Supercomputers/Systems/PALMA II
Germany · operational · hpc
PALMA II
Also known as PALMA-II; WWU Muenster PALMA II
Operated by Universitaet Muenster at Muenster Einsteinstrasse Data Center .
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
- 800.33 TFlop/s
- Rpeak
- 1.28 PFlop/s
- Rmax ÷ Rpeak
- 62.7%
- Cores
- 17,352
- Power
- 214.4 kW
- Per watt
- 3.7 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 Gold 6140 18C 2.3GHz Skylake, 404 dual-processor and 8 quad-processor nodes | Intel | - | Verified | top500.orgmegware.com |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path 100 Gbit/s | Cornelis Networks | - | 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
University of Muenster's Parallel Linux System for Muenster Users, installed by MEGWARE in the Einsteinstrasse data center and operated by the university's Centre for Information Technology. MEGWARE's reference page gives 412 compute nodes (404 dual-processor and eight quad-processor, 18 cores per Intel processor), over 15,000 cores, 72.4 TB of memory, a 100 Gbit/s Intel Omni-Path network, about 1.1 PFlop/s peak, an inauguration on 23 March 2018, a cost of about 3.2 million euros and TOP500 rank 417 in June 2018. TOP500 lists the MEGWARE MiriQuid system as 17,352 cores of Xeon Gold 6140 18C 2.3GHz on Omni-Path running CentOS, Rmax 800.33 and Rpeak 1,277.11 TFlop/s at 214.4 kW. The university IT page describes the machine as one of the Top500 in 2018 with over 800 TFlop/s; the core totals differ slightly across the three sources.
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
Muenster Einsteinstrasse Data Center
- Location
- Muenster, Germany
- Commissioned
- 2018
Change history
- 2026-10-09 Added PALMA II
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 | Omni-Path Architecture, CentOS |
| megware.com | 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.