An anonymous reader writes "The NSF has tentatively announced that the Track 1 leadership class supercomputer will be awarded to the National Center for Supercomputing Applications (NCSA) at the University of Illinois at Urbana-Champaign. The Track 2 award winner is University of Tennessee-Knoxville and its partners." From the article: "In the first award, the University of Illinois at Urbana-Champaign (UIUC) will receive $208 million over 4.5 years to acquire and make available a petascale computer it calls "Blue Waters," which is 500 times more powerful than today's typical supercomputers. The system is expected to go online in 2011. The second award will fund the deployment and operation of an extremely powerful supercomputer at the University of Tennessee at Knoxville Joint Institute for Computational Science (JICS). The $65 million, 5-year project will include partners at Oak Ridge National Laboratory, the Texas Advanced Computing Center, and the National Center for Atmospheric Research."