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the bug that taught me more about PyTorch than years of using it

The blog post recounts how a silent PyTorch MPS backend bug caused training loss plateaus by failing to update model weights on non-contiguous tensors, leading the author through a deep debugging journey that revealed PyTorch internals and the complexity of device-specific GPU kernel implementations. This experience taught more about PyTorch's workings than years of usage, emphasizing th...

https://elanapearl.github.io/blog/2025/the-bug-that-taught-me-pytorch