Implementing Map/Reduce with PLINQ

This recipe will describe how to implement the Map/Reduce pattern while using PLINQ.

Getting ready

To begin with this recipe, you will need a running Visual Studio 2012. There are no other prerequisites. The source code for this recipe can be found at 7644_Code\Chapter10\Recipe4.

How to do it...

To understand how to implement Map/Reduce with PLINQ, perform the following steps:

1. Start Visual Studio 2012. Create a new C# Console Application project.
2. In the Program.cs file, add the following using directives:

   using System;
   using System.Collections.Generic;
   using System.IO;
   using System.Linq;

3. Add the following code snippet below the Main method:

   private static readonly char[] delimiters =Enumerable.Range(0, 256).Select(i => (char)i).Where(c =>!char.IsLetterOrDigit(c)).ToArray();
   
   private const string textToParse = @"
   Call me Ishmael. Some years ago - never mind how long precisely - having little or no money in my purse, and nothing particular to interest...