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 mechanisms for scalability and performance. 

Intel® Threading Building Blocks 2.2 Commercial Version Available Now:  The commercial version is available to evaluate and the new commercially aligned release is available for download now.  Learn more about the great additions to TBB in 2.2 in Terry Wilmarth's and James Reinders' blogs on the Intel Software Network.

• Read Intel's Announcement
• Read Terry Wilmarth's blog What's New in Intel® TBB 2.2?
• Read James Reinders' blogs about 2.2:
  
  • Version 2.2, Intel Threading Building Blocks, worth a look
  • parallel_for is easier with lambdas, Intel Threading Building Blocks
  • "Hello Lambdas" C++ 0x, a quick guide to Lambdas in C++

Epic Games Unreal Engine and Intel® TBB 2.2:  August 4, 2009: Epic Games, Inc. today announced that Intel® Threading Building Blocks (Intel® TBB) 2.2 has been incorporated into Unreal Engine 3.  As part of this collaboration, Intel has joined Epic’s premier Integrated Partners Program (IPP). 

• Read Epic Games' Press Release
• Read Intel Software Network's Article

Latest News

PC Games Hardware: Ric Broadhurst of Creative Assembly talks about using TBB in Napoleon: Total War - Better performance coming with the Empire add-on? 

Intel® Software Network: In Optimizing Without Breaking a Sweat authors John O'Neill, Alex Wells, and Matt Walsh show how to use TBB 2.2's automatic memory allocator replacement to get great performance improvements in DreamWorks Animation's rendering, animation, and special effects applications.

User Success Page Available: Check out who is having success using TBB here.  If you have something you would like to say about TBB let us know by emailing us at tbb-users@lists.sourceforge.net. 

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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.