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In this work, we show that the impact of model capacity varies across timesteps: it is crucial for the early and late stages but largely negligible during the intermediate stage. Accordingly, we propose FlowBlending, a stage-aware…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Jibin Song , Mingi Kwon , Jaeseok Jeong , Youngjung Uh

Existing acceleration techniques for video diffusion models often rely on uniform heuristics or time-embedding variants to skip timesteps and reuse cached features. These approaches typically require extensive calibration with curated…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Zehong Ma , Longhui Wei , Feng Wang , Shiliang Zhang , Qi Tian

Diffusion models have demonstrated remarkable success in image and video generation, yet their practical deployment remains hindered by the substantial computational overhead of multi-step iterative sampling. Among acceleration strategies,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Bowen Cui , Yuanbin Wang , Huajiang Xu , Biaolong Chen , Aixi Zhang , Hao Jiang , Zhengzheng Jin , Xu Liu , Pipei Huang

Diffusion models have gradually gained prominence in the field of image synthesis, showcasing remarkable generative capabilities. Nevertheless, the slow inference and complex networks, resulting from redundancy at both temporal and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Xuewen Liu , Zhikai Li , Qingyi Gu

Large language models (LLMs) are typically served from clusters of GPUs/NPUs that consist of large number of devices. Unfortunately, communication between these devices incurs significant overhead, increasing the inference latency and cost…

Artificial Intelligence · Computer Science 2025-05-27 Ahmet Caner Yüzügüler , Jiawei Zhuang , Lukas Cavigelli

Large language models (LLMs) excel at processing long sequences, boosting demand for key-value (KV) caching. While recent efforts to evict KV cache have alleviated the inference burden, they often fail to allocate resources rationally…

Computation and Language · Computer Science 2025-12-25 Ziran Qin , Yuchen Cao , Mingbao Lin , Wen Hu , Shixuan Fan , Ke Cheng , Weiyao Lin , Jianguo Li

For cloud service providers, fine-grained packet loss detection across data centers is crucial in improving their service level and increasing business income. However, the inability to obtain sufficient measurements makes it difficult…

Networking and Internet Architecture · Computer Science 2022-10-25 Zhenyu Ming , Wei Zhang , Yanwei Xu

Classifying network traffic according to their application-layer protocols is an important task in modern networks for traffic management and network security. Existing payload-based or statistical methods of application identification…

Networking and Internet Architecture · Computer Science 2011-05-31 Fei He , Fan Xiang , Yibo Xue , Jun Li

Diffusion models achieve remarkable generative quality, but computational overhead scales with step count, model depth, and sequence length. Feature caching is effective since adjacent timesteps yield highly similar features. However, an…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Tingyan Wen , Haoyu Li , Yihuang Chen , Xing Zhou , Lifei Zhu , Xueqian Wang

Layerwise offloading reduces the GPU memory footprint of large diffusion transformer (DiT) inference by prefetching upcoming layers from host memory, but its effectiveness hinges on hiding prefetch latency behind per-layer computation. This…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-13 Han Meng , Danny Willow Liu , Dong Li

Diffusion Transformers offer state-of-the-art fidelity in image and video synthesis, but their iterative sampling process remains a major bottleneck due to the high cost of transformer forward passes at each timestep. To mitigate this,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Shikang Zheng , Guantao Chen , Qinming Zhou , Yuqi Lin , Lixuan He , Chang Zou , Peiliang Cai , Jiacheng Liu , Linfeng Zhang

Video generation models have demonstrated remarkable performance, yet their broader adoption remains constrained by slow inference speeds and substantial computational costs, primarily due to the iterative nature of the denoising process.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-04 Xin Zhou , Dingkang Liang , Kaijin Chen , Tianrui Feng , Xiwu Chen , Hongkai Lin , Yikang Ding , Feiyang Tan , Hengshuang Zhao , Xiang Bai

By suppressing repeated content deliveries, wireless caching has the potential to substantially improve the energy efficiency (EE) of the fifth generation (5G) communication networks. In this paper, we propose two novel energy-efficient…

Signal Processing · Electrical Eng. & Systems 2018-05-31 Xuewei Zhang , Tiejun Lv , Wei Ni , John M. Cioffi , Norman C. Beaulieu , Y. Jay Guo

Large Language Models (LLMs) are increasingly being deployed on edge devices for long-context settings, creating a growing need for fast and efficient long-context inference. In these scenarios, the Key-Value (KV) cache is the primary…

Diffusion-based video editing has emerged as an important paradigm for high-quality and flexible content generation. However, despite their generality and strong modeling capacity, Diffusion Transformers (DiT) remain computationally…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Tianyi Liu , Ye Lu , Linfeng Zhang , Chen Cai , Jianjun Gao , Yi Wang , Kim-Hui Yap , Lap-Pui Chau

Diffusion-based talking head models generate high-quality, photorealistic videos but suffer from slow inference, limiting practical applications. Existing acceleration methods for general diffusion models fail to exploit the temporal and…

Graphics · Computer Science 2026-01-21 Jianzhi Long , Wenhao Sun , Rongcheng Tu , Dacheng Tao

FPGA accelerators for lightweight neural convolutional networks (LWCNNs) have recently attracted significant attention. Most existing LWCNN accelerators focus on single-Computing-Engine (CE) architecture with local optimization. However,…

Hardware Architecture · Computer Science 2024-12-17 Zhiyuan Zhao , Yihao Chen , Pengcheng Feng , Jixing Li , Gang Chen , Rongxuan Shen , Huaxiang Lu

Streaming video understanding requires models to robustly encode, store, and retrieve information from a continuous video stream to support accurate video question answering (VQA). Existing state-of-the-art approaches rely on key-value…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Vatsal Agarwal , Saksham Suri , Matthew Gwilliam , Pulkit Kumar , Abhinav Shrivastava

Transformers, driven by attention mechanisms, form the foundation of large language models (LLMs). As these models scale up, efficient GPU attention kernels become essential for high-throughput and low-latency inference. Diverse LLM…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-23 Zihao Ye , Lequn Chen , Ruihang Lai , Wuwei Lin , Yineng Zhang , Stephanie Wang , Tianqi Chen , Baris Kasikci , Vinod Grover , Arvind Krishnamurthy , Luis Ceze

Feature caching has emerged as an effective strategy to accelerate diffusion transformer (DiT) sampling through temporal feature reuse. It is a challenging problem since (1) Progressive error accumulation from cached blocks significantly…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Junxiang Qiu , Lin Liu , Shuo Wang , Jinda Lu , Kezhou Chen , Yanbin Hao