The Hubble Volume Project is a joint effort of the Virgo Consortium and collaborators in U.S., Canada, U.K., and Germany. To study the formation of clusters of galaxies, filaments and void-structures, a significant fraction of the entire observable universe is modelled and simulated by employing one billion(=1000000000) mass particles. This is the largest such computer simulation ever done. The 512-processor Garching T3E parallel computer was used for this simulation, which produced almost a Terabyte of output data in some 70 hours.
An important aspect associated with the Hubble Volume Simulations is that data are output along a light-cone so the clustering evolution is incorporated in output data.