[gmx-users] errors on restart with tpbconv

[gianluca santarossa]

Dear gmx users,
I sometimes need to recover a simulation after a crash, using the command
tpbconv -e -f
It usually works, but sometimes it exists with errors like:
READING COORDS, VELS AND BOX FROM TRAJECTORY traj.trr...

trn version: GMX_trn_file (single precision)
Read frame     11: step   5000 time    5.000

Using frame of step 5000 time 5
Opened ener.edr as single precision energy file
Reading frame      8 time    4.000
Last frame read 8
WARNING: Incomplete frame: nr      9 time    4.000

-------------------------------------------------------
Program tpbconv, VERSION 3.3.1
Source code file: enxio.c, line: 401

Fatal error:
Could not find frame with time 5.000000 in 'ener.edr'
-------------------------------------------------------

The error raises because the system did not write the last computed 
energies on ener.edr, while it wrote the trajectories on traj.trr.
In my grompp.mdp file I specified the same frequencies for all of the 
log files:
nstxout                  = 500
nstvout                  = 500
nstlog                   = 500
nstenergy                = 500
nstxtcout                = 500

So, what can I do to overcome these problems?
Thanks,
Gianluca