SuperMUC Phase 2

Operated by LRZ at Leibniz Supercomputing Centre, Garching .

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: 2.81 PFlop/s
Rpeak: 3.58 PFlop/s
Rmax ÷ Rpeak: 78.5%
Cores: 86,016
Power: 1.48 MW
Per watt: 1.9 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	- Lenovo NeXtScale nx360 M5, 3,072 nodes across six islands	Lenovo 992HKEX	-	Verified	top500.org doku.lrz.de
CPU	Intel Xeon E5-2697 v3 CPUs x86-64 · 14C · 2.6 GHz · 22 nm · 145 W Xeon E5-2697 v3 14C 2.62GHz, two per node	Intel INTCNASDAQ	-	Verified	top500.org doku.lrz.de
Interconnect	Mellanox InfiniBand FDR Interconnect Fat tree · 56 Gb/s per 4x port · About 1 microsecond InfiniBand FDR14, pruned 4:1 tree between islands	NVIDIA NVDANASDAQ	-	Verified	top500.org doku.lrz.de
Storage	IBM Spectrum Scale ESS (GPFS) Storage Parallel filesystem (GPFS), erasure-coded declustered RAID · 250 PB on Summit (Alpine) · About 2.5 TB/s IBM GPFS, shared with SuperMUC Phase 1	IBM IBMNYSE	-	Reported	doku.lrz.de
Cooling	Direct liquid cooling, warm water Cooling Direct-to-chip cold plates, facility water loop · Removes 90+ percent of node heat to liquid High Temperature Liquid Cooling, shared design with SuperMUC Phase 1	Lenovo 992HKEX	-	Reported	doku.lrz.de

The read

The Haswell-generation extension to SuperMUC, 3,072 Lenovo NeXtScale nx360 M5 nodes across six network islands, 21st on the June 2015 TOP500. LRZ's own page and TOP500 independently name the NeXtScale hardware and the Xeon E5-2697 v3 processor, so those edges are verified; Rmax, Rpeak and core count are TOP500's alone. It shared SuperMUC's GPFS storage and warm-water cooling and retired alongside it at the end of 2019, ahead of SuperMUC-NG. Recorded as its own row because TOP500 lists it as a distinct system entry from Phase 1, the same split this dataset already applies to Snellius and MareNostrum 5. TOP500 is the only source for Rmax, Rpeak and core count, so the tier is reported.

Timeline

2015-06 List debut at #21 (June 2015) source
2015-06 First operational source
2019-12 Decommissioned at year end, fully superseded by SuperMUC-NG source
2019-12 Decommissioned source

Public list appearances

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

#21: TOP500, June 2015 →

Site & facility

Leibniz Supercomputing Centre, Garching

Location: Garching, Germany
Cooling: Direct warm-water cooling
Commissioned: 2006

doku.lrz.de

Change history

2026-09-23 Added as its own row, matching how TOP500 lists it separately from SuperMUC Phase 1

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
doku.lrz.de	blocked our fetch	-
top500.org	names system and part	Intel Xeon E5-2697 v3, Mellanox InfiniBand FDR

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