InfiniBand: To HDR and Beyond

Ariel Almog from Mellanox gave this talk at the OpenFabrics Workshop in Austin. "Recently, deployment of 50 Gbps per lane (HDR) speed started and 100 Gbps per lane (EDR) which is a future technology is around the corner. The high bandwidth might cause the NIC PCIe interface to become a bottle neck as PCIe gen3 can handle up to single 100 Gbps interface over 16 lanes and PCIe gen4 can handle up to single 200 Gbps interface over 16 lanes. In addition, since the host might have dual CPU sockets, Socket direct technology, provides direct PCIe access to dual CPU sockets, eliminates the need for network traffic to go over the inter-process bus and allows better utilization of PCIe, thus optimizing overall system performance."

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