Switchless topologies such as 3D full-mesh are 20.6-56.2% more cost-effective than scale-up networks for MoE LLM serving, with current link bandwidths over-provisioned by up to 27%.
Overlap communication with dependent computation via decomposition in large deep learning models
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Rethinking Network Topologies for Cost-Effective Mixture-of-Experts LLM Serving
Switchless topologies such as 3D full-mesh are 20.6-56.2% more cost-effective than scale-up networks for MoE LLM serving, with current link bandwidths over-provisioned by up to 27%.