What is Omni-Path?

Intel Omni-Path Architecture (OPA) was a high-performance computing (HPC) interconnect technology. It provided high bandwidth, low latency, and high message rate, designed to scale to tens of thousands of nodes. OPA was commonly used in supercomputers and large clusters to connect compute nodes and storage, enabling fast data transfer for demanding applications like scientific simulations, data analytics, and machine learning. While Intel has discontinued further development of OPA, it had a significant impact on the HPC interconnect landscape.