Supercomputer takes 3 days to simulate a tornado
US-based scientists studying 'supercells' or rotating thunderstorms have simulated one of the tornado events in 2011 across the US. The 200,000-sq-km-wide storm was broken into two billion datasets and given to the supercomputer, which took three days and 20,000 processing cores to simulate the tornado. The simulation gives a first-time inside view of the "deadly twister", said the lead scientist.