Q-Logic OFED, IB0056101-00 G.02 manual Other Changes, Support

Feature Overview Features

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„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„The /etc/init.d/infinipath command to start the InfiniPath service has been replaced by the /etc/init.d/openibd command.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-kernelRPM no longer exists: it has been integrated into the kernel-ibRPM.

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.

2-2 Preliminary IB0056101-00 G.02