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Computing Sharding with Einsum
einsumJanuary 25, 2026 Mental arithmetic in grade school (e.g., memorizing your times tables) is typically justified on the grounds that facility in basic calculations makes it easier to focus on higher-level problems that require being able to do these manipulations. When working on DTensor, I have also found it important to be able to quickly calculate what shardings you get when you do matrix multiplies on sharded tensors.
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