private void runSolver(QapSolver solver, QapData data, QapSolutionBenchmark benchmark, QapSolution optimalSolution, String outputFileName)
{
//LocalOptimumValidator validator = new LocalOptimumValidator();
List <ulong[]> list = new List <ulong[]>();
for (int i = 0; i < RepetitionsNo; i++)
{
var lastSolution = solver.GetSolution();
//Console.WriteLine(validator.CheckLocalOptimum(lastSolution, data, false));
var firstSolution = solver.FirstSolution;
var lastSolutionScore = benchmark.RateSolution(lastSolution, data);
//Console.WriteLine("last : "+lastSolutionScore);
var firstSolutionScore = benchmark.RateSolution(firstSolution, data);
list.Add(new ulong[] { Convert.ToUInt64(optimalSolution.Score), firstSolutionScore, lastSolutionScore });
}
using (StreamWriter file = File.AppendText(outputFileName))
{
foreach (ulong[] line in list)
{
file.WriteLine(line[0].ToString() + ',' + line[1].ToString() + ',' + line[2].ToString() + ';');
}
}
}
private void runSolver(QapSolver solver, QapData data, QapSolutionBenchmark benchmark, QapSolution optimalSolution, String outputFileName)
{
List <long> solutionsScore = new List <long>();
ulong bestSolutionScore = 0;
//LocalOptimumValidator validator = new LocalOptimumValidator();
List <ulong[]> list = new List <ulong[]>();
for (int i = 0; i < RepetitionsNo; i++)
{
var lastSolution = solver.GetSolution();
var lastSolutionScore = benchmark.RateSolution(lastSolution, data);
if ((bestSolutionScore == 0) || (bestSolutionScore > lastSolutionScore))
{
bestSolutionScore = lastSolutionScore;
}
solutionsScore.Add(((long)lastSolutionScore));
list.Add(new ulong[] { Convert.ToUInt64(optimalSolution.Score), lastSolutionScore, (ulong)solutionsScore.Average(), bestSolutionScore });
}
using (StreamWriter file = File.AppendText(outputFileName))
{
foreach (ulong[] line in list)
{
file.WriteLine(line[0].ToString() + ',' + line[1].ToString() + ',' + line[2].ToString() + ',' + line[3].ToString() + ';');
}
}
}
public DeltaSolutionBenchmark(QapData data, QapSolution solution)
{
QapSolutionBenchmark bench = new QapSolutionBenchmark();
ActualBestSolution = solution;
Data = data;
SwapCounter = 0;
ActualBestSolution.Score = Convert.ToInt32(bench.RateSolution(solution.Solution.ToArray(), data));
CalcDeltaTable();
}
public bool CheckLocalOptimum(int[] solution, QapData data, bool startZeroIndex)
{
int size = data.Distances.Length;
QapSolutionBenchmark benchmark = new QapSolutionBenchmark();
var bestFitness = 0.0;
if (startZeroIndex)
{
bestFitness = benchmark.RateSolutionIndexedFromZero(solution, data);
}
else
{
bestFitness = benchmark.RateSolution(solution, data);
}
for (int i = 0; i < size - 1; i++)
{
for (int j = i + 1; i < size; i++)
{
var tempSolution = solution;
var temp = tempSolution[i];
tempSolution[i] = tempSolution[j];
tempSolution[j] = temp;
var fitness = 0.0;
if (startZeroIndex)
{
fitness = benchmark.RateSolutionIndexedFromZero(tempSolution, data);
}
else
{
fitness = benchmark.RateSolution(tempSolution, data);
}
if (fitness < bestFitness)
{
return(false);
}
}
}
return(true);
}
private void RunSolver(QapSolver solver, QapData data, QapSolutionBenchmark benchmark, QapSolution optimalSolution, String outputFileName)
{
ulong bestSolutionScore = 0;
int repetitionsWithoutProgress = 0;
List <double[]> list = new List <double[]>();
Stopwatch sw = new Stopwatch();
for (int i = 0; i < Repetitions; i++)
{
while (true)
{
sw.Start();
var lastSolution = solver.GetSolution();
sw.Stop();
var lastSolutionScore = benchmark.RateSolution(lastSolution, data);
if ((bestSolutionScore == 0) || (bestSolutionScore > lastSolutionScore))
{
bestSolutionScore = lastSolutionScore;
repetitionsWithoutProgress = 0;
}
else
{
repetitionsWithoutProgress++;
}
var efficiency = (double)(ulong)optimalSolution.Score / bestSolutionScore;
var time = sw.Elapsed.TotalMilliseconds;
list.Add(new double[] { efficiency, time });
if (repetitionsWithoutProgress > MaxRepetitionsWithoutImprove)
{
break;
}
if (efficiency > 0.99999999999999999999)
{
break;
}
}
}
using (StreamWriter file = File.AppendText(outputFileName))
{
foreach (double[] line in list)
{
file.WriteLine(line[0].ToString() + ';' + line[1].ToString() + ';');
}
}
}