Orion (MSU HPC2)

Also known as Orion; Mississippi State Orion

Operated by Mississippi State University at Mississippi State University HPC2 .

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: 3.67 PFlop/s
Rpeak: 5.42 PFlop/s
Rmax ÷ Rpeak: 67.7%
Cores: 70,560
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	- Dell PowerEdge C6420, 1,800 compute nodes	Dell Technologies DELLNYSE	-	Reported	top500.org hpc.msstate.edu
CPU	Intel Xeon Gold 6148 CPUs x86-64 · 20C · 2.4 GHz · 14 nm · 150 W Dual 20-core Intel Xeon Gold 6148 2.4GHz per node	Intel INTCNASDAQ	1,800 reported	Reported	top500.org hpc.msstate.edu
Interconnect	- Mellanox HDR100 InfiniBand	NVIDIA NVDANASDAQ	-	Reported	top500.org hpc.msstate.edu

The read

Mississippi State University's Dell PowerEdge C6420 cluster of 1,800 nodes with dual 20-core Xeon Gold 6148 CPUs and 345 TB of memory on Mellanox HDR100 InfiniBand, run by the High Performance Computing Collaboratory (HPC2). The university quotes nearly 5.5 PFlop/s peak and a June 2019 TOP500 debut at 62nd; TOP500 lists 70,560 cores, Rmax 3.67 and Rpeak 5.42 PFlop/s, still listed in June 2026 (the MSU page counts 72,000 cores).

Timeline

2019 First operational source
2019-06 List debut at #62 (June 2019) source

Public list appearances

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

#62: TOP500, June 2019 →

Site & facility

Mississippi State University HPC2

Location: Starkville, MS, USA

hpc.msstate.edu

Change history

2026-10-02 Added Orion, Mississippi State University's Dell cluster, 62nd on the June 2019 TOP500

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
top500.org	names system and part	Intel Xeon Gold 6148
hpc.msstate.edu	names system, part and count	Intel Xeon Gold 6148 · counts: 1800

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