[gmx-users] results of energy minimization

s lal badshah shahbiochemist at yahoo.com
Wed Mar 12 11:58:32 CET 2008


Dear gromacs experts,
I have run the energy minimization of a protein.With the tail command it shows the following results:
ahmad at uop:~/protein> tail -15 md.log
 NS-Pairs                         94.365846     1981.682766    20.0
 Reset In Box                      0.569385        5.124465     0.1
 Shift-X                           0.569310        3.415860     0.0
 CG-CoM                            0.190785        5.532765     0.1
 Bonds                             0.394530       16.964790     0.2
 Angles                            0.253320       41.291160     0.4
 Propers                           0.009855        2.256795     0.0
 RB-Dihedrals                      0.086835       21.448245     0.2
-----------------------------------------------------------------------
 Total                                          9893.632954   100.0
-----------------------------------------------------------------------

               NODE (s)   Real (s)      (%)
       Time:     15.000     15.000    100.0
Finished mdrun on node 0 Wed Mar 12 12:50:59 2008
I have check the em.log file, which shows the following data:

Steepest Descents converged to machine precision in 15 steps,
but did not reach the requested Fmax < 1000.
Potential Energy  = -1.9742134e+21
Maximum force     =  4.1648520e+06 on atom 1934
Norm of force     =  5.6557945e+06
Is the energy minimization finished or not? when I use the top command the values fluctuates.As there any specific value or notation below the command name from which I know that energy minimization is running or finished.As in amber software the word sander is written below the command when check with "top ".Here X is written.
Regards,
Lal badshah.

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