public void InstancesAreOnlyUpdatedOncePerPhaseIfConfigurationIndicatesThat()
{
// Create configuration which determines that instances should be fixed in each phase.
this.FixInstances = true;
this.Configuration = this.CreateTunerConfigurationBuilder().Build();
this.Strategy = this.CreateStrategy(this.Configuration);
var severalInstances = new List <TestInstance> {
new TestInstance("c"), new TestInstance("d")
};
var population = this.CreatePopulation();
// Start first phase.
this.Strategy.Initialize(population, this.CreateIncumbentGenomeWrapper(), this.SingleTestInstance);
this.Strategy.PerformIteration(0, severalInstances);
this.Strategy.DumpStatus();
// Check instances have not been updated.
var incumbent = this.Strategy.FindIncumbentGenome();
Assert.Single(
incumbent.IncumbentInstanceResults);
// Start second phase.
this.Strategy.Initialize(population, this.CreateIncumbentGenomeWrapper(), severalInstances);
this.Strategy.PerformIteration(0, this.SingleTestInstance);
this.Strategy.DumpStatus();
// Instances should have been updated now.
incumbent = this.Strategy.FindIncumbentGenome();
Assert.Equal(
2,
incumbent.IncumbentInstanceResults.Count);
}
public void UseStatusDumpUpdatesEvaluationInstances()
{
// Create configuration which determines that instances should be fixed in each phase.
// This makes sure that the update is required.
this.FixInstances = true;
this.Configuration = this.CreateTunerConfigurationBuilder().Build();
this.Strategy = this.CreateStrategy(this.Configuration);
// Use the strategy.
var severalInstances = new List <TestInstance> {
new TestInstance("c"), new TestInstance("d")
};
this.Strategy.Initialize(this.CreatePopulation(), this.CreateIncumbentGenomeWrapper(), severalInstances);
this.Strategy.PerformIteration(0, severalInstances);
this.Strategy.DumpStatus();
// Create new strategy to read the status dump.
var newStrategy = this.CreateStrategy(this.Configuration);
newStrategy.UseStatusDump(null);
newStrategy.PerformIteration(0, severalInstances);
// Check instances are as before.
var incumbent = newStrategy.FindIncumbentGenome();
Assert.Equal(
2,
incumbent.IncumbentInstanceResults.Count);
}
/// <summary>
/// Updates <see cref="_informationHistory"/> with the current (finished) generation.
/// </summary>
/// <param name="currentStrategy">The current strategy.</param>
private void UpdateGenerationHistory(IPopulationUpdateStrategy <TInstance, TResult> currentStrategy)
{
var evaluationCountRequest =
this._targetRunResultStorage.Ask <EvaluationStatistic>(new EvaluationStatisticRequest());
evaluationCountRequest.Wait();
var generationInformation = new GenerationInformation(
generation: this._currGeneration,
totalNumberOfEvaluations: evaluationCountRequest.Result.TotalEvaluationCount,
strategy: currentStrategy.GetType(),
incumbent: new ImmutableGenome(this._incumbentGenomeWrapper.IncumbentGenome));
this._informationHistory.Add(generationInformation);
}
/// <summary>
/// Called before every test case.
/// </summary>
protected override void InitializeDefault()
{
this.Configuration = this.CreateTunerConfigurationBuilder().Build();
this.ActorSystem = ActorSystem.Create(TestBase.ActorSystemName, this.Configuration.AkkaConfiguration);
// Create parameter tree with quasi-continuous and categorical parameters.
var root = new AndNode();
root.AddChild(
new ValueNode <int>(ExtractIntegerValue.ParameterName, new IntegerDomain(-6, 143)));
root.AddChild(
new ValueNode <string>("categorical", new CategoricalDomain <string>(new List <string> {
"a", "b"
})));
this.ParameterTree = new ParameterTree(root);
this.GenomeSorter = this.ActorSystem.ActorOf(
Props.Create(() => new GenomeSorter <TestInstance, IntegerResult>(this.RunEvaluator)),
AkkaNames.GenomeSorter);
this.ResultStorageActor = this.ActorSystem.ActorOf(
Props.Create(() => new ResultStorageActor <TestInstance, IntegerResult>()),
AkkaNames.ResultStorageActor);
this.TournamentSelector = this.ActorSystem.ActorOf(
Props.Create(
() => new TournamentSelector <ExtractIntegerValue, TestInstance, IntegerResult>(
new ExtractIntegerValueCreator(),
this.RunEvaluator,
this.Configuration,
this.ResultStorageActor,
this.ParameterTree)),
AkkaNames.TournamentSelector);
this.GenomeBuilder = new ValueGenomeBuilder(this.ParameterTree, this.Configuration, this._genomeValues);
this.Strategy = this.CreateStrategy(this.Configuration);
}
