&FORCE_EVAL
  METHOD Fist
  &MM
    &FORCEFIELD
      &CHARGE
        ATOM Na
        CHARGE +1.000
      &END CHARGE
      &CHARGE
        ATOM Cl
        CHARGE -1.000
      &END CHARGE
      &NONBONDED
        &BMHFT
          map_atoms NA NA
          atoms NA NA
          RCUT 10.0
        &END BMHFT
        &BMHFT
          map_atoms NA CL
          atoms NA CL
          RCUT 10.0
        &END BMHFT
        &BMHFT
          map_atoms CL CL
          atoms CL CL
          RCUT 10.0
        &END BMHFT
      &END NONBONDED
    &END FORCEFIELD
    &POISSON
      &EWALD
        EWALD_TYPE spme
        ALPHA .5
        GMAX 40
        O_SPLINE 6
      &END EWALD
    &END POISSON
  &END MM
  &SUBSYS
    &CELL
      ABC 22.480 22.480 22.480
    &END CELL
    &TOPOLOGY
      &GENERATE
         BONDLENGTH_MAX [bohr] 6.5
      &END
      COORD_FILE_NAME ../sample_pdb/NaCl.pdb
      COORDINATE PDB
    &END TOPOLOGY
  &END SUBSYS
&END FORCE_EVAL
&GLOBAL
  PROJECT NaCl
  RUN_TYPE MD
&END GLOBAL
&MOTION
  &MD
    ENSEMBLE NVT
    STEPS 10
    TIMESTEP 2.5
    TEMPERATURE 300.0
    &THERMOSTAT
      &NOSE
        LENGTH 3
        YOSHIDA 3
        TIMECON 1000
        MTS 2
      &END NOSE
      &PRINT
        &ENERGY
        &END
      &END
    &END
  &END MD
&END MOTION
