HILLS BIN
HILLS_BIN = [Integer]
Default: HILLS_BIN = NSW
Description: HILLS_BIN sets the number of steps after which the bias potential is updated in a metadynamics run (in case VASP was compiled with -Dtbdyn).
In metadynamics (MDALGO=11 | 21), the bias potential is given as
Thre parameters (HILLS_H, HILLS_W, and HILLS_BIN) must be provided by the user.
The number of steps after which the bias potential is updated is set by HILLS_BIN.