Supercomputers/Systems/AIST AI Cloud
Japan · operational · ai training
AIST AI Cloud
Also known as AAIC
Operated by AIST .
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
- 961.00 TFlop/s
- Rpeak
- 2.15 PFlop/s
- Rmax ÷ Rpeak
- 44.7%
- Cores
- 23,400
- Power
- 75.78 kW
- Per watt
- 12.7 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 | - NEC 4U-8GPU Server | NEC | - | Reported | top500.orgairc.aist.go.jp |
| Accelerator | NVIDIA Tesla P100 Accelerators CUDA (Pascal GP100) · 3,584C · 1.48 GHz · 16 nm · 300 W NVIDIA Tesla P100 SXM2, eight per node across 50 GPU nodes | NVIDIA | 400 reported | Reported | airc.aist.go.jptop500.org |
| CPU | - Intel Xeon E5-2630L v4 10C 1.8GHz, two per node across 50 GPU nodes | Intel | 100 estimated | Reported | airc.aist.go.jptop500.org |
| Interconnect | Mellanox InfiniBand EDR Interconnect Fat tree · 100 Gb/s per 4x port · About 0.9 microseconds Infiniband EDR | Mellanox NVDANASDAQ
rolls up to NVIDIA | - | Reported | airc.aist.go.jptop500.org |
The read
AIST Artificial Intelligence Cloud (AAIC), the prototype shared AI platform that preceded ABCI: 50 GPU nodes of two Xeon E5-2630L v4 10-core CPUs and eight NVIDIA Tesla P100 GPUs each (400 GPUs), plus 68 non-GPU nodes, 4 PB of shared GPFS storage and Infiniband EDR, per AIST's own page; TOP500 lists it as an NEC 4U-8GPU Server system. It ranked third on the June 2017 Green500 at 12.681 GFlops/Watt (961 TFlop/s Rmax on 75.78 kW; TOP500 rank 149) and stayed on the TOP500 through November 2018. Trade press describes it as the proof of concept for the later ABCI.
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
- 2026-10-07 Added AIST AI Cloud
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, part and count | NVIDIA Tesla P100, Mellanox InfiniBand EDR · counts: 400 |
| airc.aist.go.jp | names system, part and count | Mellanox InfiniBand EDR · counts: 400 |
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.