Supercomputers/Systems/Rattler
USA · operational · hpc
Rattler
Also known as Dell Rattler
Operated by Dell Technologies .
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
- 2.53 PFlop/s
- Rpeak
- 3.94 PFlop/s
- Rmax ÷ Rpeak
- 64.2%
- Cores
- 26,880
- 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 | - Dell PowerEdge XE8545 servers | Dell Technologies | - | Reported | top500.org |
| Accelerator | - NVIDIA A100 80GB | NVIDIA | - | Reported | top500.org |
| CPU | - AMD EPYC 7713 64C 2GHz | AMD | - | Reported | top500.org |
| Interconnect | NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds Infiniband HDR200 dual rail | NVIDIA | - | Reported | top500.org |
| Operating system | Red Hat Enterprise Linux Operating systems Linux distribution · Open source, commercial support subscription RHEL | Red Hat | - | Reported | top500.org |
The read
Dell Technologies' own GPU cluster at its HPC & AI Innovation Lab, used as a showcase and benchmarking system. TOP500 lists PowerEdge XE8545 servers with AMD EPYC 7713 64C 2GHz hosts, NVIDIA A100 80GB GPUs and dual-rail InfiniBand HDR200 under RHEL, installed 2021, with 26,880 cores, Rmax 2.53 PFlop/s, Rpeak 3.94 PFlop/s and 43.25 TFlop/s on HPCG. It debuted at rank 233 in November 2021 (its best position) and slid to rank 483 by June 2025, its last list. TOP500 is the only source fetched, so the tier is reported; no power figure, site city or in-service date is published there.
Timeline
- 2021-11 List debut at #233 (November 2021) source
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 Rattler (dell)
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 | NVIDIA InfiniBand HDR |
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.