i want to evaluate the number of contacts of a group of particles with themselves. Basically i want to know if a group of particles stays "intact" all the time or gets "fractured" over time. For this i found the interesting compute "group/group" command. Unfortunatly when i use the command i get the error message:
"Pair style does not support compute group/group"
In the documentation it says there are no restrictions to this compute, so i'm curious what the reason can be. I'm using the pair_style gran model hertz ...
I appreciate any help with this!