Visual Basic® 2010 Unleashed

Parallel.For Loop

Writing a parallel For loop is an easy task, although it is important to remember that you can generally take advantage of parallelism against intensive and time-consuming operations. Imagine you want to invoke the code defined at the beginning of this section for a finite number of times to simulate an intensive processing. This is how you would do it with a classic For loop:

Nothing new here; the code simply writes the thread identifier at each step and simulates an intensive processing. If you run the code, you get the result shown in Figure 45.1 where you can see how all the work relies on a single thread and how the loop ...