NUMAlink

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NUMAlink
NUMAlink
Year created1990 (as Stanford DASH), 1996 (as NUMAlink)
Created bySilicon Graphics
Hotplugging interfaceOptional

NUMAlink is a system interconnect developed by Silicon Graphics (SGI) for use in its distributed shared memory ccNUMA computer systems. NUMAlink was originally developed by SGI for their Origin 2000 and Onyx2 systems. At the time of these systems' introduction, it was branded as "CrayLink" during SGI's brief ownership of Cray Research.[1]

Hewlett Packard Enterprise entered an original equipment manufacturer (OEM) arrangement with Silicon Graphics International (SGI) to use Numalink as the foundation in some mission critical servers.[2]

Generation Introduction Bandwidth[i] Systems
Stanford DASH ~1990 0.12 GB/s[ii]
NUMAlink 2 1996 0.8 GB/s Origin 200, Origin 2000, Onyx2
NUMAlink 3 2000 1.6 GB/s Origin 3000, Altix 3000
NUMAlink 4 2004 3.2 GB/s Altix 4000
NUMAlink 5 2009 7.5 GB/s Altix UV
NUMAlink 6 2012 6.7 GB/s UV 2000, UV 3000, UV 30
NUMAlink 7 2014 14.9 GB/s UV 30EX, UV 300 / HPE Integrity MC990 X
NUMAlink 8 2017 13.3 GB/s (HPE) Superdome Flex, Compute Scale-up
Notes

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  1. ^ Bandwidth per port in each direction (each NUMAlink port is a dual simplex channel).
  2. ^ DASH used separate request and reply mesh networks, so this bandwidth number is not directly comparable to NUMAlink.

There was no NUMAlink 1, as SGI's engineers deemed the system interconnect used in the Stanford DASH to be the first generation NUMAlink interconnect. NUMAlink 2 (branded as CrayLink) was announced in October 1996 for the Onyx2 visualization systems, the Origin 200 and the Origin 2000 servers and supercomputers.[1] The NUMAlink 2 interface is the Hub ASIC. NUMAlink 2 is capable of 1.6 GB/s of peak bandwidth through two 800 MB/s, PECL 400 MHz 16-bit unidirectional links.[3]

NUMAlink 3 is the third generation of the interconnect, introduced in 2000 and used in the Origin 3000 and Altix 3000. NUMAlink 3 is capable of 3.2 GB/s of peak bandwidth through two 1.6 GB/s unidirectional links.[3] The name NUMAflex reflects the modular design approach around this time.[4]

NUMAlink 4 is the fourth generation of the interconnect, introduced in 2004 and used in the Altix 4000. NUMAlink 4 is capable of 6.4 GB/s of peak bandwidth through two 3.2 GB/s unidirectional links.[3]

NUMAlink 5 is the fifth generation of the interconnect, introduced in 2009 and used in the Altix UV series. NUMAlink 5 is capable of 15 GB/s of peak bandwidth through two 7.5 GB/s unidirectional links.[5]

NUMAlink 6 is the sixth generation of the interconnect, introduced in 2012 and used in the SGI UV 2000, SGI UV 3000, SGI UV 30. NUMAlink 6 is capable of 6.7 GB/s of bidirectional peak bandwidth for up to 256 socket system and 64TB of coherent shared memory.[6][7]

NUMAlink 7 is the seventh generation of the interconnect, introduced in 2014 and used in the HPE Integrity MC990 X/SGI UV 300, SGI UV 30EX, SGI UV 300H, SGI UV 300RL. NUMAlink 7 is capable of 14.94 GB/s of bidirectional peak bandwidth for up to 64 socket system and 64TB of coherent shared memory.[8][9][10]

NUMAlink 8 is the eighth generation of the interconnect, introduced in 2017 and used in the HPE Superdome Flex and Compute Scale-up. NUMAlink 8 provides 13.3 GB/s of bandwidth per port[11] and systems using it are capable of 853.33 GB/s of bisection peak bandwidth (64 links are cut) across a 32 socket system with up to 48 TB of coherent shared memory.[12][13][14]

See also

References

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  1. ^ a b Page Module:Citation/CS1/styles.css has no content."Silicon Graphics and Cray Research Unveil Modular Origin Server Family: High-Bandwidth Systems Revolutionize Computer Buying Economics With Seamless Scalability". Press release. October 7, 1996. Archived from the original on July 7, 1997. Retrieved September 21, 2013.
  2. ^ Page Module:Citation/CS1/styles.css has no content."SGI Enters OEM Agreement with Hewlett Packard Enterprise (HPE) to Deliver SGI UV Technology through HPE Mission Critical Solutions - SGI Blog". 9 February 2016. Archived from the original on 4 November 2016. Retrieved 11 August 2016.
  3. ^ a b c Page Module:Citation/CS1/styles.css has no content."SGI® NUMAlink™ Industry Leading Interconnect Technology" (PDF). White paper. April 13, 2005. Archived from the original (PDF) on March 28, 2006. Retrieved September 21, 2013.
  4. ^ Page Module:Citation/CS1/styles.css has no content.John Mashey (August 30, 2000). "NUMAflex Modular Design Approach: A Revolution in Evolution". Retrieved September 28, 2016.
  5. ^ Page Module:Citation/CS1/styles.css has no content."SGI Altix UV" (PDF). www.sgi.com. Silicon Graphics International. 2009. Retrieved 2009-11-18.
  6. ^ Page Module:Citation/CS1/styles.css has no content."SGI UV 2000 Datasheet" (PDF). www.sgi.com. Silicon Graphics International. 2015. Archived from the original (PDF) on 2017-05-17. Retrieved 2016-02-10.
  7. ^ Page Module:Citation/CS1/styles.css has no content."SGI UV 3000, UV 30 Datasheet" (PDF). www.sgi.com. Silicon Graphics International. 2015. Archived from the original (PDF) on 2017-06-11. Retrieved 2016-02-10.
  8. ^ Page Module:Citation/CS1/styles.css has no content."SGI UV 300, UV 30EX Datasheet" (PDF). www.sgi.com. Silicon Graphics International. 2015. Retrieved 2016-02-10.
  9. ^ Page Module:Citation/CS1/styles.css has no content."SGI UV 300H Datasheet" (PDF). www.sgi.com. Silicon Graphics International. 2015. Retrieved 2016-02-10.
  10. ^ Page Module:Citation/CS1/styles.css has no content."SGI UV 300RL Datasheet" (PDF). www.sgi.com. Silicon Graphics International. 2015. Retrieved 2016-02-10.
  11. ^ Page Module:Citation/CS1/styles.css has no content."Endeavour Configuration Details". NASA Advanced Supercomputing (NAS) Division. 2021-08-05. Retrieved 2023-10-28. A Superdome Flex ASIC (also known as NUMAlink 8) provides 16 flex grid ports, each capable of 13.3 GB/s data rates for maximum flex grid bandwidth. The total bi-sectional crossbar grid bandwidth for a 32-socket Superdome Flex server is more than 850 GB/s.
  12. ^ Page Module:Citation/CS1/styles.css has no content."HPE's Superdome Gets An SGI NUMAlink Makeover". www.nextplatform.com. The Next Platform. 2017. Retrieved 2017-11-14.
  13. ^ Page Module:Citation/CS1/styles.css has no content."HPE Superdome Flex Server - Product documentation". hpe.com. HPE. 2017. Retrieved 2017-11-14.
  14. ^ Page Module:Citation/CS1/styles.css has no content."HPE High Performance Computing & AI Solutions" (PDF). www.hpe.com. Hewlett Packard Enterprise. 2017. Archived from the original (PDF) on 2018-03-24. Retrieved 2018-03-24.
  • HPE NUMAlink servers, Compute Scale-up.
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