Monday, October 8, 2007, 1:26pm
This "grand challenge" project features the largest N body simulation ever performed: we have simulated the 13.7 Gyr long evolution of 4096^3 dark matter particles in a 2 Gpc/h periodic box, running the RAMSES code for a couple of month on the 6144 processors of the new BULL supercomputer of the CEA supercomputing center (Centre de Calcul Recherche et Technologie).
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For the first time, we have performed a simulation of half the observable universe, with enough resolution to describe a Milky Way-like galaxy with more than 100 dark matter particles.
The video is pretty nifty.