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oneAPI Threading Building Blocks (oneTBB) <img align="right" width="200" height="100" src="https://raw.githubusercontent.com/uxlfoundation/artwork/e98f1a7a3d305c582d02c5f532e41487b710d470/foundation/uxl-foundation-logo-horizontal-color.svg">

oneTBB is a flexible C++ library that simplifies the work of adding parallelism to complex applications, even if you are not a threading expert.

The library lets you easily write parallel programs that take full advantage of the multi-core performance. Such programs are portable, composable and have a future-proof scalability. oneTBB provides you with functions, interfaces, and classes to parallelize and scale the code. All you have to do is to use the templates.

The library differs from typical threading packages in the following ways:

• oneTBB enables you to specify logical parallelism instead of threads.
• oneTBB targets threading for performance.
• oneTBB is compatible with other threading packages.
• oneTBB emphasizes scalable, data parallel programming.
• oneTBB relies on generic programming.

Refer to oneTBB examples and samples to see how you can use the library.

oneTBB is a part of the UXL Foundation and is an implementation of oneAPI specification.

NOTE: Threading Building Blocks (TBB) is now called oneAPI Threading Building Blocks (oneTBB) to highlight that the tool is a part of the oneAPI ecosystem.

Release Information

See Release Notes and System Requirements.

Documentation

• oneTBB Specification
• oneTBB Developer Guide and Reference
• Migrating from TBB to oneTBB
• README for the CMake build system
• oneTBB Testing Approach
• Basic support for the Bazel build system
• oneTBB Discussions
• WASM Support

Installation

See Installation from Sources to learn how to install oneTBB.

Governance

The oneTBB project is governed by the UXL Foundation. You can get involved in this project in following ways:

• Join the Open Source and Specification Working Group meetings.
• Join the mailing lists for the UXL Foundation to receive meetings schedule and latest updates.
• Contribute to oneTBB project or oneTBB specification. Read CONTRIBUTING for more information.

Support

See our documentation to learn how to request help.

How to Contribute

We welcome community contributions, so check our Contributing Guidelines to learn more.

Use GitHub Issues for feature requests, bug reports, and minor inquiries. For broader questions and development-related discussions, use GitHub Discussions.

License

oneAPI Threading Building Blocks is licensed under Apache License, Version 2.0. By its terms, contributions submitted to the project are also done under that license.

* All names and brands may be claimed as the property of others.