Production simulations
 &cntrl
  imin  = 0,
  irest    = 1,
  ntx      = 5,
  ntb      = 1,
  cut      = 9.0,
  ntr      = 0,
  ntc      = 2,
  ntf      = 2,
  tempi    = 300.0,
  temp0    = 300.0,
  ntt      = 3,
  gamma_ln = 1.0,
  ig       = -1,
  iwrap    = 1,
  ioutfm   = 1,
  nstlim   = 250000000
  dt       = 0.002,
  ntpr = 500, ntwx = 500, ntwr = -25000000
 /
 &ewald
  nfft1=32,
  nfft2=32,
  nfft3=32,
  order=4
 /
