BarraCUDA: Open-Source CUDA Compiler Supports AMD, NVIDIA, and Tenstorrent GPUs
By
rurban
Pulled from the oven just right. Trustworthy, fact-dense, deeply satisfying.
Summary
BarraCUDA is an open-source CUDA C++ compiler written from scratch in C99 that can compile .cu files to multiple GPU architectures including AMD RDNA 2/3/4 binaries, NVIDIA PTX, and Tenstorrent Tensix C++. The project was created as a response to NVIDIA's walled garden approach, aiming to provide a dependency-free compiler without using LLVM. The developer describes the challenge as significant but completed the project anyway, with plans to support more architectures in the future.
Key quotes
· 4 pulledAn open-source CUDA C++ compiler written from scratch in C99 that takes .cu files and compiles them to AMD GPU machine code, NVIDIA PTX, and Tenstorrent Tensix C++, with more architectures planned.
No LLVM, no dependencies, and no permission asked.
This is what happens when you look at NVIDIA's walled garden and think 'how hard can it be?' The answer is: quite hard, actually, but I did it anyway.
Takes CUDA C source code, the same .cu files you'd feed to nvcc, and compiles them to AMD RDNA 2/3/4 binaries, NVIDIA PTX, or Tenstorrent Tensix Metaliu
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