I was looking at the graphs posted at
https://svn.open-mpi.org/trac/ompi/wiki/ORTEScalabilityTesting,
and noted that MTT could gather this data if it could just
graph on the "duration" column. Would this be useful? E.g.,
http://www.open-mpi.org/mtt/index.php?do_redir=582
Note: the duration timings currently round to the second,
but the "duration" column uses an interval type that has
microsecond precision, if we needed it.
-Ethan
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