Supercomputers/Systems/Ollie
Germany · operational · hpc
Ollie
Also known as AWI Cray CS400
Operated by Alfred Wegener Institute at Alfred Wegener Institute Bremerhaven .
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
- 364.17 TFlop/s
- Rpeak
- 413.34 TFlop/s
- Rmax ÷ Rpeak
- 88.1%
- Cores
- 11,232
- Power
- 147 kW
- Per watt
- 2.5 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 | - Cray CS400 cluster supercomputer | Cray HPENYSE
rolls up to Hewlett Packard Enterprise | - | Verified | top500.orgmb.cision.com |
| CPU | - Intel Xeon E5-2697v4 18C 2.3GHz, 11,232 cores | Intel | - | Reported | top500.org |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond Intel Omni-Path Architecture | Cornelis Networks | - | Verified | top500.orgmb.cision.com |
The read
Alfred Wegener Institute Cray CS400 cluster nicknamed Ollie: 11,232 cores of Xeon E5-2697v4 18C 2.3GHz on Intel Omni-Path, listed by TOP500 at 362nd in June 2016 and 474th in November 2016 with 0.36 PFlop/s Rmax, 0.41 PFlop/s Rpeak and 147 kW. Cray's 16 November 2015 release announces the contract, calls it Cray's first CS cluster with Omni-Path and says AWI will run climate, global circulation and regional atmosphere models on it. Core count, Rmax and power come from TOP500 only, so the tier is reported.
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
- 2026-10-07 Added Ollie, a mid-list TOP500 system (2016-06 362)
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 |
|---|---|---|
| mb.cision.com | does not name this system | - |
| top500.org | names system and part | Omni-Path Architecture |
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.