# task_type, task_subtype, depth, count sort none 0 12 self density 0 12 self gradient 0 12 self force 0 12 pair density 0 12 pair gradient 0 12 pair force 0 12 ghost_in none 0 12 ghost none 0 12 ghost_out none 0 12 extra_ghost none 0 12 drift_part none 0 12 hydro_end_force none 0 12 kick1 none 0 12 kick2 none 0 12 timestep none 0 12 collect none 0 12