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C++ parallel-programming

Open-source C++ projects categorized as parallel-programming
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parallel-computing Multithreading Cuda GPU CPP
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Top 10 C++ parallel-programming Projects

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  1. Taskflow

    A General-purpose Task-parallel Programming System in C++

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  3. parallel-hashmap

    A family of header-only, very fast and memory-friendly hashmap and btree containers.

    Project mention: Comprehensive C++ Hashmap Benchmarks (2022) | news.ycombinator.com | 2026-03-30

  4. cccl

    CUDA Core Compute Libraries

    Project mention: Delivering the Missing Building Blocks for Nvidia CUDA Kernel Fusion in Python | news.ycombinator.com | 2025-07-16

    There’s an extensive change-log supporting the CCCL 3.0 release on GitHub from 3 hours ago: https://github.com/NVIDIA/cccl/releases/tag/v3.0.0

  5. oneMath

    oneAPI Math Library (oneMath)

  6. grab

    experimental and very fast implementation of a grep (by stealth)

  7. CPURasterizer

    CPU Based Rasterizer Engine

  8. LLVM-Guide

    LLVM (Low Level Virtual Machine) Guide. Learn all about the compiler infrastructure, which is designed for compile-time, link-time, run-time, and "idle-time" optimization of programs. Originally implemented for C/C++ , though, has a variety of front-ends, including Java, Python, etc.

  9. librapid

    A highly optimised C++ library for mathematical applications and neural networks.

  10. threading_library

    A simple & header-only threading library written in C++20 .

  11. turkishsieve

    The Turkish Sieve Methodology: Deterministic Computation of Twin and Cousin Prime Pairs Using an N/6 Bit Data Structure

    Project mention: Show HN: Turkish Sieve Engine – Full Prime Statistics Up to 10^14 and V2 Preview | news.ycombinator.com | 2026-03-12
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++ parallel-programming related posts

  • The Way We Are Building Event-Driven Applications Is Misguided

    1 project | news.ycombinator.com | 28 May 2024

  • Improvements of Clojure in his time

    1 project | /r/Clojure | 16 Jun 2023

  • Taskflow: A General-Purpose Parallel and Heterogeneous Task Programming System

    1 project | news.ycombinator.com | 7 May 2023

  • How to go from intermediate to advance in C++?

    1 project | /r/cpp_questions | 18 Apr 2023

  • gcl v1.1 released - Graph Concurrent Library for C++

    2 projects | /r/cpp | 27 Jan 2023

  • std::execution from the metal up - Paul Bendixen - Meeting C++ 2022

    2 projects | /r/cpp | 13 Jan 2023

  • Proper abstraction for this?

    1 project | /r/cpp_questions | 2 Jan 2023
  • A note from our sponsor - SaaSHub
    www.saashub.com | 22 Jun 2026
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Index

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

# Project Stars
1 Taskflow 12,017
2 parallel-hashmap 3,192
3 cccl 2,388
4 oneMath 766
5 grab 263
6 CPURasterizer 200
7 LLVM-Guide 196
8 librapid 180
9 threading_library 18
10 turkishsieve 11

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