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An increasing number of LLMs employ Mixture-of-Experts (MoE) architectures where the feed-forward layer is replaced by a pool of experts and each token only activates a small subset of them. During autoregressive generation, these models…

Machine Learning · Computer Science 2025-11-05 Costin-Andrei Oncescu , Qingyang Wu , Wai Tong Chung , Robert Wu , Bryan Gopal , Junxiong Wang , Tri Dao , Ben Athiwaratkun

By increasing model parameters but activating them sparsely when performing a task, the use of Mixture-of-Experts (MoE) architecture significantly improves the performance of Large Language Models (LLMs) without increasing the inference…

Computation and Language · Computer Science 2025-06-10 Zeliang Zhang , Xiaodong Liu , Hao Cheng , Chenliang Xu , Jianfeng Gao

As large language models continue to scale up, distributed training systems have expanded beyond 10k nodes, intensifying the importance of fault tolerance. Checkpoint has emerged as the predominant fault tolerance strategy, with extensive…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-04-10 Weilin Cai , Le Qin , Jiayi Huang

Large multimodal Mixture-of-Experts (MoEs) effectively scale the model size to boost performance while maintaining fixed active parameters. However, previous works primarily utilized full-precision experts during sparse up-cycling. Despite…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Hongyu Wang , Jiayu Xu , Ruiping Wang , Yan Feng , Yitao Zhai , Peng Pei , Xunliang Cai , Xilin Chen

We introduce MixtureKit, a modular open-source framework for constructing, training, and analyzing Mixture-of-Experts (MoE) models from arbitrary pre-trained or fine-tuned models. MixtureKit currently supports three complementary methods:…

Machine Learning · Computer Science 2025-12-16 Ahmad Chamma , Omar El Herraoui , Guokan Shang

Conventional large language models (LLMs) are equipped with dozens of GB to TB of model parameters, making inference highly energy-intensive and costly as all the weights need to be loaded to onboard processing elements during computation.…

Hardware Architecture · Computer Science 2025-07-28 Wei-Hsing Huang , Janak Sharda , Cheng-Jhih Shih , Yuyao Kong , Faaiq Waqar , Pin-Jun Chen , Yingyan , Lin , Shimeng Yu

In parameter-efficient fine-tuning, mixture-of-experts (MoE), which involves specializing functionalities into different experts and sparsely activating them appropriately, has been widely adopted as a promising approach to trade-off…

Machine Learning · Computer Science 2025-08-29 Jinyuan Feng , Chaopeng Wei , Tenghai Qiu , Tianyi Hu , Zhiqiang Pu

The proliferation of large language models (LLMs) has driven the adoption of Mixture-of-Experts (MoE) architectures as a promising solution to scale model capacity while controlling computational costs. However, deploying MoE models in…

Networking and Internet Architecture · Computer Science 2025-08-14 Muqing Li , Ning Li , Xin Yuan , Wenchao Xu , Quan Chen , Song Guo , Haijun Zhang

Mixture-of-Experts (MoE) large language models (LLM) have memory requirements that often exceed the GPU memory capacity, requiring costly parameter movement from secondary memories to the GPU for expert computation. In this work, we present…

Machine Learning · Computer Science 2024-05-30 Taehyun Kim , Kwanseok Choi , Youngmock Cho , Jaehoon Cho , Hyuk-Jae Lee , Jaewoong Sim

Vision Transformers have emerged as the state-of-the-art models in various Computer Vision tasks, but their high computational and resource demands pose significant challenges. While Mixture-of-Experts (MoE) can make these models more…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Uranik Berisha , Jens Mehnert , Alexandru Paul Condurache

Mixture of experts has emerged as the primary mechanism for making Large Language Models (LLMs) computationally efficient. However, in distributed settings, communicating token embeddings between experts is a significant bottleneck. We…

Machine Learning · Computer Science 2026-05-08 Muhammad Shahir Abdurrahman , Chun Deng , Azalia Mirhoseini , Philip Levis

Multimodal large language models (MLLMs) have achieved impressive performance, but high-resolution visual inputs result in long sequences of visual tokens and substantial inference latency. Reducing redundant visual tokens is critical to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Guoyang Xia , Yifeng Ding , Fengfa Li , Lei Ren , Wei Chen , Fangxiang Feng , Xiaojie Wang

The Mixture-of-Experts (MoE) architecture has been widely adopted in large language models (LLMs) to reduce computation cost through model sparsity. Employing speculative decoding (SD) can further accelerate MoE inference by drafting…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-07 Liangkun Chen , Zijian Wen , Tian Wu , Xiaoxi Zhang , Chuan Wu

Mixture-of-Experts (MoE) is a neural network architecture that adds sparsely activated expert blocks to a base model, increasing the number of parameters without impacting computational costs. However, current distributed deep learning…

Machine Learning · Computer Science 2023-05-16 Siddharth Singh , Olatunji Ruwase , Ammar Ahmad Awan , Samyam Rajbhandari , Yuxiong He , Abhinav Bhatele

Mixture-of-Experts (MoE) has become a dominant architecture in large language models (LLMs) due to its ability to scale model capacity via sparse expert activation. Meanwhile, serverless computing, with its elasticity and pay-per-use…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-23 Wentao Liu , Yuhao Hu , Ruiting Zhou , Baochun Li , Ne Wang

The promising applications of large language models are often limited by the constrained GPU memory capacity available on edge devices. Mixture-of-Experts (MoE) models help address this issue by activating only a subset of the model's…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-09-03 Xiaoniu Song , Zihang Zhong , Rong Chen , Haibo Chen

Mixture-of-Experts (MoE) models scale efficiently by activating only a subset of experts per token, offering a computationally sparse alternative to dense architectures. While prior post-training optimizations, such as inter- and…

Machine Learning · Computer Science 2025-09-04 Krishna Teja Chitty-Venkata , Sandeep Madireddy , Murali Emani , Venkatram Vishwanath

Sparse Mixture-of-Experts (MoE) models offer a powerful way to scale model size without increasing compute, as per-token FLOPs depend only on k active experts rather than the total pool of E experts. Yet, this asymmetry creates an MoE…

Machine Learning · Computer Science 2026-05-15 Linghao Jin , Chufan Shi , Huijuan Wang , Nuan Wen , Zhengzhong Liu , Eric Xing , Xuezhe Ma

Mixture-of-experts (MoE) architectures enable trillion-parameter LLMs with sparsely activated experts. Expert parallelism (EP) is a widely adopted MoE training strategy, but it suffers from severe all-to-all communication bottlenecks, which…

Mixture-of-Experts (MoE) effectively scales large language models (LLMs) and vision-language models (VLMs) by increasing capacity through sparse activation. However, preloading all experts into memory and activating multiple experts per…

Machine Learning · Computer Science 2025-10-14 Wei Huang , Yue Liao , Yukang Chen , Jianhui Liu , Haoru Tan , Si Liu , Shiming Zhang , Shuicheng Yan , Xiaojuan Qi