Designing HPC Cluster Networking: What Speeds You Actually Need

Designing HPC Cluster Networking: What Speeds You Actually Need When building or scaling an HPC cluster, CPUs and GPUs usually get most of the attention. But in practice, the network design is just as critical. A poorly designed network can bottleneck even the most powerful compute nodes, while a well designed one can significantly improve performance without changing hardware. This guide breaks down typical networking components in an HPC cluster and what speeds are generally recommended betwee