An RDMA QP communication mechanism of next-generation intelligent computing center.
Saved in:
| Title: | An RDMA QP communication mechanism of next-generation intelligent computing center. |
|---|---|
| Authors: | WANG, Junliang1 wangjl23@chinatelecom.cn, LIN, Baohong1 linbaoh@chinatelecom.cn, ZHANG, Jiao2 jiaozhang@bupt.edu.cn, SUN, Mengyu3 sunmy@chinatelecom.cn, PAN, Yongchen2 ychpan@bupt.edu.cn |
| Source: | Computer Engineering & Science / Jisuanji Gongcheng yu Kexue. Feb2026, Vol. 48 Issue 2, p228-237. 10p. |
| Subjects: | Network interface devices, Computer network protocols, Digital communications, Computer network reliability, Data transmission systems, Machine-to-machine communications |
| Abstract: | Currently, intelligent computing centers primarily employ RDMA (remote direct memory access) protocol to achieve ultra-high-performance communication within clusters, where each pair of processes needs to establish a queue pair (QP) based on the reliable connection (RC) type. In the context of AI large model scenarios in next-generation large-scale intelligent computing centers, distributed collective communication operations such as All-to-All and All Reduce will trigger fully connected communication between processes. The number of QPs that need to be maintained under the RC-based mechanism will exceed one million, posing significant challenges to the limited memory and performance of RDMA network interface cards (NICs). To address this issue, an RDMA QP communication mechanism named ERD (efficient reliable datagram) is proposed. On one hand, it replaces traditional RC with RD (reliable datagram) to enhance the scalability of QPs on NICs; on the other hand, it designs an RD-based reliable reception mechanism that incorporates packet loss handling and rapid ordered processing in the network stack, ensuring network reliability while improving transmission performance. Through experiments and NS3 simulation tests, ERD can reduce the number of QPs by 99.96% and enhance transmission performance by over 15% during network congestion [ABSTRACT FROM AUTHOR] |
| Copyright of Computer Engineering & Science / Jisuanji Gongcheng yu Kexue is the property of Computer Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 192370947 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: An RDMA QP communication mechanism of next-generation intelligent computing center. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22WANG%2C+Junliang%22">WANG, Junliang</searchLink><relatesTo>1</relatesTo><i> wangjl23@chinatelecom.cn</i><br /><searchLink fieldCode="AR" term="%22LIN%2C+Baohong%22">LIN, Baohong</searchLink><relatesTo>1</relatesTo><i> linbaoh@chinatelecom.cn</i><br /><searchLink fieldCode="AR" term="%22ZHANG%2C+Jiao%22">ZHANG, Jiao</searchLink><relatesTo>2</relatesTo><i> jiaozhang@bupt.edu.cn</i><br /><searchLink fieldCode="AR" term="%22SUN%2C+Mengyu%22">SUN, Mengyu</searchLink><relatesTo>3</relatesTo><i> sunmy@chinatelecom.cn</i><br /><searchLink fieldCode="AR" term="%22PAN%2C+Yongchen%22">PAN, Yongchen</searchLink><relatesTo>2</relatesTo><i> ychpan@bupt.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Computer+Engineering+%26+Science+%2F+Jisuanji+Gongcheng+yu+Kexue%22">Computer Engineering & Science / Jisuanji Gongcheng yu Kexue</searchLink>. Feb2026, Vol. 48 Issue 2, p228-237. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Network+interface+devices%22">Network interface devices</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+network+protocols%22">Computer network protocols</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+communications%22">Digital communications</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+network+reliability%22">Computer network reliability</searchLink><br /><searchLink fieldCode="DE" term="%22Data+transmission+systems%22">Data transmission systems</searchLink><br /><searchLink fieldCode="DE" term="%22Machine-to-machine+communications%22">Machine-to-machine communications</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Currently, intelligent computing centers primarily employ RDMA (remote direct memory access) protocol to achieve ultra-high-performance communication within clusters, where each pair of processes needs to establish a queue pair (QP) based on the reliable connection (RC) type. In the context of AI large model scenarios in next-generation large-scale intelligent computing centers, distributed collective communication operations such as All-to-All and All Reduce will trigger fully connected communication between processes. The number of QPs that need to be maintained under the RC-based mechanism will exceed one million, posing significant challenges to the limited memory and performance of RDMA network interface cards (NICs). To address this issue, an RDMA QP communication mechanism named ERD (efficient reliable datagram) is proposed. On one hand, it replaces traditional RC with RD (reliable datagram) to enhance the scalability of QPs on NICs; on the other hand, it designs an RD-based reliable reception mechanism that incorporates packet loss handling and rapid ordered processing in the network stack, ensuring network reliability while improving transmission performance. Through experiments and NS3 simulation tests, ERD can reduce the number of QPs by 99.96% and enhance transmission performance by over 15% during network congestion [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Computer Engineering & Science / Jisuanji Gongcheng yu Kexue is the property of Computer Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192370947 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3969/j.issn.1007-130X.2026.02.004 Languages: – Code: chi Text: Chinese PhysicalDescription: Pagination: PageCount: 10 StartPage: 228 Subjects: – SubjectFull: Network interface devices Type: general – SubjectFull: Computer network protocols Type: general – SubjectFull: Digital communications Type: general – SubjectFull: Computer network reliability Type: general – SubjectFull: Data transmission systems Type: general – SubjectFull: Machine-to-machine communications Type: general Titles: – TitleFull: An RDMA QP communication mechanism of next-generation intelligent computing center. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: WANG, Junliang – PersonEntity: Name: NameFull: LIN, Baohong – PersonEntity: Name: NameFull: ZHANG, Jiao – PersonEntity: Name: NameFull: SUN, Mengyu – PersonEntity: Name: NameFull: PAN, Yongchen IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 1007130X Numbering: – Type: volume Value: 48 – Type: issue Value: 2 Titles: – TitleFull: Computer Engineering & Science / Jisuanji Gongcheng yu Kexue Type: main |
| ResultId | 1 |
