Understanding Parallel Programming in C#
Dive into the world of synchronous actions, parallel processing, and asynchronous tasks in C#. Learn how to efficiently run multiple operations concurrently, optimize performance, and handle slow actions with practical examples and insights.
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Presentation Transcript
All are synchronous = all wait for all Actions to execute in ThreadPool static void Parallel.Invoke(params Action[] actions) static ... Parallel.For(int fromInclusive, int toExclusive, Action<int> body) static ... Parallel.ForEach<T>(IEnumerable<T> source, Action<T> body)
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R = f1() + f2(); temp1 = f1(); temp2 = f2(); R = temp1 + temp2; slow slow
Run slow action in parallel (or concurrently) task1 = f1Async(); temp2 = f2(); R = task1.Result + temp2; R = f1() + f2(); slow slow temp1 = f1(); temp2 = f2(); R = temp1 + temp2; slow slow
Run slow action in parallel (or concurrently) task1 = f1Async(); temp2 = f2(); R = task1.Result + temp2; R = f1() + f2(); slow slow temp1 = f1(); temp2 = f2(); R = temp1 + temp2; slow slow task1 = f1Async(); temp2 = f2(); task1.Wait(); temp1 = task1.Result; R = temp1 + temp2;
task1 = f1Async(); task2 = f2Async(); R = task1.Result + temp2.Result; task1 = f1Async(); temp2 = f2(); R = task1.Result + temp2; R = f1() + f2(); temp1 = f1(); temp2 = f2(); R = temp1 + temp2; slow slow task1 = f1Async(); temp2 = f2(); task1.Wait(); temp1 = task1.Result; R = temp1 + temp2;
task1 = f1Async(); task2 = f2Async(); R = task1.Result + temp2.Result; task1 = f1Async(); temp2 = f2(); R = task1.Result + temp2; R = f1() + f2(); temp1 = f1(); temp2 = f2(); R = temp1 + temp2; slow slow task1 = f1Async(); temp2 = f2(); task1.Wait(); temp1 = task1.Result; R = temp1 + temp2; task1 = f1Async(); task2 = f2Async(); temp1 = task1.Result; temp2 = task2.Result; R = temp1 + temp2;
task1 = f1Async(); task2 = f2Async(); R = task1.Result + temp2.Result; task1 = f1Async(); temp2 = f2(); R = task1.Result + temp2; R = f1() + f2(); temp1 = f1(); temp2 = f2(); R = temp1 + temp2; slow slow task1 = f1Async(); temp2 = f2(); task1.Wait(); temp1 = task1.Result; R = temp1 + temp2; task1 = f1Async(); task2 = f2Async(); temp1 = task1.Result; temp2 = task2.Result; R = temp1 + temp2; task1 = f1Async(); task2 = f2Async(); Task.WaitAll(task1, task2); R = task1.Result + task2.Result;
task1 = f1Async(); task2 = f2Async(); R = task1.Result + temp2.Result; task1 = f1Async(); temp2 = f2(); R = task1.Result + temp2; R = f1() + f2(); temp1 = f1(); temp2 = f2(); R = temp1 + temp2; slow slow task1 = f1Async(); temp2 = f2(); task1.Wait(); temp1 = task1.Result; R = temp1 + temp2; task1 = f1Async(); task2 = f2Async(); temp1 = task1.Result; temp2 = task2.Result; R = temp1 + temp2; task1 = f1Async(); task2 = f2Async(); Task.WaitAll(task1, task2); R = task1.Result + task2.Result; static void Task.WaitAll(params Task[] tasks) static int Task.WaitAny(params Task[] tasks)
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Completed FastFoodPorkFromStock.csproj building restaurant cooking FastFood hiring oompa loompas ? Completed Completed future HamburgerPatty Task.FromResult<>() grinding meat MeatProcessingPlant ? Completed Completed building pig pen future Pork future Pork hamburger Task.FromResult<>() feeding pigs PigProducer ? Completed Completed future Corn future Corn Task.FromResult<>() CropFarmer Images by brgfx & topntp26 & macrovector & Smashicons https://www.freepik.com/author/brgfx https://www.freepik.com/author/topntp26 https://www.freepik.com/author/macrovector https://www.flaticon.com/free-icons/mincer
Completed FastFoodFuturePork.csproj building restaurant cooking waiting ? Completed FastFood future HamburgerPatty future HamburgerPatty hiring oompa loompas promise promise .SetResult() grinding meat waiting ? Completed MeatProcessingPlant future Pork future Pork promise promise building pig pen hamburger .SetResult() feeding pigs PigProducer ? Completed Completed future Corn future Corn Task.FromResult<>() CropFarmer Images by brgfx & topntp26 & macrovector & Smashicons https://www.freepik.com/author/brgfx https://www.freepik.com/author/topntp26 https://www.freepik.com/author/macrovector https://www.flaticon.com/free-icons/mincer
