Download e-book for kindle: A Parallel Programming with Microsoft Visual C++: Design by Colin Campbell

By Colin Campbell

ISBN-10: 0735651752

ISBN-13: 9780735651753

Your CPU meter exhibits an issue. One middle is operating at one hundred pc, yet all of the different cores are idle. Your program is CPU-bound, yet you're utilizing just a fraction of the computing strength of your multicore process. Is there how to recover performance?The solution, in a nutshell, is parallel programming. the place you as soon as may have written the type of sequential code that's favourite to all programmers, you presently locate that this not meets your functionality pursuits. to exploit your system’s CPU assets successfully, you must break up your program into items that could run even as. in fact, this can be more straightforward stated than performed. Parallel programming has a name for being the area of specialists and a minefield of refined, hard-to-reproduce software program defects. every body turns out to have a favourite tale a few parallel application that didn't behave as anticipated as a result of a mysterious bug.These tales may still motivate a fit appreciate for the trouble of the issues you'll face in writing your individual parallel courses. thankfully, aid has arrived. The Parallel styles Library (PPL) and the Asynchronous brokers Library introduce a brand new programming version for parallelism that considerably simplifies the task. backstage are subtle algorithms that dynamically distribute computations on multicore architectures. moreover, Microsoft® visible Studio® 2010 improvement method contains debugging and research instruments to help the hot parallel programming model.Proven layout styles are one other resource of aid. This consultant introduces you to an important and regularly used styles of parallel programming and offers executable code samples for them, utilizing PPL. whilst wondering the place to start, an exceptional position to begin is to study the styles during this booklet. See in case your challenge has any attributes that fit the six styles offered within the following chapters. If it does, delve extra deeply into the proper trend or styles and learn the pattern code.

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Read e-book online Parallel programming with Microsoft Visual C++ : design PDF

Your CPU meter exhibits an issue. One middle is working at one hundred pc, yet the entire different cores are idle. Your software is CPU-bound, yet you're utilizing just a fraction of the computing energy of your multicore method. Is there the way to recover functionality? the reply, in a nutshell, is parallel programming.

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Extra resources for A Parallel Programming with Microsoft Visual C++: Design Patterns for Decomposition and Coordination on Multicore Architectures

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Pa r a llel tasks 39 The Cost of Synchronization Locks and other synchronization operations are sometimes necessary in parallel programs. However, programmers often underestimate how much serializing operations can degrade performance. You may want to review the “Scalable Sharing of Data” section of Chapter 1, “Introduction” for guidance on how to factor synchronization into the design of your application. Well-designed applications require explicit synchronization operations less often than poorly designed applications.

Pa r a llel tasks 39 The Cost of Synchronization Locks and other synchronization operations are sometimes necessary in parallel programs. However, programmers often underestimate how much serializing operations can degrade performance. You may want to review the “Scalable Sharing of Data” section of Chapter 1, “Introduction” for guidance on how to factor synchronization into the design of your application. Well-designed applications require explicit synchronization operations less often than poorly designed applications.

Unlike lambda expressions, task handles require explicit memory management by your application. Lightweight Tasks In addition to the task_group objects that were described in this chapter, the Concurrency Runtime provides lower-level APIs that may be useful to some programmers, especially those who are adapting existing applications that create many threads. However, in general it is recommended that programmers start with the Parallel Patterns Library (PPL) or the Asynchronous Agents Library. See the “Lightweight Tasks” section of Appendix A, “The Task Scheduler and Resource Manager” for more information.

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A Parallel Programming with Microsoft Visual C++: Design Patterns for Decomposition and Coordination on Multicore Architectures by Colin Campbell


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