Hi Lammps users
When i am calculating in lammps. There is always some error. Do anybody knows about it？ Thanks you for replying my question. 
Here is the message：
LAMMPS (10 Aug 2015)
Reading data file …
orthogonal box = (0.618299 0.023565 1.51141) to (100.618 100.024 101.511)
1 by 2 by 5 MPI processor grid
reading atoms …
3600 atoms
scanning bonds …
3 = max bonds/atom
reading bonds …
4500 bonds
Finding 1-2 1-3 1-4 neighbors …
Special bond factors lj: 0 0 0
Special bond factors coul: 0 0 0
3 = max # of 1-2 neighbors
6 = max # of 1-3 neighbors
18 = max # of 1-4 neighbors
18 = max # of special neighbors
Reading potential file ffield.reax with DATE: 2010-02-19
WARNING: Using a manybody potential with bonds/angles/dihedrals and special_bond exclusions (…/pair.cpp:211)
Neighbor list info …
2 neighbor list requests
update every 10 steps, delay 0 steps, check no
master list distance cutoff = 12.5
ghost atom cutoff = 12.5
Setting up Verlet run …
Unit style : real
Current step: 0
Time step : 0.1
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 0 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 0 step (…/fix_qeq_reax.cpp:713)
Memory usage per processor = 333.183 Mbytes
Step Temp E_pair TotEng Press eb ea elp emol ev epen ecoa ehb et eco ew ep efi eqeq
0 800 -199664.6 -191082.26 -5983606.8 0 0 0 0 0 0 0 0 0 0 -1300.1155 -1.1632638e+08 0 1.1612801e+08
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 1 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 1 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 2 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 2 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 3 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 3 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 4 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 4 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 5 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 5 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 6 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 6 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 7 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 7 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 8 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 8 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 9 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 9 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 10 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 10 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 11 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 11 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 12 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 12 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 13 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 13 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 14 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 14 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 15 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 15 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 16 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 16 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 17 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 17 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 18 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 18 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 19 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 19 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 20 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 20 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 21 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 21 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 22 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 22 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 23 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 23 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 24 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 24 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 25 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 25 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 26 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 26 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 27 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 27 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 28 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 28 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 29 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 29 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 30 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 30 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 31 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 31 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 32 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 32 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 33 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 33 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 34 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 34 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 35 step (…/fix_qeq_reax.cpp:713)
WARNING: Fix qeq/reax CG convergence failed after 200 iterations at 35 step (…/fix_qeq_reax.cpp:713)
7 total processes killed (some possibly by mpirun during cleanup)