&GLOBAL
  PRINT_LEVEL LOW
&END GLOBAL

&FORCE_EVAL
  METHOD FIST
  &MM
    &FORCEFIELD
      PARMTYPE AMBER
      PARM_FILE_NAME ../sample_top/ch4.top
    &END FORCEFIELD
    &POISSON
      &EWALD
        EWALD_TYPE NONE
      &END EWALD
    &END POISSON
  &END MM
  &SUBSYS
    &CELL
      ABC [angstrom] 15 15 15
      ALPHA_BETA_GAMMA 90 90 90
    &END CELL
    &TOPOLOGY
      CONN_FILE_FORMAT AMBER
      CONN_FILE_NAME ../sample_top/ch4.top
      COORD_FILE_FORMAT CRD
      COORD_FILE_NAME ../sample_crd/ch4.crd
    &END TOPOLOGY
  &END SUBSYS
&END FORCE_EVAL
