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.