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
time.
-- 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
___
devel-core mailing list
devel-c...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/devel-core
