Pipeline vs Tensor Parallelism: The Bubble Is a Budget Line
When a model no longer fits on one accelerator, the first decision is how to cut it. Both obvious cuts solve the memory problem and both quietly introduce a different cost: one leaves devices idle at the boundaries of a batch, the other spends its savings on an all-reduce that runs inside every lay…
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- 2026-11-06 19:13 · DEV Community — AI
Pipeline vs Tensor Parallelism: The Bubble Is a Budget Line