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The deployment of efficient long-context LLMs in applications like autonomous agents, long-chain reasoning, and creative writing is fundamentally bottlenecked by the linear growth of KV cache memory. Existing compression and eviction…

计算与语言 · 计算机科学 2026-02-10 Jitai Hao , Qiang Huang , Yaowei Wang , Min Zhang , Jun Yu

KV cache compression is critical for efficient long-context LLM inference. Approaches that reduce the per-pair footprint -- quantization and low-rank decomposition -- are orthogonal to those that reduce the sequence length of the cache.…

机器学习 · 计算机科学 2026-03-31 Bo Jiang , Sian Jin

KV cache stores key and value states from previous tokens to avoid re-computation, yet it demands substantial storage space, especially for long sequences. Adaptive KV cache compression seeks to discern the saliency of tokens, preserving…

机器学习 · 计算机科学 2024-05-24 Yefei He , Luoming Zhang , Weijia Wu , Jing Liu , Hong Zhou , Bohan Zhuang

The success of DNNs and their high computational requirements pushed for large codesign efforts aiming at DNN acceleration. Since DNNs can be represented as static computational graphs, static memory allocation and tiling are two crucial…

硬件体系结构 · 计算机科学 2025-04-08 Victor J. B. Jung , Alessio Burrello , Francesco Conti , Luca Benini

Multimodal large language models (MLLMs) are plagued by exorbitant inference costs attributable to the profusion of visual tokens within the vision encoder. The redundant visual tokens engenders a substantial computational load and…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Jiedong Zhuang , Lu Lu , Ming Dai , Rui Hu , Jian Chen , Qiang Liu , Haoji Hu

KV cache compression methods have mainly relied on scalar quantization techniques to reduce the memory requirements during decoding. In this work, we apply residual vector quantization, which has been widely used for high fidelity audio…

机器学习 · 计算机科学 2024-10-22 Ankur Kumar

Large language models (LLMs) often incorporate multiple text chunks in their inputs to provide the necessary contexts. To speed up the prefill of the long LLM inputs, one can pre-compute the KV cache of a text and re-use the KV cache when…

机器学习 · 计算机科学 2025-04-07 Jiayi Yao , Hanchen Li , Yuhan Liu , Siddhant Ray , Yihua Cheng , Qizheng Zhang , Kuntai Du , Shan Lu , Junchen Jiang

Recently, video language models (VLMs) have been applied in various fields. However, the visual token sequence of the VLM is too long, which may cause intolerant inference latency and GPU memory usage. Existing methods propose…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Wei Tao , Xiaoyang Qu , Peiqiang Wang , Guokuan Li , Jiguang Wan , Kai Lu , Jianzong Wang

Large Language Models (LLMs) have become the new foundation for many applications, reshaping human society like a storm. Disaggregated inference, which separates prefill and decode stages, is a promising approach to improving hardware…

分布式、并行与集群计算 · 计算机科学 2025-01-28 Shiyang Chen , Rain Jiang , Dezhi Yu , Jinlai Xu , Mengyuan Chao , Fanlong Meng , Chenyu Jiang , Wei Xu , Hang Liu

Video large language models (VideoLLMs) have demonstrated the capability to process longer video inputs and enable complex reasoning and analysis. However, due to the thousands of visual tokens from the video frames, the key-value (KV)…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Keda Tao , Haoxuan You , Yang Sui , Can Qin , Huan Wang

Key-Value (KV) cache remains a major bottleneck for deploying Large Language Models (LLMs) in long-generation tasks. Prior work often applies uniform compression across both prefill and decoding caches, but compressing the prefill cache…

人工智能 · 计算机科学 2026-05-29 Soumyadeep Jana , Sagar Nishad , Sanasam Ranbir Singh

As Large Language Models (LLMs) scale to support context windows exceeding one million tokens, the linear growth of Key-Value (KV) cache imposes severe memory capacity and bandwidth bottlenecks, constraining the efficiency of long-context…

计算与语言 · 计算机科学 2026-04-09 Zhirui Chen , Peiyang Liu , Ling Shao

KV cache restoration has emerged as a dominant bottleneck in serving long-context LLM workloads, including multi-turn conversations, retrieval-augmented generation, and agentic pipelines. Existing approaches treat restoration as a…

分布式、并行与集群计算 · 计算机科学 2026-04-29 Sean Nian , Jiahao Fang , Qilong Feng , Zhiyu Wu , Fan Lai

Prefix KV caching has become a key mechanism in LLM serving: it reduces time to first token (TTFT) by avoiding redundant computation across requests that share a prefix (i.e., the system prompt). However, the accumulated KV cache is often…

分布式、并行与集群计算 · 计算机科学 2026-05-25 Yu Zhu , Aditya Dhakal , Yunming Xiao , Dejan Milojicic , Gustavo Alonso

Large Language Models (LLMs) have been widely adopted to process long-context tasks. However, the large memory overhead of the key-value (KV) cache poses significant challenges in long-context scenarios. Existing training-free KV cache…

机器学习 · 计算机科学 2024-10-22 Luning Wang , Shiyao Li , Xuefei Ning , Zhihang Yuan , Shengen Yan , Guohao Dai , Yu Wang

Key--value (KV) caching enables fast autoregressive decoding but at long contexts becomes a dominant bottleneck in High Bandwidth Memory (HBM) capacity and bandwidth. A common mitigation is to compress cached keys and values by projecting…

Federated Learning (FL) is a distributed machine learning paradigm that enables learning models from decentralized local data. While FL offers appealing properties for clients' data privacy, it imposes high communication burdens for…

机器学习 · 计算机科学 2023-11-17 Saeed Khalilian , Vasileios Tsouvalas , Tanir Ozcelebi , Nirvana Meratnia

Large language models (LLMs) are widely deployed with rapidly expanding context windows to support increasingly demanding applications. However, long contexts pose significant deployment challenges, primarily due to the KV cache whose size…

机器学习 · 计算机科学 2026-03-10 Guangda Liu , Chengwei Li , Zhenyu Ning , Jing Lin , Yiwu Yao , Danning Ke , Minyi Guo , Jieru Zhao

Transformers have become central to natural language processing and large language models, but their deployment at scale faces three major challenges. First, the attention mechanism requires massive matrix multiplications and frequent…

硬件体系结构 · 计算机科学 2026-01-22 Xiaoxuan Yang , Peilin Chen , Tergel Molom-Ochir , Yiran Chen

How to efficiently serve LLMs in practice has become exceptionally challenging due to their prohibitive memory and computation requirements. In this study, we investigate optimizing the KV cache, whose memory footprint poses a critical…

计算与语言 · 计算机科学 2025-06-10 Akshat Sharma , Hangliang Ding , Jianping Li , Neel Dani , Minjia Zhang