Filter
Top Products
5 – Software Installation
InfiniPath and OpenFabrics Driver Overview
IB0056101-00 G 5-11
A
InfiniPath and OpenFabrics Driver Overview
The InfiniPath ib_ipath module provides low level QLogic hardware support, and
is the base driver for both the InfiniPath and OpenFabrics software components.
The
ib_ipath module does hardware initialization, handles InfiniPath-specific
memory management, and provides services to other InfiniPath and OpenFabrics
modules.
It provides the hardware and hardware management functions for MPI/PSM
programs, the
ipath_ether Ethernet emulation, and general OpenFabrics
protocols such as IPoIB and SDP. The module also contains a subnet
management agent.
Figure 5-1 shows the relationship between the InfiniPath and OpenFabrics
software. Not all components are shown.
Figure 5-1. Relationship Between InfiniPath and OpenFabrics Software
If you want to enable Transmission Control Protocol-Internet Protocol (TCP/IP)
networking for running Ethernet traffic over the InfiniPath link, you can configure
the optional
ipath_ether network interface files.
Optional configurable OpenFabrics components are:
IPoIB network interface
VNIC
OpenSM
SRP (OFED and QLogic modules)
MPI over uDAPL (can be used by Intel MPI or HP-MPI)
Configuring the InfiniPath Drivers
This section provides information on InfiniPath driver configuration.
NOTE:
It is not necessary to configure the
ipath_ether driver to run MPI jobs.
InfiniPath
components
TCP/IP
ipath_ether
OpenS
IPoIB
OpenFabrics
components
ib_ipath