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Chuck Yoo

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Preprint Sep 2026

Xronos: Heterogeneity-Aware Tensor Parallelism for Collaborative LLM Fine-Tuning on Edge CPUs

Xronos is proposed, a collaborative fine-tuning framework for heterogeneous CPU edge devices that uses TP as its execution backbone and combines lightweight profiling with heterogeneity-aware tensor partitioning to reduce the straggler bottleneck.

Wonmi Choi, Sunjae Park, Dohyeok Kwon et al. · 0 citations
Preprint Sep 2026

GeoMesh: Workload-Balanced and Sign-Compressed Geo-Distributed LLM Training

GeoMesh is presented, a synchronous geo-distributed training framework for heterogeneous GPUs that balances per-worker workloads by assigning each GPU a suitable batch size and number of inner steps, so faster GPUs do more useful work instead of waiting.

Changyong Shin, Jaerim Park, Mi-Gyung Kang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Not All AI Agents Are Equal: Characterizing Resource and Performance Dynamics

The latency with respect to the resource dynamics of processing multiple requests and tasks concurrently is characterized and new optimization opportunities that exploit the resource dynamics of tasks are demonstrated: CPU-aware tool admission and task-aware CPU allocation.

Wonmi Choi, Minuk Park, Zhixiong Niu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Parallelism Strategy Chaining for Fast Training Convergence

This paper proposes CONA, a new training method that introduces online strategy chaining, which ranks candidate strategies during training using a surrogate metric built from compute throughput and gradient statistics, and switches the current strategy to a new strategy with a higher metric.

Mi-Gyung Kang, Changyong Shin, Younghun Go et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Residual Sparsification via Output Importance for Compressing Mixture-of-Experts LLMs

PARSER is a new residual sparsification method that shifts the compression objective from minimizing isolated matrix errors to preserving the expert output error, and achieves this by introducing output importance, which measures the actual contribution to the expert output error.

Seung-Woo Jung, Dohyeok Kwon, Seung-Min Cha et al. · 0 citations

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