Supercomputers/Systems/Mogon II
Germany · operational · hpc
Mogon II
Operated by Johannes Gutenberg University Mainz at JGU Mainz HPC Site .
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
- 1.97 PFlop/s
- Rpeak
- 2.80 PFlop/s
- Rmax ÷ Rpeak
- 70.4%
- Cores
- 49,432
- Power
- 657 kW
- Per watt
- 3.0 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 | - MEGWARE MiriQuid cluster (NEC/MEGWARE per TOP500) | MEGWARE | - | Reported | megware.comtop500.org |
| CPU | - Intel Xeon E5-2630v4 10C 2.2GHz Broadwell nodes (822 nodes, two CPUs each) | Intel | 822 reported | Reported | hpc-en.uni-mainz.de |
| CPU | - Intel Xeon Gold 6130 16C 2.1GHz Skylake nodes (1,136 nodes, two CPUs each) | Intel | 1,136 reported | Reported | hpc-en.uni-mainz.detop500.org |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path 50 Gbit/s fat tree | Intel | - | Reported | hpc-en.uni-mainz.detop500.org |
The read
Johannes Gutenberg University Mainz's HPC cluster, acquired in 2016 and 2017 and operated by the university's data centre together with the Helmholtz Institute Mainz. The university lists 822 Broadwell nodes (Xeon E5-2630v4) and 1,136 Skylake nodes (Xeon Gold 6130) on a 50 Gbit/s Omni-Path fat tree; MEGWARE supplied the first phase of 820 nodes. TOP500 gives 49,432 cores and 1.97 PFlop/s Rmax, listed from June 2017 to June 2023 and 216th in June 2020.
Timeline
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
- 2026-10-02 Added Mogon II, Mainz University's HPC 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-en.uni-mainz.de | names system only | - |
| 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.