[StarCluster] parallel ssh support?

[Ryan G]

Hi all - Whenever I launch a cluster with a large # of nodes, I have to
wait quite a bit of time because each node has to be configured
separately.  The commands in my custom plugin are the same regardless of
machine.  I was wondering if there was any support in StarCluster to use
parallel-ssh to run the plugin on all the nodes at once?  This could save a
lot of start-up time....

Ryan
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