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From: Josh Hursey (jjhursey_at_[hidden])
Date: 2007-05-22 12:49:26

You can also use the orte-ps tool to give you a dump of the GPR. On
the machine with 'mpirun' running on it:
  shell$ orte-ps --dump
This will call orte_gpr.dump_all(0) and push the output to the terminal.

It gives a quick and dirty access to this information at any point in

-- Josh

On May 22, 2007, at 12:11 PM, Ralph H Castain wrote:

> This came up in today's telecon and I promised to send this to
> George -
> however, it occurred to me that others may also want to know.
> If you want to dump info for debugging purposes, and if you can get
> into
> orterun/mpirun (e.g., via gdb), you can dump info on anything with the
> following (NOTE: Gdb will frequently truncate the output from these
> commands
> - that is why there are so many and they are somewhat detailed. I
> tend to
> bury the more verbose of these in the code itself when debugging so
> I can be
> sure to see the entire output):
> orte_gpr.dump_all(0): this will dump *everything* in the registry
> to opal
> output stream 0 (or whatever one you care to designate), including
> all the
> info on trigger status (e.g., whether it has fired or not).
> orte_gpr.dump_segment(segment-name): this will provide the info
> stored on
> any segment of the registry. Standard segments worth looking at
> include:
> 1. "orte-job-1": shows info on all procs in your initial applications,
> including their reported state
> 2. "orte-node": what nodes are known to the system, and anything
> about their
> status
> 3. "orte-job-0": info on all daemons in the system
> orte_gpr.dump_triggers(0): status and info on all triggers. The "0"
> argument
> indicates that you want them all dumped to the screen. Since gdb
> doesn't
> like getting too much info, you can use this argument to specify
> how many
> you want to see starting from the end of the list (i.e., "5" says
> give me
> the five last triggers that were defined).
> orte_gpr.dump_subscriptions(0): same as above, only for subscriptions
> There are more of these that are defined, but they are fairly
> obvious - you
> can see them all listed in orte/mca/gpr/gpr.h.
> Also, don't forget that you can dump *any* data type object using the
> orte_dss.dump command - see orte/dss/dss.h for a description.
> Hope that helps!
> Ralph
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