Supercomputers/Systems/Garnet
USA · operational · hpc
Garnet
Also known as ERDC DSRC Cray XE6 Garnet
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
- 1.17 PFlop/s
- Rpeak
- 1.51 PFlop/s
- Rmax ÷ Rpeak
- 77.5%
- Cores
- 150,528
- Power
- 5.57 MW
- 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 | - Cray XE6 | Cray HPENYSE
rolls up to Hewlett Packard Enterprise | - | Reported | top500.orgweb.archive.org |
| CPU | - AMD Opteron 16C 2.5GHz (Interlagos), 32 cores per node | AMD | - | Reported | top500.orgweb.archive.org |
| Interconnect | Cray Gemini Interconnect 3D torus · About 6 GB/s per direction per link · Around 1 microsecond Cray Gemini interconnect | Cray HPENYSE
rolls up to Hewlett Packard Enterprise | - | Reported | top500.orgweb.archive.org |
| Operating system | - SUSE Linux CLE (Cray Linux Environment) | SUSE | - | Reported | top500.orgweb.archive.org |
The read
Cray XE6 at the Army Engineer Research and Development Center DoD Supercomputing Resource Center (ERDC DSRC) in Vicksburg, Mississippi, part of the DoD HPCMP. TOP500 lists AMD Opteron 16C 2.5GHz processors on the Cray Gemini interconnect running Linux, 150,528 cores, Rmax 1,167.00 TFlop/s, Rpeak 1,505.28 TFlop/s and 5,569 kW; it first appeared 44th on the November 2010 list, peaked at 26th in November 2013 and was last listed 481st in November 2019. An ERDC DSRC hardware page captured by the Internet Archive in 2014 describes Garnet as a Cray XE6 rated at 1.5 PFLOPS with 4,716 compute nodes of 32 AMD Interlagos Opteron cores at 2.5 GHz on Cray Gemini running SUSE Linux CLE; a 2012 capture of the same page lists the original 194.2 TFLOPS, 1,260-node configuration, so the system was expanded in place. The 1.5 PFLOPS peak agrees across the two independent sources.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
Change history
- 2026-10-09 Added Garnet
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 | Cray Gemini |
| top500.org | names system and part | Cray Gemini |
Checked 2026-10-13 by pnpm verify. Re-run it and the table changes with the web.
Further reading
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
Inside a node
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.