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The rapid advancement of Large Language Models (LLMs) has driven the need for more efficient serving strategies. In this context, efficiency refers to the proportion of requests that meet their Service Level Objectives (SLOs), particularly…

Artificial Intelligence · Computer Science 2025-05-01 Azam Ikram , Xiang Li , Sameh Elnikety , Saurabh Bagchi

Agentic workflows are composed of sequences of interdependent Large Language Model (LLM) calls, and they have become a dominant workload in modern AI systems. These workflows exhibit extensive redundancy from overlapping prompts and…

Multiagent Systems · Computer Science 2026-03-18 Noppanat Wadlom , Junyi Shen , Yao Lu

Efficiently harnessing GPU compute is critical to improving user experience and reducing operational costs in large language model (LLM) services. However, current inference engine schedulers overlook the attention backend's sensitivity to…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-18 Yitao Yuan , Chenqi Zhao , Bohan Zhao , Zane Cao , Yongchao He , Wenfei Wu

Large language model (LLM) serving is becoming an increasingly critical workload for cloud providers. Existing LLM serving systems focus on interactive requests, such as chatbots and coding assistants, with tight latency SLO requirements.…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-02-26 Archit Patke , Dhemath Reddy , Saurabh Jha , Haoran Qiu , Christian Pinto , Chandra Narayanaswami , Zbigniew Kalbarczyk , Ravishankar Iyer

Large language models (LLMs) have demonstrated remarkable performance across a wide range of industrial applications, from search and recommendation systems to generative tasks. Although scaling laws indicate that larger models generally…

Large language models (LLMs) such as GPT-4 have exhibited remarkable performance in a variety of tasks, but this strong performance often comes with the high expense of using paid API services. In this paper, we are motivated to study…

Computation and Language · Computer Science 2024-02-12 Murong Yue , Jie Zhao , Min Zhang , Liang Du , Ziyu Yao

In the rapidly evolving landscape of artificial intelligence (AI), generative large language models (LLMs) stand at the forefront, revolutionizing how we interact with our data. However, the computational intensity and memory consumption of…

Machine Learning · Computer Science 2025-07-24 Xupeng Miao , Gabriele Oliaro , Zhihao Zhang , Xinhao Cheng , Hongyi Jin , Tianqi Chen , Zhihao Jia

Large Language Model (LLM) workloads have distinct prefill and decode phases with different compute and memory requirements which should ideally be accounted for when scheduling input queries across different LLM instances in a cluster.…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-01-08 Kunal Jain , Anjaly Parayil , Ankur Mallick , Esha Choukse , Xiaoting Qin , Jue Zhang , Íñigo Goiri , Rujia Wang , Chetan Bansal , Victor Rühle , Anoop Kulkarni , Steve Kofsky , Saravan Rajmohan

Recent advances in language models (LMs) have led to significant improvements in quality on complex NLP tasks, but at the expense of increased inference costs. Cascading offers a simple strategy to achieve more favorable cost-quality…

Computation and Language · Computer Science 2024-04-17 Neha Gupta , Harikrishna Narasimhan , Wittawat Jitkrittum , Ankit Singh Rawat , Aditya Krishna Menon , Sanjiv Kumar

Large language models (LLMs) deliver impressive capabilities but incur substantial inference latency and cost, which hinders their deployment in latency-sensitive and resource-constrained scenarios. Cloud-edge-device collaborative inference…

Artificial Intelligence · Computer Science 2026-03-24 Haoyu Qiao , Hao Zhang , Shanwen Mao , Siyao Cheng , Jie Liu

Caching has the potential to be of significant benefit for accessing large language models (LLMs) due to their high latencies which typically range from a small number of seconds to well over a minute. Furthermore, many LLMs charge money…

Databases · Computer Science 2025-03-25 Arun Iyengar , Ashish Kundu , Ramana Kompella , Sai Nandan Mamidi

Large Language Models (LLMs) are increasingly being deployed as intelligent agents. Their multi-stage workflows, which alternate between local computation and calls to external network services like Web APIs, introduce a mismatch in their…

Computation and Language · Computer Science 2025-12-17 Hongqiu Ni , Jiabao Zhang , Guopeng Li , Zilong Wang , Ruiqi Wu , Chi Zhang , Haisheng Tan

We study the problem of routing queries to large language models (LLMs) under cost, GPU resources, and concurrency constraints. Prior per-query routing methods often fail to control batch-level cost, especially under non-uniform or…

Machine Learning · Computer Science 2026-03-31 Jelena Markovic-Voronov , Kayhan Behdin , Yuanda Xu , Zhengze Zhou , Zhipeng Wang , Rahul Mazumder

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. Consequently, throughput has emerged as a key metric that…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-27 Kan Zhu , Yufei Gao , Yilong Zhao , Liangyu Zhao , Gefei Zuo , Yile Gu , Dedong Xie , Tian Tang , Qinyu Xu , Zihao Ye , Keisuke Kamahori , Chien-Yu Lin , Ziren Wang , Stephanie Wang , Arvind Krishnamurthy , Baris Kasikci

Cascaded LLM systems coordinate models of varying sizes with human experts to balance accuracy, cost, and abstention under uncertainty. However, single-model tiers at each stage often struggle with ambiguous queries, triggering premature…

Computation and Language · Computer Science 2026-04-15 Raeyoung Chang , Dongwook Kwon , Jisoo Lee , Nikhil Verma

Large language models (LLMs) have revolutionized the field of AI, demonstrating unprecedented capacity across various tasks. However, the inference process for LLMs comes with significant computational costs. In this paper, we propose an…

Computation and Language · Computer Science 2023-05-30 Zangwei Zheng , Xiaozhe Ren , Fuzhao Xue , Yang Luo , Xin Jiang , Yang You

Large language models (LLMs) with different architectures and sizes have been developed. Serving each LLM with dedicated GPUs leads to resource waste and service inefficiency due to the varying demand of LLM requests. A common practice is…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-23 Yihao Zhao , Jiadun Chen , Peng Sun , Lei Li , Xuanzhe Liu , Xin Jin

Serverless computing has emerged as a compelling solution for cloud-based model inference. However, as modern large language models (LLMs) continue to grow in size, existing serverless platforms often face substantial model startup…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-03-09 Minchen Yu , Rui Yang , Chaobo Jia , Zhaoyuan Su , Sheng Yao , Tingfeng Lan , Yuchen Yang , Zirui Wang , Yue Cheng , Wei Wang , Ao Wang , Ruichuan Chen

Heterogeneous device-edge-cloud computing infrastructures have become widely adopted in telecommunication operators and Wide Area Networks (WANs), offering multi-tier computational support for emerging intelligent services. With the rapid…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-27 Zhiyuan Wu , Sheng Sun , Yuwei Wang , Min Liu , Bo Gao , Jinda Lu , Zheming Yang , Tian Wen

While model serving has unlocked unprecedented capabilities, the high cost of serving large-scale models continues to be a significant barrier to widespread accessibility and rapid innovation. Compiler optimizations have long driven…

Machine Learning · Computer Science 2026-02-05 Annabelle Sujun Tang , Christopher Priebe , Rohan Mahapatra , Lianhui Qin , Hadi Esmaeilzadeh