Supercomputers/Systems/Expanse2
USA · planned · mixed
Expanse2
Also known as NSF Expanse2
Operated by SDSC at San Diego Supercomputer Center .
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
- -
- 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 |
|---|---|---|---|---|---|
| Accelerator | - Latest-generation AMD accelerators | AMD | - | Reported | sdsc.edu |
| CPU | - Latest-generation AMD processors | AMD | - | Reported | sdsc.edu |
The read
Successor to `expanse` at the San Diego Supercomputer Center, funded by a 10 million dollar NSF award announced on 15 September 2026 and due to enter production in 2027 as a NAIRR-contributing resource for the 'long tail of science'. SDSC says it will use the latest-generation AMD processors and accelerators on a data-intensive network, with an all-NVMe file system for AI workflows plus large-capacity storage; PI is Michael Norman. No accelerator model, node count, vendor or FLOPS is stated, so only AMD is recorded as a supplier and the system will replace Expanse once it is in production.
Timeline
- 2026-09-15 Announced source
Site & facility
Change history
- 2026-10-18 Added Expanse2 (SDSC)