On 17 May 2004, at 7:07 pm, Karl Podesta wrote: > SETI@home is a distributed computing project - not a Grid project. > It is essentially a single program, special-purpose, and many people > choose to run it on their computers. A Grid is a network, or an > infrastructure (rather than a program), so it's a different sort of > concept. *sigh* I knew someone would pick me up on that. I think whether it counts as a grid depends on your definition, and there are dozens of subtly different definitions of grid that people define. If you consider a compute grid to be a collection of machines, dynamically changing, under different political controls, being made available for the use of some application, then Seti@home certainly counts. As you say, it all depends on your definition. Tim