Supercomputers/Systems/HPC7
Italy · operational · mixed
HPC7
Operated by Eni at Eni Green Data Center .
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
- 571.5 PFlop/s
- Rpeak
- 861.1 PFlop/s
- Rmax ÷ Rpeak
- 66.4%
- Cores
- 3,461,472
- Power
- 8.73 MW
- Per watt
- 65.4 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 | - HPE Cray EX255a | Hewlett Packard Enterprise | - | Verified | eni.comtop500.org |
| Accelerator | AMD Instinct MI300A Accelerators ROCm (CDNA 3) · TSMC N5/N6 · 550 W AMD Instinct MI300A | AMD | - | Verified | eni.comtop500.org |
| CPU | AMD 4th Gen EPYC 24C (in MI300A) CPUs x86-64 · 24C · 1.8 GHz · TSMC N5 AMD 4th Gen EPYC 24C 1.8GHz (integrated in MI300A) | AMD | - | Verified | eni.comtop500.org |
| Interconnect | HPE Slingshot-11 Interconnect Dragonfly · 200 Gb/s per port · Around 2 microseconds Slingshot-11 | Hewlett Packard Enterprise | - | Verified | eni.comtop500.org |
| Storage | HPE Cray ClusterStor E2000 Storage HPE Cray ClusterStor E2000 | Hewlett Packard Enterprise | - | Reported | eni.com |
| Cooling | Direct liquid cooling, warm water Cooling Direct-to-chip cold plates, facility water loop · Removes 90+ percent of node heat to liquid innovative liquid cooling system, direct liquid cooling dissipating 96% of heat | Hewlett Packard Enterprise | - | Reported | eni.comdecode39.com |
| Operating system | Red Hat Enterprise Linux Operating systems Linux distribution · Open source, commercial support subscription RHEL 9 | Red Hat | - | Reported | top500.org |
The read
HPC7 shares El Capitan's exact node design, the MI300A APU pairing a 24-core Zen 4 CPU with CDNA 3 GPU chiplets on unified HBM3: two systems built around the same silicon six months apart, one a US stockpile-stewardship machine and the other a European energy company's seismic-imaging cluster. Eni's own release states HPC7 does not replace HPC6, and the pair's combined Rmax already clears an exaflop between them. Eni's own page names artificial intelligence and molecular modeling alongside the oil-and-gas workloads HPC6 already carries, which is why this row is tagged mixed rather than hpc; no independent source has corroborated the AI-use claim specifically.
Timeline
- 2026-06 Announced source
- 2026-06 List debut at #6 (June 2026) source
- 2026-06 First operational source
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
Change history
- 2026-09-22 Gained a Green500 rank pointer (#11 on the 2026-06 list)
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 | AMD Instinct MI300A, HPE Slingshot-11, HPE Cray ClusterStor E2000 |
| eni.com | names system and part | AMD Instinct MI300A, Direct liquid cooling, warm water, HPE Cray ClusterStor E2000 |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.
Further reading
Inside a node
Why accelerators exist, what the memory hierarchy costs, and how the CPU and accelerator merged onto one package.
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.