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GShard: compiler-driven sharding for sparse-expert models

Contribution grade

Distributed model compilation and training · Human-designed research method or resource

Reference score140,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Combined lightweight sharding annotations with XLA compiler support to express distributed computation, scaling multilingual sparse-expert Transformer training with automated partitioning.

Scientific scope

Combined lightweight sharding annotations with XLA compiler support to express distributed computation, scaling multilingual sparse-expert Transformer training with automated partitioning. Inherits XLA, SPMD and sparsely gated MoE; not invention of mixture-of-experts or later GSPMD's full design.600Bparameters and2048TPUv3/4day figures are a specific multilingual-translation experiment, not dense-model-equivalent per-token compute, universal translation quality or general automatic partition optimality.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. Inherits XLA, SPMD and sparsely gated MoE; not invention of mixture-of-experts or later GSPMD's full design.600Bparameters and2048TPUv3/4day figures are a specific multilingual-translation experiment, not dense-model-equivalent per-token compute, universal translation quality or general automatic partition optimality.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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