activity
20212025
most citedAutoLRS: Automatic Learning-Rate Schedule by Bayesian Optimization on the Fly

5 citations · 10 across the 8 of their papers we have counts for

collaborators

8 papers

cs.DC2025

FAST: An Efficient Scheduler for All-to-All GPU Communication

Yiran Lei, Dongjoo Lee, Liangyu Zhao +9

All-to-All(v) communication is a critical primitive in modern machine learning workloads, particularly mixture-of-experts (MoE) models. Unfortunately, efficient scheduling is chall…

cs.LG2025

Tactic: Adaptive Sparse Attention with Clustering and Distribution Fitting for Long-Context LLMs

Kan Zhu, Tian Tang, Qinyu Xu +7

Long-context models are essential for many applications but face inefficiencies in loading large KV caches during decoding. Prior methods enforce fixed token budgets for sparse att…

cs.DC2024★ 1 cited

NanoFlow: Towards Optimal Large Language Model Serving Throughput

Kan Zhu, Yufei Gao, Yilong Zhao +13

Large Language Models (LLMs) have resulted in a surging demand for planet-scale serving systems, where tens of thousands of GPUs continuously serve hundreds of millions of users. C…

cs.NI2024

ForestColl: Throughput-Optimal Collective Communications on Heterogeneous Network Fabrics

Liangyu Zhao, Saeed Maleki, Yuanhong Wang +4

As modern DNN models grow ever larger, collective communications between the accelerators (allreduce, etc.) emerge as a significant performance bottleneck. Designing efficient comm…

cs.DC2023

Efficient All-to-All Collective Communication Schedules for Direct-Connect Topologies

Prithwish Basu, Liangyu Zhao, Jason Fantl +3

The all-to-all collective communications primitive is widely used in machine learning (ML) and high performance computing (HPC) workloads, and optimizing its performance is of inte…

cs.NI2023★ 2 cited

Bandwidth Optimal Pipeline Schedule for Collective Communication

Liangyu Zhao, Arvind Krishnamurthy

We present a strongly polynomial-time algorithm to generate bandwidth optimal allgather/reduce-scatter on any network topology, with or without switches. Our algorithm constructs p…

cs.NI2022★ 2 cited

Efficient Direct-Connect Topologies for Collective Communications

Liangyu Zhao, Siddharth Pal, Tapan Chugh +5

We consider the problem of distilling efficient network topologies for collective communications. We provide an algorithmic framework for constructing direct-connect topologies opt…

cs.LG2021★ 5 cited

AutoLRS: Automatic Learning-Rate Schedule by Bayesian Optimization on the Fly

Yuchen Jin, Tianyi Zhou, Liangyu Zhao +4

The learning rate (LR) schedule is one of the most important hyper-parameters needing careful tuning in training DNNs. However, it is also one of the least automated parts of machi…