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Feature Overview
Features
2-2 Preliminary IB0056101-00 G.02
S
MVAPICH and OpenMPI compiled with newer versions of each of four
different compilers (GCC, PGI, Intel and PathScale) are available.
The QLogic InfiniBand Fabric Suite (IFS) is available separately for
purchase. It includes FastFabric, the QLogic Host Subnet Manager (HSM),
and the Fabric Viewer, and the InfiniServ Host Software.The QLogic OFED
1.4 software is supported by IFS.
Support for newer compiler versions (PathScale 3.x, PGI 7.x, PGI 8.x, Intel
10.x, Intel 11.x)
Support for newer Linux distributions, including RHEL 4 U7
Performance enhancements and bug fixes
Other Changes
ipath_ether Ethernet emulation has been removed; IPoIB-CM may be
used instead.
The /etc/init.d/infinipath command to start the InfiniPath service
has been replaced by the /etc/init.d/openibd command.
The infinipath-kernel RPM no longer exists: it has been integrated
into the kernel-ib RPM.
Continued Support
Multiple high-performance native PSM Message Passing Interface (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.
Dual PCIe QLogic adapters per node.
QLogic MPI supports running exclusively on a single node without the
installation of the HCA hardware.
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, and 4KB MTU switches configured for 2KB MTU.
QLogic switches with firmware version 4.2.x or later are recommended.