parallel

MultiThreadingStudy/MultiThreadingStudy.sln

@@ -13,6 +13,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UseTask", "UseTask\UseTask.
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CancelTask", "CacelTask\CancelTask.csproj", "{E06CEFBE-F024-4881-951A-D0E80ADB2D22}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UseParallel", "UseParallel\UseParallel.csproj", "{BFA56F90-D861-4F4A-BF1B-A96D54F48AA0}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -39,6 +41,10 @@ Global
 		{E06CEFBE-F024-4881-951A-D0E80ADB2D22}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{E06CEFBE-F024-4881-951A-D0E80ADB2D22}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{E06CEFBE-F024-4881-951A-D0E80ADB2D22}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BFA56F90-D861-4F4A-BF1B-A96D54F48AA0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BFA56F90-D861-4F4A-BF1B-A96D54F48AA0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BFA56F90-D861-4F4A-BF1B-A96D54F48AA0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BFA56F90-D861-4F4A-BF1B-A96D54F48AA0}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

MultiThreadingStudy/UseParallel/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
+    </startup>
+</configuration>

MultiThreadingStudy/UseParallel/DataParallelism.cs

@@ -0,0 +1,105 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace UseParallel
+{
+	internal class DataParallelism
+	{
+		public static void Test()
+		{
+			for (int i = 0; i < 1000; i++)
+			{
+				Console.WriteLine($"{Thread.CurrentThread.ManagedThreadId}: {i}");
+			}
+
+			Console.Read();
+
+			Parallel.For(0, 1000, (i) =>
+			{
+				Console.WriteLine($"{Thread.CurrentThread.ManagedThreadId}: {i}");
+
+			});
+		}
+
+		private static readonly int MAX = 10000000;
+		private static readonly int SHIFT = 3;
+
+		public static void SequentialEncrypt()
+		{
+			string text = "I am a boy. My name is Tom";
+			List<string> textList = new List<string>(MAX);
+			for (int i = 0; i < MAX; i++)
+			{
+				textList.Add(text);
+			}
+
+			Stopwatch watch = new Stopwatch();
+			watch.Start();
+
+			for (int i = 0; i < MAX; i++)
+			{
+				char[] charArr = textList[i].ToCharArray();
+				for (int x = 0; x < charArr.Length; x++)
+				{
+					if (charArr[x] >= 'a' && charArr[x] <= 'z')
+						charArr[x] = (char)('a' + ((charArr[x] - 'a' + SHIFT) % 26));
+					else if (charArr[x] >= 'A' && charArr[x] <= 'Z')
+						charArr[x] = (char)('A' + ((charArr[x] - 'A' + SHIFT) % 26));
+				}
+
+				textList[i] = new string(charArr);
+			}
+
+			watch.Stop();
+
+			Console.WriteLine($"Elapsed: {watch.Elapsed.ToString()}");
+
+		}
+
+		public static void ParallelEncrypt()
+		{
+			string text = "I am a boy. My name is Tom";
+			List<string> textList = new List<string>(MAX);
+			for (int i = 0; i < MAX; i++)
+			{
+				textList.Add(text);
+			}
+
+			Stopwatch watch = new Stopwatch();
+			watch.Start();
+
+			Parallel.For(0, MAX, i =>
+			{
+				char[] charArr = textList[i].ToCharArray();
+				for (int x = 0; x < charArr.Length; x++)
+				{
+					if (charArr[x] >= 'a' && charArr[x] <= 'z')
+						charArr[x] = (char)('a' + ((charArr[x] - 'a' + SHIFT) % 26));
+					else if (charArr[x] >= 'A' && charArr[x] <= 'Z')
+						charArr[x] = (char)('A' + ((charArr[x] - 'A' + SHIFT) % 26));
+				}
+
+				textList[i] = new string(charArr);
+			});
+
+			watch.Stop();
+
+			Console.WriteLine($"Elapsed: {watch.Elapsed.ToString()}");
+		}
+
+		public static void MultiInvoke()
+		{
+			Parallel.Invoke(
+				() => { ParallelEncrypt(); },
+				() => { ParallelEncrypt(); },
+				() => { ParallelEncrypt(); },
+				() => { ParallelEncrypt(); },
+				() => { ParallelEncrypt(); });
+		}
+	}
+}

MultiThreadingStudy/UseParallel/Program.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace UseParallel
+{
+	internal class Program
+	{
+		static void Main(string[] args)
+		{
+			//DataParallelism.Test();
+
+			//DataParallelism.SequentialEncrypt();
+
+			//Console.ReadKey();
+
+			//DataParallelism.ParallelEncrypt();
+
+			DataParallelism.MultiInvoke();
+
+			Console.ReadKey();
+		}
+	}
+}

MultiThreadingStudy/UseParallel/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 어셈블리에 대한 일반 정보는 다음 특성 집합을 통해 
+// 제어됩니다. 어셈블리와 관련된 정보를 수정하려면
+// 이러한 특성 값을 변경하세요.
+[assembly: AssemblyTitle("UseParallel")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("UseParallel")]
+[assembly: AssemblyCopyright("Copyright ©  2022")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// ComVisible을 false로 설정하면 이 어셈블리의 형식이 COM 구성 요소에 
+// 표시되지 않습니다. COM에서 이 어셈블리의 형식에 액세스하려면
+// 해당 형식에 대해 ComVisible 특성을 true로 설정하세요.
+[assembly: ComVisible(false)]
+
+// 이 프로젝트가 COM에 노출되는 경우 다음 GUID는 typelib의 ID를 나타냅니다.
+[assembly: Guid("bfa56f90-d861-4f4a-bf1b-a96d54f48aa0")]
+
+// 어셈블리의 버전 정보는 다음 네 가지 값으로 구성됩니다.
+//
+//      주 버전
+//      부 버전 
+//      빌드 번호
+//      수정 버전
+//
+// 모든 값을 지정하거나 아래와 같이 '*'를 사용하여 빌드 번호 및 수정 번호를
+// 기본값으로 할 수 있습니다.
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

MultiThreadingStudy/UseParallel/UseParallel.csproj

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{BFA56F90-D861-4F4A-BF1B-A96D54F48AA0}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>UseParallel</RootNamespace>
+    <AssemblyName>UseParallel</AssemblyName>
+    <TargetFrameworkVersion>v4.8.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="DataParallelism.cs" />
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>