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Jeff Squyres 57a3dce9ba LANL noticed that calling MPI_ABORT invokes opal_output(0, ...)
unconditionally, which can result in a flood of messages to the user
if all MPI processes invoke abort.  Additionally, some users were
confused because they saw the MPI_ABORT opal_output() messages from
''some'' MPI processes, but not ''all'' of them (despite the fact that
every MPI process supposedly invoked MPI_ABORT).  The reason is that
calling MPI_ABORT triggers ORTE to kill all MPI processes, so it's a
race condition as to whether a) all MPI processes actually invoke
MPI_ABORT, and/or b) whether every process is able to opal_output()
before they are killed.

This commit does two simple things:
 * Now use orte_show_help() for the MPI_ABORT message, so they are
   aggregated. 
 * Add a note in the message that calling MPI_ABORT kills all
   processes, so you might not see all output, yadda yadda yadda.

This commit was SVN r19735.
2008-10-14 19:23:03 +00:00
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