Supercomputers/Systems/Hummel
Germany · decommissioned · hpc
Hummel
Also known as Hummel (HPC-Cluster 2015-2024)
Operated by Universitaet Hamburg at Universitaet Hamburg RRZ .
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
- 195.62 TFlop/s
- Rpeak
- 242.07 TFlop/s
- Rmax ÷ Rpeak
- 80.8%
- Cores
- 6,304
- Power
- 120 kW
- Per watt
- 1.6 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 | - MEGWARE MiriQuid cluster | MEGWARE | - | Verified | top500.orgmegware.com |
| CPU | - Intel Xeon E5-2630 v3 8C 2.4GHz Haswell, dual-socket nodes | Intel | - | Verified | top500.orgmegware.com |
| Interconnect | Mellanox InfiniBand QDR Interconnect Fat tree · 40 Gb/s per 4x port Mellanox InfiniBand QDR 40 Gbit/s | NVIDIA | - | Verified | top500.orgmegware.com |
| Operating system | CentOS Operating systems Linux distribution, RHEL-compatible rebuild · Open source, community-maintained CentOS | The CentOS Project | - | Reported | top500.org |
The read
MEGWARE MiriQuid cluster at the University of Hamburg's Regional Computing Centre (RRZ). MEGWARE announced on 4 March 2015 that it had won the contract for dual-socket Haswell Xeon 8-core nodes with about 250 TFlop/s theoretical CPU peak, 40 Gbit/s QDR InfiniBand from Mellanox and two high-performance disk systems, with completion planned for mid-May 2015. TOP500 lists 6,304 cores of Xeon E5-2630v3 8C 2.4GHz on InfiniBand QDR, Rmax 195.6 and Rpeak 242.1 TFlop/s at 120 kW, ranked 387th in June 2015. The RRZ later filed the cluster in its museum section as 'Hummel (HPC-Cluster 2015-2024)', and the successor system is Hummel-2.
Timeline
- 2015 First operational source
- 2015-03-04 Announced source
- 2015-06 List debut at #387 (June 2015) source
- 2024 Decommissioned source
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
Change history
- 2026-10-09 Added Hummel
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 QDR, CentOS |
| megware.com | does not name this system | Mellanox InfiniBand QDR |
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.