Supercomputers/Systems/Grifo06
Brazil · operational · hpc
Grifo06
Operated by Petrobras .
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: 1263 of 1345 systems have a readable citation that names them, and 56 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
- 160.30 TFlop/s
- Rpeak
- 357.47 TFlop/s
- Rmax ÷ Rpeak
- 44.8%
- Cores
- 10,368
- 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 | - Itautec cluster | Itautec | - | Reported | top500.org |
| Accelerator | - NVIDIA 2075 GPU accelerators as listed by TOP500 | NVIDIA | - | Reported | top500.org |
| CPU | - Intel Xeon E5-2643 4C 3.3GHz | Intel | - | Reported | top500.org |
| Interconnect | Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond InfiniBand FDR | NVIDIA | - | Reported | top500.org |
| Operating system | CentOS Operating systems Linux distribution, RHEL-compatible rebuild · Open source, community-maintained CentOS | The CentOS Project | - | Reported | top500.org |
The read
Petrobras's 2013 Itautec cluster of Xeon E5-2643 4C 3.3GHz processors with NVIDIA 2075 GPU accelerators on InfiniBand FDR, running CentOS with Intel compilers, MKL and OpenMPI: 10,368 cores at 160.3 TFlop/s Rmax and 357.47 TFlop/s Rpeak. It debuted at rank 220 on the June 2013 list and last appeared at rank 458 on November 2014, which is the basis for the status date. A later machine in the same Grifo series as the Grifo04 row already in this dataset; no power figure is listed.
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
- 2026-10-09 Added Grifo06
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 | Mellanox InfiniBand FDR, CentOS |
Checked 2026-10-13 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.