Chapter 19
Parallel Programming Using Tasks and Threads
What's in this chapter?
Understanding the task-based programming model, the Task Parallel Library, and its related hardware technologies
Launching, controlling, managing, and synchronizing parallel tasks
Refactoring loops to run them in parallel using Parallel.For and Parallel.ForEach
Transforming existing sequential code into parallelized code
Measuring the speed gain and the scalability offered by parallelized code
Working with different degrees of parallelism
Understanding the advantages of working with concurrent collections
Implementing a simple parallel producer-consumer pattern
Parallelizing LINQ queries using PLINQ
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In the last few years, multicore technology has become the mainstream in CPU designs, and microprocessor manufacturers continue to improve their processing power. However, the shift to multicore is an inflexion point for software design philosophy.
This chapter is about the lightweight concurrency model introduced by Visual Basic 2010 with .NET Framework 4 and extended in Visual Basic 2012 with .NET Framework 4.5. A comprehensive treatment of the challenges offered by the new multicore designs could easily fill 600 ...
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