Supercomputers/Systems/CMCC Juno
Italy · operational · hpc
CMCC Juno
Also known as Juno
Operated by CMCC at CMCC Supercomputing Center (Lecce) .
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
- 1.13 PFlop/s
- Rmax ÷ Rpeak
- -
- Cores
- 12,240
- 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 | - Lenovo SD630 v2 nodes (170, dual-socket) | Lenovo | 170 reported | Reported | cmcc.itnews.lenovo.com |
| Accelerator | - NVIDIA A100 GPUs (20) | NVIDIA | 20 reported | Reported | cmcc.it |
| CPU | - Intel Xeon Platinum 8360Y 36C 2.4 GHz (12,240 cores in total) | Intel | - | Reported | cmcc.it |
| Interconnect | NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds InfiniBand HDR 200 Gbps | NVIDIA | - | Reported | cmcc.it |
The read
CMCC's Juno system at the Supercomputing Center in Lecce: 170 Lenovo SD630 v2 dual-socket nodes with Intel Xeon Platinum 8360Y 36-core 2.4 GHz CPUs (12,240 cores), 20 NVIDIA A100 GPUs, 512 GB per node and InfiniBand HDR, about 1,134 TFlop/s theoretical peak, with 11.3 PB of work and 11.7 PB of data storage under IBM Spectrum Scale and Red Hat 8.4. CMCC dates the installation to 2022, when the centre moved into its new Lecce headquarters. Lenovo's May 2024 press release independently describes Juno as installed in 2022 with Intel processors and NVIDIA GPUs at roughly 1.134 PFlop/s. No TOP500 entry was found, so ranked is 0.
Timeline
- 2022 First operational source
Site & facility
Change history
- 2026-10-02 Added CMCC Juno
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 |
|---|---|---|
| news.lenovo.com | names system only | - |
| cmcc.it | names system and part | NVIDIA InfiniBand HDR |
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.