Croatia · operational · hpc

Supek

Operated by SRCE at SRCE Borongaj Data Centre .

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: 1.25 PFlop/s
Rmax ÷ Rpeak: -
Cores: 8,384
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	- Single HPE Cray EX2500 cabinet, fully integrated supercomputer	Hewlett Packard Enterprise HPENYSE	-	Reported	srce.unizg.hr
Accelerator	NVIDIA A100 SXM4 40GB Accelerators CUDA (Ampere GA100) · 6,912C · 1.41 GHz · 7 nm · 400 W 4 x NVIDIA A100 with 40 GB memory per GPU node	NVIDIA NVDANASDAQ	-	Reported	srce.unizg.hr
CPU	AMD EPYC 7763 (Milan) CPUs x86-64 · 64C · 2.45 GHz · 7 nm · 280 W 2 x AMD Epyc 7763 2.45GHz per node	AMD AMDNASDAQ	-	Reported	srce.unizg.hr
Interconnect	- Slingshot interconnection between nodes (generation not stated)	Hewlett Packard Enterprise HPENYSE	-	Reported	srce.unizg.hr
Storage	- HPE ClusterStor, 580 TB usable capacity, 238 GB/s write and 450 GB/s read	Hewlett Packard Enterprise HPENYSE	-	Reported	srce.unizg.hr

The read

Croatia's first petascale supercomputer, operated by SRCE (the University of Zagreb's University Computing Centre) at the newly built data centre on University Campus Borongaj in Zagreb, commissioned in 2023 as part of the HR-ZOO (Croatian Scientific and Educational Cloud) project. SRCE's own page describes a single HPE Cray EX2500 cabinet with 2x AMD EPYC 7763 CPUs and 4x NVIDIA A100 40GB GPUs per GPU node (8,384 processor cores and 81 GPUs total), 32 TB of working memory, an HPE ClusterStor storage tier (580 TB usable, 238 GB/s write and 450 GB/s read) and a Slingshot interconnect between nodes, for a stated 1.25 PFLOPS peak. MEP d.o.o., the systems integrator that designed Supek's cooling and power infrastructure, independently corroborates the operator, the Borongaj campus location and the near-100kW single-rack cooling design, but does not restate the performance figure or exact hardware SKUs, so the row stays reported. No TOP500 submission was found for this system, so ranked is 0 and rmax_pflops is left blank with rpeak_pflops recorded as the operator-stated peak figure.

Timeline

2023 First operational source

Site & facility

SRCE Borongaj Data Centre

Location: Zagreb, Croatia
Cooling: Direct liquid cooling
Commissioned: 2023

srce.unizg.hr mep.hr

Change history

2026-09-24 Supek added (Croatia)

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
mep.hr	names system only	-
srce.unizg.hr	names system and part	AMD EPYC 7763 (Milan), NVIDIA A100 SXM4 40GB

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