USA · operational · hpc

SciPhi-XVI

Also known as Jefferson Lab 16p

Operated by Jefferson Lab at Jefferson Lab Newport News .

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: 425.87 TFlop/s
Rpeak: 702.87 TFlop/s
Rmax ÷ Rpeak: 60.6%
Cores: 16,896
Power: 111 kW
Per watt: 3.8 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	- KOI Computers cluster of 264 Xeon Phi nodes	Koi Computers	-	Reported	top500.org jlab.org
CPU	- Intel Xeon Phi 7230 64C 1.3GHz Knights Landing, one per node, 264 nodes	Intel INTCNASDAQ	264 reported	Verified	jlab.org top500.org
Interconnect	Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path Architecture, 100 Gb/s	Cornelis Networks	-	Verified	jlab.org top500.org

The read

SciPhi-XVI is Jefferson Lab's lattice QCD cluster of 264 Intel Xeon Phi (Knights Landing) nodes with 64 cores each (16,896 cores) on Intel Omni-Path, built by KOI Computers. Jefferson Lab says it was installed in mid-August 2016, deployed on 30 September with 200 nodes, grew by 64 nodes in late October and benchmarked 425.8 TFlop/s on 256 nodes. The lab's release says 397th on the November 2016 list while the TOP500 list page shows 398th, which is the value used here. TOP500 gives 0.70 PFlop/s Rpeak and 111 kW. It appeared only on that one list.

Timeline

2016-09 First operational source
2016-11 List debut at #398 (November 2016) source

Public list appearances

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

#398: TOP500, November 2016 →

Site & facility

Jefferson Lab Newport News

Location: Newport News, VA, USA

jlab.org

Change history

2026-10-07 Added SciPhi-XVI, a mid-list TOP500 system (2016-11 398)

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	Omni-Path Architecture
jlab.org	names system and part	Omni-Path Architecture

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