Article(id=1146098720719864042, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1146500022012580582, articleNumber=null, orderNo=17, doi=10.3981/j.issn.1000-7857.2024.08.01032, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1724169600000, receivedDateStr=2024-08-21, revisedDate=1743436800000, revisedDateStr=2025-04-01, acceptedDate=1744732800000, acceptedDateStr=2025-04-16, onlineDate=1751180828504, onlineDateStr=2025-06-29, pubDate=1747065600000, pubDateStr=2025-05-13, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1749744000000, onlineIssueDateStr=2025-06-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=1751180828504, onlineFirstDateStr=2025-06-29, sourceXml=null, magXml=null, createTime=1751180828504, creator=18627231156, updateTime=1774079661667, updator=sys-migrate, issue=Issue{id=1146500022012580582, tenantId=1146029695717560320, journalId=1146031591421210625, year='2025', volume='43', issue='9', pageStart='1', pageEnd='100', issueExtLink='null', onlineDate='null', pubDate='1747065600000', pubDateStr='2025-05-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1751276506188, creator='13701087609', updateTime=1774330384082, updator='13041195026', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1243194994346013325, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1146500022012580582, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1243194994350207630, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1146500022012580582, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=31, endPage=37, ext={EN=ArticleExt(id=1146098722611495171, articleId=1146098720719864042, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=On developing wide–area long–distance high–performance transport techniques in computer networks, columnId=1150494642224591153, journalTitle=Science & Technology Review, columnName=Exclusive, runingTitle=null, highlight=null, articleAbstract=
The technology for high–performance long–distance transmission has significant strategic value in the context of China's "East Data, West Calculation" project, which aims to construct a nationwide integrated computing network. Three trends are driving new requirements for the paradigm of wide–area distributed computing power coordination: 1) the rise of AI large–scale model intelligent applications that demand extremely high computing resources, 2) the embargo on high–performance GPU chips limiting single–center computing power resources, and 3) the formation of a dispersed computing power distribution pattern due to the establishment of computing clusters across various regions in China. High–performance long–distance transmission technology is crucial for this new paradigm. This paper discusses five aspects: supporting the new paradigm of wide–area distributed computing resource coordination, technical routes, underlay networks, challenges, and costs. Based on the results of a real–network experiment spanning 2100 kilometers from Shenzhen to Zhongwei in Ningxia, the authors believe that optimizing existing RDMA technology for long–distance transmission over wide–area optical networks is one of the most feasible and cost–effective solutions in the short term. By optimizing RoCE (RDMA over Converged Ethernet) over wide–area optical networks, it is possible to achieve "optical direct access to data in WAN" approaching physical layer communication performance indicators.
, authors=null, authorsList=Teng LIANG, Jian YANG, Jiayu YANG, Yu ZHANG, Weizhe ZHANG, authorCompany=null, correspAuthors=Weizhe ZHANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=
All rights reserved. Unauthorized reproduction is prohibited., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1146098729221718418, articleId=1146098720719864042, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=广域长距离高性能传输技术研究与讨论, columnId=1150494642375586098, journalTitle=科技导报, columnName=特色专题, runingTitle=null, highlight=null, articleAbstract=
广域长距离高性能传输技术在中国“东数西算”工程构建全国一体化算力网背景下具备重要的战略价值。3个趋势对广域分布式算力协同范式提出新需求:对算力资源要求极高的人工智能(AI)大模型智能应用的兴起;高端高性能图形处理单元(GPU)芯片被禁运限制单中心算力资源;中国各地建设的算力集群形成算力分散分布态势。广域长距离高性能传输技术是上述新范式的关键技术。从支撑广域分布式算力协同新范式、技术路线、承载网络、研究难点、成本5个方面进行讨论,结合深圳到宁夏中卫2100 km实网实验结果,将现有远程直接内存访问(remote direct memory access,RDMA)技术基于广域全光网进行长距离优化的方案是短期内可行性高、成本低且利于开展研究的最佳方案之一,通过优化基于融合以太网的远程直接内存访问(RDMA over Converged Ethernet,RoCE)可以在广域全光网上实现“广域光数直达”逼近物理层通信性能指标。
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版权所有,未经授权,不得转载。, copyrightOwner=《科技导报》编辑部, extLink=null, articleAbsUrl=null, sourceXml=C3wZy9LMTgpx7Wl0Cdaz0g==, magXml=C3wZy9LMTgpx7Wl0Cdaz0g==, pdfUrl=null, pdf=TBkDxVcecwNOMAaisGxWzQ==, pdfFileSize=1006160, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=OhLWt6HGsevM9B4ClgP1/Q==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=KiW79nlvftwN5A5dXpWAKA==, mapNumber=null, fund=null)}, authors=[Author(id=1242143399097217238, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1146098720719864042, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=liangt@pcl.ac.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1242143399181103322, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1146098720719864042, authorId=1242143399097217238, language=EN, stringName=Teng LIANG, firstName=Teng, middleName=null, lastName=LIANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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梁腾,特聘副研究员,研究方向为新型网络架构,电子信箱: liangt@pcl.ac.cn
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