Equilibration at 300 K and 1 atm without restraints
&cntrl
  imin=0,
  irest=1,
  ntx=5,
  nstlim=50000,
  dt=0.002,
  ntc=2,
  ntf=2,
  temp0=300.0,
  ntpr=500,
  ntwx=500,
  ntwr=5000,
  ntb=2,
  ntp=1,
  taup=2.0,
  cut=10.0,
  ntt=3,
  gamma_ln=1.0,
  ig=-1,
  ntr=0,
/