Parallel For Loop in C# Programming

R M Shahidul Islam Shahed
4 min readJul 11, 2023

The Parallel For Loop in C# is a construct provided by the .NET Framework that allows for the parallel execution of a for loop. It enables the distribution of workload across multiple threads or processors, resulting in potentially faster execution times for computationally intensive tasks.

Parallel For Loop in C# Programming

The Parallel.For loop is similar to the traditional for loop in C#, but it automatically divides the loop iterations among available threads or processors for concurrent execution. Each iteration of the loop is independent of others and can be executed in parallel, taking advantage of modern multi-core processors.

Here’s the basic syntax of the Parallel For Loop in C#:

Parallel.For(start, end, i =>
{
// Code to be executed for each iteration
});

In C#, the Parallel.For loop is used to execute a for loop in parallel, distributing the workload across multiple threads or processors. It allows for concurrent execution of iterations, resulting in potentially faster execution times for computationally intensive tasks.

Here’s an example of how to use the Parallel.For loop in C#:

using System;
using System.Threading.Tasks;

class Program
{
static void Main()
{
// Define the range of values for the loop
int start = 1;
int end = 10;

//…

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