Parallel For
Loops
One first form of data parallelism is exposed by the Parallel.For
set of methods, which provide a parallel for
loop. The idea of a parallel for
loop is to run the iterations of the loop in parallel, followed by a wait operation for all the iterations to complete. This is similar to the Parallel.Invoke
construct we looked at in the “Parallel Invocation” section, earlier in this chapter.
An example of one of the simplest overloads of Parallel.For
is shown here. Notice how similar this loop looks to a regular C# for
loop, thanks to the concise syntax of lambda expressions:
This typical example of the parallel for
loop is used to ...
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