The Zero Redundancy Optimizer (ZeRO): A Short Introduction with Python
Last Updated on August 16, 2023 by Editorial Team
Author(s): Armin Norouzi, Ph.D
Originally published on Towards AI.
Uncover how Zero Redundancy Optimizer transforms data parallelism, boosting memory and computational efficacy.
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source: https://www.microsoft.com/en-us/research/blog/zero-deepspeed-new-system-optimizations-enable-training-models-with-over-100-billion-parameters/
The Zero Redundancy Optimizer (ZeRO) improves data parallelism by decreasing memory redundancies. ZeRO divides model states across processes across three stages: optimizer states, gradients, and parameters. This partitioning enhances speed by allowing larger models to be trained on smaller computers using a single GPU. The DeepSpeed and HuggingFace libraries can be used to implement this.
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Armin Norouzi, Ph.D
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