Get Started with Intel® oneAPI Threading Building Blocks (oneTBB)
Intel® oneAPI Threading Building Blocks (oneTBB) enables you to simplify parallel programming by breaking computation into parallel running tasks. oneTBB is available as a stand-alone product and as part of the Intel® oneAPI Base Toolkit.
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. 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
System Requirements
Refer to the oneTBB System Requirements.
Before You Begin
Download oneTBB as a stand-alone product or as a part of the Intel(R) oneAPI Base Toolkit.
After installing oneTBB, you need to set the environment variables:
Go to the oneTBB installation directory (
<install_dir>
). By default,<install_dir>
is the following:On Linux* OS:
For superusers (root):
/opt/intel/oneapi
For ordinary users (non-root):
$HOME/intel/oneapi
On Windows* OS:
<Program Files>\Intel\oneAPI
Set the environment variables, using the script in <install_dir>, by running
On Linux* OS:
vars.{sh|csh} in <install_dir>/tbb/latest/env
On Windows* OS:
vars.bat in <install_dir>/tbb/latest/env
Example
Below you can find a typical example for a oneTBB algorithm. The sample calculates a sum of all integer numbers from 1 to 100.
int sum = oneapi::tbb::parallel_reduce(oneapi::tbb::blocked_range<int>(1,101), 0,
[](oneapi::tbb::blocked_range<int> const& r, int init) -> int {
for (int v = r.begin(); v != r.end(); v++ ) {
init += v;
}
return init;
},
[](int lhs, int rhs) -> int {
return lhs + rhs;
}
);
Find more
Use these resources if you need support with oneTBB. |
|
Find up-to-date information about the product, including detailed notes, known issues, and changes. |
|
Learn to use oneTBB. |
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Find oneTBB implementation in open source. |
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