activity
20232026
most citedHexGen: Generative Inference of Large Language Model over Heterogeneous Environment

3 citations · 5 across the 14 of their papers we have counts for

collaborators

16 papers

cs.DC2026

AReaL-TIK: Stateful Agentic Optimization of Unified RL Kernels through an Optimization IR

Ran Yan, Youhe Jiang, Jiayi Nie +5

Reinforcement learning (RL) post-training often uses distinct GPU kernels for rollout and policy update. In synchronous PPO and GRPO, numerical disagreement can perturb ratios betw…

cs.DC2026

AReaL-DTE: Sparse Policy-Weight Transfer for Online Agentic Reinforcement Learning

Yingqi Peng, Jiawei Zhang, Wenhao Zhou +7

Online agentic reinforcement learning implemented with micro-services separates policy training from rollout generation, improving scalability and modularity while potentially maki…

cs.DC2026

Next-Generation Agentic Reinforcement Learning Systems Enable Self-Evolving Agents

Ran Yan, Wei Fu, Jiale Li +21

LLM agents are rapidly being deployed in production, including coding assistants, customer-support chatbots, and scientific research assistants, yet they remain fundamentally stati…

cs.DC2026

D^2SD: Accelerating Speculative Decoding with Dual Diffusion Draft Models

Liyuan Zhang, Jiarui Zhang, Jinwei Yao +6

Speculative decoding accelerates autoregressive large language model inference by drafting multiple tokens and verifying them in a single target-model forward pass. Recent diffusio…

cs.DC2026

HexiSeq: Accommodating Long Context Training of LLMs over Heterogeneous Hardware

Yan Liang, Youhe Jiang, Ran Yan +3

Long-context training of large language models (LLMs) is commonly distributed with Context Parallelism (CP) and Head Parallelism (HP), but existing training systems largely assume…

cs.DC2026

Autopoiesis: A Self-Evolving System Paradigm for LLM Serving Under Runtime Dynamics

Youhe Jiang, Ran Yan, You Peng +4

Modern Large Language Model (LLM) serving operates in highly volatile environments characterized by severe runtime dynamics, such as workload fluctuations and elastic cluster autos…

cs.LG2026

AREAL-DTA: Dynamic Tree Attention for Efficient Reinforcement Learning of Large Language Models

Jiarui Zhang, Yuchen Yang, Ran Yan +8

Reinforcement learning (RL)-based post-training for large language models (LLMs) is computationally expensive, as it generates many rollout sequences that frequently share long tok…

cs.DC2025

AReaL-Hex: Accommodating Asynchronous RL Training over Heterogeneous GPUs

Ran Yan, Youhe Jiang, Tianyuan Wu +7

Maximizing training throughput and cost-efficiency of RL for LLMs is essential to democratize this advanced technique. One promising but challenging approach is to deploy such a co…

cs.DC2025

MeCeFO: Enhancing LLM Training Robustness via Fault-Tolerant Optimization

Rizhen Hu, Yutong He, Ran Yan +3

As distributed optimization scales to meet the demands of Large Language Model (LLM) training, hardware failures become increasingly non-negligible. Existing fault-tolerant trainin…

cs.CL2025

UltraLLaDA: Scaling the Context Length to 128K for Diffusion Large Language Models

Guangxin He, Shen Nie, Fengqi Zhu +6

Diffusion LLMs have attracted growing interest, with plenty of recent work emphasizing their great potential in various downstream tasks; yet the long-context behavior of diffusion…

cs.DC2025

FSA: An Alternative Efficient Implementation of Native Sparse Attention Kernel

Ran Yan, Youhe Jiang, Zhuoming Chen +3

Recent advances in sparse attention mechanisms have demonstrated strong potential for reducing the computational cost of long-context training and inference in large language model…

cs.LG2025

Oblivionis: A Lightweight Learning and Unlearning Framework for Federated Large Language Models

Fuyao Zhang, Xinyu Yan, Tiantong Wu +7

Large Language Models (LLMs) increasingly leverage Federated Learning (FL) to utilize private, task-specific datasets for fine-tuning while preserving data privacy. However, while…

cs.DC2025

HexGen-2: Disaggregated Generative Inference of LLMs in Heterogeneous Environment

Youhe Jiang, Ran Yan, Binhang Yuan

Disaggregating the prefill and decoding phases represents an effective new paradigm for generative inference of large language models (LLM), which eliminates prefill-decoding inter…

cs.CL2024

Reducing Distraction in Long-Context Language Models by Focused Learning

Zijun Wu, Bingyuan Liu, Ran Yan +2

Recent advancements in Large Language Models (LLMs) have significantly enhanced their capacity to process long contexts. However, effectively utilizing this long context remains a…

cs.DC2024★ 2 cited

HexiScale: Facilitating Large Language Model Training over Heterogeneous Hardware

Ran Yan, Youhe Jiang, Xiaonan Nie +3

Training large language models (LLMs) is a computationally intensive task, which is typically conducted in data centers with homogeneous high-performance GPUs. In this paper, we ex…

cs.DC2023★ 3 cited

HexGen: Generative Inference of Large Language Model over Heterogeneous Environment

Youhe Jiang, Ran Yan, Xiaozhe Yao +3

Serving generative inference of the large language model is a crucial component of contemporary AI applications. This paper focuses on deploying such services in a heterogeneous an…