Supercomputers/Systems/Galera Plus
Poland · operational · hpc
Galera Plus
Also known as CI TASK Galera Plus
Operated by CI TASK at CI TASK Data Centre (Gdansk) .
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
- 65.59 TFlop/s
- Rpeak
- 97.76 TFlop/s
- Rmax ÷ Rpeak
- 67.1%
- Cores
- 10,384
- 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 | - ACTION cluster of HP BL2x220 and BL490 blades (TOP500 listing) | ACTION S.A. | - | Reported | top500.org |
| CPU | - Intel Xeon L5640 6-core 2.26 GHz and E5345 quad-core blades, 10,384 cores in total | Intel | - | Reported | top500.org |
| Interconnect | Mellanox InfiniBand QDR Interconnect Fat tree · 40 Gb/s per 4x port InfiniBand QDR | NVIDIA | - | Reported | top500.org |
The read
The extension of CI TASK's Galera cluster at the Gdansk University of Technology. TASK's history page says the Galera Plus compute cluster of 51 TFlop/s was bought and brought into service under the MayDay project (July 2010 to January 2013), building on the Galera cluster for real-time analysis of multimedia streams. TOP500 lists an ACTION system of HP BL2x220 and BL490 blades (Xeon E5345 and L5640) on InfiniBand QDR with 10,384 cores, 65.59 TFlop/s Rmax and 97.76 TFlop/s Rpeak, 163rd in June 2011, 279th in November 2011 and 447th in June 2012. The 10,384-core total is about twice the 5,336 cores of the original Galera entry, which suggests the listing covers the combined cluster, but that is an inference. The status date is its last list appearance and TOP500 gives the hardware, so the tier is reported.
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
Change history
- 2026-10-09 Galera Plus added from its source pages
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 |
|---|---|---|
| task.gda.pl | names system and part | Mellanox InfiniBand QDR |
| top500.org | names system and part | Mellanox InfiniBand QDR |
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.