C++ Parallelism

Open-source C++ projects categorized as Parallelism
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Top 7 C++ Parallelism Projects

Parallelism

  1. oneTBB

    oneAPI Threading Building Blocks (oneTBB)

  2. JetBrains

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  3. HPX

    The C++ Standard Library for Parallelism and Concurrency

    Project mention: HPX v1.11.0: The C++ Standards Library for Parallelism and Concurrency | news.ycombinator.com | 2025-06-29

  4. parlaylib

    A Toolkit for Programming Parallel Algorithms on Shared-Memory Multicore Machines

  5. YACLib

    Yet Another Concurrency Library

  6. todds

    A CPU-based DDS encoder optimized for fast batch conversions with high encoding quality.

  7. Parallel-And-Concurrent-Programming

    Concurrent and parallel programming might seem complex, but this guide simplifies it. Learn about sequential vs non-sequential programming, processes, and threads. Explore examples in popular languages like C++, Python, and JavaScript to apply your new knowledge to your projects.

  8. pRIblast

    pRIblast is a high efficient, parallel application for extensive lncRNA-RNA interaction analysis

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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C++ Parallelism related posts

  • HPX v1.11.0: The C++ Standards Library for Parallelism and Concurrency

    1 project | news.ycombinator.com | 29 Jun 2025

  • Help installing EngineFixesVR

    2 projects | /r/skyrimvr | 20 Mar 2023

  • Use CMake to build a submodule (dependency) and install to specific location?

    1 project | /r/cpp_questions | 4 Feb 2023

  • Task scheduler with CPU affinity

    1 project | /r/cpp_questions | 2 Feb 2023

  • What are some C++ projects with high quality code that I can read through?

    2 projects | /r/learnprogramming | 16 Jan 2023

  • CK2 doesn't launch on macOS Ventura

    1 project | /r/CrusaderKings | 28 Nov 2022

  • Getting started with first HPC project

    1 project | /r/cpp | 23 Nov 2022
  • A note from our sponsor - Sevalla
    sevalla.com | 1 Sep 2025
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Index

What are some of the best open-source Parallelism projects in C++? This list will help you:

# Project Stars
1 oneTBB 6,295
2 HPX 2,710
3 parlaylib 371
4 YACLib 280
5 todds 23
6 Parallel-And-Concurrent-Programming 11
7 pRIblast 2

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