Australia · operational · hpc

Vayu (NCI)

Also known as NCI National Facility Vayu

Operated by NCI Australia at NCI Australia (Canberra) .

Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.

Measured performance

Rmax: 126.40 TFlop/s
Rpeak: 139.89 TFlop/s
Rmax ÷ Rpeak: 90.4%
Cores: 11,936
Power: -
Per watt: - GF/W

Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.

What this machine is made of

One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.

Role	Part	Supplier at build	Quantity	Confidence	Source
Integrator	- Sun Microsystems Constellation system with Sun Blade x6048 modules	Sun Microsystems ORCLNYSE rolls up to Oracle	-	Reported	top500.org theregister.com
CPU	- Intel Xeon X5570 4C 2.93 GHz, 11,936 cores	Intel INTCNASDAQ	-	Reported	top500.org
Interconnect	Mellanox InfiniBand QDR Interconnect Fat tree · 40 Gb/s per 4x port Infiniband QDR	Mellanox NVDANASDAQ rolls up to NVIDIA	-	Reported	top500.org

The read

Sun Constellation system at the National Computational Infrastructure in Canberra, the machine that preceded Raijin. TOP500 lists it from November 2010 (51st, Sun Blade x6048 with Xeon X5570 2.93 GHz, QDR InfiniBand, 11,936 cores, 126.4 TFlop/s Rmax, 139.89 TFlop/s Rpeak) through November 2013 (445th), running CentOS. A November 2009 report of its official launch, reposted on an ANU mailing list, quotes 11,936 cores, 36 TB of memory, a 140 TFlop/s peak and a draw above 600 kW. The Register's June 2013 piece on Raijin describes Vayu as a Sun Constellation with 11,936 Xeon cores at about 140 TFlop/s. The last evidence here is the November 2013 TOP500 list, so the end of service is not stated.

Timeline

2009-11 First operational source
2010-11 List debut at #51 (November 2010) source

Public list appearances

Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.

#51: TOP500, November 2010 →

Site & facility

NCI Australia (Canberra)

Location: Canberra, Australia
Commissioned: 2019

nci.org.au

Change history

2026-10-09 Added Vayu (NCI), listed on the TOP500 in 2010-11

Source check

We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.

Every source cited on this page was readable, and none of them mentions this system. They are cited at page granularity, normally because no stable deep link could be found. That is a real weakness in this row and it is why the system carries a confidence tier below verified. See how this check works.

Cited source	Result	Found on the page
top500.org	does not name this system	Mellanox InfiniBand QDR
theregister.com	does not name this system	-

Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.