France · upgraded · hpc

Pangea II

Operated by TotalEnergies at TotalEnergies CSTJF (Pau) .

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: 5.28 PFlop/s
Rpeak: 6.71 PFlop/s
Rmax ÷ Rpeak: 78.7%
Cores: 220,800
Power: 4.15 MW
Per watt: 1.3 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	SGI HPENYSE rolls up to Hewlett Packard Enterprise	-	Verified	top500.org computerworld.com
CPU	- Xeon E5-2680 v3 12C 2.5GHz nodes added in the 2016 upgrade alongside earlier Xeon E5-2670 nodes, totaling 220,800 cores	Intel INTCNASDAQ	-	Reported	top500.org
Interconnect	Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond InfiniBand FDR	NVIDIA NVDANASDAQ	-	Reported	top500.org
Operating system	SUSE Linux Enterprise Server Operating systems Linux distribution · Open source, commercial support subscription SUSE Linux Enterprise Server 11	SUSE	-	Reported	top500.org

The read

TotalEnergies' SGI ICE X supercomputer at the CSTJF site in Pau, the machine TOP500 tracks as a single evolving entry (plain 'Pangea', system id 178071) that grew from an original 2013 installation of 110,400 Xeon E5-2670 cores at 2.3 PFlop/s peak to 220,800 cores after a 2016 upgrade that added Xeon E5-2680 v3 nodes, reaching Rmax 5.28 PFlop/s and Rpeak 6.71 PFlop/s on InfiniBand FDR. Computerworld's coverage and TheInquirer both independently confirm the 6.7 PFlop/s figure and the March 29, 2016 upgrade date. Industry press and Total's own Pau site subsequently referred to the upgraded machine as Pangea II, distinct from the newer IBM POWER9 Pangea III (2019) already in this dataset, whose own notes flag that TOP500's plain 'Pangea' is a different, older SGI machine; this row is that machine. Ranked 12th on the June 2013 TOP500 list before the upgrade and 11th in June 2016 after it; still listed as of June 2025 at rank 237, so status is recorded as upgraded rather than decommissioned.

Timeline

2016-03-29 Announced source
2016-06 List debut at #11 (June 2016) source
2016-06 First operational source

Public list appearances

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

#11: TOP500, June 2016 →

Site & facility

TotalEnergies CSTJF (Pau)

Location: Pau, France
Commissioned: 2019

cstjf-pau.totalenergies.fr

Change history

2026-09-27 Pangea II added, TotalEnergies' 2016-upgraded SGI ICE X supercomputer at Pau, predecessor to Pangea III/Pangea 4

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
computerworld.com	names system only	-
top500.org	names system and part	Mellanox InfiniBand FDR, SUSE Linux Enterprise Server

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