Q-Logic IB0056101-00 G.02, OFED manual MPI over uDAPL, This information is collected from

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Configuring Drivers and Services OpenFabrics Drivers and Services Configuration and Startup

If you want to restart the QLogic VNIC interfaces, run the following command:

#/etc/init.d/qlgc_vnic restart

You can get information about the QLogic VNIC interfaces by using the following script (as root):

#ib_qlgc_vnic_info

This information is collected from the

/sys/class/infiniband_qlgc_vnic/interfaces/ directory, under which there is a separate directory corresponding to each VNIC interface.

VNIC interfaces can be deleted by writing the name of the interface to the /sys/class/infiniband_qlgc_vnic/interfaces/delete_vnic file. For example, to delete interface veth0, run the following command (as root):

#echo -n veth0 >

/sys/class/infiniband qlgc vnic/interfaces/delete_vnic

More information for configuration, starting and stopping the interface, and basic troubleshooting is found in the QLogic OFED+ User Guide.

MPI over uDAPL

Intel MPI can be run over uDAPL, which uses IB Verbs. uDAPL is the user mode

version of the Direct Access Provider Library (DAPL), and is provided as a part of the OFED packages. You will also have to have IPoIB configured.

Setup for Intel MPI is described below.

1.Make sure that DAPL 1.2 (not version 2.0) is installed on every node. In this release they are called compat-dapl. (Both versions are supplied with the OpenFabrics RPMs.) They can be installed either with the Installer with the QLogicIB-Basic package or with rpm with the QLogic OFED 1.4 RPM set.

They look something like this:

$ rpm -qa grep compat-dapl compat-dapl-1.2.12-1.x86 64.rpm compat-dapl-debuginfo-1.2.12-1.x86 64.rpm compat-dapl-devel-1.2.12-1.x86 64.rpm compat-dapl-devel-static-1.2.12-1.x86_64.rpmcompat-dapl-utils-1.2.12-1.x86_64.rpm

IB0056101-00 G.02 Preliminary 6-13