public void RegisterNewGeneration_AnyGeneration_DoNothing()
{
var target = new TrackingGenerationStrategy();
var population = new Population(2, 6, new ChromosomeStub());
population.CreateInitialGeneration();
target.RegisterNewGeneration(population);
Assert.AreEqual(1, population.Generations.Count);
population.CreateNewGeneration(new List <IChromosome>()
{
new ChromosomeStub(), new ChromosomeStub()
});
target.RegisterNewGeneration(population);
Assert.AreEqual(2, population.Generations.Count);
population.CreateNewGeneration(new List <IChromosome>()
{
new ChromosomeStub(), new ChromosomeStub()
});
target.RegisterNewGeneration(population);
Assert.AreEqual(3, population.Generations.Count);
population.CreateNewGeneration(new List <IChromosome>()
{
new ChromosomeStub(), new ChromosomeStub()
});
target.RegisterNewGeneration(population);
Assert.AreEqual(4, population.Generations.Count);
}
public void Start_ParallelManyGenerations_Faster()
{
var selection = new EliteSelection();
var crossover = new OnePointCrossover(2);
var mutation = new UniformMutation();
var chromosome = new ChromosomeStub();
var fitness = new FitnessStub()
{
SupportsParallel = true, ParallelSleep = 1
};
var generationStrategy = new TrackingGenerationStrategy();
var termination = new GenerationNumberTermination(100);
// we test linear first
var target = new GeneticAlgorithm(new Population(10, 10, chromosome), fitness
, selection, crossover, mutation);
target.Population.GenerationStrategy = generationStrategy;
target.Termination = termination;
target.TaskExecutor = new LinearTaskExecutor();
target.Start();
Assert.AreEqual(100, target.Population.Generations.Count);
var linearTime = target.TimeEvolving.TotalMilliseconds;
//then parallel
target = new GeneticAlgorithm(new Population(10, 10, chromosome), fitness
, selection, crossover, mutation);
target.Population.GenerationStrategy = generationStrategy;
target.Termination = termination;
target.TaskExecutor = new TplTaskExecutor();
target.Start();
Assert.AreEqual(100, target.Population.Generations.Count);
var parallelTime = target.TimeEvolving.TotalMilliseconds;
Assert.Less(parallelTime, linearTime);
}
public static TrackingGenerationStrategy TrackingStrategy()
{
TrackingGenerationStrategy strategy = new TrackingGenerationStrategy();
return(strategy);
}
