Supercomputers/Systems/Alfahd
Saudi Arabia · operational · hpc
Alfahd
Also known as Alfahd HPC; KFUPM CPG HPC
Operated by KFUPM at KFUPM CPG HPC Facility (Dhahran) .
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
- 153.00 TFlop/s
- Rmax ÷ Rpeak
- -
- Cores
- 3,944
- 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 | - Huawei servers and storage | Huawei | - | Reported | cpg.kfupm.edu.sa |
| Integrator | - Dell Xeon Phi nodes | Dell Technologies | - | Reported | cpg.kfupm.edu.sa |
| CPU | - Intel Xeon Broadwell-EP 14C 2.4GHz, dual-socket on 118 compute servers | Intel | 236 reported | Reported | cpg.kfupm.edu.sa |
| CPU | - Intel Xeon Phi Knights Landing 64-core 1.3GHz on 10 nodes | Intel | 10 reported | Reported | cpg.kfupm.edu.sa |
| Interconnect | Omni-Path Architecture Interconnect Fat tree · 100 Gb/s per port · About 1 microsecond 100 Gbps Intel Omni-Path fabric, 2:1 blocking | Cornelis Networks | - | Reported | cpg.kfupm.edu.sa |
| Storage | - 320 TB usable Lustre storage | Huawei | - | Reported | cpg.kfupm.edu.sa |
The read
The HPC cluster of the College of Petroleum Engineering and Geosciences (CPG) at KFUPM in Dhahran, for geoscience and engineering workloads. The CPG page lists 3,944 cores: 118 dual-socket compute servers of 14-core Intel Xeon Broadwell-EP processors at 2.4 GHz with 128 GB (3,304 cores) and ten 64-core Xeon Phi Knights Landing nodes with 96 GB (640 cores), with Xeon E5-2680 v4 master and management nodes, 100 Gbps Intel Omni-Path in a 2:1 blocking fabric, 320 TB of usable Lustre storage and 153 TFlop/s of capacity, from Huawei (servers and storage) and Dell (Xeon Phi nodes). The page gives no installation year, so none is recorded. Only one page was fetched for this system, so the tier is reported.
Timeline
No dated events recorded.
Site & facility
Change history
- 2026-10-04 Alfahd added, the 3,944-core Xeon Broadwell and Xeon Phi Omni-Path cluster of KFUPM's College of Petroleum Engineering and Geosciences in Dhahran (153 TFlop/s)
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 |
|---|---|---|
| cpg.kfupm.edu.sa | names system only | - |
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.