HPC6 node architecture
HPC6 is operated by Eni · Green Data Center in Italy. This profile covers the documented compute inventory. Specifications are listed below; anything the operator has not published is itemised in the documented-fields list.
Published benchmark (TOP500 · June 2026)
- HPL rank
- #8
- HPL Rmax
- 477.9 PFlop/s
- Theoretical peak Rpeak
- 606.97 PFlop/s
- Ranked core count
- 3,143,520
- Measured power
- 8461 kW
- Energy efficiency
- 56.48 GFlop/s per watt
Cluster · MI250X compute
- Operator / site
- Eni · Green Data Center
- Country
- Italy
- Profile scope
- Documented compute inventory
- Data checked
- 13 September 2026
- Manufacturer
- HPE
- Ranked core count
- 3143520
- Theoretical peak (PFlop/s)
- 606.97
- Measured power (kW)
- 8461
- Energy efficiency (GFlop/s per watt)
- 56.482685261789385
- Operating system
- RHEL 8.9
- Network topology
- Dragonfly
MI250X compute
- System / node model
- HPE Cray EX4000
- Compute nodes of this type
- 3472
- CPU model
- AMD EPYC · 64 cores
- CPU sockets per node
- 1
- Cores per socket
- 64
- Physical CPU cores
- 64
- Accelerator model
- AMD Instinct MI250X
- Physical accelerators per node
- 4
- Form factor
- 3,472 nodes in 28 racks
Scope and uncertainty
Installed configuration. Detailed memory and on-node wiring are not published in this profile.
Documented fields: 16 / 29
Every field this catalog checks. Fields listed above have a value; the remainder are shown here. A field marked absent is not publicly available in the sources we could verify, which does not mean the hardware is missing. Fields that cannot apply, such as benchmark results for an unranked system, are excluded from the total.
Cluster — 7 / 7
- ✓Manufacturer
- ✓Ranked core count
- ✓Theoretical peak (PFlop/s)
- ✓Measured power (kW)
- ✓Energy efficiency (GFlop/s per watt)
- ✓Operating system
- ✓Network topology
MI250X compute — 9 / 22
- ✓System / node model
- ✓Compute nodes of this type
- ✓CPU model
- ✓CPU sockets per node
- ✓Cores per socket
- ✓Physical CPU cores
- ✕CPU note
- ✓Accelerator model
- ✓Physical accelerators per node
- ✕Host / unified memory
- ✕Accelerator memory
- ✕Accelerator ↔ accelerator link
- ✕On-node fabric
- ✕CPU ↔ accelerator link
- ✕Network interfaces per node
- ✕Interface model
- ✕Interface speed
- ✕Interface-to-accelerator topology
- –Aggregate scale-out per node
- ✕GPUDirect RDMA
- ✕Management / storage networking
- ✕Local storage
- –NVMe data disks
- –Max remote data disks
- –Uncached disk IOPS
- –Uncached disk throughput (MBps)
- ✓Form factor
Sources
Browse all cluster architecture pages →
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