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tasks/mikhailov-ys/lab_6/.gitignore vendored Normal file
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## Ignore Visual Studio temporary files, build results, and
## files generated by popular Visual Studio add-ons.
##
## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
# User-specific files
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*.dotCover
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# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
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# because we have git ;-)
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FodyWeavers.xsd
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# globs
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# Mac bundle stuff
*.dmg
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# General
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# Thumbnails
._*
# Files that might appear in the root of a volume
.DocumentRevisions-V100
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##
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.vscode/*
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!.vscode/extensions.json

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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.8.34330.188
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp6", "ConsoleApp6\ConsoleApp6.csproj", "{1AE4DE27-ADC3-42DB-837D-862183B51360}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{1AE4DE27-ADC3-42DB-837D-862183B51360}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{1AE4DE27-ADC3-42DB-837D-862183B51360}.Debug|Any CPU.Build.0 = Debug|Any CPU
{1AE4DE27-ADC3-42DB-837D-862183B51360}.Release|Any CPU.ActiveCfg = Release|Any CPU
{1AE4DE27-ADC3-42DB-837D-862183B51360}.Release|Any CPU.Build.0 = Release|Any CPU
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GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
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GlobalSection(ExtensibilityGlobals) = postSolution
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EndGlobal

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
</Project>

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using System;
using System.Diagnostics;
using System.Threading.Tasks;
class Program
{
static void Main(string[] args)
{
Console.WriteLine("2 - Бенчмарки");
string userChoice = Console.ReadLine();
if (userChoice == "1")
{
// Task 1: Calculate determinant
}
else if (userChoice == "2")
{
int numberOfThreads = GetNumberOfThreads(); // Get the number of threads from the user
Console.WriteLine("\n Вычисление матрицы с размером 10*10:");
RunDeterminantBenchmark(10, numberOfThreads);
Console.ReadLine();
}
else
{
Console.WriteLine("Invalid choice.");
Console.WriteLine("\nPress Enter to return to the main menu...");
Console.ReadLine();
}
Console.ReadLine();
}
static void RunDeterminantBenchmark(int matrixSize, int numberOfThreads)
{
int[,] randomMatrix = GenerateRandomMatrix(matrixSize);
Console.WriteLine("Матрица:");
PrintMatrix(randomMatrix);
Stopwatch stopwatch = Stopwatch.StartNew();
stopwatch.Restart();
double sequentialDeterminant = CalculateDeterminantSequential(randomMatrix);
stopwatch.Stop();
Console.WriteLine($"Обычный: детерминант = {sequentialDeterminant}, время = {stopwatch.Elapsed.TotalSeconds} с");
stopwatch.Restart();
double parallelDeterminant = CalculateDeterminantParallel(randomMatrix, numberOfThreads);
stopwatch.Stop();
Console.WriteLine($"Параллельный: детерминант = {parallelDeterminant}, время = {stopwatch.Elapsed.TotalSeconds} с");
}
static int[,] GenerateRandomMatrix(int size)
{
Random random = new Random();
int[,] matrix = new int[size, size];
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
matrix[i, j] = random.Next(10);
}
}
return matrix;
}
static double CalculateDeterminantSequential(int[,] matrix)
{
int size = matrix.GetLength(0);
double determinant = 0;
if (size == 1)
{
determinant = matrix[0, 0];
}
else if (size == 2)
{
determinant = matrix[0, 0] * matrix[1, 1] - matrix[0, 1] * matrix[1, 0];
}
else
{
for (int j = 0; j < size; j++)
{
determinant += matrix[0, j] * CalculateMinor(matrix, 0, j) * Math.Pow(-1, j);
}
}
return determinant;
}
static double CalculateDeterminantParallel(int[,] matrix, int threads)
{
int size = matrix.GetLength(0);
double determinant = 0;
if (size == 1)
{
determinant = matrix[0, 0];
}
else if (size == 2)
{
determinant = matrix[0, 0] * matrix[1, 1] - matrix[0, 1] * matrix[1, 0];
}
else
{
Parallel.For(0, size, new ParallelOptions { MaxDegreeOfParallelism = threads }, j =>
{
determinant += matrix[0, j] * CalculateMinor(matrix, 0, j) * Math.Pow(-1, j);
});
}
return determinant;
}
static double CalculateMinor(int[,] matrix, int row, int col)
{
int size = matrix.GetLength(0);
int[,] minor = new int[size - 1, size - 1];
int minorRow = 0;
for (int i = 0; i < size; i++)
{
if (i == row)
{
continue;
}
int minorCol = 0;
for (int j = 0; j < size; j++)
{
if (j == col)
{
continue;
}
minor[minorRow, minorCol] = matrix[i, j];
minorCol++;
}
minorRow++;
}
return CalculateDeterminantSequential(minor);
}
static int GetNumberOfThreads()
{
int threads = 1;
Console.WriteLine("Кол-во потоков:");
int.TryParse(Console.ReadLine(), out threads);
return threads;
}
static void PrintMatrix(int[,] matrix)
{
int size = matrix.GetLength(0);
for (int i = 0; i < size; i++)
{
for (int j = 0; j < size; j++)
{
Console.Write(matrix[i, j] + " ");
}
Console.WriteLine();
}
}
}

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{
"runtimeTarget": {
"name": ".NETCoreApp,Version=v8.0",
"signature": ""
},
"compilationOptions": {},
"targets": {
".NETCoreApp,Version=v8.0": {
"ConsoleApp6/1.0.0": {
"runtime": {
"ConsoleApp6.dll": {}
}
}
}
},
"libraries": {
"ConsoleApp6/1.0.0": {
"type": "project",
"serviceable": false,
"sha512": ""
}
}
}

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{
"runtimeOptions": {
"tfm": "net8.0",
"framework": {
"name": "Microsoft.NETCore.App",
"version": "8.0.0"
},
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"System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
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<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<RestoreSuccess Condition=" '$(RestoreSuccess)' == '' ">True</RestoreSuccess>
<RestoreTool Condition=" '$(RestoreTool)' == '' ">NuGet</RestoreTool>
<ProjectAssetsFile Condition=" '$(ProjectAssetsFile)' == '' ">$(MSBuildThisFileDirectory)project.assets.json</ProjectAssetsFile>
<NuGetPackageRoot Condition=" '$(NuGetPackageRoot)' == '' ">$(UserProfile)\.nuget\packages\</NuGetPackageRoot>
<NuGetPackageFolders Condition=" '$(NuGetPackageFolders)' == '' ">C:\Users\Tatyana\.nuget\packages\</NuGetPackageFolders>
<NuGetProjectStyle Condition=" '$(NuGetProjectStyle)' == '' ">PackageReference</NuGetProjectStyle>
<NuGetToolVersion Condition=" '$(NuGetToolVersion)' == '' ">6.8.0</NuGetToolVersion>
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<?xml version="1.0" encoding="utf-8" standalone="no"?>
<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" />

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// <autogenerated />
using System;
using System.Reflection;
[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v8.0", FrameworkDisplayName = ".NET 8.0")]

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//------------------------------------------------------------------------------
// <auto-generated>
// Этот код создан программой.
// Исполняемая версия:4.0.30319.42000
//
// Изменения в этом файле могут привести к неправильной работе и будут потеряны в случае
// повторной генерации кода.
// </auto-generated>
//------------------------------------------------------------------------------
using System;
using System.Reflection;
[assembly: System.Reflection.AssemblyCompanyAttribute("ConsoleApp6")]
[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0")]
[assembly: System.Reflection.AssemblyProductAttribute("ConsoleApp6")]
[assembly: System.Reflection.AssemblyTitleAttribute("ConsoleApp6")]
[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
// Создано классом WriteCodeFragment MSBuild.

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f23481016d3380d0d4750dc1e45f677b98f6d4677ac41689712fd0c1fd55cde2

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build_property.TargetPlatformMinVersion =
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build_property.InvariantGlobalization =
build_property.PlatformNeutralAssembly =
build_property.EnforceExtendedAnalyzerRules =
build_property._SupportedPlatformList = Linux,macOS,Windows
build_property.RootNamespace = ConsoleApp6
build_property.ProjectDir = C:\Users\Tatyana\source\repos\ConsoleApp6\ConsoleApp6\
build_property.EnableComHosting =
build_property.EnableGeneratedComInterfaceComImportInterop =

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// <auto-generated/>
global using global::System;
global using global::System.Collections.Generic;
global using global::System.IO;
global using global::System.Linq;
global using global::System.Net.Http;
global using global::System.Threading;
global using global::System.Threading.Tasks;

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# Отчёт по лабораторной работе №6
Выполнил: студент гр. ИСЭбд-41 Михайлов Юрий.
## Создание приложения
Выбран язык C#.
Запустим алгоритм с матрицей 10x10 c различными алгоритмами.
![](picture/1.png)
## Бенчмарки
Протекстируем обычный и паралелльный с различными размерами матриц.
Матрица 3х3
![](picture/2.png)
Матрица 5х5
![](picture/3.png)
Матрица 10х10
![](picture/1.png)
Вывод: Скоростные возможности параллельного алгоритма проявляются только при значительном количестве операций. В случае, если операций меньше, стандартный алгоритм может оказаться более быстрым.

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