Norway · decommissioned · hpc

Abel (UiO)

Also known as Abel University of Oslo

Operated by University of Oslo at University of Oslo (Abel site) .

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: 178.60 TFlop/s
Rpeak: 209.66 TFlop/s
Rmax ÷ Rpeak: 85.2%
Cores: 10,080
Power: 227 kW
Per watt: 0.8 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	- MEGWARE MiriQuid 2600	MEGWARE	-	Verified	top500.org sigma2.no
CPU	Intel Xeon E5-2670 CPUs x86-64 · 8C · 2.6 GHz · 32 nm · 115 W Xeon E5-2670 8C 2.6GHz (Sandy Bridge)	Intel INTCNASDAQ	-	Verified	top500.org sigma2.no
Interconnect	Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond Mellanox FDR InfiniBand	Mellanox NVDANASDAQ rolls up to NVIDIA	-	Verified	top500.org megware.com

The read

General-purpose MEGWARE MiriQuid 2600 cluster at the University of Oslo, 96th on the June 2012 TOP500 and part of the Notur national infrastructure funded by the Research Council of Norway and UiO. TOP500 lists 10,080 cores of Xeon E5-2670 8-core 2.6 GHz on Mellanox FDR InfiniBand with 178.6 TFlop/s Rmax and 209.66 TFlop/s Rpeak; MEGWARE describes over 10,000 Sandy Bridge cores and nearly 260 TFlop/s peak, and Sigma2's system page gives 258 TFlop/s peak, 650+ nodes and a 2020 decommissioning. The peak figure here is TOP500's HPL-run value. The dataset's separate Abel system is PGS's, a different machine.

Timeline

2012 First operational source
2012-11 List debut at #134 (November 2012) source
2020 Decommissioned source

Public list appearances

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

#134: TOP500, November 2012 →

Site & facility

University of Oslo (Abel site)

Location: Oslo, Norway
Commissioned: 2012

sigma2.no megware.com

Change history

2026-10-02 Added Abel, University of Oslo 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.

Every source cited on this page was readable, and none of them mentions this system. They are cited at page granularity, normally because no stable deep link could be found. That is a real weakness in this row and it is why the system carries a confidence tier below verified. See how this check works.

Cited source	Result	Found on the page
megware.com	does not name this system	Mellanox InfiniBand FDR
top500.org	does not name this system	Intel Xeon E5-2670, Mellanox InfiniBand FDR

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