Czechia · decommissioned · hpc

Salomon

Operated by IT4Innovations at IT4Innovations, Ostrava .

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: 1.46 PFlop/s
Rpeak: 2.01 PFlop/s
Rmax ÷ Rpeak: 72.6%
Cores: 76,896
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	- SGI ICE X, 1,008 compute nodes	SGI HPENYSE rolls up to Hewlett Packard Enterprise	-	Reported	top500.org it4i.cz
Accelerator	- 864 Intel Xeon Phi 7120P coprocessors, two on each of 432 nodes	Intel INTCNASDAQ	864 reported	Reported	it4i.cz top500.org
CPU	- Intel Xeon E5-2680v3 12C 2.5GHz, two per node on 1,008 nodes (24,192 cores)	Intel INTCNASDAQ	2,016 estimated	Verified	it4i.cz top500.org
Interconnect	Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond InfiniBand FDR 56 Gb/s	Mellanox NVDANASDAQ rolls up to NVIDIA	-	Verified	it4i.cz top500.org
Operating system	CentOS Operating systems Linux distribution, RHEL-compatible rebuild · Open source, community-maintained CentOS 7.x	The CentOS Project IBMNYSE rolls up to IBM	-	Verified	it4i.cz top500.org

The read

IT4Innovations's SGI ICE X cluster at Ostrava, a 2 PFlop/s-class machine: 1,008 nodes with two 12-core Xeon E5-2680v3 CPUs (24,192 cores) and 432 nodes also carrying two Intel Xeon Phi 7120P cards each (864 in all), on InfiniBand FDR with about 2.1 PB of storage. It debuted 40th on the June 2015 TOP500 and was listed through November 2020 (down to 460th). IT4I states 2,011 TFlop/s peak, matching TOP500's Rpeak. Its final task ran on 13 December 2021, after 6 years, 1,085 projects and 1,024 million core-hours. It was sold to a Dutch company for partial refurbishment. TOP500 lists HPE as manufacturer after its SGI acquisition, and the 76,896 total includes Xeon Phi cores. TOP500 is the only source for Rmax, so the tier is reported.

Timeline

2015-06 List debut at #40 (June 2015) source
2015-09-15 First operational source
2021-12-13 Decommissioned source

Public list appearances

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

#40: TOP500, June 2015 →

Site & facility

IT4Innovations, Ostrava

Location: Ostrava, Czechia
Cooling: Direct liquid cooling
Commissioned: 2013

it4i.cz

Change history

2026-10-01 Added Salomon (IT4Innovations)

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
it4i.cz	names system and part	Mellanox InfiniBand FDR, CentOS
top500.org	names system and part	Mellanox InfiniBand FDR, CentOS

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