How is the usage of Parallel in C#?

1 year ago
William Carter
1 minute

In C#, the Parallel class offers a simple way to concurrently execute multiple tasks. By using the Parallel class, you can easily break down a task into multiple subtasks and then execute these subtasks in parallel.

The Parallel class provides some static methods, with the most commonly used ones being Parallel.For and Parallel.ForEach. These two methods are used for parallel execution of a for loop and elements in a collection, respectively.

Example for parallel execution of a for loop using the Parallel.For method.

Parallel.For(0, 10, i =>
{
    Console.WriteLine(i);
});

By using the Parallel.ForEach method, elements in a collection can be executed in parallel, as shown below:

List<int> numbers = new List<int> { 1, 2, 3, 4, 5 };
Parallel.ForEach(numbers, number =>
{
    Console.WriteLine(number);
});

By using the Parallel class, the performance of a program can be maximized by taking advantage of multi-core processors. It is important to note that parallel execution may result in thread safety issues, so caution should be taken when accessing shared resources during parallel task execution.

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