On June 14, at Sandia National Laboratories, the 350 node Cplant98 cluster running Linux achieved 125.2 GFLOPS. (see http://www.cs.sandia.gov/cplant/. Under the heading 'Info' click on 'News'). That would currently place the Cplant cluster as #53 on the current TOP 500 list ( http://www.top500.org ). This will not be the position the cluster gets on the next edition of the list as it's not due until November. But I think it's safe to assume that we now have a machine running Linux as a solid top 100 contender in the TOP 500 list.
On the question whether Cplant is another Beowulf machine, the FAQ says: "Not really. The Cplant project has some broader goals than traditional Beowulf systems. We are not trying to build a machine for a small number of users to run a small number of applications on a small number of machines. We are trying to build a production machine for hundreds of users to run all types of parallel applications on potentially thousands of nodes. We are essentially trying to build a commodity-based machine patterned after the design of the Intel TeraFLOPS machine."
