main #3
73
tasks/ostrovskaya-sf/lab_5/README.md
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tasks/ostrovskaya-sf/lab_5/README.md
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# Отчет по лабораторной работе №5
|
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|
||||||
|
Выполнила студентка гр. ИСЭбд-41 Островская С.Ф.
|
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|
|
||||||
|
## Создание приложения
|
||||||
|
|
||||||
|
Было выбрано консольное приложение, язык программирования - c#.
|
||||||
|
|
||||||
|
Обычный алгоритм:
|
||||||
|
|
||||||
|
```cs
|
||||||
|
static int[][] MultiplyMatrix(int[][] matrix1, int[][] matrix2)
|
||||||
|
{
|
||||||
|
int rows = matrix1.Length;
|
||||||
|
int columns = matrix2[0].Length;
|
||||||
|
int[][] result = new int[rows][];
|
||||||
|
for (int i = 0; i < rows; i++)
|
||||||
|
{
|
||||||
|
result[i] = new int[columns];
|
||||||
|
for (int j = 0; j < columns; j++)
|
||||||
|
{
|
||||||
|
result[i][j] = 0;
|
||||||
|
for (int k = 0; k < matrix1[i].Length; k++)
|
||||||
|
{
|
||||||
|
result[i][j] += matrix1[i][k] * matrix2[k][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
```
|
||||||
|
Параллельный алгоритм:
|
||||||
|
|
||||||
|
```cs
|
||||||
|
static int[][] MultiplyMatrixParallel(int[][] matrix1, int[][] matrix2, int numThreads)
|
||||||
|
{
|
||||||
|
int rows = matrix1.Length;
|
||||||
|
int columns = matrix2[0].Length;
|
||||||
|
int[][] result = new int[rows][];
|
||||||
|
|
||||||
|
|
||||||
|
Parallel.For(0, rows, new ParallelOptions { MaxDegreeOfParallelism = numThreads }, i =>
|
||||||
|
{
|
||||||
|
result[i] = new int[columns];
|
||||||
|
for (int j = 0; j < columns; j++)
|
||||||
|
{
|
||||||
|
result[i][j] = 0;
|
||||||
|
Parallel.For(0, matrix1[i].Length, k =>
|
||||||
|
{
|
||||||
|
result[i][j] += matrix1[i][k] * matrix2[k][j];
|
||||||
|
});
|
||||||
|
}
|
||||||
|
});
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
В результате обычный алгоритм выполнился за ``0,0002112`` секунды, а паралелльный за ``0,0064956`` секунды.
|
||||||
|
|
||||||
|
## Бенчмарки
|
||||||
|
|
||||||
|
Протестируем обычный и параллельный алгоритмы на матрицах различных размеров: 100х100, 300х300 и 500х500.
|
||||||
|
|
||||||
|
Количество потоков: ``4``
|
||||||
|
|
||||||
|
|
||||||
|
Количество потоков: ``12``
|
||||||
|
|
||||||
|
|
||||||
|
``Вывод``: Обыный алгоритм работает быстрее, если количество элементов не слишком много. Параллельный же алгоритм работает быстрее только при наличии большого количества операций и данных. Оптимальное количество потоков для эффективной работы - 12.
|
||||||
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25
tasks/ostrovskaya-sf/lab_5/lab_5_matrix/lab_5_matrix.sln
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25
tasks/ostrovskaya-sf/lab_5/lab_5_matrix/lab_5_matrix.sln
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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}") = "lab_5_matrix", "lab_5_matrix\lab_5_matrix.csproj", "{A71D963B-1625-458C-A90F-5DB95C03B17C}"
|
||||||
|
EndProject
|
||||||
|
Global
|
||||||
|
GlobalSection(SolutionConfigurationPlatforms) = preSolution
|
||||||
|
Debug|Any CPU = Debug|Any CPU
|
||||||
|
Release|Any CPU = Release|Any CPU
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(ProjectConfigurationPlatforms) = postSolution
|
||||||
|
{A71D963B-1625-458C-A90F-5DB95C03B17C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||||
|
{A71D963B-1625-458C-A90F-5DB95C03B17C}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||||
|
{A71D963B-1625-458C-A90F-5DB95C03B17C}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||||
|
{A71D963B-1625-458C-A90F-5DB95C03B17C}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(SolutionProperties) = preSolution
|
||||||
|
HideSolutionNode = FALSE
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(ExtensibilityGlobals) = postSolution
|
||||||
|
SolutionGuid = {1A186ABB-2B32-4398-9A58-04ED799B0B80}
|
||||||
|
EndGlobalSection
|
||||||
|
EndGlobal
|
||||||
484
tasks/ostrovskaya-sf/lab_5/lab_5_matrix/lab_5_matrix/.gitignore
vendored
Normal file
484
tasks/ostrovskaya-sf/lab_5/lab_5_matrix/lab_5_matrix/.gitignore
vendored
Normal file
@ -0,0 +1,484 @@
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## Ignore Visual Studio temporary files, build results, and
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## files generated by popular Visual Studio add-ons.
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|
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**/*.HTMLClient/GeneratedArtifacts
|
||||||
|
**/*.DesktopClient/GeneratedArtifacts
|
||||||
|
**/*.DesktopClient/ModelManifest.xml
|
||||||
|
**/*.Server/GeneratedArtifacts
|
||||||
|
**/*.Server/ModelManifest.xml
|
||||||
|
_Pvt_Extensions
|
||||||
|
|
||||||
|
# Paket dependency manager
|
||||||
|
.paket/paket.exe
|
||||||
|
paket-files/
|
||||||
|
|
||||||
|
# FAKE - F# Make
|
||||||
|
.fake/
|
||||||
|
|
||||||
|
# CodeRush personal settings
|
||||||
|
.cr/personal
|
||||||
|
|
||||||
|
# Python Tools for Visual Studio (PTVS)
|
||||||
|
__pycache__/
|
||||||
|
*.pyc
|
||||||
|
|
||||||
|
# Cake - Uncomment if you are using it
|
||||||
|
# tools/**
|
||||||
|
# !tools/packages.config
|
||||||
|
|
||||||
|
# Tabs Studio
|
||||||
|
*.tss
|
||||||
|
|
||||||
|
# Telerik's JustMock configuration file
|
||||||
|
*.jmconfig
|
||||||
|
|
||||||
|
# BizTalk build output
|
||||||
|
*.btp.cs
|
||||||
|
*.btm.cs
|
||||||
|
*.odx.cs
|
||||||
|
*.xsd.cs
|
||||||
|
|
||||||
|
# OpenCover UI analysis results
|
||||||
|
OpenCover/
|
||||||
|
|
||||||
|
# Azure Stream Analytics local run output
|
||||||
|
ASALocalRun/
|
||||||
|
|
||||||
|
# MSBuild Binary and Structured Log
|
||||||
|
*.binlog
|
||||||
|
|
||||||
|
# NVidia Nsight GPU debugger configuration file
|
||||||
|
*.nvuser
|
||||||
|
|
||||||
|
# MFractors (Xamarin productivity tool) working folder
|
||||||
|
.mfractor/
|
||||||
|
|
||||||
|
# Local History for Visual Studio
|
||||||
|
.localhistory/
|
||||||
|
|
||||||
|
# Visual Studio History (VSHistory) files
|
||||||
|
.vshistory/
|
||||||
|
|
||||||
|
# BeatPulse healthcheck temp database
|
||||||
|
healthchecksdb
|
||||||
|
|
||||||
|
# Backup folder for Package Reference Convert tool in Visual Studio 2017
|
||||||
|
MigrationBackup/
|
||||||
|
|
||||||
|
# Ionide (cross platform F# VS Code tools) working folder
|
||||||
|
.ionide/
|
||||||
|
|
||||||
|
# Fody - auto-generated XML schema
|
||||||
|
FodyWeavers.xsd
|
||||||
|
|
||||||
|
# VS Code files for those working on multiple tools
|
||||||
|
.vscode/*
|
||||||
|
!.vscode/settings.json
|
||||||
|
!.vscode/tasks.json
|
||||||
|
!.vscode/launch.json
|
||||||
|
!.vscode/extensions.json
|
||||||
|
*.code-workspace
|
||||||
|
|
||||||
|
# Local History for Visual Studio Code
|
||||||
|
.history/
|
||||||
|
|
||||||
|
# Windows Installer files from build outputs
|
||||||
|
*.cab
|
||||||
|
*.msi
|
||||||
|
*.msix
|
||||||
|
*.msm
|
||||||
|
*.msp
|
||||||
|
|
||||||
|
# JetBrains Rider
|
||||||
|
*.sln.iml
|
||||||
|
.idea
|
||||||
|
|
||||||
|
##
|
||||||
|
## Visual studio for Mac
|
||||||
|
##
|
||||||
|
|
||||||
|
|
||||||
|
# globs
|
||||||
|
Makefile.in
|
||||||
|
*.userprefs
|
||||||
|
*.usertasks
|
||||||
|
config.make
|
||||||
|
config.status
|
||||||
|
aclocal.m4
|
||||||
|
install-sh
|
||||||
|
autom4te.cache/
|
||||||
|
*.tar.gz
|
||||||
|
tarballs/
|
||||||
|
test-results/
|
||||||
|
|
||||||
|
# Mac bundle stuff
|
||||||
|
*.dmg
|
||||||
|
*.app
|
||||||
|
|
||||||
|
# content below from: https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
|
||||||
|
# General
|
||||||
|
.DS_Store
|
||||||
|
.AppleDouble
|
||||||
|
.LSOverride
|
||||||
|
|
||||||
|
# Icon must end with two \r
|
||||||
|
Icon
|
||||||
|
|
||||||
|
|
||||||
|
# Thumbnails
|
||||||
|
._*
|
||||||
|
|
||||||
|
# Files that might appear in the root of a volume
|
||||||
|
.DocumentRevisions-V100
|
||||||
|
.fseventsd
|
||||||
|
.Spotlight-V100
|
||||||
|
.TemporaryItems
|
||||||
|
.Trashes
|
||||||
|
.VolumeIcon.icns
|
||||||
|
.com.apple.timemachine.donotpresent
|
||||||
|
|
||||||
|
# Directories potentially created on remote AFP share
|
||||||
|
.AppleDB
|
||||||
|
.AppleDesktop
|
||||||
|
Network Trash Folder
|
||||||
|
Temporary Items
|
||||||
|
.apdisk
|
||||||
|
|
||||||
|
# content below from: https://github.com/github/gitignore/blob/master/Global/Windows.gitignore
|
||||||
|
# Windows thumbnail cache files
|
||||||
|
Thumbs.db
|
||||||
|
ehthumbs.db
|
||||||
|
ehthumbs_vista.db
|
||||||
|
|
||||||
|
# Dump file
|
||||||
|
*.stackdump
|
||||||
|
|
||||||
|
# Folder config file
|
||||||
|
[Dd]esktop.ini
|
||||||
|
|
||||||
|
# Recycle Bin used on file shares
|
||||||
|
$RECYCLE.BIN/
|
||||||
|
|
||||||
|
# Windows Installer files
|
||||||
|
*.cab
|
||||||
|
*.msi
|
||||||
|
*.msix
|
||||||
|
*.msm
|
||||||
|
*.msp
|
||||||
|
|
||||||
|
# Windows shortcuts
|
||||||
|
*.lnk
|
||||||
|
|
||||||
|
# Vim temporary swap files
|
||||||
|
*.swp
|
||||||
192
tasks/ostrovskaya-sf/lab_5/lab_5_matrix/lab_5_matrix/Program.cs
Normal file
192
tasks/ostrovskaya-sf/lab_5/lab_5_matrix/lab_5_matrix/Program.cs
Normal file
@ -0,0 +1,192 @@
|
|||||||
|
using System;
|
||||||
|
using System.Threading.Tasks;
|
||||||
|
using System.Diagnostics;
|
||||||
|
|
||||||
|
class Program
|
||||||
|
{
|
||||||
|
static void Main()
|
||||||
|
{
|
||||||
|
Console.WriteLine("Задания: \n1. проверка умножения матриц;\n2. бэнчмарки;");
|
||||||
|
Console.Write("Введите номер задания: ");
|
||||||
|
int numTask = int.Parse(Console.ReadLine());
|
||||||
|
if (numTask == 1)
|
||||||
|
{
|
||||||
|
int[][] matrix1 = GenerateMatrix(10);
|
||||||
|
int[][] matrix2 = GenerateMatrix(10);
|
||||||
|
|
||||||
|
Console.WriteLine();
|
||||||
|
PrintMatrix(matrix1); // Вывод результата
|
||||||
|
Console.WriteLine();
|
||||||
|
PrintMatrix(matrix2); // Вывод результата
|
||||||
|
|
||||||
|
// Вводим количество потоков вручную
|
||||||
|
Console.WriteLine();
|
||||||
|
Console.Write("Введите количество потоков: ");
|
||||||
|
int numThreads = int.Parse(Console.ReadLine());
|
||||||
|
Console.WriteLine();
|
||||||
|
|
||||||
|
Stopwatch sw1 = new Stopwatch();
|
||||||
|
sw1.Start();
|
||||||
|
int[][] resultSequential = MultiplyMatrix(matrix1, matrix2); // Вызов обычного алгоритма
|
||||||
|
sw1.Stop();
|
||||||
|
|
||||||
|
Stopwatch sw2 = new Stopwatch();
|
||||||
|
sw2.Start();
|
||||||
|
int[][] resultParallel = MultiplyMatrixParallel(matrix1, matrix2, numThreads); // Вызов параллельного алгоритма
|
||||||
|
sw2.Stop();
|
||||||
|
|
||||||
|
Console.WriteLine("Выполнение обычного алгоритма");
|
||||||
|
PrintMatrix(resultSequential); // Вывод результата
|
||||||
|
TimeSpan elapsedTime1 = sw1.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime1.TotalSeconds:F7} с");
|
||||||
|
|
||||||
|
Console.WriteLine("\nВыполнение параллельного алгоритма");
|
||||||
|
PrintMatrix(resultParallel); // Вывод результата
|
||||||
|
TimeSpan elapsedTime2 = sw2.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime2.TotalSeconds:F7} с");
|
||||||
|
|
||||||
|
Console.ReadLine();
|
||||||
|
}
|
||||||
|
else if (numTask == 2)
|
||||||
|
{
|
||||||
|
int[][] matrix1 = GenerateMatrix(100);
|
||||||
|
int[][] matrix2 = GenerateMatrix(100);
|
||||||
|
|
||||||
|
Console.Write("Введите количество потоков: ");
|
||||||
|
int numThreads = int.Parse(Console.ReadLine());
|
||||||
|
Console.WriteLine();
|
||||||
|
|
||||||
|
Console.WriteLine("Размер матрицы: 100x100");
|
||||||
|
|
||||||
|
Console.WriteLine("\nПоследовательный алгоритм:");
|
||||||
|
Stopwatch sw1 = new Stopwatch();
|
||||||
|
sw1.Start();
|
||||||
|
int[][] resultSequential = MultiplyMatrix(matrix1, matrix2);
|
||||||
|
sw1.Stop();
|
||||||
|
TimeSpan elapsedTime1 = sw1.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime1.TotalSeconds:F7} мс");
|
||||||
|
|
||||||
|
Console.WriteLine("\nПараллельный алгоритм:");
|
||||||
|
Stopwatch sw2 = new Stopwatch();
|
||||||
|
sw2.Start();
|
||||||
|
int[][] resultParallel = MultiplyMatrixParallel(matrix1, matrix2, numThreads);
|
||||||
|
sw2.Stop();
|
||||||
|
TimeSpan elapsedTime2 = sw2.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime2.TotalSeconds:F7} с");
|
||||||
|
|
||||||
|
Console.WriteLine("\n------------------------------------------\n");
|
||||||
|
|
||||||
|
matrix1 = GenerateMatrix(300);
|
||||||
|
matrix2 = GenerateMatrix(300);
|
||||||
|
|
||||||
|
Console.WriteLine("Размер матрицы: 300x300");
|
||||||
|
|
||||||
|
Console.WriteLine("\nПоследовательный алгоритм:");
|
||||||
|
sw1.Restart();
|
||||||
|
resultSequential = MultiplyMatrix(matrix1, matrix2);
|
||||||
|
sw1.Stop();
|
||||||
|
elapsedTime1 = sw1.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime1.TotalSeconds:F7} мс");
|
||||||
|
|
||||||
|
Console.WriteLine("\nПараллельный алгоритм:");
|
||||||
|
sw2.Restart();
|
||||||
|
resultParallel = MultiplyMatrixParallel(matrix1, matrix2, numThreads);
|
||||||
|
sw2.Stop();
|
||||||
|
elapsedTime2 = sw2.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime2.TotalSeconds:F7} с");
|
||||||
|
|
||||||
|
Console.WriteLine("\n------------------------------------------\n");
|
||||||
|
|
||||||
|
matrix1 = GenerateMatrix(500);
|
||||||
|
matrix2 = GenerateMatrix(500);
|
||||||
|
|
||||||
|
Console.WriteLine("Размер матрицы: 500x500");
|
||||||
|
|
||||||
|
Console.WriteLine("\nПоследовательный алгоритм:");
|
||||||
|
sw1.Restart();
|
||||||
|
resultSequential = MultiplyMatrix(matrix1, matrix2);
|
||||||
|
sw1.Stop();
|
||||||
|
elapsedTime1 = sw1.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime1.TotalSeconds:F7} мс");
|
||||||
|
|
||||||
|
Console.WriteLine("\nПараллельный алгоритм:");
|
||||||
|
sw2.Restart();
|
||||||
|
resultParallel = MultiplyMatrixParallel(matrix1, matrix2, numThreads);
|
||||||
|
sw2.Stop();
|
||||||
|
elapsedTime2 = sw2.Elapsed;
|
||||||
|
Console.WriteLine($"Время выполнения: {elapsedTime2.TotalSeconds:F7} с");
|
||||||
|
|
||||||
|
Console.ReadLine();
|
||||||
|
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int[][] GenerateMatrix(int size)
|
||||||
|
{
|
||||||
|
Random random = new Random();
|
||||||
|
int[][] matrix = new int[size][];
|
||||||
|
for (int i = 0; i < size; i++)
|
||||||
|
{
|
||||||
|
matrix[i] = new int[size];
|
||||||
|
for (int j = 0; j < size; j++)
|
||||||
|
{
|
||||||
|
matrix[i][j] = random.Next(1, 100);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return matrix;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int[][] MultiplyMatrix(int[][] matrix1, int[][] matrix2)
|
||||||
|
{
|
||||||
|
int rows = matrix1.Length;
|
||||||
|
int columns = matrix2[0].Length;
|
||||||
|
int[][] result = new int[rows][];
|
||||||
|
for (int i = 0; i < rows; i++)
|
||||||
|
{
|
||||||
|
result[i] = new int[columns];
|
||||||
|
for (int j = 0; j < columns; j++)
|
||||||
|
{
|
||||||
|
result[i][j] = 0;
|
||||||
|
for (int k = 0; k < matrix1[i].Length; k++)
|
||||||
|
{
|
||||||
|
result[i][j] += matrix1[i][k] * matrix2[k][j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int[][] MultiplyMatrixParallel(int[][] matrix1, int[][] matrix2, int numThreads)
|
||||||
|
{
|
||||||
|
int rows = matrix1.Length;
|
||||||
|
int columns = matrix2[0].Length;
|
||||||
|
int[][] result = new int[rows][];
|
||||||
|
|
||||||
|
|
||||||
|
Parallel.For(0, rows, new ParallelOptions { MaxDegreeOfParallelism = numThreads }, i =>
|
||||||
|
{
|
||||||
|
result[i] = new int[columns];
|
||||||
|
for (int j = 0; j < columns; j++)
|
||||||
|
{
|
||||||
|
result[i][j] = 0;
|
||||||
|
Parallel.For(0, matrix1[i].Length, k =>
|
||||||
|
{
|
||||||
|
result[i][j] += matrix1[i][k] * matrix2[k][j];
|
||||||
|
});
|
||||||
|
}
|
||||||
|
});
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PrintMatrix(int[][] matrix)
|
||||||
|
{
|
||||||
|
for (int i = 0; i < matrix.Length; i++)
|
||||||
|
{
|
||||||
|
for (int j = 0; j < matrix[i].Length; j++)
|
||||||
|
{
|
||||||
|
Console.Write(matrix[i][j] + " ");
|
||||||
|
}
|
||||||
|
Console.WriteLine();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,10 @@
|
|||||||
|
<Project Sdk="Microsoft.NET.Sdk">
|
||||||
|
|
||||||
|
<PropertyGroup>
|
||||||
|
<OutputType>Exe</OutputType>
|
||||||
|
<TargetFramework>net8.0</TargetFramework>
|
||||||
|
<ImplicitUsings>enable</ImplicitUsings>
|
||||||
|
<Nullable>enable</Nullable>
|
||||||
|
</PropertyGroup>
|
||||||
|
|
||||||
|
</Project>
|
||||||
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic1.jpg
Normal file
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic1.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 93 KiB |
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic2.jpg
Normal file
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic2.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 148 KiB |
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic3.jpg
Normal file
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic3.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 75 KiB |
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic4.jpg
Normal file
BIN
tasks/ostrovskaya-sf/lab_5/pic/pic4.jpg
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 75 KiB |
Loading…
Reference in New Issue
Block a user