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Rui-Ying Ding

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Preprint Aug 2026

TEMPO: Makespan-Aware Expert-Parallel Load Balancing Across Memory- and Compute-Bound Regimes

This work formalizes per-batch dispatch as a fixed-charge makespan problem---NP-hard on two fully replicated GPUs, polynomial in degenerate limits---and presents TEMPO, a makespan-aware dispatcher solving it in milliseconds off the critical path; its SGLang integration runs out-of-process and fuses dispatch with count...

Jie Li, Chen-Xin Jia, Jinliang Shen et al. · 0 citations
Jul 2026

JAGG: Jacobian-Aggregated Group Gradient for Efficient GRPO Training of Diffusion Models

JAGG approximates intermediate-step Jacobians via $t$-weighted interpolation of the endpoint Jacobians, then aggregates per-step upstream signals into two composite gradients applied through a single joint backward pass, and it is proved this interpolation is exact when the velocity is linear in $(z,t)$, and a cosine-s...

Rui-Ying Ding, Jie Li, He Kang et al. · 0 citations

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