USA · operational · mixed

Nautilus

Operated by Navy DSRC at Navy DSRC (Stennis Space Center) .

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: 3.90 PFlop/s
Rpeak: 8.16 PFlop/s
Rmax ÷ Rpeak: 47.8%
Cores: 191,680
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	- Penguin Computing TrueHPC	Penguin Computing	-	Reported	penguinsolutions.com top500.org
Accelerator	- NVIDIA A100 (32 quad-GPU AI/ML nodes) plus 16 NVIDIA A40 visualization nodes	NVIDIA NVDANASDAQ	-	Reported	penguinsolutions.com top500.org
CPU	AMD EPYC 7713 (Milan) CPUs x86-64 · 64C · 2 GHz · 7 nm · 225 W AMD EPYC 7713 64C 2GHz (EPYC Milan, up to 128 cores per node)	AMD AMDNASDAQ	-	Reported	top500.org penguinsolutions.com
Interconnect	NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds Infiniband HDR200 (200 Gbps NVIDIA Mellanox InfiniBand)	NVIDIA NVDANASDAQ	-	Reported	top500.org penguinsolutions.com
Storage	- 26 PB DDN storage including 4.15 PB NVMe	DDN	-	Reported	penguinsolutions.com

The read

Penguin Computing TrueHPC system at the US Navy DoD Supercomputing Resource Center at Stennis Space Center, Mississippi, part of the DoD HPCMP. Penguin's write-up describes 1,352 compute nodes of up to 128 AMD EPYC Milan cores each, 16 NVIDIA A40 visualization nodes, 32 quad-GPU NVIDIA A100 AI/ML nodes, a 200 Gbps NVIDIA Mellanox InfiniBand fabric and 26 PB of DDN storage (4.15 PB NVMe), with 8.2 petaFLOPS peak; it came out of a DoD contract awarded in September 2021 and completed final testing in April 2023. TOP500 lists AMD EPYC 7713 64C 2GHz, InfiniBand HDR200 and NVIDIA A100 with Rmax 3.90 PFlop/s, Rpeak 8.16 PFlop/s and 191,680 cores, first appearing on the November 2023 list at rank 194; the core counts differ between TOP500 (191,680) and the operator-side press figure (176,128 compute cores). The dataset uses TOP500 numbers, so the tier is reported.

Timeline

2021-09 Announced source
2023-04 First operational source
2023-11 List debut at #194 (November 2023) source

Public list appearances

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

#194: TOP500, November 2023 →

Site & facility

Navy DSRC (Stennis Space Center)

Location: Stennis Space Center, MS, USA

penguinsolutions.com executivegov.com

Change history

2026-10-01 Added Nautilus (Navy DSRC)

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	AMD EPYC 7713 (Milan), NVIDIA InfiniBand HDR
penguinsolutions.com	names system and part	AMD EPYC 7713 (Milan), NVIDIA InfiniBand HDR

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