Supercomputers/Systems/THE CRUST 2.5
Thailand · operational · hpc
THE CRUST 2.5
Operated by PTTEP .
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
- 13.85 PFlop/s
- Rpeak
- 21.68 PFlop/s
- Rmax ÷ Rpeak
- 63.9%
- Cores
- 47,360
- 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 XD665 | Hewlett Packard Enterprise | - | Reported | top500.org |
| Accelerator | NVIDIA H100 SXM5 94GB Accelerators CUDA (Hopper GH100) · 16,896C · 1.98 GHz · TSMC 4N · 700 W NVIDIA H100 SXM5 94GB | NVIDIA | - | Reported | top500.org |
| CPU | AMD EPYC 9004 (Genoa) CPUs x86-64 · 96C · 2.4 GHz · TSMC N5 · 360 W AMD EPYC 9354 32C 3.25GHz | AMD | - | Reported | top500.org |
| Interconnect | NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds Infiniband NDR400 | NVIDIA | - | Reported | top500.org |
| Operating system | Red Hat Enterprise Linux Operating systems Linux distribution · Open source, commercial support subscription RHEL 8.9 | Red Hat | - | Reported | top500.org |
The read
PTT Exploration and Production's HPE Cray XD665 cluster of AMD EPYC 9354 (32-core, 3.25 GHz) CPUs with NVIDIA H100 SXM5 94GB GPUs on InfiniBand NDR400 running RHEL 8.9, 47,360 cores at 13.85 PFlop/s Rmax and 21.68 PFlop/s Rpeak. It debuted at rank 92 on the November 2024 list and stood at rank 146 on June 2026. TOP500 gives only the company (headquartered in Bangkok), not the data-centre location, so no site is recorded. The TOP500 pages carry no stated workload; as an upstream oil and gas operator the use is presumably subsurface imaging, but that is an inference.
Timeline
Public list appearances
Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.
Change history
- 2026-10-02 Added THE CRUST 2.5, PTTEP's H100 cluster, 92nd on the November 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 | AMD EPYC 9004 (Genoa), NVIDIA H100 SXM5 94GB, NVIDIA InfiniBand NDR (Quantum-2) |
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
Latency-optimised versus throughput-optimised processors, NUMA, and the end of the host-to-device copy.
The interconnect
Topologies, why latency and tail behaviour matter more than bandwidth, and how the fabric market consolidated.