The Roadrunner supercomputer, housed at Los Alamos National Laboratory (LLNL), will be decommissioned this Sunday because it has been replaced by smaller, faster, more efficient, and less-expensive systems. In 2008, Roadrunner became the first system to break the petaflop barrier by processing just over a quadrillion mathematical calculations per second. The supercomputer has been used over the last five years to model viruses and unseen parts of the universe, to better understand lasers, and for nuclear weapons work. Los Alamos is currently using a supercomputer called Cielo, which is slightly faster than Roadrunner, takes up less space, and costs about $54 million, compared to Roadrunner's $121 million cost.  To read further, please visit http://www.rdmag.com/news/2013/04/end-line-roadrunner-supercomputer.