Intel Omnipath is 100G fabric a less expensive alternative for Mellanox 100G.. we recently bought 10 Racks of servers with 100G Omnipath .
Until recently there is NO driver for Ubuntu , but i love centos so i kicked that in ..
Intel OPA is the latest generation of Intel’s high-performance fabric technology. It adds new capabilities to enhance high-performance computing performance, scalability, and quality of service. The Intel OPA components include Intel OP HFI, which provides fabric connectivity, switches that connect a scalable number of endpoints, copper, and optical cables, and a Fabric Manager (FM) that identifies all nodes, provides centralized provisioning, and monitors fabric resources. Intel OP HFI is the Intel OPA interface card which provides host-to-switch connectivity. Intel OP HFI can also connect directly to another HFI (back-to-back connectivity).