Supercomputers/Systems/Aitzaloa
Mexico · operational · hpc
Aitzaloa
Also known as Aitzaloa UAM-I
Operated by UAM Iztapalapa .
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
- 18.48 TFlop/s
- Rpeak
- 25.44 TFlop/s
- Rmax ÷ Rpeak
- 72.6%
- Cores
- 2,120
- 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 | - LUFAC Computacion cluster built with UAM Iztapalapa | LUFAC Computacion | - | Reported | top500.orgdiarioti.com |
| CPU | Intel Xeon E5450 CPUs x86-64 · 4C · 3 GHz · 45 nm · 120 W Intel Xeon E5450 4C 3.0GHz, 540 quad-core processors | Intel | 540 reported | Reported | diarioti.comtop500.org |
| Interconnect | Mellanox InfiniBand DDR Interconnect Fat tree · 20 Gb/s per 4x port · About 2 microseconds InfiniBand DDR 4x interconnect | NVIDIA | - | Reported | top500.org |
The read
Cluster of the Laboratory for Supercomputing and Parallel Visualization at the Universidad Autonoma Metropolitana, Iztapalapa campus in Mexico City, presented in December 2008 and billed as the most powerful machine in Latin America at the time. TOP500 lists a LUFAC cluster of Intel Xeon E5450 4C 3.0GHz on 4x DDR InfiniBand, 2,120 cores, Rmax 18.48 and Rpeak 25.44 TFlop/s, ranked 226th in November 2008 and 441st in June 2009. DiarioTI describes 540 quad-core Intel processors for 2,160 cores and 18.48 TFlop/s, built with Intel and business partners; the Spanish Wikipedia entry adds 4,320 GB of RAM, a cost of 12 million pesos and integration work by the university's computer science students. The 2,120 cores recorded follow TOP500; the press figure is 2,160. The June 2009 list is the last evidence found.
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 Aitzaloa at UAM Iztapalapa
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 |
|---|---|---|
| diarioti.com | names system only | · counts: 540 |
| top500.org | names system and part | Intel Xeon E5450, Mellanox InfiniBand DDR |
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.