Supercomputers/Systems/Ogbon
Brazil · operational · hpc
Ogbon
Also known as Ogbon Cimatec/Petrobras
Operated by SENAI CIMATEC at SENAI CIMATEC Supercomputing Centre .
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
- 1.60 PFlop/s
- Rpeak
- 2.32 PFlop/s
- Rmax ÷ Rpeak
- 69.0%
- Cores
- 27,768
- 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 | - Bull Sequana X1000 (TOP500 manufacturer: Bull) | Bull | - | Reported | top500.org |
| Accelerator | NVIDIA Tesla V100 Accelerators CUDA (Volta GV100) · 5,120C · 1.53 GHz · 12 nm · 300 W NVIDIA Tesla V100 SXM2 (TOP500 listing; GPU count not stated) | NVIDIA | - | Reported | top500.org |
| CPU | - Intel Xeon Gold 6240 18C 2.6GHz (TOP500 listing) | Intel | - | Reported | top500.org |
| Interconnect | Mellanox InfiniBand EDR Interconnect Fat tree · 100 Gb/s per 4x port · About 0.9 microseconds Mellanox InfiniBand EDR (TOP500 listing) | NVIDIA | - | Reported | top500.org |
The read
A Bull Sequana X1000 GPU system at the SENAI CIMATEC Supercomputing Centre in Salvador, Bahia, listed by TOP500 as Ogbon Cimatec/Petrobras. TOP500 gives Xeon Gold 6240 18C 2.6GHz CPUs, NVIDIA Tesla V100 SXM2 GPUs and Mellanox InfiniBand EDR, 27,768 cores, 1.60 PFlop/s Rmax and 2.32 PFlop/s Rpeak; it debuted at rank 347 on the November 2019 list and was last listed at rank 479 in June 2021, which is the basis for the status date. SENAI CIMATEC's own article confirms the November 2019 rank of 347 and that it was third in Brazil. Node and GPU counts and power are not given in the sources used, and the extent of Petrobras's role is not described there.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
SENAI CIMATEC Supercomputing Centre
- Location
- Salvador, Brazil
Change history
- 2026-10-02 Added Ogbon, SENAI CIMATEC's Bull Sequana V100 system
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 Tesla V100, Mellanox InfiniBand EDR |
| universidadesenaicimatec.edu.br | names system only | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.
Further reading
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.
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.