{"id":19078474,"url":"https://github.com/sikatikenmogne/tpl-csharp-workshop","last_synced_at":"2025-09-05T18:42:49.093Z","repository":{"id":238908091,"uuid":"797122176","full_name":"sikatikenmogne/TPL-csharp-workshop","owner":"sikatikenmogne","description":"This project is a hands-on workshop focused on exploring and understanding the concepts of parallel programming in C#. It provides practical examples of using delegates, events, and various parallel programming constructs such as Parallel.For, Parallel.ForEach, Parallel.Invoke, and Task.Factory in a console application. 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The main objective is to provide hands-on experience with the concepts and tools necessary to solve problems related to parallel programming.\n\n## Workshop Objectives\n\nAfter completing this workshop, you will be able to:\n\n- Manipulate a `Parallel.For`\n- Manipulate a `Parallel.ForEach`\n- Manipulate a `Parallel.Invoke`\n- Manipulate Tasks\n- Manipulate an event\n- Manipulate a delegate multi-cast\n\nAll exercises are performed in console-type applications. This workshop is designed to enhance your technical skills in this module. However, consistent work and rigorous implementation are essential for successful completion.\n\n## Duration\n\nThis workshop is expected to take approximately 4 hours.\n\n## Exercises\n\n### Q1 — Code Observation\n\nObserve the provided code in the [`Program.cs`](https://github.com/sikatikenmogne/TPL-csharp-workshop/blob/main/Program.cs) file. This code demonstrates the use of delegates, events, and parallel programming constructs.\n\n---\n\n### Q2 — Code Philosophy\n\nUnderstand the philosophy of the provided code. What is it trying to achieve and how does it use the concepts of parallel programming to do so?\n\n#### Answer:\n- **[✍️ related \"essay\"](https://github.com/sikatikenmogne/TPL-csharp-workshop/blob/2-code-philosophy/README.md#q2--code-philosophy)**\n\n---\n\n### Q3 — Code Translation\n\nTranslate the provided code line by line. Understand what each line of code does and how it contributes to the overall functionality of the program.\n\n#### Answer:\n- **[✍️ related code](https://github.com/sikatikenmogne/TPL-csharp-workshop/blob/3-code-translation/Program.cs)**\n\n---\n\n### Q4 — Parallel.For\n\nWrite a simple program that demonstrates the use of `Parallel.For`. This construct is used to execute a `for` loop in parallel, which can significantly improve performance for CPU-bound tasks.\n\n#### Answer:\n- **[✍️ related code](https://github.com/sikatikenmogne/TPL-csharp-workshop/blob/4-parallel-for/Program.cs)**\n\n```text\nIn this code, Parallel.For is used to execute a for loop in parallel. The loop runs from 0 to 9,\nand for each iteration,it calculates the square of the current number and prints it. The order \nof the output may vary because the iterations are running in parallel.\n```\n\n---\n\n### Q5 — Parallel.ForEach\n\nWrite a simple program that demonstrates the use of `Parallel.ForEach`. This construct is used to execute a `foreach` loop in parallel, which can significantly improve performance when processing collections of data.\n\n#### Answer:\n- **[✍️ related code](https://github.com/sikatikenmogne/TPL-csharp-workshop/blob/5-parallel-foreach/Program.cs)**\n\n```text\nThe code you provided is a good example of using Parallel.ForEach to improve performance when\nprocessing large collections of data. It calculates prime numbers in a list using both a \nregular foreach loop and Parallel.ForEach, and compares the time taken for each method.\n```\n\n---\n\n### Q6 — Parallel.Invoke\n\nWrite a simple program that demonstrates the use of `Parallel.Invoke`. This construct is used to execute multiple methods in parallel.\n\n#### Answer:\n- **[✍️ related code](https://github.com/sikatikenmogne/TPL-csharp-workshop/blob/6-parallel-invoke/Program.cs)**\n\n```text\nIn this code, Parallel.Invoke is used to execute three methods in parallel: BasicAction, \na lambda expression, and an inline delegate. Each method prints a message to the console \nalong with the ID of the thread it's running on\n```\n\n---\n\n### Q7 — Task.Factory\n\nWrite a simple program that demonstrates the use of `Task.Factory`. This construct is used to start and manage tasks.\n\n#### Answer:\n- **[✍️ related code](https://github.com/sikatikenmogne/TPL-csharp-workshop/blob/7-parallel-factory/Program.cs)**\n\n```text\nThis code is a simple C# program that demonstrates the use of Task.Factory.StartNew.\nThis method is used to create and start a new Task in one operation.\n\nin this code, an array of Task objects is created. Then, a for loop is used to create\nand start a new Task for each element in the array. Each Task prints a message to the \nconsole indicating that it has started, sleeps for a period of time proportional \nto its index in the array (simulating work), and then prints a message indicating that it has completed. \n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsikatikenmogne%2Ftpl-csharp-workshop","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsikatikenmogne%2Ftpl-csharp-workshop","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsikatikenmogne%2Ftpl-csharp-workshop/lists"}