If you're going to create a virtual universe, you're going to need a big computer — like the Pleiades supercomputer at NASA's Ames Research Center in California's Silicon Valley. Researchers have just made the most accurate computer simulation showing the evolution of large-scale structure in the universe, known as the Bolshoi simulation, available to astrophysicists around the world.
Bolshoi (which takes its name from the Russian word for "grand" or "big") took in data from ground-based and space-based instruments, including the best readings of the big bang's afterglow from NASA's Wilkinson Microwave Anisotropy Probe, or WMAP. Then it used 6 million CPU hours on Pleiades, ranked as the world's seventh-fastest supercomputer, to crunch all that data into a virtual representation of the universe evolving over time.
The time-lapse simulation occupies nearly 90 trillion bytes of memory, or the equivalent of nearly 10,000 typical movie DVDs.
Read More: http://cosmiclog.msnbc.msn.com/_news/2011/09/30/8065274-how-to-build-a-virtual-cosmos
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