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Top 23 C++ parallel-computing Projects
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Project mention: Show HN: Coros – A Modern C++ Library for Task Parallelism | news.ycombinator.com | 2024-09-25
Martin, have you had a look at https://github.com/taskflow/taskflow ?
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Thanks for the added context on the builds! As "foreign" BW player and fellow speech processing researcher, I agree shallow contextual biasing should help. While not difficult to implement, most generally available ASR solutions don't make it easy to use. There's a PR in ctranslate2 implementing the same feature so that it could be exposed in faster-whisper: https://github.com/OpenNMT/CTranslate2/pull/1789
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kokkos
Kokkos C++ Performance Portability Programming Ecosystem: The Programming Model - Parallel Execution and Memory Abstraction
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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
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Project mention: Understanding SIMD: Infinite Complexity of Trivial Problems | news.ycombinator.com | 2024-11-30
I'm surprised no one has mentioned Vc. I found ispc clunky and not as performant, and std::simd didn't support some useful math ops like rsqrt. Vc has been around for years, I have no trouble including it in my codes, it has masking and many of the most useful math ops, and I can get over 1 TF/s on a consumer-grade Ryzen and at least 3 TF/s on the big Epyc CPUs.
https://github.com/VcDevel/Vc
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Kratos
Kratos Multiphysics (A.K.A Kratos) is a framework for building parallel multi-disciplinary simulation software. Modularity, extensibility and HPC are the main objectives. Kratos has BSD license and is written in C++ with extensive Python interface. (by KratosMultiphysics)
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Sevalla
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libfork
A bleeding-edge, lock-free, wait-free, continuation-stealing tasking library built on C++20's coroutines
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coros
An easy-to-use and fast library for task-based parallelism, utilizing coroutines. (by mtmucha)
Project mention: Show HN: Coros – A Modern C++ Library for Task Parallelism | news.ycombinator.com | 2024-09-25In your dequeue/circular buffer implementation, how is it able to grow the queue without locking?
The code seems to rely on atomics for head & tail, but grows the queue without any special provisions I can see.
https://github.com/mtmucha/coros/blob/ee30d3c1d0602c3071aa26...
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areg-sdk
Remote objects act local. C++ Async RPC for threads and processes with auto-discovery and zero-boilerplate messaging.
Long time I was not here and I am very sure that none missed me :) I was busy developing new features of areg skd and creating user interface tool for areg sdk. And I must say, that working almost alone for more these 2 project, I made a huge progress. And what is very important, I have fun.
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ConcurrentDeque
Fast, generalized, implementation of the Chase-Lev lock-free work-stealing deque for C++17
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Lazy
Light-weight header-only library for parallel function calls and continuations in C++ based on Eric Niebler's talk at CppCon 2019.
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parallel-dfs-dag
A parallel implementation of DFS for Directed Acyclic Graphs (https://research.nvidia.com/publication/parallel-depth-first-search-directed-acyclic-graphs)
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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).
C++ parallel-computing discussion
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Show HN: Coros – A Modern C++ Library for Task Parallelism
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A note from our sponsor - JetBrains
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Index
What are some of the best open-source parallel-computing projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Taskflow | 11,183 |
| 2 | CTranslate2 | 3,992 |
| 3 | kokkos | 2,299 |
| 4 | mfem | 1,956 |
| 5 | cccl | 1,885 |
| 6 | Vc | 1,491 |
| 7 | Kratos | 1,162 |
| 8 | dolfinx | 951 |
| 9 | libfork | 718 |
| 10 | oneMath | 705 |
| 11 | RAJA | 533 |
| 12 | parlaylib | 371 |
| 13 | coros | 328 |
| 14 | feelpp | 324 |
| 15 | PothosCore | 313 |
| 16 | areg-sdk | 301 |
| 17 | CPURasterizer | 192 |
| 18 | axom | 173 |
| 19 | ConcurrentDeque | 146 |
| 20 | cppRouting | 116 |
| 21 | Lazy | 112 |
| 22 | Bulk | 94 |
| 23 | parallel-dfs-dag | 50 |
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