Supercomputers/Systems/Owens
USA · decommissioned · hpc
Owens
Also known as OSC Owens
Operated by Ohio Supercomputer Center .
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
- 705.97 TFlop/s
- Rpeak
- 859.09 TFlop/s
- Rmax ÷ Rpeak
- 82.2%
- Cores
- 22,372
- Power
- 324 kW
- Per watt
- 2.2 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 | - Dell PowerEdge C6320/R730, 824 nodes | Dell Technologies | - | Reported | top500.orgosc.edu |
| Accelerator | NVIDIA Tesla P100 Accelerators CUDA (Pascal GP100) · 3,584C · 1.48 GHz · 16 nm · 300 W 160 GPU-ready R730 nodes with NVIDIA Tesla P100 (Pascal) 16 GB | NVIDIA | 160 reported | Reported | osc.edu |
| CPU | Intel Xeon E5-2680 v4 CPUs x86-64 · 14C · 2.4 GHz · 14 nm · 120 W Xeon E5-2680v4 14C 2.4GHz | Intel | - | Reported | top500.orgosc.edu |
| Interconnect | Mellanox InfiniBand EDR Interconnect Fat tree · 100 Gb/s per 4x port · About 0.9 microseconds Mellanox EDR (100 Gbps) InfiniBand | Mellanox NVDANASDAQ
rolls up to NVIDIA | - | Reported | top500.orgosc.edu |
The read
Ohio Supercomputer Center's Dell cluster installed in 2016: 824 nodes made of 648 PowerEdge C6320 dense nodes, 160 R730 nodes with NVIDIA Tesla P100 GPUs and 16 R930 analytics nodes, with Xeon E5-2680v4 CPUs on Mellanox EDR InfiniBand and about 750 TFLOPS CPU-only peak. OSC lists 23,392 cores; the TOP500 entry used here shows 22,372 cores, 705.97 TFLOPS Rmax and 324 kW and ranked 273rd in June 2017 after a peak of 203rd in November 2016. OSC reports it was partially decommissioned on 6 January 2025, with remaining nodes scheduled to power down on 3 February 2025.
Timeline
- 2016 First operational source
- 2017-06 List debut at #273 (June 2017) source
- 2025-02 Decommissioned source
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Change history
- 2026-10-02 Added Owens at the Ohio Supercomputer Center
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 |
|---|---|---|
| top500.org | names system and part | Intel Xeon E5-2680 v4, Mellanox InfiniBand EDR |
| osc.edu | names system, part and count | Intel Xeon E5-2680 v4, NVIDIA Tesla P100, Mellanox InfiniBand EDR · counts: 160 |
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.