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Qiaoling Chen

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Di-PS: System-Algorithm Co-Design for Asynchronous and Heterogeneous Cross-cluster...NSDI '262026-05-04
Di-PS presents a centralized leader-follower PS architecture plus algorithmic controls that reduce cross-cluster stalls and stabilize asynchronous updates. The…
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AdaCheck: An Adaptive Checkpointing System for Efficient LLM Training with Redundancy...FAST '262026-02-24
AdaCheck is an adaptive checkpointing system that minimizes checkpoint size by identifying tensor redundancy across parallelisms, model architectures, and…
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Characterization of Large Language Model Development in the Datacenter21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24)2024-04-16
Six-month datacenter trace from Acme covers >4,000 A100 GPUs and ~1M jobs (7B–123B model family, 60% GPU jobs) and shows most GPU time coming from large jobs…
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Hydro: Surrogate-Based Hyperparameter Tuning Service in DatacentersOSDI 20232023-07-10
Hydro builds a surrogate-based tuning service that trains scaled-down models via Torch FX, applies mu parameterization automatically, fuses multiple trials…
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