Supercomputers/Systems/Alex (NHR@FAU)
Germany · operational · ai training
Alex (NHR@FAU)
Also known as Alex
Operated by FAU Erlangen-Nuremberg .
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 |
|---|---|---|---|---|---|
| Accelerator | - 20 nodes with eight A100 40 GB plus 18 nodes with eight A100 80 GB (quantity derived as 160 + 144) | NVIDIA | 304 reported | Reported | doc.nhr.fau.de |
| Accelerator | - 44 nodes with eight NVIDIA A40 48 GB each (quantity derived as 44 x 8) | NVIDIA | 352 reported | Reported | doc.nhr.fau.dexinnor.io |
| Accelerator | - 12 nodes with eight NVIDIA RTX Pro 6000 96 GB each (quantity derived as 12 x 8) | NVIDIA | 96 reported | Reported | doc.nhr.fau.de |
| CPU | AMD EPYC 7713 (Milan) CPUs x86-64 · 64C · 2 GHz · 7 nm · 225 W Dual AMD EPYC 7713 Milan 2.0 GHz per A100 and A40 node | AMD | - | Reported | doc.nhr.fau.de |
| Interconnect | NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds Two InfiniBand HDR200 links per node on the A100 nodes | NVIDIA | - | Reported | doc.nhr.fau.dexinnor.io |
The read
NHR@FAU's GPU cluster, built around 8-GPU nodes with dual AMD EPYC 7713 Milan CPUs and HDR200 InfiniBand. The NHR@FAU documentation lists 44 A40 nodes (352 NVIDIA A40), 20 A100 40 GB nodes (160 GPUs) and 18 A100 80 GB nodes (144 GPUs), plus a newer partition of 12 nodes with eight RTX Pro 6000 (96 GPUs) on dual EPYC 9745 Turin hosts; A100 and A40 nodes have NVLink/NVSwitch and 7 to 14 TB local NVMe. Xinnor's storage case study independently states 656 NVIDIA A100 and A40 GPUs, which equals the documented 352 + 160 + 144. No HPL figure or go-live date was found in the fetched sources, so those fields are blank.
Timeline
No dated events recorded.
Change history
- 2026-10-02 Added Alex (NHR@FAU)
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 |
|---|---|---|
| doc.nhr.fau.de | names system and part | AMD EPYC 7713 (Milan), NVIDIA InfiniBand HDR |
| xinnor.io | names system and part | AMD EPYC 7713 (Milan), NVIDIA InfiniBand HDR |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.