#physics#accelerators Suppose you want to simulate _all_ the particles in your bunch. How much RAM would that be at 128 bytes/particle? 1pC = 6.24 million particles = 762MB 1nC = 6.24 billion particles = 744GB 1uC = 6.24 trillion particles = 727TB
Why 128 bytes? Well 6-dimensional phase space with double precision values is only 48 bytes, but other book-keeping data (decay times, particle species etc.) tends to grow it. In the case of @[email protected] , the structure is 124 bytes in total.