Some time ago I wrote an article about Cluster SSH.

Now that I’m using a Mac at work too and am working with clusters again, I’ve googled for a MacOS X-based program similar to cssh. And of course, there’s a guy who has done it! csshX is a different implementation of the same idea, this time written on perl instead of TCL/TK and using OS X’s Terminal.app.

Works like a charm.