arXiv:2505.09343cs.DCcs.AI2025-05被引 106

DeepSeek-V3通过软硬件协同设计,突破大模型训练的算力瓶颈。

Insights into DeepSeek-V3: Scaling Challenges and Reflections on Hardware for AI Architectures

论文配图:Insights into DeepSeek-V3: Scaling Challenges and Reflections on Hardware for AI Architectures
图 1 · 摘自论文原文
  • 采用多头潜在注意力与混合专家架构,提升内存与计算效率。
  • 在2048块H800 GPU上实现高效训练,支持大规模模型推理。
  • 适合关注大模型部署与硬件优化的研究者与工程师。

大语言模型的快速扩展暴露出当前硬件架构在内存容量、计算效率和互联带宽方面的关键限制。DeepSeek-V3在2,048块NVIDIA H800 GPU上训练,展示了硬件感知的模型协同设计如何有效应对这些挑战,实现大规模下的成本效益训练与推理。本文深入分析了DeepSeek-V3/R1的模型架构与AI基础设施,提出多项创新:多头潜在注意力(MLA)提升内存效率,混合专家(MoE)架构优化计算-通信权衡,FP8混合精度训练充分释放硬件潜力,以及多平面网络拓扑降低集群级网络开销。基于DeepSeek-V3开发中遇到的硬件瓶颈,本文与学界及产业界同行探讨未来硬件方向,包括精准低精度计算单元、规模扩展与横向扩展融合、低延迟通信结构创新。这些见解强调了软硬件协同设计在应对日益增长的AI算力需求中的关键作用,为下一代AI系统创新提供实践蓝图。

原文摘要 · Abstract (English)

The rapid scaling of large language models (LLMs) has unveiled critical limitations in current hardware architectures, including constraints in memory capacity, computational efficiency, and interconnection bandwidth. DeepSeek-V3, trained on 2,048 NVIDIA H800 GPUs, demonstrates how hardware-aware model co-design can effectively address these challenges, enabling cost-efficient training and inference at scale. This paper presents an in-depth analysis of the DeepSeek-V3/R1 model architecture and its AI infrastructure, highlighting key innovations such as Multi-head Latent Attention (MLA) for enhanced memory efficiency, Mixture of Experts (MoE) architectures for optimized computation-communication trade-offs, FP8 mixed-precision training to unlock the full potential of hardware capabilities, and a Multi-Plane Network Topology to minimize cluster-level network overhead. Building on the hardware bottlenecks encountered during DeepSeek-V3's development, we engage in a broader discussion with academic and industry peers on potential future hardware directions, including precise low-precision computation units, scale-up and scale-out convergence, and innovations in low-latency communication fabrics. These insights underscore the critical role of hardware and model co-design in meeting the escalating demands of AI workloads, offering a practical blueprint for innovation in next-generation AI systems.

大模型硬件优化协同设计

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