Supercomputers/Systems/Manzano
USA · operational · hpc
Manzano
Also known as SNL/NNSA CTS-1 Manzano
Operated by Sandia National Laboratories .
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
- 4.28 PFlop/s
- Rpeak
- 6.63 PFlop/s
- Rmax ÷ Rpeak
- 64.6%
- Cores
- 71,424
- Power
- 960 kW
- Per watt
- 4.5 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 Tundra Extreme Scale | Penguin Computing | - | Reported | top500.orghpc.sandia.gov |
| CPU | - Intel Xeon Platinum 8268 24C 2.9GHz, 1,488 dual-socket nodes | Intel | - | Reported | top500.orghpc.sandia.gov |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path | Cornelis Networks | - | Reported | top500.orghpc.sandia.gov |
| Operating system | Tri-Lab Operating System Stack Operating systems Linux distribution, RHEL-derived, HPC-tuned · Open source, LLNL-maintained Tri-Lab Operating System Stack (TOSS 4 on RHEL 8) | Lawrence Livermore National Laboratory | - | Reported | hpc.sandia.govtop500.org |
The read
Penguin Computing Tundra Extreme Scale cluster listed under the ASC ND programme clusters on Sandia's HPC page. Sandia's HPC page lists 1,488 nodes and 71,424 cores of 2.9 GHz Intel Cascade Lake Platinum (two 24-core sockets per node), Omni-Path, TOSS 4 on RHEL 8, 4.281 PFlop/s and a 9 November 2020 availability date. TOP500 lists Xeon Platinum 8268 24C 2.9GHz, Rmax 4.28 PFlop/s, Rpeak 6.63 PFlop/s and 960 kW; it debuted at rank 69 on the November 2020 list and was ranked 329 in June 2026. Sandia's 4.281 PFlop/s figure matches the TOP500 Rmax rather than its 6.63 Rpeak, so the TOP500 figures are recorded.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Change history
- 2026-10-07 Added Manzano, Sandia's Tundra cluster
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 |
|---|---|---|
| hpc.sandia.gov | names system and part | Omni-Path Architecture |
| top500.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.
Further reading
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
Inside a node
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.