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What is the easiest way to run terminal commands on each and every node? I can qsub a command as many times as I have hosts, but (perhaps if nodes are busy) nodeX could run the command multiple times, and nodeY not at all.
Our local cluster has something that works like this:
$ rocks run host compute "COMMAND"
That runs COMMAND on every "compute" host.
I'm sort of surprised this functionality isn't totally standard (or is it?) on all clusters. I have gotten tmux going, but it seems both over-complicated, and a bit fragile. Plus, will it scale to a 100 node cluster? Any tips?
Received on Tue Jun 03 2014 - 18:56:44 EDT