Just a quick note about how to config Infiniband
###install
yum -y groupinstall "Infiniband Support"
yum -y install infiniband-diags perftest gperf
###Uninstall
yum -y groupremove "Infiniband Support"
###Starting the RDMA services
systemctl start rdma
systemctl enable rdma
###config ib0
vi /etc/sysconfig/network-scripts/ifcfg-ib0
DEVICE=ib0
TYPE=infiniband
BOOTPROTO=static
IPADDR=192.168.4.62
NETMASK=255.255.255.0
NETWORK=192.168.4.0
BROADCAST=192.168.4.255
ONBOOT=yes
NM_CONTROLLED=no
systemctl restart network