$VIB group   (relevant for RUNTYP=HESSIAN, METHOD=SEMINUM)                      
                                                                                
    Formatted restart data, consisting of energies,                             
gradients, and dipole moments.  This data is read in the                        
same format by which is was written to the RESTART file.                        
Just add a " $END" card, and place this group into the                          
input file to effect a restart.  If the final                                   
displacement's gradient was written as zero, delete the                         
entire last data set (energy, gradient, and dipole).                            
                                                                                
    In case the numerical hessian was run in groups (see                        
$GDDI), the $VIB entries will be out of order.  The                             
unsorted data can be read back in, if and only if the new                       
run is also using processor groups.  Note that assembling a                     
complete $VIB could be sent to one core in one group, but                       
use NGROUP=1 to make it look like a "group run".                                
                                                                                
    This group can be used to turn a less accurate single                       
differencing run into a more accurate double differencing                       
run (NVIB in $HESS).                                                            
                                                                                
    The mere presence of this group triggers the restart.                       
==========================================================                      
                                                                                
$VIB2 group      (relevant for hessians, METHOD=FULLNUM)                        
             (relevant for gradients, with NUMGRD=.TRUE.)                       
                                                                                
Formatted restart information, consisting of energy values,                     
as written to the RESTART file.  Just add a " $END" line at                     
the bottom, and place this group into the input file to                         
effect a restart.  This group has the same name ($VIB2),                        
but different contents, depending on whether you are                            
restarting a numerical gradient or a fully numerical                            
hessian job.                                                                    
                                                                                
The mere presence of this group triggers the restart.                           
===========================================================                     

generated on 7/7/2017