Dear Espresso developers
I want to know if it is necessary in P3M method that the box shape be a cube or not? If not, why in the P3M.c we use just box_l[0] to define parameters such as p3m.r_cut_iL? If yes what is the option for a box with different edge size?
As it can be seen those lines of the code which check for the equality of the edges are now commented.
Best regards
Farnoush