13 March     2012   2:49:07.738 PM      
 
MD
  FORTRAN77 version
  A molecular dynamics program.
 
  NP, the number of particles in the simulation, is     1000
  ND, the spatial dimension, is        3
  STEP_NUM, the number of time steps, is      400
  DT, the size of each time step, is   0.100000E-03
 
  Initializing positions, velocities, and accelerations.
 
  Computing initial forces and energies.
 
  At each step, we report the potential and kinetic energies.
  The sum of these energies should be a constant.
  As an accuracy check, we also print the relative error
  in the total energy.
 
      Step      Potential       Kinetic        (P+K-E0)/E0
                Energy P        Energy K       Relative Energy Error
 
         0     498159.         0.00000         0.00000    
        40     498159.        0.484486E-01    0.162444E-10
        80     498159.        0.201438        0.150883E-10
       120     498159.        0.459101        0.118849E-10
       160     498159.        0.821542        0.556827E-11
       200     498158.         1.28890       -0.490248E-11
       240     498158.         1.86137       -0.205635E-10
       280     498157.         2.53918       -0.424372E-10
       320     498156.         3.32259       -0.715900E-10
       360     498155.         4.21191       -0.109053E-09
       400     498154.         5.20750       -0.155740E-09
 
  Elapsed cpu time for main computation:
     40.0441     seconds
 
MD:
  Normal end of execution.
 
13 March     2012   2:49:47.883 PM