program terminated without printing error

Hi,

I was trying to run a simple system with 200 5-bead chain located in the box. The input and data used are as attached. I tried on both Windows version (JUL 2012) and tarball installed LAMMPS (Dec 2012), and both program ended with no error printed.

I got the message below, and it stop after bonds.

C:\Users\mtlee\lmp>lmp.exe <in.c20
LAMMPS (1 Jul 2012)
Scanning data file …
1 = max bonds/atom
1 = max angles/atom
Reading data file …
orthogonal box = (0 0 0) to (50 50 50)
1 by 1 by 1 MPI processor grid
1000 atoms
800 bonds

I have checked my input and data format with the manual, but nothing looks wrong. Would you please give a hint where the problem could be? I would appreciate it.

Sincerely,

data.c20 (59.2 KB)

in.c20 (614 Bytes)

Hi,

In your input file, there is no group-id for fix command.

Changwoon Jang

Thank you Changwoon. I also noticed that after posting. However, it doesn’t affect the problem, so I didn’t re-post it.

Hi,

I was trying to run a simple system with 200 5-bead chain located in the
box. The input and data used are as attached. I tried on both Windows
version (JUL 2012) and tarball installed LAMMPS (Dec 2012), and both program
ended with no error printed.

has to be a windows thing.
the files work on linux
with the current version of lammps.
have you checked whether the
files have the proper end-of-line
markers (CR-LF) for windows
which are different from unix (LF only)?

axel.

You are right, Axel.

It is a testing job, so I was being lazy that I generated coordinates by MS EXCEL then copy to the data file. It must somehow included some unnecessary or excluded some necessary text while doing copy-n-paste, although it “looks” completely fine. I just wrote a small code on Linux to generate the coordinate, and it is running completely normal. Thank you for the hints.

Best,