Supercomputers/Systems/HOLL-I
USA · operational · ai training
HOLL-I
Also known as Highly Optimized Logical Learning Instrument
Operated by NCSA .
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 | - nine Dell R6515 job-preparation and I/O nodes | Dell Technologies | 9 reported | Reported | ncsa.illinois.edu |
| Accelerator | Cerebras CS-2 (WSE-2) Accelerators Cerebras (wafer-scale) one Cerebras CS-2 system | Cerebras | 1 reported | Verified | cerebras.aincsa.illinois.edu |
| CPU | - 64-core AMD EPYC processors in the Dell R6515 nodes | AMD | - | Reported | ncsa.illinois.edu |
The read
NCSA's Cerebras AI system, launched on 31 May 2022 as the centre's large-model training resource: one CS-2 (850,000-core WSE-2) fed by nine Dell R6515 job-preparation and I/O nodes (64 AMD EPYC cores and 256 GB each) with 192 TB of local ZFS scratch and access to the centre-wide Taiga file system. Cerebras and NCSA independently state the single CS-2, so the tier is verified. NCSA's project page still lists it as available through the XRAS allocation system on a cost-recovery basis. NCSA's pages place it at the NCSA building rather than the petascale facility, so it is left unlocated.
Change history
- 2026-10-02 Added HOLL-I, NCSA'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 |
|---|---|---|
| cerebras.ai | names system, part and count | Cerebras CS-2 (WSE-2) · counts: 1 |
| ncsa.illinois.edu | 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.