Supercomputers/Systems/UBELIX
Switzerland · operational · mixed
UBELIX
Also known as University of Bern Linux Cluster
Operated by University of Bern .
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
- 12,000
- 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 | - NVIDIA GPU nodes with RTX 3090, RTX 4090, RTX 6000, A100, H100 and H200 cards, 160 GPUs in total | NVIDIA | 160 reported | Reported | hpc-unibe-ch.github.iohpc-unibe-ch.github.io |
| CPU | - AMD EPYC 9654, 24 nodes of 192 cores | AMD | - | Reported | hpc-unibe-ch.github.io |
| CPU | AMD EPYC 7742 (Rome) CPUs x86-64 · 64C · 2.25 GHz · 7 nm · 225 W AMD EPYC 7742, 68 nodes of 128 cores | AMD | - | Reported | hpc-unibe-ch.github.io |
AI datacenter metrics
Figures beyond an accelerator count, each with who stated it. What can and cannot be compared across AI datacenters.
| Metric | Value | As of | Basis | Note | Source |
|---|---|---|---|---|---|
| Accelerators | 160 accelerators | 2026-10 | Operator stated | Operator-stated GPU total across RTX, A100, H100 and H200 nodes. | hpc-unibe-ch.github.io |
The read
UBELIX is the University of Bern's HPC cluster. The hardware overview says it currently features about 12k CPU cores and 160 GPUs, with an InfiniBand interconnect. The CPU page lists about 250 nodes (24 nodes of 2x AMD EPYC 9654 with 192 cores, 68 nodes of 2x EPYC 7742 with 128 cores, and older nodes); the GPU page lists about 20 nodes with 8 GPUs each of RTX 3090, RTX 4090, RTX 6000, H100 and H200 types and a 6x A100 node. The 12,000 core figure is the operator's rounded 'about 12k'. Operator documentation only, so the tier is reported.
Timeline
No dated events recorded.
Change history
- 2026-10-09 Added UBELIX at the University of Bern
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-unibe-ch.github.io | names system and part | AMD EPYC 7742 (Rome) |
| hpc-unibe-ch.github.io | names system only | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.