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From model.generate() to the Roofline Model: The Physics of Prefill and Decode Divergence

This story is from 2026-10-21. It is preserved in the archive; the latest stories are on the live feed.

Introduction: The Dormant Tensor Cores of model.generate() When software engineers first transition from machine learning modeling to high-performance inference systems, the textbook entry point in PyTorch and Hugging Face looks deceptively straightforward: import torch from transformers import Aut…

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  1. 2026-10-21 00:54 · DEV Community — AI
    From model.generate() to the Roofline Model: The Physics of Prefill and Decode Divergence

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