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English(EN) Echo: Error-Compensated 4-Bit Tensor-Parallel Communication for LLM Training and Inference

Echo通信方法以4位精度加速LLM训练

研究人员开发了Echo,一种新颖的4位全归约(all-reduce)通信方法,旨在显著加速大型语言模型(LLM)的训练和推理。Echo通过高精度求和并将其误差反馈到后续调用中,解决了使用低精度数据固有的误差累积问题,确保累积误差保持有界。该方法提供了显著的性能提升,在A100 GPU上的测试显示,与标准的16位NCCL全归约相比,速度提升高达2.09倍,并且在网络拥塞情况下,首个token时间和训练步数方面也有显著改进。该方法在基准测试和大规模预训练中,与16位精度相比,模型准确度损失极小,保持了模型精度。 AI

影响 通过减少通信瓶颈来加速LLM的训练和推理,可能降低成本并提高可及性。

排序理由 该集群描述了一篇详细介绍LLM训练和推理新颖技术方法的最新研究论文。[lever_c_demoted from research: ic=1 ai=1.0]

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Echo通信方法以4位精度加速LLM训练

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该集群描述了一篇详细介绍LLM训练和推理新颖技术方法的最新研究论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv cs.AI TIER_1 English(EN) · Xingyu Xie, Xiaoyong Xie, Zhouchen Lin, Kim-Chuan Toh ·

    Echo:LLM训练和推理的误差补偿4位张量并行通信

    arXiv:2610.14277v1 Announce Type: new Abstract: Tensor parallelism ends every layer with an all-reduce that sits between two dependent matrix multiplications, so its cost cannot be hidden and grows as compute outpaces interconnect bandwidth. Sending 4-bit instead of 16-bit values…