大模型检查点技术综述

doi:10.11871/jfdc.issn.2096-742X.2026.03.017

数据与计算发展前沿 ›› 2026, Vol. 8 ›› Issue (3): 203-216.

doi: 10.11871/jfdc.issn.2096-742X.2026.03.017

大模型检查点技术综述

张超^1,²(),李杨灏^1,²,李凯¹,王子鉴¹,王彦棡^1,²,曹荣强^1,^2,^*()

¹ 中国科学院计算机网络信息中心，北京 100083
² 中国科学院大学，北京 100190

收稿日期:2025-08-20 出版日期:2026-06-20 发布日期:2026-06-18
通讯作者: 曹荣强
作者简介:张超，中国科学院计算机网络信息中心，硕士研究生，主要研究方向为大模型训练、模型并行优化、大模型检查点技术。
本文负责文献调研，整理分析，论文撰写。
ZHANG Chao is a Master’s student at the Computer Network Information Center, Chinese Academy of Sciences (CNIC). His research interests include Large-scale model training, model parallel optimization, and large-scale model checkpointing techniques.
In this paper, he is mainly responsible for literature research, data organization and analysis, and manuscript writing.
E-mail: czhang@cnic.cn|曹荣强，中国科学院计算机网络信息中心，副研究员，硕士生导师。主要从事人工智能平台系统研究与建设等方面的工作，包括异构资源调度、计算与数据融合、分布式计算等方面，支撑跨域计算资源的协同调度和高效计算，以及模型、算法、数据和服务的共享和互通，促进人工智能技术在多学科领域的创新应用。
本文负责论文框架设计、文献分析。
CAO Rongqiang is an associate researcher and Master’s supervisor at the Computer Network Information Center, Chinese Academy of Sciences. He is mainly engaged in research and construction of artificial intelligence platform systems, including heterogeneous resource scheduling, computing and data integration, distributed computing, etc. His work supports collaborative scheduling and efficient computing of cross-domain computing resources, as well as the sharing and interconnection of models, algorithms, data and services, promoting the innovative application of artificial intelligence technology in multiple disciplinary fields.
In this paper, he is responsible for the overall framework design and literature analysis.
E-mail: caorq@sccac.cn
基金资助:
科技创新2030-“新一代人工智能”重大项目(2023ZD0120500)

A survey of Checkpointing Techniques for Large-Scale Language Models

ZHANG Chao^1,²(),LI Yanghao^1,²,LI Kai¹,WANG Zijian¹,WANG Yangang^1,²,CAO Rongqiang^1,^2,^*()

¹ Computer Network Information Center, Chinese Academy of Sciences, Beijing 100083, China
² University of Chinese Academy of Sciences, Beijing 100190, China

Received:2025-08-20 Online:2026-06-20 Published:2026-06-18
Contact: CAO Rongqiang

摘要/Abstract

摘要：

【目的】本文系统综述了大规模语言模型（LLM）训练中检查点技术的应用现状与发展趋势，总结当前模型检查点技术的研究进展，并展望未来的研究方向。 【方法】通过深入研究大模型检查点的全流程，重点探讨异步检查点、压缩策略、容错机制和异构资源及框架下的兼容性等关键技术的研究进展。 【结果】当前研究已形成基于分层存储架构与增量式检查点的多模态优化路径，在检查点存储效率、恢复速度和系统稳定性方面取得显著突破。然而，现有技术在存储效率、容错机制、I/O开销以及实际分布式大规模训练的适应性方面仍存在局限，难以完全满足大模型快速发展的需求。 【结论】本文首次系统梳理了LLM训练检查点技术全流程关键环节与核心进展。未来需聚焦灵活可靠的检查点解决方案、高效存储优化、智能容错及异构兼容，以适配大规模分布式训练需求。

关键词: 大规模语言模型（LLM）, 检查点技术, 容错机制, 异构资源和框架

Abstract:

[Objective] This study systematically reviews the state of the art and development trends of checkpointing techniques for large language model (LLM) training, summarizes relevant research advances, and outlines future research directions. [Methods] Through in-depth analysis of the full LLM checkpointing lifecycle, we review research advances in core technologies: asynchronous checkpointing, compression strategies, fault-tolerance mechanisms, and cross-heterogeneous resource & framework compatibility. [Results] Current research has established a multi-modal optimization framework based on hierarchical storage architectures and incremental checkpointing, delivering remarkable breakthroughs in checkpoint storage efficiency, recovery latency, and system stability. However, existing approaches still have critical limitations in storage efficiency, fault-tolerance mechanisms, I/O overhead, and adaptability to practical large-scale distributed training, failing to fully meet the rapidly growing demands of cutting-edge LLM development. [Conclusions] To the best of our knowledge, this work is the first to systematically review the key components and core research advances across the full lifecycle of checkpointing technologies for LLM training. Future research should prioritize flexible and reliable checkpointing solutions, high-efficiency storage optimization, intelligent fault-tolerance mechanisms, and cross-resource & cross-framework heterogeneous compatibility, to meet the core demands of large-scale distributed LLM training.

Key words: Large-scale Language Models (LLM), checkpointing techniques, fault tolerance mechanisms, heterogeneous resources and frameworks

张超,李杨灏,李凯,王子鉴,王彦棡,曹荣强. 大模型检查点技术综述[J]. 数据与计算发展前沿, 2026, 8(3): 203-216.

ZHANG Chao,LI Yanghao,LI Kai,WANG Zijian,WANG Yangang,CAO Rongqiang. A survey of Checkpointing Techniques for Large-Scale Language Models[J]. Frontiers of Data and Computing, 2026, 8(3): 203-216.

图/表 7

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表2

大模型检查点核心技术多维度对比表"

技术类别	核心技术方案	存储效率	恢复速度	适用场景	优点	缺点	对应文献
检查点写入	智能压缩策略	高	中	存储受限场景、大规模模型训练	压缩率高，恢复速度提升；近乎无损恢复	有损压缩可能丢失梯度信息；高计算复杂度需额外GPU算力	[27-30]
	动态频率管理	中	中	各类模型训练、高频保存需求场景	基于训练状态自适应调整频次；CPU内存实现低延迟高频保存	数学模型假设与实际环境存在偏差；CPU内存容量限制	[22-24]
	硬件-算法协同写入	中	较高	稀疏神经网络、计算密集型训练	序列长度或网络规模数倍扩展；利用内存加速创建	依赖专用硬件；大规模节点内存协调复杂	[26,35]
	中间检查点合并	中	中	预训练阶段，混合专家模型预训练、参数高效微调	近乎零额外成本，提升模型推理泛化能力	依赖验证集选择，早期训练阶段效果有限，跨任务泛化能力弱	[36,39,40]
检查点恢复与容错	自动化故障感知恢复	高	较高	大规模分布式训练、国产化硬件环境	自动检测大部分故障；千亿级模型快速恢复	超高频故障稳定性不足；非 NVIDIA硬件支持有限	[42,44]
	极速无阻塞恢复	高	极高	弱计算节点环境、数据并行架构	无备份恢复；零训练阻塞	依赖模型层间冗余；仅支持非加密通信	[45,50]
	结构化恢复框架	高	中	Sparse MoE 模型、分布式训练	降低存储开销；分层快照保障一致性	通用模型兼容性差；分层管理复杂度高	[43,49]
I/O性能优化	传统I/O调度优化	中	中	OpenMP应用、Lustre文件系统环境	减少线程负载不均衡；稳定吞吐量	适配性有限；需人工调试延迟参数	[52-54]
	异步加载与切分	高	高	异构框架、超大模型训练	存储性能提升；零冗余加载	弱网络环境延迟增加；依赖P2P通信	[55]
	计算-I/O重叠技术	较高	较高	动态计算图框架（如PyTorch）	嵌入张量副本实现并行，降低GPU空闲时间	不支持静态计算图框架（如TensorFlow）	[57]
异构兼容	通用格式与切分方案	中	中	多并行策略、跨框架迁移	支持多种并行策略；元数据与张量分离实现解耦	依赖手动脚本转换；新型硬件兼容性待验证	[56,62]
	混合集群训练实践	中	中	多厂商GPU集群、70B以下模型	首次实现异构混合训练开源，精度损失<1%	千亿级模型稳定性不足；仅支持 PyTorch	[66]
	通信与张量优化	中	中	异构GPU集群、复杂并行场景	优化分片策略与通信方式；降低跨设备延迟	对3D并行+MoE适配有限；大规模部署成本高	[67,68]

表2

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组件	类别	中断次数	中断占比
Faulty GPU	GPU	148	30.1%
GPU HBM3 Memory	GPU	72	17.2%
Software Bug	Dependency	54	12.6%
Network Switch/Cable	Network	32	7.3%
Host Maintenance	Unplanned Maintenance	32	7.0%
GPU SRAM Memory	GPU	19	4.6%
GPU System Processor	GPU	17	4.0%
NIC	Host	7	1.7%
NCCL Watchdog Timeouts	Unknown	7	1.7%
Silent Data Corruption	GPU	7	1.4%
GPU Thermal Interface+Sensor	GPU	6	1.3%
SSD	Host	3	0.7%
Power Supply	Host	3	0.7%
Server Chassis	Host	3	0.7%
IO Expansion Board	Host	2	0.5%
Dependency	Dependency	2	0.5%
CPU	Host	2	0.5%
System Memory	Host	2	0.5%

大模型检查点技术综述

A survey of Checkpointing Techniques for Large-Scale Language Models

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