Moonshot open-sources MoonEP to cut communication overhead in distributed MoE
teortaxesTex · x · 2026-07-28
Moonshot open-sources MoonEP, a communication library for distributed MoE workloads
Kimi Moonshot says it has released MoonEP, a high-performance communication library designed for expert-parallel MoE training and inference.
- The library targets the communication bottlenecks that come with distributed experts across many GPUs.
- The post highlights problems like token dispatch, compute imbalance, and combine overhead.
- It also calls out practical issues in MoE routing such as rich-get-richer and recency bias in expert selection.
The point is to reduce communication overhead and improve throughput at scale, not to introduce a new model.
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