C# Multithreaded and Parallel Programming - download pdf or read online


By Rodney Ringler

Newest machines have dual-core processors. which means the present-day laptop has the power to multitask. utilizing a number of cores skill your purposes can approach facts speedier and be extra attentive to clients. although, to totally take advantage of this on your functions, you must write multithreading code.
We will start through masking a few recommendations which have been round because the starting of .NET, together with the BackgroundWorker part, timers, and the Thread type. we are going to use projects, job factories, and parallel loops to enhance multithreaded functions at the next point than at once growing and coping with person threads. ultimately, we are going to examine the instruments visible Studio presents for debugging parallel functions, universal concurrent layout styles, and the newest updates in PLINQ and async.

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Now that we've learned about the principles of multiprocessing and multiple cores, we're ready to learn the main components of a parallel program, the processes and the threads, which is the topic of the next chapter. [ 32 ] Looking at Multithreaded Classes – BackgroundWorker C# offers a variety of ways to create and control threads in our applications. There are the Thread and ThreadPool classes, the Task Parallel Library (TPL), the Async methods, and the BackgroundWorker component. The BackgroundWorker is the original way of doing multiple things at once in C# and, to many, it has become passé and Tasks and Threads are now the preferred method.

But in actuality, in each clock cycle, each physical core executes a single software thread's instruction. Also important in our parallel development and estimation of performance gains is that we are assuming in our estimates that all hardware cores are available to our software application each clock cycle. In reality, most computers have many processes running at a given time and utilize some of the execution time of a core. [ 21 ] Understanding Multiprocessing and Multiple Cores In Windows, the Task Manager provides some useful information to see what is running and consuming hardware resources.

Analyzing the microarchitectures used in modern microprocessors is a topic for an entire book. However, we needed some knowledge about them in order to understand the parallel processing capabilities that are useful for our goals. Do not expect plutonium robots! They are still too expensive to maintain. Examining our hardware As we will see with some of the tools used to analyze a system's hardware, most count logical cores and not just physical cores. This is important to remember because of the limitation mentioned in the previous section where a CPU only executes an instruction each clock cycle for a physical core.

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