"Getting started with what appears to be a very powerful, very
complex idea (in computing, at least) is often a daunting
proposition, and cluster computing is no exception. There is so
much to learn! So many things can go wrong! It might require new,
specialized, expensive hardware and software! Looking over some of
the articles on this website can easily reinforce this view, as
some of them describe very sophsticated tools and concepts.
"Anybody who has ever tackled a major new computing project is
aware of how costs can spiral, energy and time fritter away, and
benefits seem unreachably distant in the middle of the mess..."