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Qinghao Hu

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OpenTela: Unifying Decentralized Computing Resources for Heterogeneous LLM Serving (Oper…20th USENIX Symposium on Operating Systems Design and Implementation (OSDI '26)2026-07-13
A user-space overlay implements CRDT-based gossip and NAT-punching/relay transport to federate Slurm, Kubernetes and bare-metal serving engines without root or…
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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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Primo: Practical Learning-Augmented Systems with Interpretable ModelsUSENIX ATC '222022-07-11
Primo presents two interpretable models PrAM and PrDT, a Distill Engine, and Bayes Optimization to auto-tune pruning and hyperparameters; it adds Monotonic…
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