Supercomputers/Systems/JLab 24s
USA · operational · hpc
JLab 24s
Also known as Jefferson Lab 24s LQCD cluster
Operated by Jefferson Lab at Jefferson Lab Newport News .
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
- -
- Rpeak
- -
- Rmax ÷ Rpeak
- -
- Cores
- 6,400
- 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 |
|---|---|---|---|---|---|
| CPU | Intel Xeon Platinum 8462Y+ CPUs x86-64 · 32C · 2.8 GHz · Intel 7 Dual Intel Xeon Platinum 8462Y+ Sapphire Rapids 32-core, 100 nodes | Intel | 200 reported | Reported | jlab.org |
| Interconnect | NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds MLNX ConnectX-7 NDR200 fabric 200 Gbps | NVIDIA | - | Reported | jlab.org |
The read
Lattice QCD cluster of Jefferson Lab's Scientific Computing group and Theory Center, deployed in 2024: 100 nodes of dual Intel Xeon Platinum 8462Y+ (Sapphire Rapids, 32 cores each, 6,400 cores in all) with 1 TB of memory (4800 MT/s per the lab table) and a 960 GB SSD per node on ConnectX-7 NDR200 InfiniBand (200 Gb/s). It is the CPU partner of jlab-21g and the successor in the lab's LQCD line to the KNL generation, one member of which is in the dataset as sciphi-xvi-jlab; the lab page lists the 2016-2018 KNL clusters (444 nodes) and a 32-node 2019 Skylake cluster as decommissioned. No benchmark figure is published.
Timeline
- 2024 First operational source
Site & facility
Change history
- 2026-10-18 Added JLab 24s (Jefferson Lab)