Three Cray CS-Storm cabinets ensure the provision of MeteoSwiss’s numerical weather service. This infrastructure is shared by two independent systems named Arolla and Tsa. Their names have been inspired by Swiss mountains in the Pennine Alps: Pigne d'Arolla (3'796 m) and Aiguille de la Tsa (3'668 m).
The two systems, providing production and R&D, plus failover services, are composed of the following infrastructure:
- Three water cooled racks (48U)
- 18 x GPU-compute nodes, each with:
- 8 x NVIDIA® V100 GPUs (with 32 GB HBM memory each)
- 2 x Intel® Xeon® Skylake 6134 CPUs (8-core, 3.2 GHz)
- 384 GB DDR4 memory
- 2 x 10 GbE interfaces
- 20 x pre/post-processing compute nodes, each with:
- 2 x Intel® Xeon® Skylake 6148 CPUs (20-core, 2.4 GHz)
- 384 GB DDR4 memory
- 6 x login nodes
- 2 x Cray® ClusterStor™ Lustre® parallel filesystems
