User guide

G–Commands and Files
Summary and Descriptions of Commands
G-26 IB0054606-02 A
ipath_checkout performs the following seven tests on the cluster:
1. Executes the ping command to all nodes to verify that they all are
reachable from the front end.
2. Executes the ssh command to each node to verify correct configuration of
ssh.
3. Gathers and analyzes system configuration from the nodes.
4. Gathers and analyzes RPMs installed on the nodes.
5. Verifies InfiniPath hardware and software status and configuration, including
tests for link speed, PIO bandwidth (incorrect MTRR settings), and MTU
size.
6. Verifies the ability to mpirun
jobs on the nodes.
7. Runs a bandwidth and latency test on every pair of nodes and analyzes the
results.
The options available with ipath_checkout are shown in Table G-2.
NOTE
 The hostnames in the nodefile are Ethernet hostnames, not IPv4
addresses.
 To create a nodefile, use the ibhosts program. It will generate a list
of available nodes that are already connected to the switch.
Table G-2. ipath_checkout Options
Command Meaning
-h, --help These options display help messages describing how a com-
mand is used.
-v, --verbose
-vv, --vverbose
-vvv, --vvverbose
These options specify three successively higher levels of
detail in reporting test results. There are four levels of detail
in all, including the case where none of these options are
given.
-c, --continue When this option is not specified, the test terminates when
any test fails. When specified, the tests continue after a fail-
ure, with failing nodes excluded from subsequent tests.