HP-MPI User's Guide (11th Edition)

Debugging and troubleshooting
Troubleshooting HP-MPI applications
Chapter 6 211
The following option is available for prepending:
p Enables prepending. The global rank of the originating
process is prepended to stdout and stderr output.
Although this mode can be combined with any
buffering mode, prepending makes the most sense with
the modes b and bline.
The following option is available for combining repeated output:
r [#>1] Combines repeated identical output from the same
process by prepending a multiplier to the beginning of
the output. At most, # maximum repeated outputs are
accumulated without display. This option is used only
with bline. The default value of # is infinity.
Completing
In HP-MPI, MPI_Finalize is a barrier-like collective routine that waits
until all application processes have called it before returning. If your
application exits without calling MPI_Finalize, pending requests may
not complete.
When running an application, mpirun waits until all processes have
exited. If an application detects an MPI error that leads to program
termination, it calls MPI_Abort instead.
You may want to code your error conditions using MPI_Abort, which
cleans up the application.
Each HP-MPI application is identified by a job ID, unique on the server
where mpirun is invoked. If you use the -j option, mpirun prints the job
ID of the application that it runs. Then, you can invoke mpijob with the
job ID to display the status of your application.
If your application hangs or terminates abnormally, you can use
mpiclean to kill any lingering processes and shared-memory segments.
mpiclean uses the job ID from mpirun -j to specify the application to
terminate.