Shadow (Mississippi State)

Also known as Shadow

Operated by Mississippi State University at Mississippi State University HPC2 .

Researched with AI assistance, checked by scripts. These rows were researched by AI agents reading public operator, laboratory and vendor sources, appended by scripts and checked by automated validation; no subject-matter expert has reviewed them (how this site is made). A mechanical second-reader pass has since fetched every cited source: 1350 of 1540 systems have a readable citation that names them, and 64 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: 463.12 TFlop/s
Rpeak: 592.74 TFlop/s
Rmax ÷ Rpeak: 78.1%
Cores: 33,600
Power: 193.4 kW
Per watt: 2.4 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 CS300-LC	Cray HPENYSE rolls up to Hewlett Packard Enterprise	-	Reported	top500.org newsarchive.msstate.edu
Accelerator	- 260 Intel Xeon Phi coprocessors (Xeon Phi 5110P)	Intel INTCNASDAQ	260 reported	Reported	newsarchive.msstate.edu top500.org
CPU	- Intel Xeon E5-2680v2 10C 2.8GHz	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

A liquid-cooled Cray CS300-LC cluster at Mississippi State University's HPC2 facility in Starkville. The university's October 2013 announcement said 260 Intel Xeon Phi coprocessors provide most of its computing power, that it would be about ten times faster than the university's previous fastest system, and that warm-water heat exchangers replace chillers, taking water up to 104 degrees Fahrenheit directly to the processors and memory; installation was expected to finish by December 2013. TOP500 lists 33,600 cores of Xeon E5-2680v2 10C 2.8 GHz plus Xeon Phi 5110P on FDR InfiniBand, 463.12 TFlop/s Rmax, 592.74 TFlop/s Rpeak and 193.4 kW, with 2014 as the installation year. The university page gives no teraflops figure or node count. Listed from June 2015 (rank 143) to June 2017 (rank 459). The later university systems Orion and Hercules are recorded separately (msu-orion, msu-hercules). Tier is reported.

Timeline

2014 First operational source
2017-06 List debut at #459 (June 2017) source

Public list appearances

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

#459: TOP500, June 2017 →

Site & facility

Mississippi State University HPC2

Location: Starkville, MS, USA

hpc.msstate.edu

Change history

2026-10-17 Shadow (Mississippi State) added from its source pages

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
newsarchive.msstate.edu	names system only	-
top500.org	names system and part	Mellanox InfiniBand FDR

Checked 2026-10-18 by pnpm verify. Re-run it and the table changes with the web.