"Recently, OStatic covered Eucalyptus, an open source
infrastructure for cloud computing on clusters that duplicates the
functionality of Amazon's EC2, using the Amazon command-line tools
directly. We've also been covering several interesting projects
focused on cloud computing. Rich Wolski, who directs the Eucalyptus
project at U.C. Santa Barbara, is an expert on grid computing, and
was kind enough to share with me some of the other open source
projects he finds notable in this space.
"As Rich notes, 'the grid side of things has been producing a
maturing software base that is probably worth checking out.' In
particular, he describes Condor as 'probably the most successful
(and oldest) effort [in this area]--at the University of
Wisconsin...'"