Supercomputers/Systems/Met Office Azure Supercomputer
United Kingdom · operational · hpc
Met Office Azure Supercomputer
Operated by Met Office at Met Office Azure Supercomputer (UK) .
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
- 60.00 PFlop/s
- 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 |
|---|---|---|---|---|---|
| Integrator | - HPE Cray EX (four quadrants) | Hewlett Packard Enterprise | - | Reported | azure.microsoft.com |
| Integrator | - Hosted and integrated on Microsoft Azure infrastructure | Microsoft | - | Reported | azure.microsoft.com |
The read
The Met Office's replacement for its own on-premises hardware (Microsoft's release describes it as the Met Office's 14th generation of supercomputer, its first not owned and run in-house in 60 years): four quadrants, each an HPE Cray EX built on AMD EPYC 3rd-generation processors, hosted in undisclosed Azure datacentres in the south of the UK and powered entirely by renewable electricity. Microsoft's own blog states a combined 1.5 million-plus processor cores and over 60 PFlop/s of aggregate peak capacity, a vendor-stated theoretical figure rather than a measured Linpack result, so no Rmax or core count is recorded here and Rpeak is recorded as approximate. The contract was announced in April 2021; the Met Office's own blog states the final cutover from its legacy system completed on 19 May 2025 after more than a month running in parallel. No system built from Azure capacity has been found on any TOP500 list. The Met Office states its purpose as more accurate forecasts delivered further in advance, to help people 'stay safe' and 'thrive'; Microsoft's release adds that the same capacity underpins climate-change research alongside day-to-day forecasting.
Site & facility
Change history
- 2026-09-24 Added; no TOP500 submission found, sourced from Microsoft and the Met Office's own pages
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 |
|---|---|---|
| azure.microsoft.com | names system only | - |
| metoffice.gov.uk | names system only | - |
Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.