Parallel Programming with Microsoft .NET

Reviewed: Book Companion Release 1.0 (Apr 24, 2013)

db7uk — Wed, 24 Apr 2013 09:38:23 GMT

Rated 5 Stars (out of 5) - This is probably one of the best books on parallel programming. TPL is a fantastic technology and used right, can really change the way you develop applications.

Reviewed: Book Companion Release 1.0 (十二月 16, 2012)

yiyi11yiyi — Mon, 17 Dec 2012 05:29:37 GMT

Rated 5 Stars (out of 5) - very very good , let me read more times

Closed Issue: Pipeline diagram error [23496]

AdeMiller — Mon, 22 Oct 2012 20:34:08 GMT

On the Pipelines page, the figure 1's arrow between Read Strings and Buffer 1 incorrectly goes from the buffer to the processing element. Instead the arrow must go from the processing element to the buffer, as indicated by the text below the diagram:

For example, the Read Strings task reads from a source and writes to buffer 1.

http://msdn.microsoft.com/en-us/library/ff963548.aspx
Comments:

This is now resolved on the MSDN site. I got the image updated.

David. My comments were intended to convey updates as I worked on the issue, hence "Sent" not "Send". Sorry for any confusion.

Thanks for bringing this to our attention.

Ade

Commented Issue: Pipeline diagram error [23496]

daviburg — Fri, 19 Oct 2012 17:44:52 GMT

How? The MSDN page is redirecting here to CodePlex for community feedback.

Source code checked in, #69940

AdeMiller — Fri, 19 Oct 2012 04:54:33 GMT

Fix for issue 19190. Trend.Predict(double ordinate) parameter incorrectly named.

Commented Issue: Pipeline diagram error [23496]

AdeMiller — Fri, 19 Oct 2012 04:41:21 GMT

Sent correction to the MSDN team.

Closed Issue: Trend.Predict(double ordinate) [19190]

AdeMiller — Fri, 19 Oct 2012 04:36:08 GMT

The argument of Microsoft.Practices.ParallelGuideSamples.Utilities.Trend.Predict(double ordinate) should be called abscissa according to the mathematical definition.

Comments:

Resolved in changeset 69939.

Source code checked in, #69939

AdeMiller — Fri, 19 Oct 2012 04:35:22 GMT

Fix for issue 19190. Trend.Predict(double ordinate) parameter incorrectly named.

Commented Issue: Trend.Predict(double ordinate) [19190]

AdeMiller — Fri, 19 Oct 2012 04:05:27 GMT

The argument of Microsoft.Practices.ParallelGuideSamples.Utilities.Trend.Predict(double ordinate) should be called abscissa according to the mathematical definition.

Comments: ** Comment from web user: AdeMiller **

This doesn't appear in the book text so it can be updated in the code.

Updated Wiki: Documentation

AdeMiller — Fri, 19 Oct 2012 03:54:38 GMT

The samples here are described in the book. There isn't really any documentation in addition to this. If you find bugs or other issues with the samples please use the Issue Tracker. If you find errors in the book text please submit it to the O'Reilly Errata page.

Closed Issue: Book Errata [18665]

AdeMiller — Fri, 19 Oct 2012 03:09:11 GMT

This issue is designed for tracking errata in the book text. Things like minor typos.
 
*Page 65*
 
On page 65 of the Preliminary Draft there is a typo: "form" should be "from." This is found in the following text: 
 
"Bypassing the Thread Pool If you don’t want a task to use a worker thread **form** the thread pool, you can create a new thread for its dedicated use."

Comments:

All the comments here have been migrated to the O'Reilly errata page.

http://www.oreillynet.com/oreilly/authors/errata.csp?b=0790145310262

Commented Issue: Pipeline diagram error [23496]

AdeMiller — Fri, 19 Oct 2012 02:42:13 GMT

This is only an issue in the MSDN content. They have an incorrect version of the image.

Created Issue: Pipeline diagram error [23496]

daviburg — Mon, 15 Oct 2012 22:43:21 GMT

On the "Pipelines" the figure 1 arrow between "Read Strings" and "Buffer 1" incorrectly goes from the buffer to the processing element. Instead the arrow must go from the processing element to the buffer, as indicated by the text below the diagram:

"For example, the "Read Strings" task reads from a source and writes to buffer 1."

http://msdn.microsoft.com/en-us/library/ff963548.aspx

Source code checked in, #69709

Project Collection Service Accounts — Mon, 01 Oct 2012 22:10:56 GMT

Upgrade: New Version of LabDefaultTemplate.xaml. To upgrade your build definitions, please visit the following link: http://go.microsoft.com/fwlink/?LinkId=254563

Source code checked in, #69708

Project Collection Service Accounts — Mon, 01 Oct 2012 22:06:45 GMT

Checked in by server upgrade

Updated Wiki: Home

AdeMiller — Fri, 29 Jun 2012 04:50:42 GMT

Parallel Programming with Microsoft .NET

Design Patterns for Decomposition and Coordination on Multicore Architectures
Colin Campbell, Ralph Johnson, Ade Miller and Stephen Toub. Foreword by Tony Hey

A book that introduces .NET programmers to patterns for including parallelism in their applications. Examples of these patterns are parallel loops, parallel tasks and data aggregation with map-reduce. Each pattern has its own chapter. Each chapter includes a description of the problem, an example of where the pattern is applicable, and code that implements the solution. On this site you will find; a preliminary draft of the book, the accompanying code samples and answers to the end of chapter questions.

Order the hardcopy book or buy the eBook from O’Reilly

$29.99 for the hardcopy, $23.99 for the eBook.
Also on Safari Books online and Amazon.com.

Read the book online in the MSDN Library

Read the book content for free on MSDN!

Download the samples for each chapter in C#, Visual Basic and F#

Blog posts about the F# samples

The samples are written in C#, F# and Visual Basic and use the new parallel programming model that shipped with Visual Studio 2010. The samples use the parallel features of the .NET Framework version 4, which includes the Task Parallel Library (TPL) and Parallel LINQ (PLINQ).

Demos and Talks

The demo that does along with the TechEd 2010 parallel patterns talk is also available. This is essentially the sample from Chapter 5 of “Parallel Programming with Microsoft .NET” with additional work to show additional patterns used within the same sample to enhance performance of the individual steps within the overall workflow. It also has a much nicer UI and checkboxes that allow the user to select parallel and sequential versions of different parts of the application.

Watch a video of Patterns of Parallel Programming talk at TechEd 2010

Talk source code and screenshots

What about C++?

Interested in parallel programming but prefer C++? We have also produced a companion book for C++ developers using the Parallel Patterns Library (PPL) and Asynchronous Agents Library. You can find out more about it on our other CodePlex site Parallel Programming with Microsoft Visual C++.

System Requirements

You will need .NET 4 and at least Visual Studio 2010 Professional to run the samples. However, you will need Visual Studio 2010 Ultimate to use some the parallel diagnostic tools such as the Concurrency Visualizer.

Relevant Blogs

Here are some blogs that will keep you up to date with what’s happening with this guide and with parallel programming at Microsoft.

Ade Miller: #2782 - patterns & practices development manager and book author.

Stephen Toub: .NET, MSDN Magazine, and other Adventures in Life Parallel Extensions for .NET team Program Manager and book author.

TomasP.NET - F# programming, including a series of blog posts on the F# versions of the book samples.

Parallel Programming with .NET – The Parallel Extensions for .NET Team blog.

Patterns for Parallel Programming: Understanding and Applying Parallel Patterns with the .NET Framework 4 - Stephen Toub – A white paper from one of the book’s authors.

Samples for Parallel Programming with the .NET Framework 4 – Additional samples provided by the Parallel Extensions for .NET team.

Reviewed: Book Companion Release 1.0 (Mar 31, 2012)

Zaia — Sun, 01 Apr 2012 03:44:35 GMT

Rated 5 Stars (out of 5) - A must read book, essential for server side applications and multi-repositories data consumption applications. Parallel programming is a practical abstraction to Multi-threading coding.

Reviewed: Book Companion Release 1.0 (Mar 31, 2012)

Zaia — Sun, 01 Apr 2012 03:43:27 GMT

New Post: Parallel Programming with Microsoft .NET 2nd Edition?

AdeMiller — Tue, 27 Dec 2011 11:25:58 GMT

Right now we don't have any plans to do another edition based on the Rx although I have considered doing another additional suppliment to cover the new additions in .NET 4.5; the dataflow and async extensions.

Ade

New Post: ParallelQuickSort fails with zeros array

AdeMiller — Tue, 27 Dec 2011 11:23:26 GMT

Hi Lionel,

I can repro your problem for large arrays of zeros. QuickSort, the algorithm used here, is known to perform very poorly for arrays containing only a few duplicated values. See:

http://www.angelfire.com/pq/jamesbarbetti/articles/sorting/001_QuicksortIsBroken.htm

http://algs4.cs.princeton.edu/23quicksort/

In this case it scales as order N*N. So I'm not sure that it hangs but it does run very slowly. My experiments show it to be running and making progress.

Ade