Supercomputers/Systems/Virga
Australia · operational · mixed
Virga
Also known as CSIRO Virga
Operated by CSIRO at CDC Hume Data Centre (Canberra) .
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
- 14.94 PFlop/s
- Rpeak
- 18.46 PFlop/s
- Rmax ÷ Rpeak
- 80.9%
- Cores
- 60,000
- 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 | - Dell PowerEdge XE9640 | Dell Technologies | - | Verified | top500.orgcsiro.au |
| Accelerator | NVIDIA H100 SXM5 94GB Accelerators CUDA (Hopper GH100) · 16,896C · 1.98 GHz · TSMC 4N · 700 W NVIDIA H100 SXM5 94GB | NVIDIA | - | Verified | top500.orgcsiro.au |
| CPU | - Intel Xeon Platinum 8452Y 36C 2GHz | Intel | - | Verified | top500.orgcsiro.au |
| Interconnect | NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds Infiniband NDR | NVIDIA | - | Reported | top500.org |
The read
CSIRO's AI and data-science cluster in the CDC Hume data centre in Canberra, launched on 28 June 2024. CSIRO describes Dell PowerEdge XE9640 servers with NVIDIA H100 GPUs (94GB HBM each) and 4th-generation Intel Xeon processors, cooled by hybrid direct liquid cooling and described as the first deployment of that server in Australia. TOP500 lists 60,000 cores (Xeon Platinum 8452Y), InfiniBand NDR, Rmax 14.94 PFlop/s and Rpeak 18.46 PFlop/s; it debuted at 72nd on the June 2024 list and was still listed on June 2026. Workload is classed mixed because CSIRO cites medical imaging, robotics and sensing alongside AI.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Site & facility
Change history
- 2026-10-02 Added Virga, CSIRO's H100 cluster in Canberra, 72nd on the June 2024 TOP500
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 |
|---|---|---|
| top500.org | names system and part | NVIDIA H100 SXM5 94GB, NVIDIA InfiniBand NDR (Quantum-2) |
| csiro.au | blocked our fetch | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.
Further reading
Operating a supercomputer
Acceptance testing, why "installed" and "in production" are six months apart, and the machine lifecycle.
Inside a node
Why accelerators exist, what the memory hierarchy costs, and how the CPU and accelerator merged onto one package.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.