Companies/Preferred Networks
Tokyo, Japan
Preferred Networks
Japanese AI company that co-developed the MN-Core deep-learning accelerator with Kobe University and operates it in the MN-3 supercomputer line, which topped the Green500 list of the world's most energy-efficient supercomputers four times across 2020 and 2021.
Systems this company appears in
- Systems
- 2
- Aggregate Rmax
- 2.18 PFlop/s
- Aggregate power
- 53.29 kW
- First appearance
- 2019-07
- Most recent
- 2020-05
- Concentration
- 100%
Aggregate Rmax is the sum of the systems this company supplies any part of. It is not revenue and not attributable share: an integrator and a memory vendor in the same machine both count its full FLOPS here. Attribution weighted by role is Phase 4.
Role breakdown
| Role | Systems | Rmax in those systems |
|---|---|---|
| Integrator | 2 | 2.18 PFlop/s |
| Accelerator | 1 | 2.18 PFlop/s |
| Interconnect | 1 | 2.18 PFlop/s |
Appearances
| System | Supplied as | Shipped under | Rmax | Rank |
|---|---|---|---|---|
| MN-3 Japan · 2020-05 | Accelerator, Interconnect, Integrator | Preferred Networks | 2.18 PFlop/s | #1 November 2021 → |
| MN-2 Japan · 2019-07 | Integrator | Preferred Networks | - | unranked |
Parts supplied
| Part | Category | Generation | Released |
|---|---|---|---|
| MN-Core DirectConnect | Interconnect | DirectConnect | 2020 |
| Preferred Networks MN-Core (1st generation) | Accelerators | MN-Core 1 | 2018 |
AI datacenters operated
Figures come from the AI datacenter metrics; blank means none recorded.
Sites operated
| Site | Location | Cooling | Commissioned |
|---|---|---|---|
| Preferred Networks (Yokohama) | Yokohama, Japan | - | 2020 |
Further reading
Inside a node
Why accelerators exist, what the memory hierarchy costs, and how the CPU and accelerator merged onto one package.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.