Supercomputers/Systems/Lyapunov
Russia · operational · ai training
Lyapunov
Operated by Yandex .
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
- 12.81 PFlop/s
- Rpeak
- 20.03 PFlop/s
- Rmax ÷ Rpeak
- 64.0%
- Cores
- 130,944
- Power
- 323 kW
- Per watt
- 39.7 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 | - Inspur NF5488A5, 137 nodes | Inspur | - | Reported | top500.orgyandex.com |
| Accelerator | NVIDIA A100 SXM4 40GB Accelerators CUDA (Ampere GA100) · 6,912C · 1.41 GHz · 7 nm · 400 W NVIDIA A100 40GB, 1,096 GPUs (per Yandex) | NVIDIA | 1,096 reported | Reported | yandex.comtop500.org |
| CPU | - AMD EPYC 7662 64C 2GHz | AMD | - | Reported | top500.org |
| Interconnect | - InfiniBand with Mellanox switches | Mellanox NVDANASDAQ
rolls up to NVIDIA | - | Verified | top500.orgyandex.com |
| Operating system | Ubuntu Server Operating systems Linux distribution · Open source, free with paid support tiers Ubuntu 16.04 | Canonical | - | Reported | top500.org |
The read
Yandex's A100 40 GB machine-learning supercomputer, named for the mathematician Alexey Lyapunov and built on Inspur NF5488A5 servers. Yandex lists 137 nodes with 1,096 NVIDIA A100 40 GB GPUs, 17,536 CPU cores and 323 kW, and TOP500 lists 130,944 cores (including GPU cores) of AMD EPYC 7662 with InfiniBand, 12.81 PFlop/s Rmax and a November 2021 debut at rank 40; both sources agree on Rmax and that rank, and it was still on the June 2026 list at rank 161. TOP500 gives a 2020 installation year. No physical site is published, so the row is left unlocated. The GPU count is stated by Yandex alone.
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
- 2026-10-01 Added Lyapunov (Yandex)
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 | NVIDIA A100 SXM4 40GB, Ubuntu Server |
| yandex.com | names system, part and count | NVIDIA A100 SXM4 40GB · counts: 1096 |
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
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.