add script to parse load data

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
add script to plot load

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
stream: display node name

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>