Welcome to Threading Building Blocks.org!

Intel® Threading Building Blocks (TBB) offers a rich and complete approach to expressing parallelism in a C++ program. It is a library that helps you take advantage of multi-core processor performance without having to be a threading expert. Threading Building Blocks is not just a threads-replacement library. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability and performance.

Intel® Threading Building Blocks 2.1 Commercial Version Available Now

We are proud to announce the release of the new version of TBB today.  The commercial version is available to evaluate and the new commercially aligned release is available for download now.  Learn more about the great new additions to TBB on the What's New page.

• Read Intel’s Announcement
• Read about TBB 2.1 at Dr. Dobb's Journal, The Register, InternetNews, InfoWorld, HPCwire, eWEEK, Redmond Developer News, and Linux Devices
  

Latest News

TBB Wins an InfoWorld BOSSIE: Chosen by InfoWorld Test Center editors, analysts, and reviewers, InfoWorld’s annual Best of Open Source Software awards (or Bossies, for short) celebrate the best products that open source has to offer: the best free software on the planet for businesses, their IT staffs, and their employees’ workstations.

DevX Article Series: Nicolae Popovici and Thomas Willhalm discuss how Putting Intel® Threading Building Blocks to Work can help you take advantage of the TBB task-based programming model in your code. 

Deep Shadows Ports TBB to XBOX 360*:  The Boiling Point developer announced last week that they used TBB 2.0 to make their Vital Engine threaded for cross-platform development on PC and XBOX 360.  The original contribution is available in the new Contribution Archive.  Read more at Develop Mag.

Contribution Archive Posted:  Thanks to welcome feedback from several community members we have created a Contribution Archive under the Downloads section to post community contributions to TBB.  Users can now access contributions as they are received and before they are integrated in the mainline build of TBB.

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For developers, the clear benefits of Threading Building Blocks are:

1. TBB significantly reduces the number of lines of code required to develop multithreaded applications;
2. TBB significantly reduces the programming complexity for developing multithreaded applications (by abstracting many details of thread management);
3. TBB's task manager automatically analyzes the system the software is running on, chooses the optimal number of threads, and performs load balancing that spreads out the work evenly across all processor cores;
4. As a result, TBB threaded applications automatically scale to fully utilize all available processing cores on whatever computer they run on -- including future systems that will have many more cores than are available (or affordable) today.

If you have experience developing multithreaded C++ software (new applications, or conversion of legacy applications for operation on multi-processor/multi-core systems), you owe it to yourself to experiment with Threading Building Blocks: try recoding a few sections of software you've threaded using traditional thread libraries, and notice the difference.

The links at the right provide access to TBB resources and means for you to participate in the Threading Building Blocks community. If you have a question, feel free to post it in the TBB forums. Use the top navigation bar to access TBB's documentation and download the stable or development releases. The articles below also provide a good introduction to TBB.

Thanks for visiting ThreadingBuildingBlocks.org. We hope this is just the beginning of your interest in TBB and your engagement in the Threading Building Blocks Open Source community.