NUQSGD provably reduces variance and communication cost in data-parallel SGD using nonuniform logarithmic quantization, matching the practical speed of the QSGDinf heuristic on ImageNet.
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NUQSGD: Provably Communication-efficient Data-parallel SGD via Nonuniform Quantization
NUQSGD provably reduces variance and communication cost in data-parallel SGD using nonuniform logarithmic quantization, matching the practical speed of the QSGDinf heuristic on ImageNet.