Can Ethernet Replace Infiniband?
HPCwire, Monday, June 23rd, 2025
When it comes to AI and HPC workloads, networking is critical.
While this is well known already, the impact your networking fabric performance has on parameters like job completion time can affect your cost structure by more than 30%.
Most of the cost of large GPU clusters like those used for AI training, goes to the compute elements - the GPUs, and only 10% of the overall cost is typically designated to networking gear. The thing is, a non-optimal networking fabric can make those very expensive GPUs remain idle for a significant amount of time, critically impacting the platform economics.