QLogic 7104-1M-CABLE User Manual

2–Feature Overview
Features

2-2

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The QLogic InfiniBand Fabric Suite (IFS) is available separately for 
purchase. It includes FastFabric, the QLogic Fabric Manager, Fabric Viewer, 
and the InfiniServ Host Software. The QLogic OFED 1.4 software is 
supported by IFS.

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Support for new compiler versions (PathScale 3.x, PGI 7.x, PGI 8.x, 
Intel 10.x, Intel 11.x) 

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Support for new Linux distributions, including RHEL 4 U7

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Performance enhancements and bug fixes

The following changes have been made to the software since the last release:

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ipath_ether Ethernet emulation has been removed; IPoIB-CM can be 

used instead.

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The /etc/init.d/infinipath command to start the InfiniPath service 

has been replaced by the /etc/init.d/openibd command.

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The infinipath-kernel RPM no longer exists; it has been integrated 

into the kernel-ib RPM. 

The following features are still supported in this release:

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Multiple high-performance native PSM MPI implementations. (PSM is 
QLogic’s accelerated library for high performance MPIs). In addition to 
QLogic MPI, the currently supported MPI implementations are HP-MPI, 
Open MPI, MVAPICH, and Scali (Platform). Open MPI provides MPI-2 
functionality, including one-sided operations and dynamic processes. These 
all offer the same high performance as QLogic MPI.

QLogic MPI can be run exclusively on a single node without the installation 
of the host channel adapter hardware.

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Dual PCIe QLogic adapters per node. 

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4K Maximum Transfer Unit (MTU) is supported and is on by default. To take 
advantage of 4KB MTU, use a switch that supports 4KB MTU. QLogic also 
supports 2KB switches, as well as 4KB MTU switches configured for 2KB 
MTU. QLogic switches with firmware version 4.2.x or later are 
recommended.