Supercomputers/Systems/LRZ Cerebras CS-2
Germany · operational · ai training
LRZ Cerebras CS-2
Also known as LRZ Cerebras AI system
Operated by LRZ at Leibniz Supercomputing Centre, Garching .
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
- -
- Rpeak
- -
- Rmax ÷ Rpeak
- -
- Cores
- -
- 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 | - HPE Superdome Flex server paired with the CS-2 | Hewlett Packard Enterprise | - | Reported | lrz.delrz.de |
| Accelerator | Cerebras CS-2 (WSE-2) Accelerators Cerebras (wafer-scale) one Cerebras CS-2 system with the 850,000-core WSE-2 | Cerebras | 1 reported | Reported | lrz.delrz.de |
The read
A single Cerebras CS-2 with an HPE Superdome Flex host at the Leibniz Supercomputing Centre, announced in May 2022 as the first CS-2 in Europe and funded by the Bavarian Hightech Agenda. LRZ's announcement gives one system, the 850,000-core WSE-2 and water cooling; its December 2022 follow-up says the system was delivered in late summer 2022 and is open to researchers in Bavaria. Both pages are LRZ's own, so the tier is reported; HPE's press release was not retrievable. The Superdome Flex is named but its CPU and memory configuration is not published on the pages fetched.
Site & facility
Leibniz Supercomputing Centre, Garching
- Location
- Garching, Germany
- Cooling
- Direct warm-water cooling
- Commissioned
- 2006
Change history
- 2026-10-02 Added LRZ's Cerebras CS-2 system
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 |
|---|---|---|
| lrz.de | names system, part and count | Cerebras CS-2 (WSE-2) · counts: 1 |
| lrz.de | names system, part and count | Cerebras CS-2 (WSE-2) · counts: 1 |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.