activity
20212026
most citedCharacterization and Prediction of Deep Learning Workloads in Large-Scale GPU Datacenters

131 citations · 164 across the 10 of their papers we have counts for

collaborators

13 papers

cs.DC2026

Belayer: Efficient Fault Tolerance for LLM Agentic RL Training

Jiecheng Zhou, Qinghao Hu, Peng Sun +2

Large language model (LLM) agents are increasingly trained with reinforcement learning in long-horizon, sandboxed environments. Unlike conventional RL, agentic RL couples GPU-inten…

cs.AI2025

RL in the Wild: Characterizing RLVR Training in LLM Deployment

Jiecheng Zhou, Qinghao Hu, Yuyang Jin +7

Large Language Models (LLMs) are now widely used across many domains. With their rapid development, Reinforcement Learning with Verifiable Rewards (RLVR) has surged in recent month…

cs.LG2025

Semantic-Aware Scheduling for GPU Clusters with Large Language Models

Zerui Wang, Qinghao Hu, Ana Klimovic +4

Deep learning (DL) schedulers are pivotal in optimizing resource allocation in GPU clusters, but operate with a critical limitation: they are largely blind to the semantic context…

cs.DC2025

Zeppelin: Balancing Variable-length Workloads in Data Parallel Large Model Training

Chang Chen, Tiancheng Chen, Jiangfei Duan +7

Training large language models (LLMs) with increasingly long and varying sequence lengths introduces severe load imbalance challenges in large-scale data-parallel training. Recent…

cs.DC2024

Efficient Training of Large Language Models on Distributed Infrastructures: A Survey

Jiangfei Duan, Shuo Zhang, Zerui Wang +13

Large Language Models (LLMs) like GPT and LLaMA are revolutionizing the AI industry with their sophisticated capabilities. Training these models requires vast GPU clusters and sign…

cs.DC2024

TorchGT: A Holistic System for Large-scale Graph Transformer Training

Meng Zhang, Jie Sun, Qinghao Hu +4

Graph Transformer is a new architecture that surpasses GNNs in graph learning. While there emerge inspiring algorithm advancements, their practical adoption is still limited, parti…

cs.DC2024★ 1 cited

LoongTrain: Efficient Training of Long-Sequence LLMs with Head-Context Parallelism

Diandian Gu, Peng Sun, Qinghao Hu +11

Efficiently training LLMs with long sequences is important yet challenged by the massive computation and memory requirements. Sequence parallelism has been proposed to tackle these…

cs.DC2024★ 6 cited

Characterization of Large Language Model Development in the Datacenter

Qinghao Hu, Zhisheng Ye, Zerui Wang +9

Large Language Models (LLMs) have presented impressive performance across several transformative tasks. However, it is non-trivial to efficiently utilize large-scale cluster resour…

cs.DC2024

InternEvo: Efficient Long-sequence Large Language Model Training via Hybrid Parallelism and Redundant Sharding

Qiaoling Chen, Diandian Gu, Guoteng Wang +8

Large language models (LLMs) with long sequences begin to power more and more fundamentally new applications we use every day. Existing methods for long-sequence LLM training are n…

cs.DC2023

AMSP: Reducing Communication Overhead of ZeRO for Efficient LLM Training

Qiaoling Chen, Qinghao Hu, Guoteng Wang +8

Training large language models (LLMs) encounters challenges in GPU memory consumption due to the high memory requirements of model states. The widely used Zero Redundancy Optimizer…

cs.DC2023★ 4 cited

Boosting Distributed Full-graph GNN Training with Asynchronous One-bit Communication

Meng Zhang, Qinghao Hu, Peng Sun +2

Training Graph Neural Networks (GNNs) on large graphs is challenging due to the conflict between the high memory demand and limited GPU memory. Recently, distributed full-graph GNN…

cs.DC2022★ 22 cited

Deep Learning Workload Scheduling in GPU Datacenters: Taxonomy, Challenges and Vision

Wei Gao, Qinghao Hu, Zhisheng Ye +5

Deep learning (DL) shows its prosperity in a wide variety of fields. The development of a DL model is a time-consuming and resource-intensive procedure. Hence, dedicated GPU accele…

cs.DC2021★ 131 cited

Characterization and Prediction of Deep Learning Workloads in Large-Scale GPU Datacenters

Qinghao Hu, Peng Sun, Shengen Yan +2

Modern GPU datacenters are critical for delivering Deep Learning (DL) models and services in both the research community and industry. When operating a datacenter, optimization of…