Standard minimization protocol (constant volume only, NO shake!)
 &cntrl
  imin = 1, maxcyc = 14000, ntmin=1, ncyc = 5000,
  ntb=1, ntp = 0, ntwr=500, ntwe=500,
  dielc = 1,SCNB=1.0, SCEE=1.0,
  cut = 8.0, nsnb = 25,
  ntpr = 200,
  icfe=0,
 &end 
