COMPUTE ATLAS Supercomputer supply-chain graph
1153 systems 482 sites Sourced data

Supercomputers/Systems/wICE

Belgium · operational · mixed

wICE

Also known as KU Leuven wICE

Operated by KU Leuven .

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
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Rmax ÷ Rpeak
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Cores
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Power
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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 -
4 GPU nodes with 4x NVIDIA A100 SXM4 80 GiB (quantity derived as 4 x 4)
NVIDIA 16
reported
Reported docs.vscentrum.be
Accelerator NVIDIA H100 SXM5
Accelerators
CUDA (Hopper GH100) · 16,896C · 1.98 GHz · TSMC 4N · 700 W
5 GPU nodes with 4x NVIDIA H100 SXM5 80 GiB (quantity derived as 5 x 4)
NVIDIA 20
reported
Reported docs.vscentrum.be
CPU Intel Xeon Platinum 8468
CPUs
x86-64 · 48C · 2.1 GHz · Intel 7 · 350 W
68 Sapphire Rapids thin nodes with Intel Xeon Platinum 8468 48C (quantity is nodes)
Intel 68
reported
Reported docs.vscentrum.be
CPU -
172 Ice Lake thin nodes with Intel Xeon Platinum 8360Y 36C (quantity is nodes)
Intel 172
reported
Reported docs.vscentrum.be
Interconnect NVIDIA InfiniBand HDR
Interconnect
Fat tree or dragonfly+ · 200 Gb/s per port · About 0.6 microseconds
InfiniBand HDR-100 for most nodes (H100 and huge-memory nodes are Ethernet only)
NVIDIA - Reported docs.vscentrum.be

The read

The KU Leuven/UHasselt Tier-2 cluster of the Flemish Supercomputer Centre (VSC), in production since February 2023 and extended in early 2024. The VSC hardware page lists 240 thin nodes (172 Ice Lake with Xeon Platinum 8360Y and 68 Sapphire Rapids with Xeon Platinum 8468), 5 big-memory nodes with 2 TiB, 1 huge-memory node with 8 TiB, 9 GPU nodes (4 with four NVLink-connected A100 80 GiB SXM4 GPUs and 5 with four NVLink-connected H100 80 GiB SXM5 GPUs on AMD EPYC 9334 hosts), HDR-100 InfiniBand for most nodes and a Lustre file system; the H100 and huge-memory nodes have Ethernet only, and the Sapphire Rapids and H100 nodes are direct liquid cooled. The only source used is KU Leuven's own VSC documentation, so the tier is reported. No HPL figure has been submitted and no total core count is stated, so those fields are blank.

Timeline

Change history

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 sourceResultFound on the page
docs.vscentrum.benames system, part and countIntel Xeon Platinum 8468, NVIDIA H100 SXM5, NVIDIA InfiniBand HDR · counts: 68, 20

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

Further reading