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  • Blog Post: Using the Concurrency Visualizer to Pick the Best Way to Parallelize a Data Set

    In the application I am working on, there is a small array of objects (10 - 100 items) and a large array of objects (10,000 - 100,000). I want to know how close each object in the small array is to each object in the large array. Since calculating the value for each candidate item from the small array...
  • Blog Post: Concurrency Visualizer as a Microscope for Execution Dynamics

    This is the picture that Concurrency Visualizer team used on the title page of internal specs. It actually reveals how most of us think about our product: not as a profiler (though you can get decent sample profile from it by clicking the green “Execution” category in the legend), and not even as a performance...
  • Blog Post: Tuning a Parallel LINQ File Search Application

    This post explores the performance issues that arise when using PLINQ to parallelize queries, and illustrates how the Concurrency Visualizer in Visual Studio 2010 can be a valuable tool in identifying performance bottlenecks and making efficient and profitable parallelization choices. The subject of...
  • Blog Post: Tuning a Parallel Ray Tracer in F#

    One of the samples that is included with the Parallel Programming Samples for .NET 4 is a simple Ray Tracer.  This ray tracer provides a nice visual way of seeing the benefits of .NET 4 parallelism features, as well as giving insights into the way work stealing happens under the hood.  The...
  • Blog Post: Parallel Performance Case Study: Finding References to Parallel Extensions

    Stephen Toub                                                                                                      ...
  • Blog Post: Overview of the Parallel Dwarfs project on Codeplex

    The Parallel Motifs, or Parallel Dwarfs as they are sometimes called, are a collection of algorithm families that are important to parallel computing as they are known to be compute bound. More computational cycles – if applied judiciously – will result in faster execution on a given data set for many...
  • Blog Post: A Fresher Parallel Computing Developer Center on MSDN

    For those of you who haven’t seen it, the Parallel Computing developer center is a comprehensive source of lessons, highlights, and resources for developers interested in parallelism.  It has now been remodeled with a much fresher, organized look.  With more attention than ever before, it is...
  • Blog Post: Debugging Parallel applications in Visual Studio 2010

    In addition to the concurrency visualizer feature that we have been blogging about here, there is great debugging support for parallel applications in Visual Studio 2010. I have created a lot of content for the parallel debugger windows (Parallel Tasks and Parallel Stacks) and have gathered all the links...
  • Blog Post: Beginner's Guide to Profiling Parallel Apps Part IV

    Welcome to fourth and final installment of the "beginner's guide" series.  In my previous entry, I discussed the "Threads" view of the Concurrency Visualizer.  In this entry, I will discuss the "Cores" view. Using the same set of results as the previous entries...
  • Blog Post: Beginner's Guide to Profiling Parallel Apps Part III

    Hello and welcome to the third installment of the "beginner's guide" series.  While I discussed the "CPU Utilization" view last time, I will now discuss the "Threads" view in the profiler. Working with the same code as in my last post, I will now re-examine the performance...
  • Blog Post: Beginner's Guide to Profiling Parallel Apps Part II

    In my previous post, I described how to profile your multithreaded application using the Visual Studio Performance Wizard.  As I mentioned, the summary report presented after profiling yielded three options.  In this entry, I will discuss the "CPU Utilization" option.  After...
  • Blog Post: Beginner's Guide to Profiling Parallel Apps Part I

    Hello world!  This is the first of four "beginner's guide" installments.  Though individiuals more familiar with concurrency issues may find it easier to get started with our tools, my team and I are interested in making it easier for a broader range of developers to quickly get started...
  • Blog Post: Parallel Profiling Capabilities Demystified

    We are very excited to further improve the parallel capabilites of the Visual Studio 2010 profiler with the release of beta 2. One of the features that we worked on, "demystify", allows you to click anywhere within the tool and get a customized help page explaining what you clicked on. Unfortunately...
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