[yul-phaser] Population: Store fitness metric rather than program directly

- In the console app use ProgramSize metric when creating the population.
This commit is contained in:
cameel
2020-02-19 17:03:35 +01:00
committed by Kamil Śliwak
parent 85074e7a8a
commit 66fdc1c374
4 changed files with 45 additions and 73 deletions
+14 -42
View File
@@ -58,35 +58,7 @@ namespace
class PopulationFixture
{
protected:
PopulationFixture():
m_sourceStream(SampleSourceCode, ""),
m_program(Program::load(m_sourceStream)) {}
static constexpr char SampleSourceCode[] =
"{\n"
" let factor := 13\n"
" {\n"
" if factor\n"
" {\n"
" let variable := add(1, 2)\n"
" }\n"
" let result := factor\n"
" }\n"
" let something := 6\n"
" {\n"
" {\n"
" {\n"
" let value := 15\n"
" }\n"
" }\n"
" }\n"
" let something_else := mul(mul(something, 1), add(factor, 0))\n"
" if 1 { let x := 1 }\n"
" if 0 { let y := 2 }\n"
"}\n";
CharStream m_sourceStream;
Program m_program;
shared_ptr<FitnessMetric> m_fitnessMetric = make_shared<ChromosomeLengthMetric>();
};
BOOST_AUTO_TEST_SUITE(Phaser)
@@ -128,7 +100,7 @@ BOOST_FIXTURE_TEST_CASE(constructor_should_copy_chromosomes_and_not_compute_fitn
Chromosome::makeRandom(5),
Chromosome::makeRandom(10),
};
Population population(m_program, chromosomes);
Population population(m_fitnessMetric, chromosomes);
BOOST_TEST(population.individuals().size() == 2);
BOOST_TEST(population.individuals()[0].chromosome == chromosomes[0]);
@@ -145,7 +117,7 @@ BOOST_FIXTURE_TEST_CASE(makeRandom_should_get_chromosome_lengths_from_specified_
assert(chromosomeCount % maxLength == 0);
auto nextLength = [counter = 0, maxLength]() mutable { return counter++ % maxLength; };
auto population = Population::makeRandom(m_program, chromosomeCount, nextLength);
auto population = Population::makeRandom(m_fitnessMetric, chromosomeCount, nextLength);
// We can't rely on the order since the population sorts its chromosomes immediately but
// we can check the number of occurrences of each length.
@@ -161,7 +133,7 @@ BOOST_FIXTURE_TEST_CASE(makeRandom_should_get_chromosome_lengths_from_specified_
BOOST_FIXTURE_TEST_CASE(makeRandom_should_get_chromosome_lengths_from_specified_range, PopulationFixture)
{
auto population = Population::makeRandom(m_program, 100, 5, 10);
auto population = Population::makeRandom(m_fitnessMetric, 100, 5, 10);
BOOST_TEST(all_of(
population.individuals().begin(),
population.individuals().end(),
@@ -177,7 +149,7 @@ BOOST_FIXTURE_TEST_CASE(makeRandom_should_use_random_chromosome_length, Populati
constexpr int maxLength = 10;
constexpr double relativeTolerance = 0.05;
auto population = Population::makeRandom(m_program, populationSize, minLength, maxLength);
auto population = Population::makeRandom(m_fitnessMetric, populationSize, minLength, maxLength);
vector<size_t> samples = chromosomeLengths(population);
const double expectedValue = (maxLength + minLength) / 2.0;
@@ -195,7 +167,7 @@ BOOST_FIXTURE_TEST_CASE(makeRandom_should_return_population_with_random_chromoso
constexpr double relativeTolerance = 0.01;
map<string, size_t> stepIndices = enumerateOptmisationSteps();
auto population = Population::makeRandom(m_program, populationSize, chromosomeLength, chromosomeLength);
auto population = Population::makeRandom(m_fitnessMetric, populationSize, chromosomeLength, chromosomeLength);
vector<size_t> samples;
for (auto& individual: population.individuals())
@@ -211,7 +183,7 @@ BOOST_FIXTURE_TEST_CASE(makeRandom_should_return_population_with_random_chromoso
BOOST_FIXTURE_TEST_CASE(makeRandom_should_not_compute_fitness, PopulationFixture)
{
auto population = Population::makeRandom(m_program, 3, 5, 10);
auto population = Population::makeRandom(m_fitnessMetric, 3, 5, 10);
BOOST_TEST(all_of(population.individuals().begin(), population.individuals().end(), fitnessNotSet));
}
@@ -219,7 +191,7 @@ BOOST_FIXTURE_TEST_CASE(makeRandom_should_not_compute_fitness, PopulationFixture
BOOST_FIXTURE_TEST_CASE(run_should_evaluate_fitness, PopulationFixture)
{
stringstream output;
auto population = Population::makeRandom(m_program, 5, 5, 10);
auto population = Population::makeRandom(m_fitnessMetric, 5, 5, 10);
assert(all_of(population.individuals().begin(), population.individuals().end(), fitnessNotSet));
population.run(1, output);
@@ -237,11 +209,11 @@ BOOST_FIXTURE_TEST_CASE(run_should_not_make_fitness_of_top_chromosomes_worse, Po
Chromosome(vector<string>{UnusedPruner::name}),
Chromosome(vector<string>{StructuralSimplifier::name, BlockFlattener::name}),
};
Population population(m_program, chromosomes);
Population population(m_fitnessMetric, chromosomes);
size_t initialTopFitness[2] = {
Population::measureFitness(chromosomes[0], m_program),
Population::measureFitness(chromosomes[1], m_program),
m_fitnessMetric->evaluate(chromosomes[0]),
m_fitnessMetric->evaluate(chromosomes[1]),
};
for (int i = 0; i < 6; ++i)
@@ -264,9 +236,9 @@ BOOST_FIXTURE_TEST_CASE(run_should_not_make_fitness_of_top_chromosomes_worse, Po
BOOST_FIXTURE_TEST_CASE(plus_operator_should_add_two_populations, PopulationFixture)
{
BOOST_CHECK_EQUAL(
Population(m_program, {Chromosome("ac"), Chromosome("cx")}) +
Population(m_program, {Chromosome("g"), Chromosome("h"), Chromosome("iI")}),
Population(m_program, {Chromosome("ac"), Chromosome("cx"), Chromosome("g"), Chromosome("h"), Chromosome("iI")})
Population(m_fitnessMetric, {Chromosome("ac"), Chromosome("cx")}) +
Population(m_fitnessMetric, {Chromosome("g"), Chromosome("h"), Chromosome("iI")}),
Population(m_fitnessMetric, {Chromosome("ac"), Chromosome("cx"), Chromosome("g"), Chromosome("h"), Chromosome("iI")})
);
}