Supercomputers/Systems/Sesterce Marseille SuperComputer
France · operational · ai training
Sesterce Marseille SuperComputer
Operated by Sesterce at Sesterce / Digital Realty Marseille 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
- -
- Rpeak
- -
- 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 | - Deployed and operated by Sesterce, hosted in Digital Realty's Marseille data center | Sesterce | - | Reported | intelligentdatacentres.com |
| Accelerator | NVIDIA H100 SXM5 Accelerators CUDA (Hopper GH100) · 16,896C · 1.98 GHz · TSMC 4N · 700 W NVIDIA H100 Tensor Core GPUs | NVIDIA | - | Reported | intelligentdatacentres.comsolutions-numeriques.com |
| Interconnect | - InfiniBand (generation not specified by any fetched source) | NVIDIA | - | Reported | intelligentdatacentres.comsolutions-numeriques.com |
The read
A French neocloud's NVIDIA H100 cluster hosted in Digital Realty's Marseille data center, announced in late November 2024 as InfiniBand-connected and marketed on renewable-powered, environmentally efficient operation; French trade press reports it followed Sesterce's Paris H200 cluster (on Dell PowerEdge XE9680 nodes) by less than a month. Neither the independent trade coverage found nor Sesterce's own newsroom listing (which no longer surfaces the original announcement page) gives an exact GPU count, interconnect generation, CPU or power figure, so this row carries no FLOPS, rank or accelerator quantity; it has never submitted an HPL result. Sesterce also has a much larger 40,000-GPU campus under construction at Valence, France (targeted for 2026), which is not recorded as its own row because no fetched source names an accelerator vendor or model for that facility yet.
Site & facility
Sesterce / Digital Realty Marseille Data Center
- Location
- Marseille, France
- Commissioned
- 2024
Change history
- 2026-09-24 Sesterce Marseille SuperComputer added (France)
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 |
|---|---|---|
| intelligentdatacentres.com | names system and part | NVIDIA H100 SXM5 |
| solutions-numeriques.com | names system and part | NVIDIA H100 SXM5 |
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.
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.