User Guide

Get Started with oneAPI
Threading Building Blocks
(oneTBB)
1
oneAPI Threading Building Blocks (oneTBB) is a runtime-based parallel programming model for C++ code
that uses threads. It consists of a template-based runtime library to help you harness the latent performance
of multi-core processors.
oneTBB enables you to simplify parallel programming by breaking computation into parallel running tasks.
Within a single process, parallelism is carried out through threads, an operating system mechanism that
allows the same or different sets of instructions to be executed simultaneously.
Here you can see one of the possible executions of tasks by threads.
Use oneTBB to write scalable applications that:
• Specify logical parallel structure instead of threads
• Emphasize data-parallel programming
• Take advantage of concurrent collections and parallel algorithms
oneTBB supports nested parallelism and load balancing. It means that you can use the library without being
worried about oversubscribing a system. oneTBB is available as a stand-alone product and as part of the
Intel
®
oneAPI Base Toolkit.
System Requirements
Refer to the oneTBB System Requirements.
Download Intel(R) oneAPI Threading Building Blocks (oneTBB)
Download oneTBB as a stand-alone product or as a part of the Intel(R) oneAPI Base Toolkit. See Installation
Guide for a stand-alone version (Windows* OS and Linux* OS) and Intel(R) oneAPI Toolkits Installation
Guide.
Get Started with oneAPI Threading Building Blocks (oneTBB) 1
3