6.3.2. Prerequisites for using Infiniband

The machines running the server and client must each have Infiniband properly installed. In particular:
  • The kernel driver and the user space driver for your Infiniband hardware must both be installed.
  • Allocate lockable memory for Infiniband.
    By default, the operating system can swap out all user memory. Infiniband requires lockable memory, which can not be swapped out. Each connection requires 8 Megabytes (8192 bytes) of lockable memory.
    To allocate lockable memory, edit /etc/security/limits.conf to set the limit, which is the maximum amount of lockable memory that a given process can allocate.
  • The Infiniband interface must be configured to allow IP over Infiniband. This is used for RDMA connection management.
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