USA · operational · hpc

Bridges-2

Operated by PSC at Pittsburgh Supercomputing Center .

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: -
Rmax ÷ Rpeak: -
Cores: -
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
Accelerator	NVIDIA Tesla V100 Accelerators CUDA (Volta GV100) · 5,120C · 1.53 GHz · 12 nm · 300 W 33 nodes of eight V100 and one node of sixteen V100	NVIDIA NVDANASDAQ	280 estimated	Reported	psc.edu
Accelerator	NVIDIA H100 SXM5 Accelerators CUDA (Hopper GH100) · 16,896C · 1.98 GHz · TSMC 4N · 700 W 10 nodes of eight NVIDIA H100 SXM5	NVIDIA NVDANASDAQ	80 estimated	Reported	psc.edu psc.edu
CPU	AMD EPYC 7742 (Rome) CPUs x86-64 · 64C · 2.25 GHz · 7 nm · 225 W AMD EPYC 7742, 488 regular-memory nodes	AMD AMDNASDAQ	-	Reported	psc.edu
Interconnect	NVIDIA InfiniBand HDR Interconnect Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds Mellanox HDR-200 InfiniBand HDR	NVIDIA NVDANASDAQ	-	Reported	psc.edu
Storage	HPE Cray ClusterStor E1000 Storage Lustre appliance, flash and disk tiers · 700 PB on Frontier (Orion) · About 10 TB/s peak Ocean, 15 PB usable, Cray ClusterStor E1000	Hewlett Packard Enterprise HPENYSE	-	Reported	psc.edu

The read

PSC's NSF-funded system of AMD EPYC 7742 nodes and a mixed GPU fleet (V100, H100 and L40S), in service since March 2021 and expanded with H100 nodes under a later award. PSC and the NSF record independently confirm the funding. PSC names Cray ClusterStor for storage but never states who built the system, so no integrator is recorded. It has never submitted to TOP500.

Timeline

2021-03 First operational source

Site & facility

Pittsburgh Supercomputing Center

Location: Pittsburgh, PA, USA
Commissioned: 2021

psc.edu

Change history

2026-09-20 Added, funding verified against the NSF award record

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
api.nsf.gov	names system, part and count	NVIDIA InfiniBand HDR · counts: 80
psc.edu	names system, part and count	AMD EPYC 7742 (Rome), NVIDIA Tesla V100, NVIDIA H100 SXM5, NVIDIA InfiniBand HDR · counts: 280, 80

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