Supercomputers/Systems/HokieSpeed
USA · decommissioned · hpc
HokieSpeed
Operated by Virginia Tech .
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
- 120.40 TFlop/s
- Rpeak
- 238.20 TFlop/s
- Rmax ÷ Rpeak
- 50.5%
- Cores
- 8,320
- Power
- 126.27 kW
- Per watt
- 1.0 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 | - Supermicro SuperServer 2026GT-TRF nodes, 209 nodes | Supermicro | - | Reported | top500.orgeurekalert.org |
| Accelerator | NVIDIA Tesla M2050 Accelerators CUDA (Fermi) · 448C · 1.15 GHz · 40 nm · 225 W Two NVIDIA M2050/C2050 448-core GPUs per node | NVIDIA | - | Reported | top500.orgeurekalert.org |
| CPU | - Two Intel Xeon E5645 6-core 2.40 GHz CPUs per node | Intel | - | Reported | top500.orgeurekalert.org |
| Interconnect | Mellanox InfiniBand QDR Interconnect Fat tree · 40 Gb/s per 4x port InfiniBand QDR | Mellanox NVDANASDAQ
rolls up to NVIDIA | - | Reported | top500.org |
The read
Virginia Tech's GPU-accelerated cluster from Wu Feng's group: 209 Supermicro 2026GT-TRF nodes, each with two 2.40 GHz Xeon E5645 6-core CPUs and two NVIDIA M2050/C2050 448-core GPUs on InfiniBand QDR. The university's December 2011 release quotes 240 TFLOPS double-precision peak, 96th on the November 2011 TOP500 and 11th on the Green500, a 1.4 million dollar build under a 2 million dollar NSF Major Research Instrumentation grant. TOP500 lists 120.40 TFLOPS Rmax, 126 kW and 8,320 cores, and it ranked 147th on the June 2012 list. No retirement date appears in the pages we cited, so the status date is the data refresh.
Timeline
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 HokieSpeed, Virginia Tech's GPU cluster
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 | Mellanox InfiniBand QDR |
| eurekalert.org | names system only | - |
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.