[gmx-users] segmantation fault

[Bratin Kumar Das]

Dear all,
             During running nvt equilibration I got the following error.
gmx mdrun -v -s nvt.tpr -deffnm nvt -cpi nvt.cpt -append
                      :-) GROMACS - gmx mdrun, 2016.5 (-:

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GROMACS:      gmx mdrun, version 2016.5
Executable:   /usr/local/gromacs/bin/gmx
Data prefix:  /usr/local/gromacs
Working dir:
 /home/workstation/Desktop/Desktop/users/bratin/GROMACS/GROMACS-DHPS/GROMACS-DHPS-57
Command line:
  gmx mdrun -v -s nvt.tpr -deffnm nvt -cpi nvt.cpt -append

No previous checkpoint file present with -cpi option, assuming this is a
new run.

Back Off! I just backed up nvt.log to ./#nvt.log.1#

Running on 1 node with total 4 cores, 4 logical cores
Hardware detected:
  CPU info:
    Vendor: Intel
    Brand:  Intel(R) Xeon(R) CPU E3-1225 v5 @ 3.30GHz
    SIMD instructions most likely to fit this hardware: AVX2_256
    SIMD instructions selected at GROMACS compile time: AVX2_256

  Hardware topology: Basic

Reading file nvt.tpr, VERSION 2016.5 (single precision)
Changing nstlist from 20 to 25, rlist from 1.222 to 1.239

Using 1 MPI thread
Using 4 OpenMP threads


Back Off! I just backed up nvt.xtc to ./#nvt.xtc.1#

Back Off! I just backed up nvt.edr to ./#nvt.edr.1#
starting mdrun 'TRANSFERASE in water'
500000 steps,   1000.0 ps.
step 2100, will finish Fri Dec 20 14:48:35 2019
Segmentation fault (core dumped)

Why this is coming....please suggest me