Supercomputers/Systems/Lise
Germany · operational · hpc
Lise
Also known as HLRN-IV Lise
Operated by Zuse Institute Berlin at ZIB Berlin .
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
- 6.05 PFlop/s
- Rpeak
- 8.93 PFlop/s
- Rmax ÷ Rpeak
- 67.7%
- Cores
- 121,920
- 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 | - Atos (listed by TOP500 as Bull) | Atos | - | Verified | top500.orgberlin.de |
| CPU | - Intel Xeon Platinum 9242 48C 2.3GHz | Intel | - | Reported | top500.org |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path | Intel | - | Reported | top500.org |
| Operating system | CentOS Operating systems Linux distribution, RHEL-compatible rebuild · Open source, community-maintained CentOS | The CentOS Project | - | Reported | top500.org |
The read
The Berlin half of the northern German HLRN-IV supercomputer at the Zuse Institute Berlin, paired with Emmy in Goettingen; the HLRN-Verbund operates it and Atos supplied it. The Berlin state press release gives a EUR30 million system of about 250,000 cores and 16 PFlop/s combined across both sites, operational on 6 December 2019, with funding split between the federal research ministry and the participating states. TOP500 lists Lise as a Bull system with Intel Xeon Platinum 9242 48C 2.3GHz, Intel Omni-Path and CentOS, 121,920 cores, Rmax 6.05 PFlop/s and Rpeak 8.93 PFlop/s, and no power figure. It debuted at 40th on the November 2019 TOP500, its best rank, and was 268th in June 2026. Emmy is recorded separately.
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 Lise, the Zuse Institute Berlin half of HLRN-IV, 40th on the November 2019 TOP500
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 |
| berlin.de | does not name this system | - |
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.