Debian 7 Infiniband

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Infiniband configuration in Debian 7

Install the required software

apt-get -y install infiniband-diags ibutils libmthca ibverbs-utils libibumad libibmad libibverbs1 libmthca1 libmthca1-dbg libmthca-dev libopensm2 opensm


Load the kernel Modules

Load the proper linux modules. Edit the file /etc/modules and add the following lines

File: /etc/modules

        #tarjeta Mellanox MT26438
        mlx4_ib

        #IP over IB
        ib_ipoib

        # Protocol modules
        # Common modules
        rdma_ucm
        ib_umad
        ib_uverbs

Then, execute the following commands

modprobe mlx4_ib modprobe ib_ipoib modprobe rdma_ucm modprobe ib_umad modprobe ib_uverbs


Subnetting Daemon Configuration

find the available ports in the card.

ibstat -p


The output are the identifiers of the ports. Example:

       0x78e7d10300244e95

Then, edit the file /etc/default/opensm

And change the following line

       PORTS=ALL

Like this

       PORTS="0x78e7d10300244e95"

Start The Subnetting Service

Start the opensm service

/etc/init.d/opensm start


Configure the Infiniband Interface

Edit the file /etc/network/interfaces and add the following lines


File: /etc/network/interfaces

        auto ib0
        iface ib0 inet static
        address 192.168.38.71
        netmask 255.255.255.0
        broadcast 192.168.38.255

Then, start the interface

ifup ib0


Test the interface using the following commands

ibstat ibhosts