[Beowulf] How to Monitor Cluster

[A Lenzo]

Hello Cluster Colleagues,

I would like to begin monitoring my cluster in order to see what the usage
is at different times of day.  A simple method would work - I am looking for
advice on this.  The mosmon utility is enticing since it shows the usage on
all nodes at once, but of course, I can't pipe the output to a text file.
If I can find the right tool for the job, I am sure I can keep it running
every hour or so with Cron.  Ideally, I'd love to measure memory usage and
also CPU usage.

Suggestions?

Thanks!
Tony
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