87 lines
2.3 KiB
C#
87 lines
2.3 KiB
C#
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using ConsoleApp1;
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using System.Data.Common;
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using System.Diagnostics;
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internal class Program
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{
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private static void Main(string[] args)
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{
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var value = new int[3] {100, 300, 500 };
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foreach(var i in value)
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{
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var a = CreateMatrix(i, i);
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var b = CreateMatrix(i, i);
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List<long> times = new() {};
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Console.WriteLine("Для пяти потоков: ");
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for (int j = 1; j <= 5; j++)
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{
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var sw = new Stopwatch();
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sw.Start();
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Calculate(a, j);
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sw.Stop();
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times.Add(sw.ElapsedTicks);
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}
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Console.WriteLine("Количество тиков для вычисления матрицы стороной "+i+": "+string.Join("\t", times));
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Console.WriteLine("Для десяти потоков: ");
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for (int j = 1; j <= 10; j++)
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{
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var sw = new Stopwatch();
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sw.Start();
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Calculate(a, j);
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sw.Stop();
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times.Add(sw.ElapsedTicks);
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}
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Console.WriteLine("Количество тиков для вычисления матрицы стороной " + i + ": " + string.Join("\t", times));
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}
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}
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private static int[,] CreateMatrix(int x, int y)
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{
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var rnd = new Random();
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var res = new int[y, x];
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for (int i = 0; i < y; i++)
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{
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for (int j = 0; j < x; j++)
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{
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res[i, j] = rnd.Next(0, 100);
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}
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}
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return res;
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}
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private static double Calculate(int[,] matrix, int maxTask)
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{
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double res = 0;
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var semaphore = new SemaphoreSlim(maxTask, maxTask);
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for (var j = 0; j < matrix.GetLength(0) - 1; j++)
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{
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_ = Task.Run(() =>
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{
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try
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{
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semaphore.Wait();
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res += (j % 2 == 1 ? 1 : -1) * matrix[1, j] *
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matrix.CreateMatrixWithoutColumn(j).
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CreateMatrixWithoutRow(1).CalculateDeterminant();
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}
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finally { semaphore.Release(); }
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});
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}
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semaphore.Wait(maxTask);
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return res;
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}
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} |