Intel® Advisor User Guide

ID 766448
Date 7/13/2023
Public

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Nested Parallelism in Flow Graph Analyzer

The Flow Graph Analyzer supports visualization of applications that contain multiple levels of parallelism, such as nested Intel® oneAPI Threading Building Blocks (oneTBB) algorithms and OpenMP* parallel regions. This feature requires additional support from the parallel runtime libraries and can be used in combination with a oneTBB flow graph.

The sample code below is an example of nested parallelism that combines a oneTBB flow graph, a oneTBBparallel_for algorithm, and an OpenMP* parallel region.