The Whole of PyTorch on One Page
This series maps the entire PyTorch framework, from the Python API down to the kernels and hardware. Part 0 provides a high-level overview, revealing that the Python layer is tiny compared to the 235 MB of compiled C++ underneath. It introduces the dispatcher, kernels, memory management, and the two clocks (CPU and GPU), promising a floor-by-floor exploration in subsequent parts.
The Python you write all day is the smallest layer of it.
- bonoboTP
Not bad, but Claude is not quite good yet for writing these explainers. We should try again in a few months with newer models.
- Ask12j
Lol, a yaml file for function signatures of which to generate a giant switch statement.
The "compiler" dynamo part is also a hack that calls real compilers like gcc and Triton.
It is a big bowl of spaghetti.
- 4b11b4
Can tell it's garbage just from the first figures caption