Merge pull request '[Л/Р 5] Миронов Евгений' (#53) from MironovEvgeniy/distributed-computing:mironov-eo-lab-5 into main
Reviewed-on: http://student.git.athene.tech/v.moiseev/distributed-computing/pulls/53
This commit is contained in:
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tasks/mironov-eo/lab_5/.gitignore
vendored
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tasks/mironov-eo/lab_5/.gitignore
vendored
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@ -0,0 +1,456 @@
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25
tasks/mironov-eo/lab_5/ConsoleApp1/ConsoleApp1.sln
Normal file
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tasks/mironov-eo/lab_5/ConsoleApp1/ConsoleApp1.sln
Normal file
@ -0,0 +1,25 @@
|
||||
|
||||
Microsoft Visual Studio Solution File, Format Version 12.00
|
||||
# Visual Studio Version 17
|
||||
VisualStudioVersion = 17.8.34322.80
|
||||
MinimumVisualStudioVersion = 10.0.40219.1
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp1", "ConsoleApp1\ConsoleApp1.csproj", "{8EE37F82-A2D1-49A3-B4D0-7BF7D4A43CB0}"
|
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|
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|
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|
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|
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|
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|
||||
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|
||||
{8EE37F82-A2D1-49A3-B4D0-7BF7D4A43CB0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
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|
||||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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@ -0,0 +1,14 @@
|
||||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<OutputType>Exe</OutputType>
|
||||
<TargetFramework>net8.0</TargetFramework>
|
||||
<ImplicitUsings>enable</ImplicitUsings>
|
||||
<Nullable>enable</Nullable>
|
||||
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|
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|
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|
||||
<PackageReference Include="BenchmarkDotNet" Version="0.13.11" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
@ -0,0 +1,57 @@
|
||||
using System;
|
||||
using System.Collections.Concurrent;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Text;
|
||||
using System.Threading.Tasks;
|
||||
|
||||
namespace ConsoleApp1
|
||||
{
|
||||
public class MatrixHelper
|
||||
{
|
||||
|
||||
static readonly Random rand = new Random();
|
||||
|
||||
public int[,] RandomGenerateMatrix(int dimensionsCount)
|
||||
{
|
||||
int[,] result = new int[dimensionsCount, dimensionsCount];
|
||||
for (int i = 0; i < dimensionsCount; i++)
|
||||
{
|
||||
for (int j = 0; j < dimensionsCount; j++)
|
||||
{
|
||||
result[i, j] = rand.Next(10000);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
public int[][] MultiplicationMatrix(int[,] firstMatrix, int[,] secondMatrix, int threadCount = 1)
|
||||
{
|
||||
var resultMatrix = new ConcurrentDictionary<int, int>[firstMatrix.GetLength(0)]
|
||||
.Select(x => new ConcurrentDictionary<int, int>())
|
||||
.ToArray();
|
||||
|
||||
for (int i = 0; i < firstMatrix.GetLength(0); i++)
|
||||
{
|
||||
Parallel.For(0, secondMatrix.GetLength(1), new ParallelOptions()
|
||||
{
|
||||
MaxDegreeOfParallelism = threadCount
|
||||
},
|
||||
(j) =>
|
||||
{
|
||||
|
||||
for (int k = 0; k < secondMatrix.GetLength(0); k++)
|
||||
{
|
||||
resultMatrix[i].AddOrUpdate(
|
||||
j,
|
||||
firstMatrix[i, k] * secondMatrix[k, j],
|
||||
(key, value) => value + firstMatrix[i, k] * secondMatrix[k, j]);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
return resultMatrix
|
||||
.Select(x => x.Values.ToArray())
|
||||
.ToArray();
|
||||
}
|
||||
}
|
||||
}
|
||||
94
tasks/mironov-eo/lab_5/ConsoleApp1/ConsoleApp1/Program.cs
Normal file
94
tasks/mironov-eo/lab_5/ConsoleApp1/ConsoleApp1/Program.cs
Normal file
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|
||||
// See https://aka.ms/new-console-template for more information
|
||||
|
||||
using BenchmarkDotNet.Attributes;
|
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using BenchmarkDotNet.Running;
|
||||
using ConsoleApp1;
|
||||
|
||||
BenchmarkRunner.Run<MatrixTest>();
|
||||
|
||||
|
||||
[MemoryDiagnoser]
|
||||
public class MatrixTest
|
||||
{
|
||||
|
||||
int[,] firstMatrix10;
|
||||
int[,] secondMatrix10;
|
||||
|
||||
int[,] firstMatrix100;
|
||||
int[,] secondMatrix100;
|
||||
|
||||
int[,] firstMatrix1000;
|
||||
int[,] secondMatrix1000;
|
||||
|
||||
|
||||
MatrixHelper matrixHelper;
|
||||
|
||||
|
||||
public MatrixTest()
|
||||
{
|
||||
matrixHelper = new MatrixHelper();
|
||||
|
||||
firstMatrix10 = matrixHelper.RandomGenerateMatrix(10);
|
||||
secondMatrix10 = matrixHelper.RandomGenerateMatrix(10);
|
||||
|
||||
firstMatrix100 = matrixHelper.RandomGenerateMatrix(100);
|
||||
secondMatrix100 = matrixHelper.RandomGenerateMatrix(100);
|
||||
|
||||
firstMatrix1000 = matrixHelper.RandomGenerateMatrix(1000);
|
||||
secondMatrix1000 = matrixHelper.RandomGenerateMatrix(1000);
|
||||
|
||||
}
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix100Tread1()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix100, secondMatrix100, 1);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix100Tread5()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix100, secondMatrix100, 5);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix100Tread15()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix100, secondMatrix100, 15);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix1000Tread1()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix1000, secondMatrix1000, 1);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix1000Tread5()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix1000, secondMatrix1000, 5);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix1000Tread15()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix1000, secondMatrix1000, 15);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix10Tread1()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix10, secondMatrix10, 1);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix10Tread5()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix10, secondMatrix10, 5);
|
||||
}
|
||||
|
||||
[Benchmark]
|
||||
public int[][] MultiplicationMatrix10Tread15()
|
||||
{
|
||||
return matrixHelper.MultiplicationMatrix(firstMatrix10, secondMatrix10, 15);
|
||||
}
|
||||
}
|
||||
66
tasks/mironov-eo/lab_5/README.md
Normal file
66
tasks/mironov-eo/lab_5/README.md
Normal file
@ -0,0 +1,66 @@
|
||||
# Отчет по лабораторной работе №5
|
||||
|
||||
Выполнил студент гр. ИСЭбд-41 Миронов Е.О.
|
||||
|
||||
## Создание приложения
|
||||
|
||||
Выбрал язык C#, Консольное приложение.
|
||||
|
||||
Проверяю правильность работы алгоритма
|
||||
|
||||
```c#
|
||||
public int[][] MultiplicationMatrix(int[,] firstMatrix, int[,] secondMatrix, int threadCount = 1)
|
||||
{
|
||||
var resultMatrix = new ConcurrentDictionary<int, int>[firstMatrix.GetLength(0)]
|
||||
.Select(x => new ConcurrentDictionary<int, int>())
|
||||
.ToArray();
|
||||
|
||||
for (int i = 0; i < firstMatrix.GetLength(0); i++)
|
||||
{
|
||||
Parallel.For(0, secondMatrix.GetLength(1), new ParallelOptions()
|
||||
{
|
||||
MaxDegreeOfParallelism = threadCount
|
||||
},
|
||||
(j) =>
|
||||
{
|
||||
|
||||
for (int k = 0; k < secondMatrix.GetLength(0); k++)
|
||||
{
|
||||
resultMatrix[i].AddOrUpdate(
|
||||
j,
|
||||
firstMatrix[i, k] * secondMatrix[k, j],
|
||||
(key, value) => value + firstMatrix[i, k] * secondMatrix[k, j]);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
return resultMatrix
|
||||
.Select(x => x.Values.ToArray())
|
||||
.ToArray();
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
## Бенчмарки
|
||||
|
||||
Делаю 9 пробных запусков
|
||||
Матрицы 10х10, 100х100, 1000х1000
|
||||
Количество потоков 1,5,15
|
||||
|
||||
|
||||
|
||||
|
||||
Предполагал что 15 потоков хватит, чтобы показать что бывает когда кол-во потоков в приложении больше кол-ва потоков в процессоре.
|
||||
|
||||
Однако этого не произошло, поэтому запускаю следующий тест на 55 потоков
|
||||
|
||||
|
||||
|
||||
Наблюдаем увелечение времени обработки. Это связано с с затратами на переключение контекста, синхронизацию потоков и т.п.
|
||||
|
||||
|
||||
Вывод: Параллельный алгоритм работает быстрее чем однопоточный в случае если ресурсы процесора это позволяют.
|
||||
В случае указания слишком большого числа потоков параллелльный алгоритм будет работать чуть медленее из-за накладных расходов на переключение контекста синхронизации и т.д.
|
||||
BIN
tasks/mironov-eo/lab_5/pic/1.png
Normal file
BIN
tasks/mironov-eo/lab_5/pic/1.png
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|
After Width: | Height: | Size: 66 KiB |
BIN
tasks/mironov-eo/lab_5/pic/2.png
Normal file
BIN
tasks/mironov-eo/lab_5/pic/2.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 40 KiB |
BIN
tasks/mironov-eo/lab_5/pic/3.png
Normal file
BIN
tasks/mironov-eo/lab_5/pic/3.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 22 KiB |
Loading…
Reference in New Issue
Block a user