Noctua 1 - Technical description
Noctua 1 was installed in July 2018 and has been out of service since October, 27th 2025.
| System | Cray CS500 |
|---|---|
| Processor Cores | 10,880 |
| Total Main Memory | 51 TiB |
| Floating-Point Performance | CPU: 841 TFLOPS DP Peak (535 TFLOPS Linpack) |
| Cabinets | 5 racks - active backdoor cooling, 1 rack - air cooling |
| Compute Nodes | 256 nodes, each with • 2x Intel Xeon Gold "Skylake" 6148, 2.4 GHz • 40 cores • 192 GiB main memory |
| GPU Nodes | 18 nodes, each with • 2x Intel Xeon Gold "Skylake" 6148(F), 2.4 GHz • 40 cores • 192 GiB main memory • 2x NVIDIA A40, each 48 GB GDDR6, 10,752 CUDA cores, 336 Tensor cores |
| Communication Network CPUs | Intel Omni Path 100 Gbps, 1.4:1 blocking factor |
| Storage System | Cray ClusterStor L300N with NXD flash accelerator Lustre File System with 720 TB capacity |
