USA · operational · hpc

Gaea

Also known as NOAA RDHPCS Gaea

Operated by NOAA at Oak Ridge Leadership Computing Facility .

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: -
Rpeak: 25.32 PFlop/s
Rmax ÷ Rpeak: -
Cores: 638,976
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	- HPE Cray EX (C5 and C6 clusters)	Hewlett Packard Enterprise HPENYSE	-	Reported	docs.rdhpcs.noaa.gov ornl.gov
CPU	AMD EPYC 7H12 (Rome, high frequency) CPUs x86-64 · 64C · 2.6 GHz · 7 nm · 280 W C5: 1,920 nodes, 2x AMD EPYC 7H12 2.6GHz per node	AMD AMDNASDAQ	-	Reported	docs.rdhpcs.noaa.gov
CPU	AMD EPYC 9004 (Genoa) CPUs x86-64 · 96C · 2.4 GHz · TSMC N5 · 360 W C6: 2,048 nodes, 2x AMD EPYC 9654 2.4GHz per node	AMD AMDNASDAQ	-	Reported	docs.rdhpcs.noaa.gov
Interconnect	HPE Slingshot-10 Interconnect Dragonfly · 100 Gb/s per port C5: HPE Slingshot 100 Gbps (dual NICs)	Hewlett Packard Enterprise HPENYSE	-	Reported	docs.rdhpcs.noaa.gov
Interconnect	HPE Slingshot-11 Interconnect Dragonfly · 200 Gb/s per port · Around 2 microseconds C6: HPE Slingshot 200 Gbps	Hewlett Packard Enterprise HPENYSE	-	Reported	docs.rdhpcs.noaa.gov
Storage	IBM Spectrum Scale ESS (GPFS) Storage Parallel filesystem (GPFS), erasure-coded declustered RAID · 250 PB on Summit (Alpine) · About 2.5 TB/s F5 and F6 IBM Spectrum Scale (GPFS) file systems, 75 PB each	IBM IBMNYSE	-	Reported	docs.rdhpcs.noaa.gov

The read

NOAA's research and development climate and weather supercomputer, operated by the National Center for Computational Sciences at Oak Ridge National Laboratory in a DOE-NOAA partnership; earlier Gaea generations date back to 2010, and this row covers the current HPE Cray EX pair. NOAA's user guide lists two clusters: C5 with 1,920 nodes of two AMD EPYC 7H12 processors (128 cores per node) on Slingshot with 10.22 petaflops peak, and C6 with 2,048 nodes of two AMD EPYC 9654 processors (192 cores per node) on 200 Gbps Slingshot with 15.1 petaflops peak (base), each with a 75 PB IBM Spectrum Scale file system. The peak figure here is the sum of the two stated cluster peaks (10.22 plus 15.1) and the core count is derived from the stated node counts (245,760 plus 393,216). ORNL's news release confirms the C5 launch on April 12, 2023 with over 10 petaflops. The NOAA page's own aggregate line still says greater than 20 petaflops, so the summed figure is an approximation; no TOP500 entry is recorded.

Timeline

2023-04 First operational source

Site & facility

Oak Ridge Leadership Computing Facility

Location: Oak Ridge, TN, USA
Utility: Tennessee Valley Authority
Cooling: Direct liquid cooling (warm water)
Commissioned: 1993

olcf.ornl.gov ornl.gov

Change history

2026-10-01 Added Gaea (NOAA)

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
docs.rdhpcs.noaa.gov	names system and part	AMD EPYC 7H12 (Rome, high frequency), AMD EPYC 9004 (Genoa), IBM Spectrum Scale ESS (GPFS)
ornl.gov	could not be fetched	-

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