Diamond (ERDC)

Also known as ERDC DSRC SGI Altix ICE Diamond

Operated by ERDC DSRC at ERDC DSRC (Vicksburg) .

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: 1263 of 1345 systems have a readable citation that names them, and 56 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: 160.20 TFlop/s
Rpeak: 172.03 TFlop/s
Rmax ÷ Rpeak: 93.1%
Cores: 15,360
Power: 774 kW
Per watt: 0.2 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 Altix ICE 8200 Enhanced LX	SGI HPENYSE rolls up to Hewlett Packard Enterprise	-	Reported	top500.org web.archive.org
CPU	- Intel Xeon X5560 4C 2.8GHz (Nehalem-EP), 1,920 compute nodes	Intel INTCNASDAQ	-	Reported	top500.org web.archive.org
Interconnect	Mellanox InfiniBand DDR Interconnect Fat tree · 20 Gb/s per 4x port · About 2 microseconds 4x DDR InfiniBand	NVIDIA NVDANASDAQ	-	Reported	top500.org web.archive.org
Operating system	- SUSE Linux Enterprise Server with SGI ProPack	SUSE	-	Reported	top500.org web.archive.org

The read

SGI Altix ICE 8200 Enhanced LX cluster at the Army Engineer Research and Development Center DoD Supercomputing Resource Center in Vicksburg, Mississippi. TOP500 lists Xeon X5560 4C 2.8GHz processors on InfiniBand DDR running SLES 10 with SGI ProPack, 15,360 cores, Rmax 160.20 TFlop/s, Rpeak 172.03 TFlop/s and 774 kW; it first appeared 24th on the November 2009 list and was last listed 460th in November 2014. An ERDC DSRC hardware page captured by the Internet Archive in 2012 describes Diamond as an SGI Altix ICE rated at 172 TFLOPS with 1,920 compute nodes of 8 Nehalem-EP cores at 2.8 GHz (15,360 cores) on 4x DDR InfiniBand and SLES 11; core count and peak agree across the two independent sources. TOP500 now credits HPE as manufacturer after the SGI acquisition.

Timeline

2009 First operational source
2009-11 List debut at #24 (November 2009) source

Public list appearances

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

#24: TOP500, November 2009 →

Site & facility

ERDC DSRC (Vicksburg)

Location: Vicksburg, MS, USA
Commissioned: 1989

centers.hpc.mil

Change history

2026-10-09 Added Diamond (ERDC)

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.

Cited source	Result	Found on the page
web.archive.org	names system and part	Mellanox InfiniBand DDR
top500.org	names system and part	Mellanox InfiniBand DDR

Checked 2026-10-13 by pnpm verify. Re-run it and the table changes with the web.