Topaz (ERDC)

Also known as ERDC DSRC Topaz; ERDC SGI ICE X

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: 3.32 PFlop/s
Rpeak: 4.57 PFlop/s
Rmax ÷ Rpeak: 72.6%
Cores: 124,200
Power: 5.17 MW
Per watt: 0.6 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 ICE X cluster	SGI HPENYSE rolls up to Hewlett Packard Enterprise	-	Reported	top500.org defenseone.com
CPU	- Intel Xeon E5-2699v3 18C 2.3GHz	Intel INTCNASDAQ	-	Reported	top500.org
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

An SGI ICE X cluster at the ERDC DoD Supercomputing Resource Center in Vicksburg, Mississippi. TOP500 lists Intel Xeon E5-2699v3 18-core 2.3 GHz processors over InfiniBand FDR, 124,200 cores, Rmax 3.32 PFlop/s, Rpeak 4.57 PFlop/s and 5,175 kW, installed 2015, first listed at rank 16 on the June 2015 list and still present at rank 344 on the June 2025 list. Defense One reported in December 2014 that the HPCMP had bought a 4.6-petaflop SGI ICE X for ERDC in October 2014, which matches the TOP500 peak, though that article does not name the machine. Named Topaz on TOP500; the name differs from the unrelated Pawsey Topaz. Tier reported: the identification of the contract with the TOP500 entry is by matching figures.

Timeline

2015 First operational source

Site & facility

ERDC DSRC (Vicksburg)

Location: Vicksburg, MS, USA
Commissioned: 1989

centers.hpc.mil

Change history

2026-10-09 Added Topaz (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
defenseone.com	does not name this system	-
top500.org	names system and part	Mellanox InfiniBand FDR

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