Installation guide

QLogic OFED+ Host Software Page 4 of 14
 When running the OFED performance benchmark qperf to test the bandwidth of
Unreliable Datagram (UD) traffic, the command no longer hangs or times out
intermittently when using an InfiniBand MTU of 4096 bytes and the '-t 10' (or larger
number of seconds).
 When performing an IFS installation on SLES 11 SP1, the message similar to the
following no longer appears:
WARNING: -e needs -E or -F
 On SLES 11 or SLES 11 SP1 environments, when running qperf rc_bi_bw or
rc_rdma_read_lat tests, the system no longer has a kernel panic causing it to drop
a vmcore file and reboot. This kernel panic does not occur with OFED 1.5.3.
 Running MPI microbenchmarks over verbs does not exhibit low performance using
the osu_bw and osu_bibw tests.
4 Known Issues
The QLogic OFED+ Host software package, version 7.0.0.0.35, has the following known
issues:
Known Issue
Workaround
When a port is down and does not have a LID
assigned, clear_p1stats or clear_p2stats will
fail against the given port.
None
For SLES10 and 11, the --32bit option of
INSTALL does not work. For individual Red Hat
Package Manager (RPM) installs, SLES10 and 11
do not distinguish between 32-bit and 64-bit
RPMs.
Installed RPMs that are 32-bit must be manually
uninstalled first and then the appropriate RPM for
each package (only 64 bit if available) must be
installed.
QLogic recommends using ./INSTALL, which
automatically performs all necessary uninstalls of
old RPMs prior to installing the new 64-bit RPMs.
When reinstalling QLogic OFED+, it may try to
stop existing instances of opensm. If opensm is not
presently running, it will report:
Stopping IB Subnet Manager [FAILED].
QLogic recommends using the QLogic Fabric
Manager.
If the QLogic Fabric Manager is installed instead of
opensm, this error will not occur.
When using vFabric, the OFED saquery command
may use the wrong P-Key and timeout waiting for
responses.
QLogic recommends using the iba_saquery tool,
which is included with QLogicIB-Basic or QLogicIB-
IFS. iba_saquery will work properly when vFabric
is configured.
If LD_LIBRARY_PATH is exported inconsistently with
the version of openmpi being used, applications
may build or run incorrectly. This issue can impact
FastFabric tools that use MPI, rebuilding of mpi
apps, or rebuilding openmpi itself using the
do_build or do_openmpi_build tools.
When using openmpi, make sure PATH and
LD_LIBRARY_PATH are not exported specifying a
different path than the openmpi path that is being
used. The mpi-selector can configure a
LD_LIBRARY_PATH for subsequent logins. openmpi
does not require the LD_LIBRARY_PATH to be set.
When using opensm, after bouncing ports on a
node, the port may not return to an active state
for a period of time. As a result, commands that
issue an SA query such as OFED's saquery
command, or various FastFabric tools such as
iba_report and iba_saquery, may hang waiting
for the port to become active and the SA to
respond.
Restart opensm.
QLogic recommends using the QLogic Fabric
Manager, which has much greater resiliency and
quicker handling of port state changes.