Is ZeRO Optimizer the same as ZeRO?

Yes — ZeRO, ZeRO-3 are common aliases for ZeRO Optimizer.

What concepts are related to ZeRO Optimizer?

Closely related concepts include deepspeed, fsdp, gradient checkpointing.

ModelRefs / ZeRO Optimizer — AI Glossary

ZeRO Optimizer — AI Glossary

A memory-optimization strategy partitioning optimizer states, gradients, and parameters across data-parallel workers to train huge models.

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ZeRO Optimizer — AI Glossary: Terminology and implementation practice evolve. Check cited primary material and current documentation when the exact definition, protocol, or product behavior affects a consequential decision.

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