Canada · operational · hpc

Hare (SSC)

Also known as Hare

Operated by Shared Services Canada at Canadian Meteorological Centre (Dorval) .

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: 904.15 TFlop/s
Rpeak: 1.04 PFlop/s
Rmax ÷ Rpeak: 87.3%
Cores: 30,816
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	- Cray XC40 supercomputer	Cray HPENYSE rolls up to Hewlett Packard Enterprise	-	Verified	top500.org ecmwf.int
CPU	Intel Xeon E5-2695 v4 CPUs x86-64 · 18C · 2.1 GHz · 14 nm · 120 W Intel Xeon E5-2695v4 18C 2.1GHz, 30,816 cores	Intel INTCNASDAQ	-	Reported	top500.org
Interconnect	Cray Aries Interconnect Dragonfly · About 10 GB/s per direction · Around 1 microsecond Aries interconnect	Cray HPENYSE rolls up to Hewlett Packard Enterprise	-	Reported	top500.org
Operating system	Cray Linux Environment Operating systems Linux, Cray-customised · Proprietary layer over open-source Linux Cray Linux Environment	Cray HPENYSE rolls up to Hewlett Packard Enterprise	-	Reported	top500.org

The read

Hare is one of the twin Cray XC40 weather supercomputers (with Brooks, identical on TOP500 and not added here) that Shared Services Canada runs for Environment and Climate Change Canada at the Canadian Meteorological Centre in Dorval. TOP500 lists 30,816 cores of Xeon E5-2695v4 18C 2.1GHz on Aries, 0.90 PFlop/s Rmax and 1.04 PFlop/s Rpeak, 163rd in June 2017 (best rank) and 484th in November 2018. The department unveiled Hare and Brooks on 2 November 2017, naming them for Kenneth Hare and Harriet Brooks, and its 2016 procurement presentation to the ECMWF workshop describes an IBM-led bid of a Cray XC-40 with Intel Broadwell and a Lustre store per data hall.

Timeline

2017 First operational source
2017-06 List debut at #163 (June 2017) source

Public list appearances

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

#163: TOP500, June 2017 →

Site & facility

Canadian Meteorological Centre (Dorval)

Location: Dorval, QC, Canada
Commissioned: 2022

canada.ca en.wikipedia.org

Change history

2026-10-07 Added Hare (SSC), a mid-list TOP500 system (2017-06 163)

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	Intel Xeon E5-2695 v4, Cray Aries, Cray Linux Environment
canada.ca	names system only	-

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