Supercomputers/Systems/Iceberg
USA · operational · hpc
Iceberg
Operated by Honeywell .
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: 1263 of 1345 systems have a readable citation that names them, and 56 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
- 384.34 TFlop/s
- Rpeak
- 483.84 TFlop/s
- Rmax ÷ Rpeak
- 79.4%
- Cores
- 12,096
- Power
- 196.1 kW
- Per watt
- 2.0 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 | - SGI ICE X | SGI HPENYSE
rolls up to Hewlett Packard Enterprise | - | Reported | top500.org |
| CPU | - Intel Xeon E5-2680v3 12C 2.5GHz, 12,096 cores | Intel | - | Reported | top500.org |
| Interconnect | Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond InfiniBand FDR | NVIDIA | - | Reported | top500.org |
| Operating system | SUSE Linux Enterprise Server Operating systems Linux distribution · Open source, commercial support subscription SUSE Linux Enterprise Server 11 | SUSE | - | Reported | top500.org |
The read
Honeywell Aerospace's SGI ICE X cluster of Xeon E5-2680v3 12C 2.5GHz processors on InfiniBand FDR, running SUSE Linux Enterprise Server 11: 12,096 cores at 384.34 TFlop/s Rmax and 483.84 TFlop/s Rpeak on 196.1 kW, installed 2015. It debuted at rank 254 on the November 2015 list and last appeared at rank 454 on November 2016, which is the basis for the status date; no retirement notice was found. TOP500 does not state where it is installed.
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
- 2026-10-09 Added Iceberg
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 | Mellanox InfiniBand FDR, SUSE Linux Enterprise Server |
Checked 2026-10-13 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.