
if (CheckpointPrefix == null)
{
Output.Fatal("No checkpoint prefix specified.", p); // indicate the new style, not old parameter
}
else
{
Output.Warning("The parameter \"prefix\" is deprecated. Please use \"checkpoint-prefix\".", p2);
}
}
else
{
// check for the old-style checkpoint prefix parameter as an acciental duplicate
var p2 = new Parameter(P_CHECKPOINTPREFIX_OLD);
if (Parameters.GetString(p2, null) != null)
{
Output.Warning("You have BOTH the deprecated parameter \"prefix\" and its replacement \"checkpoint-prefix\" defined. The replacement will be used, Please remove the \"prefix\" parameter.", p2);
}
}
p = new Parameter(P_CHECKPOINTMODULO);
CheckpointModulo = Parameters.GetInt(p, null, 1);
if (CheckpointModulo == 0)
{
Output.Fatal("The Checkpoint modulo must be an integer >0.", p);
}
p = new Parameter(P_CHECKPOINTDIRECTORY);
if (Parameters.ParameterExists(p, null))
{
CheckpointDirectory = Parameters.GetDirectory(p);
if (CheckpointDirectory == null)
{
Output.Fatal("The checkpoint directory name is invalid: " + CheckpointDirectory, p);
}
else if (!Path.IsPathRooted(CheckpointDirectory.FullName))
{
Output.Fatal("The checkpoint directory location is not a directory: " + CheckpointDirectory, p);
}
}
else
{
CheckpointDirectory = null;
}
p = new Parameter(P_EVALUATIONS);
if (Parameters.ParameterExists(p, null))
{
NumEvaluations = Parameters.GetInt(p, null, 1); // 0 would be UNDEFINED
if (NumEvaluations <= 0)
{
Output.Fatal("If defined, the number of evaluations must be an integer >= 1", p, null);
}
}
p = new Parameter(P_GENERATIONS);
if (Parameters.ParameterExists(p, null))
{
NumGenerations = Parameters.GetInt(p, null, 1); // 0 would be UDEFINED
if (NumGenerations <= 0)
{
Output.Fatal("If defined, the number of generations must be an integer >= 1.", p, null);
}
}
if (NumEvaluations != UNDEFINED && NumGenerations != UNDEFINED) // both defined
{
state.Output.Warning("Both generations and evaluations defined: generations will be ignored and computed from the evaluations.");
NumGenerations = UNDEFINED;
}
else if (NumEvaluations == UNDEFINED && NumGenerations == UNDEFINED) // uh oh, something must be defined
{
Output.Fatal("Either evaluations or generations must be defined.", new Parameter(P_GENERATIONS), new Parameter(P_EVALUATIONS));
}
p = new Parameter(P_QUITONRUNCOMPLETE);
QuitOnRunComplete = Parameters.GetBoolean(p, null, false);
/* Set up the singletons */
p = new Parameter(P_INITIALIZER);
Initializer = (Initializer)(Parameters.GetInstanceForParameter(p, null, typeof(Initializer)));
Initializer.Setup(this, p);
p = new Parameter(P_FINISHER);
Finisher = (IFinisher)(Parameters.GetInstanceForParameter(p, null, typeof(IFinisher)));
Finisher.Setup(this, p);
p = new Parameter(P_BREEDER);
Breeder = (Breeder)(Parameters.GetInstanceForParameter(p, null, typeof(Breeder)));
Breeder.Setup(this, p);
p = new Parameter(P_EVALUATOR);
Evaluator = (IEvaluator)(Parameters.GetInstanceForParameter(p, null, typeof(IEvaluator)));
Evaluator.Setup(this, p);
p = new Parameter(P_STATISTICS);
Statistics = (Statistics)(Parameters.GetInstanceForParameterEq(p, null, typeof(Statistics)));
Statistics.Setup(this, p);
p = new Parameter(P_EXCHANGER);
Exchanger = (Exchanger)(Parameters.GetInstanceForParameter(p, null, typeof(Exchanger)));
Exchanger.Setup(this, p);
p = new Parameter(P_INNOVATIONNUMBER);
InnovationNumber = Parameters.GetLong(p, null, long.MinValue);
Generation = 0;
}
