USA · operational · hpc

Maia (NAS)

Also known as NASA Maia Xeon Phi testbed

Operated by NASA at NASA Advanced Supercomputing Facility .

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: 212.91 TFlop/s
Rpeak: 301.38 TFlop/s
Rmax ÷ Rpeak: 70.6%
Cores: 17,408
Power: 132 kW
Per watt: 1.6 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	- SGI Rackable C1104G-RP5 nodes	SGI HPENYSE rolls up to Hewlett Packard Enterprise	-	Reported	top500.org nas.nasa.gov
Accelerator	- Intel Xeon Phi 5110P coprocessors, two per node	Intel INTCNASDAQ	-	Reported	top500.org nas.nasa.gov
CPU	Intel Xeon E5-2670 CPUs x86-64 · 8C · 2.6 GHz · 32 nm · 115 W Intel Xeon E5-2670 8C 2.6 GHz, two per node, 128 nodes	Intel INTCNASDAQ	-	Reported	top500.org nas.nasa.gov
Interconnect	Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond Infiniband FDR	Mellanox NVDANASDAQ rolls up to NVIDIA	-	Reported	top500.org

The read

NASA Advanced Supercomputing Division testbed for Intel Xeon Phi: a 128-node SGI Rackable system with two 8-core Xeon E5-2670 (Sandy Bridge) CPUs, two Xeon Phi 5110P coprocessors and 64 GB per node on FDR InfiniBand, 301.4 TFlop/s peak, named for a star in the Pleiades cluster. NAS demonstration and monthly-report pages describe it as deployed in early 2013 for evaluating Xeon Phi for the next HECC system, while the TOP500 page lists it from November 2012 (117th, 17,408 cores including coprocessor cores, 212.91 TFlop/s Rmax, 132 kW) through November 2015 (483rd) running SUSE Linux Enterprise Server 11. The two sources disagree on timing, so no first-operational date is given. TOP500 vendor is listed as SGI/HPE.

Timeline

2012-11 List debut at #117 (November 2012) source

Public list appearances

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

#117: TOP500, November 2012 →

Site & facility

NASA Advanced Supercomputing Facility

Location: Moffett Field, CA, USA
Cooling: Air and liquid hybrid
Commissioned: 1987

nas.nasa.gov

Change history

2026-10-09 Added Maia (NAS), listed on the TOP500 in 2012-11

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	Intel Xeon E5-2670, Mellanox InfiniBand FDR
nas.nasa.gov	does not name this system	Intel Xeon E5-2670

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