Canada · decommissioned · hpc

Guillimin

Also known as McGill Guillimin iDataPlex cluster

Operated by Calcul Québec at École de technologie supérieure (Calcul Québec) .

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: 136.30 TFlop/s
Rpeak: 153.22 TFlop/s
Rmax ÷ Rpeak: 89.0%
Cores: 14,400
Power: 337 kW
Per watt: 0.4 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	- IBM iDataPlex DX360M3	IBM IBMNYSE	-	Reported	top500.org mcgill.ca
CPU	Intel Xeon X5650 CPUs x86-64 · 6C · 2.66 GHz · 32 nm · 95 W Xeon X5650 6C 2.66 GHz	Intel INTCNASDAQ	-	Reported	top500.org
Interconnect	Mellanox InfiniBand QDR Interconnect Fat tree · 40 Gb/s per 4x port Infiniband QDR	NVIDIA NVDANASDAQ	-	Reported	top500.org

The read

IBM iDataPlex cluster bought by McGill University for the CLUMEQ consortium under an 8.3 million CAD contract announced in June 2011 and housed at the Ecole de technologie superieure in Montreal; CLUMEQ later folded into Calcul Quebec. TOP500 lists 14,400 Xeon X5650 6-core 2.66 GHz cores on InfiniBand QDR, 55th on the June 2011 list with 136.3 TFlop/s Rmax and 337 kW.

Timeline

2011 First operational source
2011-06 List debut at #55 (June 2011) source
2011-06-14 Announced source

Public list appearances

Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.

#55: TOP500, June 2011 →

Site & facility

École de technologie supérieure (Calcul Québec)

Location: Montreal, Canada
Commissioned: 2021

top500.org calculquebec.ca

Change history

2026-10-02 Added Guillimin, McGill and CLUMEQ's iDataPlex cluster

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
mcgill.ca	does not name this system	-
top500.org	names system and part	Intel Xeon X5650, Mellanox InfiniBand QDR

Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.