Supercomputers/Systems/Laurel 3
Japan · operational · hpc
Laurel 3
Also known as Kyoto University System B
Operated by Kyoto University ACCMS .
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
- -
- Rpeak
- 2.65 PFlop/s
- Rmax ÷ Rpeak
- -
- Cores
- -
- Power
- -
- Per watt
- - 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 integrator; 370 Dell PowerEdge C6620 nodes | NEC | - | Reported | intel.com |
| CPU | - Intel Xeon Platinum 8480+, 56 cores, 370 nodes | Intel | - | Verified | iimc.kyoto-u.ac.jpintel.com |
| Interconnect | NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds 400 Gbps InfiniBand fabric shared by the Kyoto 2023 systems | NVIDIA | - | Reported | intel.com |
The read
The general-purpose CPU system (System B) of Kyoto University's 2023 supercomputer procurement, delivered alongside Camphor 3 and Cinnamon 3. Kyoto's specification page lists 370 nodes of Intel Xeon Platinum 8480+ (56 cores), 512 GiB per node, 185 TiB in total and 2.65 PFlop/s peak; Intel's customer story independently gives the same 370 nodes, 512 GB per node and 2.65 PFlop/s, on Dell PowerEdge C6620 servers integrated by NEC over a 400 Gbps InfiniBand fabric, with Laurel 3 and Cinnamon 3 active from mid-2023 (the centre now styles itself the Institute for Information Management and Communication). Neither page states a total core count, so none is recorded. Laurel 3 has no TOP500 entry of its own; Camphor 3 is the listed system.
Timeline
- 2023 First operational source
Change history
- 2026-10-04 Added Laurel 3 (kyoto-accms)
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 |
|---|---|---|
| iimc.kyoto-u.ac.jp | names system only | - |
| intel.com | names system and part | NVIDIA InfiniBand NDR (Quantum-2) |
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.