"Parallelism in .NET" Series by Reed Copsey, Jr.

"Parallelism in .NET" Series by Reed Copsey, Jr.

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Reed Copsey, Jr. has been writing a great series of articles on parallelism with the .NET Framework 4. The articles provide the insights of an expert developer who has been using parallelism with .NET to speed up real-world programs. Recommended reading.

Parallelism in .NET

Introduction

Part 1, Decomposition 

Part 2, Simple Imperative Data Parallelism

Part 3, Imperative Data Parallelism: Early Termination

Part 4, Imperative Data Parallelism: Aggregation

Part 5, Partitioning of Work

Part 6, Declarative Data Parallelism

Part 7, Some Differences between PLINQ and LINQ to Objects

Part 8, PLINQ’s ForAll Method

Part 9, Configuration in PLINQ and TPL

Part 10, Cancellation in PLINQ and the Parallel class

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  • Thanks for the plug, Igor!  

    FYI - I'm planning to continue this series, hopefully covering all of the basics of PLINQ and the TPL.

  • Is there any reason to use Parallelism in an ASP.NET Environment. In other words, should I use Parallel.For in an ASP.NET page code behind or does IIS take care of Parallelism for me?

  • Adin,

    ASP.NET automatically provides a request-level parallelism. From what I understand, handlers for different requests will be scheduled as different work items on the ThreadPool.

    However, you can still consider using Parallel.For for parallelism within a single request. If you have relatively few requests coming in and each request is expensive, parallelizing each request el may help you lower the latency of responses.

    Whether or not this will be beneficial depends on your particular workload. Hope this helps,

    Igor Ostrovsky

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