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Top 23 C++ Opencl Projects
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mace
MACE is a deep learning inference framework optimized for mobile heterogeneous computing platforms.
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FluidX3D
The fastest and most memory efficient lattice Boltzmann CFD software, running on all GPUs and CPUs via OpenCL. Free for non-commercial use.
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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.
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For my tasks, I had some success with algebraic multigrid solvers as preconditioner, for example from AMGCL or PyAMG. They are also reasonably easy to get started with.
https://github.com/pyamg/pyamg
https://github.com/ddemidov/amgcl
But I only have to deal with positive definite systems, so YMMV.
I am not sure whether those libraries can deal with multiple right-hand sides, but most complexity is in the preconditioners anyway.
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OpenCL-Wrapper
OpenCL is the most powerful programming language ever created. Yet the OpenCL C++ bindings are cumbersome and the code overhead prevents many people from getting started. I created this lightweight OpenCL-Wrapper to greatly simplify OpenCL software development with C++ while keeping functionality and performance.
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mixbench
A GPU benchmark tool for evaluating GPUs and CPUs on mixed operational intensity kernels (CUDA, OpenCL, HIP, SYCL, OpenMP)
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Project mention: AMA: GpuOwl/PRPLL, GPU software used to find the largest prime number | news.ycombinator.com | 2024-10-25
Hi, I'm Mihai Preda the author of GpuOwl/PRPLL [1], an OpenCL software that was used by Luke Durant for his recent discovery of the largest prime number know, the 52nd Mersenne prime 2^136279841 - 1 [2].
Feel free to ask questions about technical aspects of the GpuOwl implementation, about optimizations, tricks, efficient FFT implementation on GPUs etc. Or anything else.
[1] GpuOwl: https://github.com/preda/gpuowl
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Sevalla
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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).
C++ Opencl discussion
C++ Opencl related posts
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Memory-Level Parallelism: Apple M2 vs. Apple M4
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Show HN: HipScript – Run CUDA in the Browser with WebAssembly and WebGPU
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AMA: GpuOwl/PRPLL, GPU software used to find the largest prime number
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Gimps Discovers Largest Known Prime Number: 2^136279841 – 1
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New Mersenne Prime discovered (probably)
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Hosting Your Own AI Chatbot on Android Devices
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Vcc – The Vulkan Clang Compiler
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A note from our sponsor - JetBrains
surveys.jetbrains.com | 1 Sep 2025
Index
What are some of the best open-source Opencl projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | mace | 5,013 |
| 2 | ArrayFire | 4,768 |
| 3 | FluidX3D | 4,631 |
| 4 | VkFFT | 1,669 |
| 5 | Boost.Compute | 1,624 |
| 6 | compute-runtime | 1,270 |
| 7 | CLBlast | 1,134 |
| 8 | amgcl | 805 |
| 9 | VC4CL | 737 |
| 10 | VexCL | 715 |
| 11 | AutoDock-GPU | 514 |
| 12 | triSYCL | 447 |
| 13 | occa | 431 |
| 14 | xmrig-amd | 427 |
| 15 | OpenCL-Wrapper | 422 |
| 16 | mixbench | 418 |
| 17 | clvk | 405 |
| 18 | pytorch_dlprim | 365 |
| 19 | BabelStream | 347 |
| 20 | opencl-intercept-layer | 340 |
| 21 | RayTracing | 336 |
| 22 | OpenCL-Benchmark | 242 |
| 23 | gpuowl | 203 |
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