[Submitted on 27 Oct 2026]
Title:LRMoE: Demand-Side Load Re-Calibration for Efficient MoE Training on Memory-Constrained Nodes
View a PDF of the paper titled LRMoE: Demand-Side Load Re-Calibration for Efficient MoE Training on Memory-Constrained Nodes, by Jiaming Hu and 4 other authors
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Abstract:Sparse Mixture-of-Experts (MoE) models offer scalable capacity for Web applications, but uneven routing creates computation and communication bottlenecks. Existing placement and replication methods redistribute this workload, yet additional expert copies compete with token-related buffers for limited GPU memory. We present LRMoE, a memory-aware MoE training system that jointly recalibrates backward demand and balances the retained workload. During forward execution, it plans retention quotas and expert placement under resource constraints while preserving all routed computations. During backpropagation, a load recalibration metric estimates each token-expert pair's contribution to the expert update and selects pairs within these quotas. A capacity-aware routing algorithm distributes retained pairs among eligible instances of their original experts. Physical compaction then forms smaller communication payloads and variable-size grouped GEMMs, reducing backward traffic, computation, and execution-buffer demand. Experiments on Qwen3-30B-A3B and GLM4.5-106B-A12B show that LRMoE reduces cumulative MoE-layer training time to fixed-loss targets by 21.2-44.8% relative to SYMI.
Subjects:
Artificial Intelligence (cs.AI); Distributed, Parallel, and Cluster Computing (cs.DC); Machine Learning (cs.LG)
Cite as: arXiv:2610.37720 [cs.AI]
(or arXiv:2610.37720v1 [cs.AI] for this version)
https://doi.org/10.48550/arXiv.2610.37720
arXiv-issued DOI via DataCite (pending registration)
Submission history
From: Jiaming Hu [view email] [v1] Tue, 27 Oct 2026 09:41:17 UTC (5,166 KB)
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