500ps MD
&cntrl 
  imin = 0, irest = 1, ntx = 5,
  ntb = 0,igb=1,
  cut = 12.0, ntr = 0,
  ntc = 2, ntf = 2, 
  temp0 = 300.0, 
  ntt = 3, gamma_ln = 2.0,
  nstlim = 250000, dt = 0.002,
  ntpr = 250, ntwx = 1000, ntwr = 10000
 /
