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Writing an LLM compiler from scratch: PyTorch to CUDA in 5,000 lines of Python

Via r/LocalLlama
Wednesday, Apr 29, 2026 · 7:56PM
Summary

Hey r/LocalLLaMA, I wanted to come up with a simple overview of the modern ML compiler stack, essentially what happens between model.generate()and the GPU executing a kernel. However, the stack is brutal to read. TVM is 500K+ lines of C++. PyTorch piles Dynamo, Inductor, and Triton on top of each ot

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