QLogic OFED+ Host Software User Guide, Rev. B
QLogic OFED+ Host Software User Guide, Rev. B
QLogic OFED+ Host Software User Guide, Rev. B
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I–Useful Programs and Files<br />
Summary and Descriptions of Useful Programs<br />
ipathstats<br />
The ipath_pkt_test program runs in either ping-pong mode (send a packet,<br />
wait for a reply, repeat) or in stream mode (send packets as quickly as possible,<br />
receive responses as they come back).<br />
Upon completion, the sending side prints statistics on the packet bandwidth,<br />
showing both the payload bandwidth and the total bandwidth (including InfiniBand<br />
and InfiniPath headers). See the man page for more information.<br />
The ipathstats program is useful for diagnosing InfiniPath problems,<br />
particularly those that are performance related. It is installed from the<br />
infinipath RPM. It displays both driver statistics and hardware counters,<br />
including both performance and "error" (including status) counters.<br />
Running ipathstats -c 10, for example, displays the number of packets and<br />
32-bit words of data being transferred on a node in each 10-second interval. This<br />
output may show differences in traffic patterns on different nodes, or at different<br />
stages of execution. See the man page for more information.<br />
lsmod<br />
When you need to find which InfiniPath and OpenFabrics modules are running,<br />
type the following command:<br />
# lsmod | egrep ’ipath_|ib_|rdma_|findex’<br />
modprobe<br />
Use this program to load/unload the drivers. You can check to see if the driver has<br />
loaded by using this command:<br />
# modprobe -v ib_qib<br />
The -v option typically only prints messages if there are problems.<br />
The configuration file that modprobe uses is /etc/modprobe.conf<br />
(/etc/modprobe.conf.local on SLES). In this file, various options and<br />
naming aliases can be set.<br />
mpirun<br />
mpirun determines whether the program is being run against a <strong>QLogic</strong> or<br />
non-<strong>QLogic</strong> driver. It is installed from the mpi-frontend RPM. Sample<br />
commands and results are shown in the following paragraphs.<br />
<strong>QLogic</strong>-built:<br />
$ mpirun -np 2 -m /tmp/id1 -d0x101 mpi_latency 1 0<br />
asus-01:0.ipath_setaffinity: Set CPU affinity to 1, port 0:2:0<br />
(1 active chips)<br />
asus-01:0.ipath_userinit: Driver is <strong>QLogic</strong>-built<br />
D000046-005 B I-15
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