Parallel Extensions

Question

Parallel Extensions in .NET 4.0

Vulpes · Answer

Here's a very simple example of using Parallel.For and Parallel.ForEach. In practice of course this would only be worth doing for a large array: using System; using System.Threading.Tasks; class Test { static void Main() { int[] ia = new int[20]; Initialize(ia); // non-parallel loop for(int i = 0; i PrintArray(ia); // parallel for loop Initialize(ia); Parallel.For(0 20 i => Doubler(ref ia[i])); PrintArray(ia); // parallel foreach loop Initialize(ia); Parallel.ForEach(ia i => Doubler(ref ia[i])); PrintArray(ia); Console.ReadKey(); } static void Initialize(int[] ia) { for(int i = 0; i } static void Doubler(ref int i) { i = 2 * i; } static void PrintArray(int[] ia) { foreach(int i in ia) Console.Write({0}  i); Console.WriteLine(); } } Notice that the second argument of Parallel.For is the 'exclusive' end index of the iteration. So to iterate from 0 to 19 you need to specify arguments of 0 and 20.

Arjun Panwar · Answer

hi Thanks Vulpes

Arjun Panwar · Answer

how to perform Parallel.For and Parallel.ForEach in .Net 4.0.

Arjun Panwar · Answer

how to perform Parallel.For and Parallel.ForEach in .Net 4.0.

Sam Hobbs · Answer

Is this a question? If you want to know what it is then I hope these help. I found them easily by doing a MSDN search. As Vulpes indicates there are articles in this web site that will help. If you read the MSDN articles then you will know what to look for in the articles here. Released! Parallel Extensions to the .NET Framework June 2008 CTP - Parallel Programming with .NET - Site Home - MSDN Blogs 10-4 Episode 6: Parallel Extensions | 10-4 | Channel 9 Parallel Extensions: Building Multicore Applications with .NET Parallel Extensions to the .NET Framework Forum

Vulpes · Answer

Whatever the problem is there's plenty of material to look at in our 'Recommended Articles' in the sidebar to the right of this thread.

Akash Ahlawat · Answer

What problem u r facing in it??