Training and Serving MoE Models
Mixture of Experts saves compute but not memory — and that single fact reshapes everything about how these models are trained and served. All the experts must exist in memory even though only a few run per token, which turns MoE into a distributed-systems problem as much as a machine-learning one. This post covers the trade MoE actually makes and the parallelism it forces.
Mixture of Experts saves compute but not memory — and that single fact reshapes everything about how these models are trained and served. All the experts must exist in memory even though only a few run per token, which turns MoE into a distributed-systems problem as much as a machine-learning one. The trade MoE makes and the expert parallelism it forces.