Serving Mixture of Experts (MoE): Memory-Efficient Inference Routing

Serving Mixture of Experts (MoE): Memory-Efficient Inference Routing

Deep dive into the gating router mechanisms of Mixtral 8x7B and DeepSeek-V2, expert parallelism strategies, and VRAM memory offloading patterns across multi-GPU setups.

Executive Summary & Key Takeaways

Sparse Execution: MoE architectures scale model parameter count to hundreds of billions while executing only a fraction of parameters per token.

Gating Router Mechanisms: Softmax gating routers dynamically assign tokens to top-k expert networks based on semantic specialization.