Product specifications

QLogic OFED+ Host Software Page 16 of 20
CLI command depcheck option --without has been added to INSTALL to suppress
checking of the OS dependencies. This option can allow an install to be forced even if
the OS dependencies are missing. This command should be used with care, because
using a forced install will typically result in operational problems due to missing OS
libraries or tools.
MPI Source component checks have been installed for all of the dependencies, which
will be needed when building any of the included MPI sources (mvapich, openmpi,
and mvapich2) with GNU compilers. Dependency checks for building MPI itself are
done only once during the installation. Any subsequent removal of OS RPMs after the
install could yield errors when rebuilding the MPIs.
Dependency checking has been extended to include additional dependencies when
rebuilding RPMs.
5.7 Product Constraints
All installation and uninstallation of QLogic OFED+ Host software package
components must be performed using the INSTALL or iba_config commands. If
software is manually installed or uninstalled using other methods (RPM, other scripts,
and so on), the installation on the system could become inconsistent and cause
unreliable operation, in which case subsequent runs of INSTALL or iba_config may
make incorrect conclusions about the configuration of the system and consequently
make incorrect recommendations. If the system becomes inconsistently configured,
QLogic recommends running the ./INSTALL TUI and selecting ReInstall on all
components. Once the re-installation has started, carefully review all prompts and
choices.
On SuSE systems, NETWORKMANAGER must be set to "no" in
/etc/sysconfig/network/config. This is the default setting.
The mpirun command in this release is not compatible with nodes running InfiniPath
releases prior to version 2.2.1.
OFED SDP has not been qualified for this release. IPoIB is recommended for data
transfers.
5.8 Product Limitations
When upgrading from a previous QLogic VNIC driver for QLogic InfiniPath 2.2.1 or
earlier, the config file will not be automatically upgraded. Instead, the user must
manually copy the /etc/InfiniBand/qlogic_vnic.cfg file to
/etc/InfiniBand/qlgc_vnic.cfg. However, when upgrading from older QuickSilver
releases, the /etc/sysconfig/iba/ics_vnic.cfg file will be automatically copied to
/etc/InfiniBand/qlgc_vnic.cfg.
QLogic products will auto-negotiate with devices that utilize IBTA-compliant auto-
negotiation. When attaching QLogic products to a third-party switch, the bit error
rate is optimized if the third-party switch utilizes attenuation-based tuning.